24th US Championship and World Championship Zonal; 1975
June 7-26
Oberlin, OH

                          Rtng  1 2 3 4 5 6 7 8 9 0 1 2 3 4
 1. GM Browne, Walter     2562  x ½ ½ 1 ½ ½ ½ ½ ½ ½ ½ 1 1 1  8½- 4½
 2. IM Rogoff, Ken        2470  ½ x ½ ½ ½ 0 ½ ½ ½ 1 1 1 1 ½  8 - 5
 3.    Vukcevich, Milan   2469  ½ ½ x ½ 1 0 ½ 1 ½ ½ 1 0 1 ½  7½- 5½
 4. GM Byrne, Robert      2618  0 ½ ½ x ½ ½ ½ 1 ½ ½ ½ 1 ½ ½  7 - 6
 5. GM Reshevsky, Sammy   2510  ½ ½ 0 ½ x ½ ½ ½ ½ ½ 1 ½ 1 ½  7 - 6
 6. GM Lombardy, William  2507  ½ 1 1 ½ ½ x ½ 0 1 ½ 0 ½ 0 ½  6½- 6½
 7. GM Bisguier, Arthur   2474  ½ ½ ½ ½ ½ ½ x ½ ½ ½ ½ ½ ½ ½  6½- 6½
 8. IM Tarjan, James      2498  ½ ½ 0 0 ½ 1 ½ x 1 ½ 0 1 ½ ½  6½- 6½
 9.    Commons, Kim       2417  ½ ½ ½ ½ ½ 0 ½ 0 x ½ 1 0 1 1  6½- 6½
10. GM Kavalek, Lubomir   2570  ½ 0 ½ ½ ½ ½ ½ ½ ½ x 0 ½ ½ ½  5½- 7½
11.    Peters, John       2378  ½ 0 0 ½ 0 1 ½ 1 0 1 x ½ 0 ½  5½- 7½
12. IM Mednis, Edmar      2458  0 0 1 0 ½ ½ ½ 0 1 ½ ½ x ½ ½  5½- 7½
13. IM Grefe, John        2469  0 0 0 ½ 0 1 ½ ½ 0 ½ 1 ½ x 1  5½- 7½
14. GM Benko, Pal         2512  0 ½ ½ ½ ½ ½ ½ ½ 0 ½ ½ ½ 0 x  5 - 8


AVERAGE RATING:  2494

ROUND BY ROUND RESULTS

                   1 2 3 4 5 6 7 8 9 0 1 2 3
 1. GM Browne      ½ 1 1 ½ ½ ½ 1 ½ ½ ½ 1 ½ ½   +4
 2. IM Rogoff      ½ 1 1 ½ 1 ½ 1 ½ ½ ½ 0 ½ ½   +3
 3.    Vukcevich   1 1 0 ½ ½ ½ 1 0 ½ ½ 1 ½ ½   +2
 4. GM Byrne       ½ ½ ½ ½ ½ 1 0 ½ ½ ½ ½ 1 ½   +1
 5. GM Reshevsky   ½ ½ 1 ½ ½ ½ 1 ½ ½ ½ 0 ½ ½   +1
 6. GM Lombardy    ½ 0 1 0 ½ ½ 1 0 ½ ½ 1 ½ ½    =
 7. GM Bisguier    ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½ ½    =
 8. IM Tarjan      0 1 ½ ½ 1 0 1 ½ ½ ½ ½ 0 ½    =
 9.    Commons     ½ ½ ½ ½ 0 ½ 0 1 ½ 1 1 0 ½    =
10. GM Kavalek     ½ ½ ½ 0 ½ ½ 0 ½ ½ ½ ½ ½ ½   -2
11.    Peters      ½ 0 0 1 ½ 1 0 1 ½ ½ 0 0 ½   -2
12. IM Mednis      ½ 0 0 ½ ½ 0 0 1 ½ ½ ½ 1 ½   -2
13. IM Grefe       ½ 0 0 1 0 1 0 ½ ½ 0 ½ 1 ½   -2
14. GM Benko       ½ ½ ½ ½ ½ 0 ½ 0 ½ ½ 0 ½ ½   -3




ROUND 1 (/75)
Draw	Byrne vs Lombardy
Black	Tarjan vs Vukcevich
Draw	Browne vs Peters
Draw	Kavalek vs Benko
Draw	Mednis vs Grefe
Draw	Reshevsky vs Bisguier
Draw	Rogoff vs Commons

ROUND 2 (/75)
Black	Lombardy vs Tarjan
Black	Grefe vs Vukcevich
Draw	Benko vs Byrne
Draw	Bisguier vs Kavalek
Draw	Commons vs Reshevsky
Black	Mednis vs Browne
Black	Peters vs Rogoff

ROUND 3(/75)
Draw	Byrne vs Bisguier
Draw	Tarjan vs Benko
Black	Vukcevich vs Lombardy
White	Reshevsky vs Peters
White	Browne vs Grefe
Draw	Kavalek vs Commons
White	Rogoff vs Mednis

ROUND 4 (/75)
Draw	Bisguier vs Tarjan
Draw	Benko vs Vukcevich
Draw	Mednis vs Reshevsky
Draw	Commons vs Byrne
Draw	Browne vs Rogoff
White	Grefe vs Lombardy
White	Peters vs Kavalek

ROUND 5 (/75)
Draw	Vukcevich vs Bisguier
Draw	Reshevsky vs Browne
Draw	Byrne vs Peters
Draw	Kavalek vs Mednis
Draw	Lombardy vs Benko
White	Rogoff vs Grefe
White	Tarjan vs Commons

ROUND 6 (/75)
Draw	Bisguier vs Lombardy
White	Peters vs Tarjan
Draw	Commons vs Vukcevich
Draw	Rogoff vs Reshevsky
Black	Mednis vs Byrne
Draw	Browne vs Kavalek
White	Grefe vs Benko

ROUND 7 (/75)
White	Tarjan vs Mednis
White	Vukcevich vs Peters
White	Reshevsky vs Grefe
Black	Byrne vs Browne
Draw	Benko vs Bisguier
Black	Kavalek vs Rogoff 
White	Lombardy vs Commons

ROUND 8 (/75)
White	Peters vs Lombardy
Draw	Browne vs Tarjan
White	Mednis vs Vukcevich
Draw	Reshevsky vs Kavalek
Draw	Rogoff vs Byrne
White	Commons vs Benko
Draw	Grefe vs Bisguier

ROUND 9 (/75)
Draw	Tarjan vs Rogoff
Draw	Vukcevich vs Browne
Draw	Byrne vs Reshevsky
Draw	Benko vs Peters
Draw	Bisguier vs Commons
Draw	Kavalek vs Grefe
Draw	Lombardy vs Mednis

ROUND 10 (/75)
Draw	Rogoff vs Vukcevich
Draw	Reshevsky vs Tarjan
Draw	Kavalek vs Byrne
Draw	Browne vs Lombardy
Black	Grefe vs Commons
Draw	Mednis vs Benko
Draw	Peters vs Bisguier

ROUND 11 (/75)
White	Lombardy vs Rogoff
Draw	Tarjan vs Kavalek
White	Vukcevich vs Reshevsky
Draw	Byrne vs Grefe
Black	Benko vs Browne
Draw	Bisguier vs Mednis
White	Commons vs Peters

ROUND 12 (/75)
Draw	Browne vs Bisguier
Draw	Reshevsky vs Lombardy
White	Byrne vs Tarjan
Draw	Kavalek vs Vukcevich
White	Grefe vs Peters
White	Mednis vs Commons
Draw	Rogoff vs Benko

ROUND 13 (/75)
Draw	Vukcevich vs Byrne
Draw	Benko vs Reshevsky
Draw	Bisguier vs Rogoff
Draw	Commons vs Browne 
Draw	Lombardy vs Kavalek
Draw	Peters vs Mednis
Draw	Tarjan vs Grefe

  • As a result of this tournament, Walter Browne, and Ken Rogoff qualified for the 1976 Interzonals. Robert Byrne also qualified as a result of having played in the 1974 Candidates Matches. Lubomir Kavalek played in one of the 1976 Interzonals also, though I don't know why.

  • Arthur Bisguier is the only player ever to have drawn all of his games in US Championship play.

  • This tournament featured a dispute perhaps unique in the annals of chess; a player complaining to the tournament director over the refusal of another player to honor an illegal agreement to pre-arrange the result of a game. Andrew Soltis tells the story in "The US Chess Championship: 1845-1985:"

    The second prize, and [second] interzonal invitation, depended on two pairings. If Rogoff were to lose with Black to Bisguier, then Reshevsky, the closest to him, could tie the young Yale student by defeating a now-demoralized Benko.

    What happened next did not reflect honorably on the character of U.S. Championship participants. In fact, it recalled the long-forgotten Grundy incident of the 5th American Chess Congress. According to Reshevsky, on the night before the final round, he approached Benko with a proposition: If we see that Rogoff is drawing or winning against Bisguier tomorrow, he said, there's no point in our exerting ourselves. We might as well draw because a win means nothing to either of us. But if Rogoff loses, Reshevsky went on, then I'll play to win because I can force a playoff for the Biel, Switzerland, interzonal spot by tying him for second place.

    This in itself is against international chess etiquette. But Reshevsky added another element: If he managed to get into the interzonal, Reshevsky said he would choose Benko as his second there and there would be a nice salary for that. (According to Benko, the question of a last- round draw came up in the middle of the tournament and he indicated his willingness to draw.)

    In any event, there was no repeat of "Grundy" the next day. Rogoff drew quickly, thereby clinching the trip to Biel and also allowing Bisguier to establish a record by drawing all 13 of his games in the Championship. Seeing this, Reshevsky indicated to Benko that it was time to draw as they had agreed. But Benko refused, pointing out that he had the better position and, more important, he would finish a humiliating last in the tournament if he only drew. "I must win to get out of last place," he told Reshevsky.

    Reshevsky was outraged; he complained to tournament director Tim Redman that his opponent was not living up to an highly irregular agreement and, when he got no help from that quarter, began angrily repeating his draw offer at the table to Benko. He even tried enlisting the help of bystander Bisguier to convince Benko. All this served only to upset Reshevsky enough to throw away a pawn, but he managed to hold the position for a draw when play resumed the next day. Benko says he was too upset to win and the incident was soon forgotten.

    Chess Life & Review (September 1975) tells the story like this:

    Going into the [final] round Reshevsky still had an outside chance of getting into a playoff for the second Interzonal spot, and the night before the game he approached his opponent, Pal Benko, with some "ideas." Benko, who had been Sammy's second at the Petropolis Interzonal, was told by Reshevsky that Sammy would watch Rogoff's game with Bisguier and should Rogoff win or draw Sammy wanted a draw since the Interzonal spot would then be out of reach. If Rogoff were to lose then Reshevsky would play for a win, and he informed Benko that if he did make it to the Interzonal Pal would again be his second and there would be a good bit of money involved. All of this was just great for Reshevsky, but Pal, who'd finished 2nd in last year's Championship, was in last place and he needed a victory to avoid finishing there.

    The next day Rogoff drew quickly with Bisguier, giving Arthur a record of some sort for his thirteen draws, and that draw, combined with Vukcevich's draw with Byrne, gave Rogoff second place and a trip to the Interzonal. Seeing that his last chance of qualification was gone, Reshevsky offered a draw which he apparently felt sure Benko would accept, but Pal just looked up and said, "I cannot take a draw, I must win in order to get out of last place." As the playing session continued Reshevsky pestered Benko repeatedly for a draw, noting every other drawn game, to which Pal could only say, "It doesn't matter, I have to win to avoid finishing last."

    Reshevsky became more and more upset, finally going over to a friend of Benko's in the spectator area and demanding that Pal be persuaded to take a draw! Benko pressed on, and both players got into time trouble during which Reshevsky dropped a pawn. In the adjourned position Pal had good winning chances but, very upset by Reshevsky's slamming down on his clock and other niceties, he studied the position only for a short time, coming to the conclusion that he could win.

    The next day, this was the only adjourned game, and it was obvious that neither player had cooled off; Reshevsky elected to sit at a different table when not on the move. (Bill Lombardy, by some manner of fate, was scheduled to drive both Benko and Reshevsky home; it must have been an interesting trip.)

    Due to his lack of study in the adjourned position, Benko had to spend a long time on his moves and got into time trouble, during which he had what he termed a "hallucination." Finally, Benko had to settle for a draw. For Reshevsky it was a great relief, but for Pal it was another case of being too upset to play well. The look on his face and the emotion in his voice as he tried to talk about the game to Bill Lombardy told that story plainly.

    Blissfully unaware that the deal he thought he had made might not be completely kosher under a strict interpretation of the USCF Rulebook (to put it mildly), Reshevsky even took his case to the Letters to the Editor section of Chess Life & Review (remarkably similar to that old joke about calling the Police to report that someone has stolen your pot). The December 1975 issue contained this letter from Sam the Man himself:

    ... The detailed descripton of what transpired between me and Benko, however, disturbed me because a very important detail was left out by the one who gave Mr. Drummond the information about the episode. What was left out was the very significant fact that Benko indicated to me the day before our encounter that he would accept a draw if and when I would offer it. In view of this fact, I took more time in the early stage of the game, watching to see what the outcome of Rogoff's game would be - a fact which brought me unnecessarily into time trouble. I expect that Benko will deny this fact and will produce his close friend to prove his denial, but his friend is not the most credible witness.

    I am surprised that Mr. Drummond did not find it necessary to check with me as to the details of the episode before he presented it publicly.

    While it's true that Mr. Drummond's account does omit that very important detail, one might question whether including it makes Reshevsky look better or makes him look worse.

    [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.07"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "William James Lombardy"] [ECO "B06"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "44"] 1.e4 d6 2.d4 g6 3.Nc3 Bg7 4.f4 Nc6 5.Be3 Nf6 6.Nf3 O-O 7.Be2 e6 8.O-O b6 9.h3 Bb7 10.e5 Nd5 11.Nxd5 exd5 12.Qd2 f6 13.exf6 Qxf6 14.Rae1 Rae8 15.c3 Bh6 16.Ng5 Bxg5 17.fxg5 Qd8 18.g4 Rxf1+ 19.Bxf1 Qd7 20.Bd3 Nd8 21.Bf2 Rxe1+ 22.Qxe1 Nf7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.07"] [EventDate "?"] [Round "1"] [Result "0-1"] [White "James Tarjan"] [Black "Milan Rodoje Vukcevich"] [ECO "A28"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "100"] 1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.e4 Bb4 5.d3 Bxc3+ 6.bxc3 d6 7.g3 O-O 8.Bg2 h6 9.O-O Be6 10.Nh4 Rb8 11.a4 Na5 12.Be3 b6 13.Nf5 Bxf5 14.exf5 Re8 15.h4 e4 16.g4 Nh7 17.g5 hxg5 18.hxg5 Nxg5 19.Qh5 Nh7 20.Kh2 Nf6 21.Qh3 exd3 22.Bg5 Qe7 23.Rad1 d2 24.Rxd2 Qe5+ 25.f4 Qe3 26.Rd3 Qxh3+ 27.Rxh3 Re3 28.Bf3 Rbe8 29.Kg2 Nxc4 30.Rfh1 Kf8 31.Rh8+ Ke7 32.Rxe8+ Kxe8 33.Bc6+ Ke7 34.Rh8 d5 35.Bxd5 Rxc3 36.Bxc4 Rxc4 37.Rg8 Rc5 38.Rxg7 Rxf5 39.Kf3 Kf8 40.Bh6 Rh5 41.Rh7+ Ke7 42.Rh8 Ke6 43.a5 Rxa5 44.Bg5 Ra3+ 45.Ke2 Nd5 46.Re8+ Kd7 47.Rd8+ Kc6 48.f5 f6 49.Bh4 Re3+ 50.Kd2 Re5 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.07"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "John A Peters"] [ECO "B83"] [WhiteElo "2550"] [BlackElo "2335"] [PlyCount "42"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O a6 8.f4 Qc7 9.Kh1 O-O 10.a4 Nc6 11.Be3 Re8 12.Qe1 Nxd4 13.Bxd4 e5 14.fxe5 dxe5 15.Qg3 Bd8 16.Be3 Kh8 17.Rad1 Be6 18.Bf3 Rc8 19.Rf2 Qa5 20.Rfd2 h6 21.Rd3 Be7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.07"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Lubomir Kavalek"] [Black "Pal Benko"] [ECO "B08"] [WhiteElo "2555"] [BlackElo "2515"] [PlyCount "23"] 1.e4 d6 2.d4 g6 3.Nc3 Bg7 4.Nf3 Nf6 5.Be2 O-O 6.O-O Bg4 7.Bg5 Nc6 8.Qd2 e5 9.dxe5 dxe5 10.Rad1 Bxf3 11.Bxf3 Nd4 12.Qe3 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.07"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Edmar J Mednis"] [Black "John Alan Grefe"] [ECO "B83"] [WhiteElo "2455"] [BlackElo "2470"] [PlyCount "39"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.Be3 Nc6 9.f4 a6 10.a4 Qc7 11.Qe1 Nxd4 12.Bxd4 e5 13.fxe5 dxe5 14.Qg3 Bc5 15.Bxc5 Qxc5+ 16.Kh1 Kh8 17.Rxf6 gxf6 18.Qh4 Rg8 19.Qxf6+ Rg7 20.Qd8+ 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.07"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Samuel Reshevsky"] [Black "Arthur Bisguier"] [ECO "D60"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "46"] 1.Nf3 d5 2.c4 e6 3.d4 Nf6 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.cxd5 Nxd5 8.Bxe7 Qxe7 9.Rc1 Nxc3 10.Rxc3 c5 11.Bb5 cxd4 12.Qxd4 Nf6 13.O-O Rd8 14.Qh4 Nd5 15.Qxe7 Nxe7 16.Rfc1 Bd7 17.Bxd7 Rxd7 18.Ne5 Rdd8 19.Rc7 Rac8 20.Kf1 f6 21.Nd3 Nc6 22.Rxc8 Rxc8 23.Ke2 Kf7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.07"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Kenneth S Rogoff"] [Black "Kim S Commons"] [ECO "D60"] [WhiteElo "2445"] [BlackElo "2415"] [PlyCount "46"] 1.Nf3 d5 2.c4 e6 3.d4 Nf6 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.cxd5 Nxd5 8.Bxe7 Qxe7 9.Rc1 Nxc3 10.Rxc3 c5 11.Bb5 cxd4 12.Qxd4 Nf6 13.O-O Rd8 14.Qh4 Nd5 15.Qxe7 Nxe7 16.Rfc1 Bd7 17.Bxd7 Rxd7 18.Ne5 Rdd8 19.Rc7 Rac8 20.Kf1 f6 21.Nd3 Nc6 22.Rxc8 Rxc8 23.Ke2 Kf7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.08"] [EventDate "?"] [Round "2"] [Result "0-1"] [White "William James Lombardy"] [Black "James Tarjan"] [ECO "D94"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "69"] 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Bd2 c5 7.dxc5 Na6 8.cxd5 Nxc5 9.Bc4 Bf5 10.O-O Rc8 11.Nd4 Bd3 12.Bxd3 Nxd3 13.Qb3 Nc5 14.Qa3 Qb6 15.Rac1 Nd3 16.Rb1 Ne5 17.Rfd1 Rfd8 18.Be1 Nc4 19.Qb3 Nxd5 20.Nxd5 Rxd5 21.Rbc1 Rdc5 22.Bb4 R5c7 23.Bc3 a6 24.Rb1 Qxb3 25.axb3 Na3 26.Rbc1 Bxd4 27.exd4 Nb5 28.Rd3 Rd7 29.Rcd1 Rd5 30.f3 Rcd8 31.Kf2 e5 32.Ke3 exd4 33.Bxd4 Re8+ 34.Kf2 Nxd4 35.Rxd4 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.08"] [EventDate "?"] [Round "2"] [Result "0-1"] [White "John Alan Grefe"] [Black "Milan Rodoje Vukcevich"] [ECO "B50"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "62"] 1.e4 c5 2.Nf3 d6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 g6 6.Nd5 Bg7 7.Nb5 Rb8 8.c4 a6 9.Nbc3 e6 10.Ne3 Nge7 11.Nc2 O-O 12.h4 b5 13.cxb5 axb5 14.Bf4 b4 15.Ne2 Qa5 16.b3 Bxa1 17.Qxa1 e5 18.Bh6 Rd8 19.h5 d5 20.hxg6 Nxg6 21.Ng3 Qc5 22.Ne3 Nd4 23.exd5 f5 24.Bc4 f4 25.d6+ Kh8 26.Qb1 Qxd6 27.Ne4 Qc6 28.Ng5 Rb7 29.Nf7+ Rxf7 30.Bxf7 fxe3 31.Bg5 Qc3+ 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.08"] [EventDate "?"] [Round "2"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "Robert Eugene Byrne"] [ECO "E99"] [WhiteElo "2515"] [BlackElo "2600"] [PlyCount "25"] 1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5 11.g4 a5 12.Nd3 b6 13.Bd2 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.08"] [EventDate "?"] [Round "2"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Lubomir Kavalek"] [ECO "B40"] [WhiteElo "2445"] [BlackElo "2555"] [PlyCount "26"] 1.e4 c5 2.Nf3 e6 3.c3 d5 4.exd5 Qxd5 5.d4 Nf6 6.Bd3 Be7 7.O-O O-O 8.Be3 cxd4 9.cxd4 b6 10.Nc3 Qd8 11.Qe2 Bb7 12.Rad1 Nc6 13.a3 Nd5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.08"] [EventDate "?"] [Round "2"] [Result "1/2-1/2"] [White "Kim S Commons"] [Black "Samuel Reshevsky"] [ECO "E12"] [WhiteElo "2445"] [BlackElo "?"] [PlyCount "44"] 1.c4 Nf6 2.Nc3 e6 3.Nf3 b6 4.d4 Bb7 5.e3 d5 6.cxd5 exd5 7.Bd3 Bd6 8.O-O O-O 9.b3 a6 10.Bb2 Nbd7 11.Rc1 Ne4 12.Qc2 Re8 13.Ne2 Rc8 14.Ng3 g6 15.Qe2 Ra8 16.Rc2 f5 17.Rfc1 c6 18.Rxc6 Bxc6 19.Rxc6 Nb8 20.Rc1 Ra7 21.Ne5 Rc7 22.Rf1 b5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.08"] [EventDate "?"] [Round "2"] [Result "0-1"] [White "Edmar J Mednis"] [Black "Walter Shawn Browne"] [ECO "B92"] [WhiteElo "2455"] [BlackElo "2550"] [PlyCount "74"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 Nbd7 7.Be3 e6 8.a4 b6 9.f4 Bb7 10.Bf3 Rc8 11.O-O Rxc3 12.bxc3 Nxe4 13.Ne2 Qc7 14.Qe1 d5 15.Bd4 Bc5 16.Ng3 f5 17.Qe3 O-O 18.Bxc5 bxc5 19.a5 e5 20.Ne2 g5 21.fxe5 f4 22.Qc1 Nxe5 23.Rb1 Nc4 24.Qe1 Ned2 25.Rf2 Nxb1 26.Qxb1 Nd2 27.Bxd5+ Bxd5 28.Qd1 Rd8 29.Qxd2 Bxg2 30.Qe1 Ba8 31.h4 Qc6 32.Kh2 Qh6 33.Ng1 g4 34.Qe7 Rf8 35.Rd2 g3+ 36.Kh3 Qg6 37.Rd6 Qf5# 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.08"] [EventDate "?"] [Round "2"] [Result "0-1"] [White "John A Peters"] [Black "Kenneth S Rogoff"] [ECO "E54"] [WhiteElo "2335"] [BlackElo "2445"] [PlyCount "54"] 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Bb4 7.Bd3 O-O 8.O-O dxc4 9.Bxc4 Nbd7 10.a3 Bxc3 11.bxc3 Qc7 12.Qd3 b6 13.Re1 Bb7 14.Ba2 Rac8 15.Bb2 Bd5 16.Nd2 Bxa2 17.Rxa2 Rfd8 18.Qe2 e5 19.Nf3 exd4 20.Nxd4 Re8 21.Qd1 Rxe1+ 22.Qxe1 Re8 23.Qd1 Ne5 24.h3 Nd3 25.Nf3 Qc4 26.Qb1 Ne4 27.Ba1 Nc1 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.09"] [EventDate "?"] [Round "3"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "Arthur Bisguier"] [ECO "C78"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "38"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.Re1 Bc5 8.c3 O-O 9.d4 Bb6 10.Bg5 h6 11.Bh4 d6 12.a4 exd4 13.cxd4 Re8 14.axb5 axb5 15.Rxa8 Bxa8 16.Qd3 Na5 17.Bxf6 Qxf6 18.Bc2 Nc6 19.Qxb5 Bxd4 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.09"] [EventDate "?"] [Round "3"] [Result "1/2-1/2"] [White "James Tarjan"] [Black "Pal Benko"] [ECO "B40"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "57"] 1.e4 c5 2.Nf3 e6 3.c3 d5 4.e5 Bd7 5.Be2 Nc6 6.d4 Nge7 7.Na3 cxd4 8.Nb5 Ng6 9.cxd4 a6 10.Nc3 Be7 11.Be3 Na5 12.O-O Rc8 13.Nd2 Bb4 14.Rc1 Ne7 15.Bd3 Bxc3 16.Rxc3 Bb5 17.Bxb5+ axb5 18.Qe2 Qd7 19.Rxc8+ Nxc8 20.Rc1 O-O 21.b3 Na7 22.Nf3 Rc8 23.Qd2 Rxc1+ 24.Qxc1 b6 25.h3 Qc8 26.Qa3 Qf8 27.Qc1 Qc8 28.Qa3 Qf8 29.Qc1 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.09"] [EventDate "?"] [Round "3"] [Result "0-1"] [White "Milan Rodoje Vukcevich"] [Black "William James Lombardy"] [ECO "B48"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "132"] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nc3 e6 6.Be3 b6 7.g3 Bb7 8.Bg2 Rc8 9.O-O Nf6 10.Bf4 e5 11.Ncb5 Qb8 12.Nf5 Ba6 13.Nbd6+ Bxd6 14.Nxd6+ Ke7 15.Nxc8+ Rxc8 16.Bg5 Bxf1 17.Qxf1 h6 18.Bd2 Qd6 19.Rd1 Qc5 20.c3 Nd8 21.Qa6 Rc7 22.Be3 Qa5 23.Qxa5 bxa5 24.f3 Ne6 25.Bf1 d6 26.Rd2 Nd7 27.h4 Nb6 28.Rg2 a4 29.Bd2 Nc5 30.Be1 g5 31.hxg5 hxg5 32.Rd2 g4 33.Kf2 Rc8 34.Ke3 gxf3 35.Kxf3 Rh8 36.Rf2 Rh6 37.Ke3 Rg6 38.Re2 Nc4+ 39.Kf3 Rf6+ 40.Kg2 Nd3 41.b3 Na5 42.bxa4 Nc4 43.Kg1 Rf3 44.g4 Nxe1 45.Rxe1 Nd2 46.Bg2 Rxc3 47.Rd1 Rc2 48.a3 Kf6 49.Re1 Kg5 50.Re3 Rc4 51.a5 Kxg4 52.Kh2 Kf4 53.Rd3 Rd4 54.Rc3 Rc4 55.Rd3 Rd4 56.Rc3 f6 57.Rc7 Nf3+ 58.Kh3 Rd3 59.Rxa7 Rxa3 60.Rd7 Ne1+ 61.Kh2 Ra2 62.Rxd6 Rxg2+ 63.Kh1 Ra2 64.Rxf6+ Kxe4 65.a6 Nf3 66.Rh6 Ke3 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.09"] [EventDate "?"] [Round "3"] [Result "1-0"] [White "Samuel Reshevsky"] [Black "John A Peters"] [ECO "E42"] [WhiteElo "?"] [BlackElo "2462"] [PlyCount "95"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Nge2 cxd4 6.exd4 d5 7.a3 Bxc3+ 8.Nxc3 dxc4 9.Bxc4 O-O 10.O-O Nc6 11.Be3 b6 12.Qd3 Bb7 13.Rad1 Nd5 14.Nxd5 exd5 15.Ba2 Qd6 16.Rfe1 Rfe8 17.Bb1 g6 18.Bd2 Qf6 19.Bc3 Rad8 20.Ba2 Qd6 21.Qb5 Re6 22.Rxe6 Qxe6 23.Re1 Qd7 24.Qe2 Qd6 25.Qf3 b5 26.Qd3 b4 27.Bd2 bxa3 28.bxa3 Qf6 29.Bc3 Qd6 30.Bd2 Qf6 31.Be3 Bc8 32.Qd2 Qd6 33.Bg5 f6 34.Bf4 Qxa3 35.Rc1 Bb7 36.h4 Qe7 37.Rc5 Qe4 38.Be3 Kh8 39.Qc3 Ne7 40.Qa5 Rc8 41.Qxa7 Ra8 42.Qxb7 Rxa2 43.Rc1 Qe6 44.Bh6 Re2 45.Rc7 Re1+ 46.Kh2 Qd6+ 47.g3 Qd8 48.Rd7 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.09"] [EventDate "?"] [Round "3"] [Result "1-0"] [White "Walter Shawn Browne"] [Black "John Alan Grefe"] [ECO "D59"] [WhiteElo "2550"] [BlackElo "2470"] [PlyCount "121"] 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 Nxd5 9.Bxe7 Qxe7 10.Nxd5 exd5 11.Qb3 Be6 12.Rc1 Rc8 13.Bd3 c5 14.Qa3 Kf8 15.b3 a5 16.Ne5 Nd7 17.Nxd7+ Bxd7 18.O-O cxd4 19.Qxe7+ Kxe7 20.exd4 Rxc1 21.Rxc1 Rc8 22.Rxc8 Bxc8 23.Kf1 Bd7 24.a3 Kf6 25.Ke2 Ke7 26.Ke3 b5 27.b4 axb4 28.axb4 g5 29.f4 f6 30.Bg6 Bg4 31.h3 Bd7 32.Kf3 Kf8 33.Kg3 Kg7 34.Bh5 Bc6 35.h4 Bd7 36.Bf3 Be6 37.Be2 Bd7 38.Bh5 Kf8 39.hxg5 hxg5 40.fxg5 fxg5 41.Bf3 Be6 42.Be2 Bd7 43.Bf3 Be6 44.Be2 Bd7 45.Bg4 Bc6 46.Bc8 Kg7 47.Kg4 Kg6 48.g3 Kf6 49.Kh5 Be8+ 50.Kh6 Bc6 51.Kh7 Be8 52.Bg4 Bg6+ 53.Kg8 Bf5 54.Be2 Bd7 55.Kf8 g4 56.Bf1 Bc6 57.Bg2 Bb7 58.Ke8 Ke6 59.Kd8 Kd6 60.Bf1 Bc6 61.Bd3 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.09"] [EventDate "?"] [Round "3"] [Result "1/2-1/2"] [White "Lubomir Kavalek"] [Black "Kim S Commons"] [ECO "A14"] [WhiteElo "2555"] [BlackElo "2415"] [PlyCount "52"] 1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.c4 O-O 6.d4 dxc4 7.Qa4 a6 8.Qxc4 b5 9.Qc2 Bb7 10.Bf4 Bd6 11.Bxd6 cxd6 12.Nbd2 Qb6 13.e4 Nc6 14.Qd3 e5 15.d5 Nb4 16.Qb3 a5 17.Rac1 Nxe4 18.Nxe4 Bxd5 19.Nf6+ gxf6 20.Qd1 Be6 21.Nh4 Rac8 22.Qf3 Kg7 23.Nf5+ Bxf5 24.Qxf5 Rc5 25.Qg4+ Kh8 26.Qf5 Kg7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.09"] [EventDate "?"] [Round "3"] [Result "1-0"] [White "Kenneth S Rogoff"] [Black "Edmar J Mednis"] [ECO "D78"] [WhiteElo "2445"] [BlackElo "2455"] [PlyCount "109"] 1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c6 6.d4 d5 7.Nbd2 Bf5 8.b3 Ne4 9.Bb2 Qa5 10.a3 Nd7 11.Rc1 Ndf6 12.e3 Rfc8 13.Qe2 Qd8 14.Ne5 Nxd2 15.Qxd2 Qb6 16.Qd1 Be6 17.a4 Bf5 18.Ba3 Qd8 19.Re1 h5 20.h3 Bf8 21.Re2 Be6 22.Nd3 Bf5 23.Nf4 Bh6 24.Re1 Qd7 25.Kh2 Kg7 26.Qe2 a6 27.Red1 Bg5 28.a5 Qd8 29.Qe1 Qd7 30.f3 Qd8 31.e4 dxe4 32.fxe4 Bd7 33.e5 Nh7 34.d5 cxd5 35.Rxd5 Qc7 36.Rc5 Bc6 37.Nd5 Qd8 38.Rd1 Qe8 39.h4 Bh6 40.Nb6 Bxg2 41.Rxc8 Rxc8 42.Nxc8 Qxc8 43.Kxg2 Nf8 44.Bxe7 Ne6 45.Qe2 Qc7 46.Bf6+ Kg8 47.Rd5 Bf8 48.Kh2 Qc8 49.Qd2 Qc6 50.Qd1 Qc7 51.Qd3 Nc5 52.Qe3 Qxa5 53.Rd8 Ne6 54.Qh6 Qa2+ 55.Kh3 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.11"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "James Tarjan"] [ECO "A45"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "149"] 1.d4 Nf6 2.Nc3 d5 3.Bg5 Nbd7 4.e3 e6 5.Bd3 c5 6.a3 Be7 7.Nf3 b6 8.Ne5 Nxe5 9.dxe5 Nd7 10.Bxe7 Qxe7 11.f4 O-O 12.O-O f6 13.Qh5 g6 14.exf6 Nxf6 15.Qg5 Bb7 16.Be2 d4 17.exd4 cxd4 18.Nb5 Rad8 19.Nxa7 Ba8 20.Nb5 Rd5 21.Qg3 d3 22.Bxd3 Rxb5 23.Bxb5 Qc5+ 24.Qf2 Qxb5 25.Qd4 Qc6 26.Rf2 Nh5 27.Rd1 Nxf4 28.Kh1 b5 29.Rdd2 e5 30.Qb4 Qe4 31.Qxe4 Bxe4 32.Kg1 Rc8 33.Kf1 g5 34.g3 Ng6 35.c3 g4 36.Rf6 Bf3 37.Kf2 e4 38.Rf5 Rb8 39.Ke3 Ne7 40.Rc5 Rf8 41.Rg5+ Kh8 42.Rxb5 Nf5+ 43.Rxf5 Rxf5 44.c4 Bh1 45.Rf2 Rxf2 46.Kxf2 Kg7 47.a4 Kf6 48.a5 Ke5 49.Ke3 Kd6 50.b4 Kc6 51.b5 Kc5 52.a6 Kb6 53.Kf2 Bf3 54.Ke3 Bg2 55.Kf2 Bh3 56.Ke2 Ka7 57.Kf2 Kb6 58.Ke2 Bg2 59.Kf2 Bf3 60.Ke3 Ka7 61.c5 h6 62.Kd4 h5 63.Ke3 Bd1 64.Kxe4 Ba4 65.b6+ Kxa6 66.Kf5 Kb7 67.Kg5 Be8 68.Kh4 Kc6 69.Kg5 Kb7 70.Kh4 Kb8 71.Kg5 Bf7 72.Kh4 Kc8 73.Kg5 Kd7 74.Kh4 Kc6 75.Kg5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.11"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "Milan Rodoje Vukcevich"] [ECO "E92"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "47"] 1.Nf3 d6 2.d4 Nf6 3.c4 g6 4.Nc3 Bg7 5.e4 O-O 6.Be2 e5 7.dxe5 dxe5 8.Qxd8 Rxd8 9.Bg5 Re8 10.O-O-O Ng4 11.Bh4 c6 12.Ne1 Na6 13.Nc2 h5 14.h3 Nf6 15.Rd6 Nh7 16.Rhd1 Be6 17.Rd8 Rexd8 18.Bxd8 Bf8 19.Bh4 f6 20.f3 Be7 21.Bf2 Nf8 22.a3 Bf7 23.b4 Nc7 24.Kb2 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.11"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Edmar J Mednis"] [Black "Samuel Reshevsky"] [ECO "B44"] [WhiteElo "2510"] [BlackElo "?"] [PlyCount "36"] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nb5 d6 6.c4 a6 7.N5c3 Nf6 8.Be2 Be7 9.O-O O-O 10.Be3 b6 11.Na3 Bb7 12.Re1 Re8 13.Bf1 Ne5 14.Qd4 Ned7 15.f3 Qc7 16.Rac1 Rac8 17.Kh1 Qb8 18.Qd2 d5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.11"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Kim S Commons"] [Black "Robert Eugene Byrne"] [ECO "E66"] [WhiteElo "2415"] [BlackElo "2600"] [PlyCount "115"] 1.c4 Nf6 2.Nf3 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O c5 7.d4 Nc6 8.d5 Na5 9.Nd2 e5 10.b3 Ne8 11.e4 f5 12.exf5 gxf5 13.Bb2 Nf6 14.Qc2 b6 15.Rfe1 Bd7 16.f4 e4 17.Nd1 Rf7 18.Ne3 h5 19.h4 Nh7 20.Kh2 Bd4 21.Bc3 Qf6 22.Nb1 Rg7 23.Bh3 Nf8 24.Qd2 Ng6 25.Nc2 Bxc3 26.Qxc3 Qe7 27.Ne3 Rf8 28.Nd2 Kh7 29.Nxf5 Bxf5 30.Bxf5 Rxf5 31.Nxe4 Kh6 32.Nxc5 Qf7 33.Ne6 Rg8 34.Ng5 Qd7 35.Re6 Nb7 36.Ne4 Rgf8 37.Qb4 Nc5 38.Nxd6 Nxe6 39.Nxf5+ Rxf5 40.dxe6 Qxe6 41.Re1 Qd7 42.Qc3 Nf8 43.b4 Nh7 44.c5 bxc5 45.bxc5 Rxc5 46.Qxc5 Qd2+ 47.Kh3 Qxe1 48.Qd6+ Kg7 49.Qe5+ Qxe5 50.fxe5 Nf8 51.g4 Ng6 52.gxh5 Nxe5 53.Kg3 Nd3 54.Kf3 Nb4 55.a3 Nc2 56.a4 Nd4+ 57.Ke4 Nb3 58.Kd5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.11"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "Kenneth S Rogoff"] [ECO "B17"] [WhiteElo "2550"] [BlackElo "2445"] [PlyCount "59"] 1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Ne5 Be6 8.Be2 g6 9.O-O Bg7 10.c4 O-O 11.Be3 Qc8 12.Bf3 Rd8 13.Qe2 Nd7 14.Ng4 Bxg4 15.Bxg4 Qc7 16.Rad1 Nf6 17.Bf3 e6 18.Rd2 Rd7 19.Rfd1 Rad8 20.g3 a6 21.b3 Bf8 22.Bf4 Qa5 23.h4 h5 24.Bg5 Qf5 25.Rd3 Be7 26.Kg2 Ng4 27.Bxe7 Rxe7 28.d5 cxd5 29.Rxd5 Rxd5 30.cxd5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.11"] [EventDate "?"] [Round "4"] [Result "1-0"] [White "John Alan Grefe"] [Black "William James Lombardy"] [ECO "B42"] [WhiteElo "2470"] [BlackElo "2520"] [PlyCount "72"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6 6.O-O Bg7 7.Nf3 Nc6 8.Nbd2 Nge7 9.Qe2 Qc7 10.Re1 d6 11.c3 O-O 12.a4 Na5 13.Ra3 Bd7 14.b4 Nac6 15.a5 f5 16.Bb1 Rae8 17.Ba2 h6 18.exf5 Nxf5 19.Nc4 Nd8 20.Nb6 Bc6 21.c4 Kh7 22.Bb1 Nf7 23.Rd1 Qe7 24.b5 Bxf3 25.Rxf3 Qc7 26.Rh3 axb5 27.cxb5 d5 28.Ba3 Rg8 29.Qd2 h5 30.Bxf5 exf5 31.Nxd5 Qc4 32.Be7 Ne5 33.Rc1 Qxb5 34.Nc7 Bh6 35.Bg5 Bxg5 36.Qxg5 Qxa5 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.11"] [EventDate "?"] [Round "4"] [Result "1-0"] [White "John A Peters"] [Black "Lubomir Kavalek"] [ECO "B83"] [WhiteElo "2335"] [BlackElo "2555"] [PlyCount "81"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 Nc6 7.O-O Be7 8.Be3 O-O 9.f4 e5 10.Nb3 a5 11.a3 a4 12.Nc1 exf4 13.Rxf4 Be6 14.Nd5 Bxd5 15.exd5 Ne5 16.Rb4 Qc8 17.Na2 Nfd7 18.c4 Bd8 19.Kh1 Re8 20.Bd4 Nc5 21.Bxc5 Qxc5 22.Nc3 Ba5 23.Ne4 Qc7 24.Rxa4 Nd7 25.c5 Nxc5 26.Nxc5 dxc5 27.Bb5 Red8 28.b4 Bb6 29.Rxa8 Rxa8 30.d6 Qd8 31.bxc5 Bxc5 32.d7 Qe7 33.a4 Rd8 34.Qd5 b6 35.Rf1 Qe6 36.Qxe6 fxe6 37.Bc4 h6 38.Bxe6+ Kh7 39.g3 Be7 40.Rc1 Kg6 41.Rc6 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.12"] [EventDate "?"] [Round "5"] [Result "1/2-1/2"] [White "Milan Rodoje Vukcevich"] [Black "Arthur Bisguier"] [ECO "B00"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "81"] 1.e4 Nc6 2.Nf3 d6 3.d4 Nf6 4.Nc3 Bg4 5.Bg5 g6 6.d5 Nb8 7.h3 Bxf3 8.Qxf3 Bg7 9.Be2 Nbd7 10.O-O O-O 11.a4 a5 12.Qe3 c6 13.Ra3 cxd5 14.exd5 Nc5 15.Rd1 Re8 16.Bb5 Nfd7 17.Ne4 Nxe4 18.Qxe4 Bxb2 19.Re3 Bf6 20.Bxf6 Nxf6 21.Qd4 Nd7 22.Rde1 Rc8 23.Qh4 e5 24.Qh6 Re7 25.c4 f5 26.f4 e4 27.g4 Rg7 28.Rg3 Nc5 29.gxf5 Qf6 30.fxg6 Rxg6 31.Rxg6+ Qxg6+ 32.Qxg6+ hxg6 33.Kg2 Kf7 34.Kg3 Kf6 35.Kg4 Rc7 36.Re2 Rh7 37.h4 Rh5 38.Rf2 Nd3 39.Rf1 Rh7 40.c5 dxc5 41.d6 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.12"] [EventDate "?"] [Round "5"] [Result "1/2-1/2"] [White "Samuel Reshevsky"] [Black "Walter Shawn Browne"] [ECO "E68"] [WhiteElo "?"] [BlackElo "2590"] [PlyCount "51"] 1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.d4 Nbd7 7.Nc3 e5 8.h3 Re8 9.e4 exd4 10.Nxd4 Nc5 11.Re1 a5 12.Qc2 a4 13.Be3 c6 14.Rad1 Nfd7 15.f4 Qa5 16.Bf2 Nb6 17.Bf1 Ne6 18.Qd2 Nxd4 19.Bxd4 Bxd4+ 20.Qxd4 Be6 21.f5 gxf5 22.exf5 Bxf5 23.Qxd6 Bg6 24.a3 Qg5 25.h4 Qg4 26.Rd4 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.12"] [EventDate "?"] [Round "5"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "John A Peters"] [ECO "B81"] [WhiteElo "2600"] [BlackElo "2335"] [PlyCount "82"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 a6 7.g5 Nfd7 8.Bg2 Nc6 9.f4 Qb6 10.Nb3 h6 11.Qe2 hxg5 12.Be3 Qc7 13.fxg5 Nce5 14.O-O-O b5 15.a3 Nb6 16.h4 Nbc4 17.Bd4 Bd7 18.Nd2 Na5 19.Rh3 Rb8 20.Bf2 Be7 21.Na2 Nac6 22.Nf3 a5 23.Nxe5 Nxe5 24.Rc3 Qb7 25.Bg3 b4 26.axb4 axb4 27.Nxb4 Ba4 28.Rd4 Nc6 29.Nxc6 Qxb2+ 30.Kd2 Bxc6 31.Qa6 Bd7 32.Bxd6 Rxh4 33.Bxe7 Rh2 34.Qf1 Rb3 35.Rcd3 Rxd3+ 36.Rxd3 Kxe7 37.Rxd7+ Kxd7 38.Qxf7+ Kd8 39.Qf8+ Kd7 40.Qf7+ Kd6 41.Qf8+ Kd7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.12"] [EventDate "?"] [Round "5"] [Result "1/2-1/2"] [White "Lubomir Kavalek"] [Black "Edmar J Mednis"] [ECO "B68"] [WhiteElo "2555"] [BlackElo "2455"] [PlyCount "120"] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 Be7 10.Be2 h6 11.Bh4 Qc7 12.Nf3 O-O-O 13.Kb1 Kb8 14.Bxf6 gxf6 15.f5 Ne5 16.Nd4 h5 17.Rhe1 Rdg8 18.Bf1 h4 19.Re3 Bf8 20.Qe1 Bh6 21.Rh3 Bg5 22.Nce2 Rc8 23.Nc1 Ka8 24.Ra3 Qb6 25.Rb3 Qc5 26.Rb4 Bxc1 27.Kxc1 exf5 28.Rb3 fxe4 29.Qxe4 d5 30.Qf4 Qd6 31.Kb1 Nc4 32.Qf2 Ne5 33.h3 Rc7 34.Re3 Qb6 35.Qf4 Ba4 36.Ra3 Bd7 37.Be2 Bc8 38.Bf3 Rc5 39.Be2 Bd7 40.Rf1 Nc4 41.Rb3 Qc7 42.Rd3 Qb6 43.Nb3 Re8 44.Bf3 Re5 45.Qd4 Bf5 46.Rc3 Rb5 47.Qxb6 Rxb6 48.Bxd5 Rxb3 49.Bxc4 Rxc3 50.bxc3 Be4 51.Rf4 Bxg2 52.Rxh4 Re3 53.Rh8+ Ka7 54.h4 Be4 55.Bxf7 Rxc3 56.Bb3 Rh3 57.h5 f5 58.h6 f4 59.Re8 Bc6 60.Re6 f3 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.12"] [EventDate "?"] [Round "5"] [Result "1/2-1/2"] [White "William James Lombardy"] [Black "Pal Benko"] [ECO "A15"] [WhiteElo "2520"] [BlackElo "2515"] [PlyCount "30"] 1.Nf3 Nf6 2.c4 c5 3.Nc3 g6 4.g3 b6 5.Bg2 Bb7 6.O-O Bg7 7.b3 d5 8.Bb2 O-O 9.Nxd5 Nxd5 10.Bxg7 Kxg7 11.cxd5 Qxd5 12.d4 cxd4 13.Qxd4+ Qxd4 14.Nxd4 Bxg2 15.Kxg2 Rc8 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.12"] [EventDate "?"] [Round "5"] [Result "1-0"] [White "Kenneth S Rogoff"] [Black "John Alan Grefe"] [ECO "E69"] [WhiteElo "2445"] [BlackElo "2470"] [PlyCount "65"] 1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.d4 c6 7.Nc3 Nbd7 8.e4 e5 9.Rb1 Re8 10.h3 exd4 11.Nxd4 Nc5 12.Re1 a5 13.Bf4 Nh5 14.Be3 Nf6 15.Qc2 Qe7 16.Rbd1 Bd7 17.Bf4 Rad8 18.Nb3 Bc8 19.Nxa5 d5 20.cxd5 cxd5 21.e5 Bf5 22.Qc1 Nd3 23.Rxd3 Bxd3 24.Rd1 Be4 25.exf6 Bxf6 26.Bxe4 Bxc3 27.Qxc3 Qxe4 28.Qd4 Qxd4 29.Rxd4 Rd7 30.Bd2 f6 31.Nb3 b6 32.Rb4 Rb8 33.Be3 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.12"] [EventDate "?"] [Round "5"] [Result "1-0"] [White "James Tarjan"] [Black "Kim S Commons"] [ECO "B43"] [WhiteElo "2480"] [BlackElo "2415"] [PlyCount "79"] 1.e4 e6 2.d4 c5 3.Nf3 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Bb4 7.Bd2 Nf6 8.Bg2 Be7 9.g4 d6 10.g5 Nfd7 11.f4 Nc6 12.Nxc6 bxc6 13.O-O d5 14.Be3 O-O 15.Qe2 a5 16.Rf3 f5 17.exd5 Ba6 18.Qd1 Rfd8 19.dxc6 Ne5 20.Qe1 Nxf3+ 21.Bxf3 Rab8 22.b3 Rb4 23.Qg3 Bd6 24.Rd1 Bxf4 25.Rxd8+ Qxd8 26.Bxf4 Qd4+ 27.Kg2 Qxc3 28.Be5 Qxc2+ 29.Qf2 Qc1 30.c7 Rb5 31.Qg3 Rxb3 32.c8=Q+ Qxc8 33.axb3 Qc2+ 34.Qf2 Qxb3 35.Qa7 Qc2+ 36.Kh3 Bf1+ 37.Kh4 Qf2+ 38.Qxf2 h6 39.Qa2 hxg5+ 40.Kxg5 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.15"] [EventDate "?"] [Round "6"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "William James Lombardy"] [ECO "B31"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "50"] 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 Nf6 6.e5 Nd5 7.Nc3 Nxc3 8.dxc3 O-O 9.Qd5 b6 10.Bxc6 dxc6 11.Qxc6 Bf5 12.Qa4 Qd5 13.Qh4 f6 14.c4 Qf7 15.b3 Bxc2 16.Bh6 g5 17.Qh3 Bxh6 18.Qxh6 Qg6 19.Qxg6+ Bxg6 20.exf6 exf6 21.h4 h6 22.hxg5 hxg5 23.Rad1 Rae8 24.Rxe8 Bxe8 25.Nh2 Bh5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.15"] [EventDate "?"] [Round "6"] [Result "1-0"] [White "John A Peters"] [Black "James Tarjan"] [ECO "B51"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "61"] 1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.Nc3 a6 6.Bxd7+ Nxd7 7.O-O e6 8.Bg5 Qc7 9.Re1 f6 10.Bf4 cxd4 11.Nxd4 Ne5 12.Bg3 g5 13.h4 h6 14.a4 b6 15.Nce2 Rg8 16.Ra3 Qd7 17.Rb3 Rb8 18.f4 gxf4 19.Nxf4 Qf7 20.Bf2 Ng4 21.Nc6 Nxf2 22.Kxf2 Rb7 23.Qe2 Qg7 24.Qh5+ Kd7 25.Nd4 Rc7 26.Ndxe6 Rxc2+ 27.Re2 Rxe2+ 28.Kxe2 Qh7 29.Rc3 Qxe4+ 30.Kd1 Qxa4+ 31.b3 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.15"] [EventDate "?"] [Round "6"] [Result "1/2-1/2"] [White "Kim S Commons"] [Black "Milan Rodoje Vukcevich"] [ECO "E75"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "41"] 1.c4 g6 2.Nc3 Bg7 3.d4 c5 4.d5 d6 5.e4 Nf6 6.Be2 O-O 7.Bg5 h6 8.Bf4 e6 9.dxe6 Bxe6 10.Bxd6 Re8 11.Nf3 Qa5 12.O-O Rd8 13.e5 Ne8 14.Qb3 Nxd6 15.exd6 Qb4 16.Qxb4 cxb4 17.Nb5 Nc6 18.Nc7 Rac8 19.Nxe6 fxe6 20.c5 Na5 21.Rad1 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.15"] [EventDate "?"] [Round "6"] [Result "1/2-1/2"] [White "Kenneth S Rogoff"] [Black "Samuel Reshevsky"] [ECO "A15"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "42"] 1.Nf3 Nf6 2.c4 b6 3.g3 Bb7 4.Bg2 c5 5.O-O g6 6.d3 Bg7 7.e4 d6 8.Nc3 O-O 9.h3 Nc6 10.Be3 e5 11.Rb1 Nd4 12.b4 Rb8 13.bxc5 Nxf3+ 14.Bxf3 dxc5 15.Bg2 Qd7 16.a4 Rfd8 17.Qb3 Ne8 18.a5 Bc6 19.Nd5 Bxd5 20.cxd5 Nd6 21.axb6 axb6 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.15"] [EventDate "?"] [Round "6"] [Result "0-1"] [White "Edmar J Mednis"] [Black "Robert Eugene Byrne"] [ECO "C91"] [WhiteElo "2455"] [BlackElo "2600"] [PlyCount "120"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.d4 Bg4 10.d5 Na5 11.Bc2 c6 12.dxc6 Qc7 13.Nbd2 Qxc6 14.Nf1 Rfe8 15.h3 Be6 16.Ng5 Bd7 17.Ng3 g6 18.Nf3 Bf8 19.Nh2 Bg7 20.Qf3 h5 21.Qe2 Be6 22.Nf3 Nh7 23.Ng5 Nxg5 24.Bxg5 Nc4 25.Bd3 Nb6 26.Qf3 f6 27.Be3 Na4 28.Qe2 Bf7 29.a3 Rad8 30.Rad1 Nc5 31.Bxc5 dxc5 32.Nf1 c4 33.Bc2 Bh6 34.Ne3 Qc5 35.Qf3 Kg7 36.Qg3 Bf4 37.Qf3 a5 38.Nd5 Bg5 39.Ne3 b4 40.axb4 axb4 41.Qe2 b3 42.Bb1 Bxe3 43.fxe3 h4 44.Rf1 Rxd1 45.Rxd1 Be6 46.Kf2 Qc7 47.Ke1 Rd8 48.Rd2 Rxd2 49.Kxd2 Kf7 50.Kc1 Qd8 51.Qf1 Qh8 52.Kd2 Qh5 53.Ke1 Qg5 54.Kf2 Qg3+ 55.Ke2 g5 56.Kd2 Kg6 57.Ke2 Qh2 58.Kd1 g4 59.hxg4 Bxg4+ 60.Kc1 Kg5 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.15"] [EventDate "?"] [Round "6"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "Lubomir Kavalek"] [ECO "B81"] [WhiteElo "2550"] [BlackElo "2555"] [PlyCount "211"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 h6 7.g5 hxg5 8.Bxg5 Nc6 9.Qd2 Qb6 10.Nb3 Ne5 11.Be2 Bd7 12.O-O-O Rh3 13.Be3 Rxe3 14.fxe3 g6 15.Qd4 Bh6 16.Qxb6 axb6 17.Rxd6 Bc6 18.Kd2 Nxe4+ 19.Nxe4 Bxe4 20.Ra1 Nc6 21.Bd3 Bd5 22.c4 Bg2 23.Rg1 Ke7 24.Rxe6+ Kxe6 25.Rxg2 Bg7 26.Nd4+ Nxd4 27.exd4 Bxd4 28.Be4 Bxb2 29.Bd5+ Ke7 30.Re2+ Kf8 31.Kd1 Rxa2 32.c5 Ra1+ 33.Kc2 Bd4 34.cxb6 Bxb6 35.Bxb7 Ra4 36.Bg2 Bc7 37.h3 Ra3 38.Kd1 Ra1+ 39.Kd2 Bf4+ 40.Kd3 Ra3+ 41.Ke4 Bg5 42.Re1 Rg3 43.Bf1 Kg7 44.Rd1 f5+ 45.Ke5 Re3+ 46.Kd4 Rf3 47.Bg2 Bf6+ 48.Kc4 Rc3+ 49.Kd5 Re3 50.Bf1 Kf7 51.Rd3 Re4 52.Rf3 Rd4+ 53.Kc5 Be5 54.Rd3 Rf4 55.Be2 Kf6 56.Kd5 Rf2 57.Bd1 Rh2 58.Bb3 Bf4 59.Bc4 Rg2 60.Rf3 Bg3 61.Bf1 Rd2+ 62.Bd3 f4 63.Ke4 Rh2 64.Bf1 Kg5 65.Rb3 Rh1 66.Rf3 Kf6 67.Bg2 Re1+ 68.Kd3 Kg5 69.Kd2 Ra1 70.Ke2 Ra2+ 71.Kf1 Ra1+ 72.Ke2 Re1+ 73.Kd2 Rg1 74.Bf1 Rh1 75.Kd3 Kh4 76.Ke4 Rxh3 77.Bxh3 Kxh3 78.Ra3 Kg4 79.Ra6 g5 80.Rg6 Bf2 81.Rg8 Bc5 82.Rg7 Ba3 83.Rg8 Bc1 84.Rc8 Be3 85.Rg8 Bd2 86.Rd8 Be1 87.Rg8 Bh4 88.Rf8 Be1 89.Rg8 Bb4 90.Rb8 Be7 91.Re8 Bf6 92.Re6 Bc3 93.Rc6 Bd2 94.Rc2 Be1 95.Rc5 Kh4 96.Kf3 Bd2 97.Rf5 Be3 98.Rf8 g4+ 99.Kg2 Kg5 100.Rg8+ Kf5 101.Rf8+ Ke4 102.Re8+ Kd3 103.Rg8 Ke2 104.Rxg4 f3+ 105.Kh3 f2 106.Rg2 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.15"] [EventDate "?"] [Round "6"] [Result "1-0"] [White "John Alan Grefe"] [Black "Pal Benko"] [ECO "B84"] [WhiteElo "2470"] [BlackElo "2515"] [PlyCount "47"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.O-O Qc7 8.f4 Be7 9.a4 Nc6 10.Be3 O-O 11.Kh1 Bd7 12.Nb3 b6 13.Bf3 Rfd8 14.g4 Be8 15.g5 Nd7 16.Bg2 Nc5 17.Rf3 Rab8 18.Rh3 g6 19.Qg4 b5 20.axb5 axb5 21.Qh4 h5 22.Bf3 Bf8 23.f5 Nxb3 24.f6 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.16"] [EventDate "?"] [Round "7"] [Result "1-0"] [White "James Tarjan"] [Black "Edmar J Mednis"] [ECO "B89"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "79"] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3 a6 8.Qe2 Qc7 9.O-O-O Be7 10.Bb3 O-O 11.Rhg1 Na5 12.g4 b5 13.g5 Nd7 14.Bd5 Nb6 15.Bxa8 Nxa8 16.f4 b4 17.Nb1 Re8 18.Nd2 Nb6 19.f5 g6 20.fxe6 fxe6 21.h4 Nbc4 22.h5 e5 23.hxg6 hxg6 24.Rh1 Bf8 25.Nxc4 Nxc4 26.Nb3 Bg4 27.Qh2 Bh5 28.Rd3 Rc8 29.Bg1 Qc6 30.Qg2 Be7 31.Rdh3 a5 32.Rxh5 gxh5 33.Rxh5 Rf8 34.Nd2 Nxd2 35.Kxd2 Qc4 36.Qh1 Kf7 37.g6+ Ke8 38.g7 Rg8 39.Rh8 Bg5+ 40.Ke1 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.16"] [EventDate "?"] [Round "7"] [Result "1-0"] [White "Milan Rodoje Vukcevich"] [Black "John A Peters"] [ECO "B40"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "45"] 1.e4 c5 2.Nf3 e6 3.b3 d6 4.Bb2 Nf6 5.e5 dxe5 6.Nxe5 Nbd7 7.f4 Nxe5 8.fxe5 Nd7 9.Bd3 g6 10.Na3 a6 11.O-O Nb6 12.Qf3 Qe7 13.Be4 Rb8 14.d4 Bg7 15.Qf2 O-O 16.dxc5 Nd7 17.Nc4 Nxc5 18.Ba3 b6 19.Bf3 Re8 20.Nxb6 Nd3 21.Bxe7 Nxf2 22.Bc5 Bxe5 23.Rae1 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.16"] [EventDate "?"] [Round "7"] [Result "1-0"] [White "Samuel Reshevsky"] [Black "John Alan Grefe"] [ECO "A89"] [WhiteElo "?"] [BlackElo "2400"] [PlyCount "75"] 1.Nf3 d6 2.d4 f5 3.g3 Nf6 4.Bg2 g6 5.O-O Bg7 6.c4 O-O 7.Nc3 Nc6 8.d5 Na5 9.Nd2 c5 10.Qc2 a6 11.b3 Rb8 12.Bb2 b5 13.Rab1 Bd7 14.e3 Qc7 15.Ne2 Rb6 16.Bc3 Nb7 17.Nf4 Rb8 18.Rfe1 Ng4 19.Bxg7 Kxg7 20.e4 Nd8 21.exf5 Bxf5 22.Be4 Bxe4 23.Nxe4 Ne5 24.Ng5 Qc8 25.Nfe6+ Nxe6 26.Nxe6+ Kf7 27.Qc3 Qh8 28.cxb5 axb5 29.f4 Ng4 30.Ng5+ Kg8 31.Qf3 Qd4+ 32.Kg2 Nf6 33.Rbd1 Qb2+ 34.Re2 Qa3 35.Qe3 Qa8 36.Qe6+ Kh8 37.Qxe7 Rf8 38.Ne6 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.16"] [EventDate "1975.??.??"] [Round "7"] [Result "0-1"] [White "Robert Eugene Byrne"] [Black "Walter Shawn Browne"] [ECO "B90"] [WhiteElo "2560"] [BlackElo "2590"] [PlyCount "60"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.Be2 Nbd7 8.g4 h6 9.f4 b5 10.g5 hxg5 11.fxg5 Rh3 12.Bf4 b4 13.Nd5 exd5 14.gxf6 Nxf6 15.Nc6 Qb6 16.exd5 Ne4 17.Qd4 Qxd4 18.Nxd4 g5 19.Bc1 Bg7 20.Nc6 Ng3 21.Rg1 Nxe2 22.Rxg5 Nd4 23.Rxg7 Nxc2+ 24.Kd1 Nxa1 25.Rg8+ Kd7 26.Rf8 Rd3+ 27.Bd2 Rxd5 28.Nxb4 Rf5 29.Bc3 a5 30.Nd3 a4 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.16"] [EventDate "?"] [Round "7"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "Arthur Bisguier"] [ECO "A28"] [WhiteElo "2515"] [BlackElo "2445"] [PlyCount "18"] 1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.d3 Bb4 5.Bd2 O-O 6.e3 d6 7.Be2 Bf5 8.O-O a5 9.Qb3 Nd7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.16"] [EventDate "?"] [Round "7"] [Result "0-1"] [White "Lubomir Kavalek"] [Black "Kenneth S Rogoff"] [ECO "B13"] [WhiteElo "2555"] [BlackElo "2445"] [PlyCount "112"] 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Nf3 Bg4 7.cxd5 Nxd5 8.Qb3 Bxf3 9.gxf3 e6 10.Qxb7 Nxd4 11.Bb5+ Nxb5 12.Qc6+ Ke7 13.Qxb5 Qd7 14.Nxd5+ Qxd5 15.Qxd5 exd5 16.Be3 Ke6 17.O-O-O Rc8+ 18.Kb1 Bc5 19.Rhe1 Kd6 20.Rd3 Rhd8 21.a3 h6 22.h4 h5 23.Rg1 g6 24.Bg5 Re8 25.Rgd1 Bxf2 26.Rxd5+ Kc6 27.R5d2 Re1 28.Rxe1 Bxe1 29.Re2 Ba5 30.f4 Bb6 31.f5 gxf5 32.Re5 f6 33.Re6+ Kd5 34.Rxf6 Ke4 35.Rf7 Rc7 36.Rf8 Bc5 37.Rf6 Bd4 38.Rf8 Bg7 39.Re8+ Kf3 40.Re1 Bd4 41.b4 Kg4 42.Rd1 Bf2 43.Rd5 Rf7 44.Kc2 f4 45.Kd1 f3 46.a4 Bg3 47.Rd4+ Kh3 48.Be3 f2 49.Bxf2 Bxf2 50.Re4 Bxh4 51.a5 Bf2 52.b5 h4 53.Ke2 Kg2 54.b6 axb6 55.axb6 h3 56.Rg4+ Bg3 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.16"] [EventDate "?"] [Round "7"] [Result "1-0"] [White "William James Lombardy"] [Black "Kim S Commons"] [ECO "D41"] [WhiteElo "2520"] [BlackElo "2415"] [PlyCount "93"] 1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 c5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.cxd4 Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 O-O 11.Bc4 Nc6 12.O-O Qd6 13.a3 Rd8 14.Rfd1 Bd7 15.h3 Rac8 16.Bf1 Rc7 17.Qe3 Ne7 18.a4 Rdc8 19.Ne5 Be8 20.Qb3 Ng6 21.Nc4 Qf4 22.g3 Qf6 23.e5 Qd8 24.Nd6 Rb8 25.Bb5 Bc6 26.Bxc6 Rxc6 27.Rac1 Qc7 28.Qa3 Ne7 29.Rxc6 bxc6 30.Rc1 Qb6 31.Qf3 f6 32.exf6 Qxd4 33.Ne4 gxf6 34.Nxf6+ Kh8 35.Rd1 Qb2 36.Nd7 Rd8 37.Qf7 Qg7 38.Qxe6 Ng6 39.Rd6 Nf4 40.Qf5 Nd5 41.Ne5 Rxd6 42.Nf7+ Kg8 43.Nxd6 Ne7 44.Qe6+ Kf8 45.Qd7 Kg8 46.Qxa7 Qe5 47.Qb8+ 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.18"] [EventDate "?"] [Round "8"] [Result "1-0"] [White "John A Peters"] [Black "William James Lombardy"] [ECO "C96"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "56"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c6 11.d4 Qc7 12.Nbd2 h6 13.b3 Re8 14.Bb2 Bf8 15.Bd3 c5 16.Nf1 d5 17.dxe5 dxe4 18.exf6 Bb7 19.fxg7 Bxg7 20.Bc2 exf3 21.Qd3 Nc6 22.Ng3 Re6 23.Qf5 Ne7 24.Qg4 fxg2 25.Be4 Nd5 26.Qf3 Rd8 27.Rad1 Qd6 28.Re2 c4 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.18"] [EventDate "?"] [Round "8"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "James Tarjan"] [ECO "B78"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "70"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 O-O 9.Bc4 Bd7 10.O-O-O Ne5 11.Bb3 Rc8 12.h4 Nc4 13.Bxc4 Rxc4 14.h5 Nxh5 15.g4 Nf6 16.Nde2 Re8 17.Bh6 Bh8 18.e5 Nxg4 19.fxg4 Bxg4 20.exd6 Qxd6 21.Qxd6 exd6 22.Rxd6 Bg7 23.Bxg7 Kxg7 24.Nd4 h5 25.Kd2 Rcc8 26.Nd1 Rcd8 27.Rxd8 Rxd8 28.Ke3 Re8+ 29.Kf2 Bd7 30.Ne3 Re4 31.c3 f5 32.Nc4 Rf4+ 33.Ke3 Re4+ 34.Kf2 Rf4+ 35.Ke3 Re4+ 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.18"] [EventDate "?"] [Round "8"] [Result "1-0"] [White "Edmar J Mednis"] [Black "Milan Rodoje Vukcevich"] [ECO "C85"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "203"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6 dxc6 7.d3 Nd7 8.Nbd2 O-O 9.Nc4 f6 10.Nh4 Nc5 11.Nf5 Bxf5 12.exf5 Re8 13.b3 Bf8 14.Bb2 Qd5 15.Qg4 Qf7 16.Rfe1 a5 17.a4 b6 18.Re3 Na6 19.Rh3 Nb4 20.Qh4 h6 21.Ne3 Nd5 22.Nxd5 Qxd5 23.Qg4 Kh8 24.Re1 Rad8 25.Re4 Qf7 26.Qf3 Qd5 27.Rhh4 Rd7 28.Qe2 Red8 29.Rhg4 Qf7 30.Rg6 b5 31.Bc3 Ra8 32.h3 Bb4 33.Bxb4 axb4 34.axb5 c5 35.Reg4 Qf8 36.Qf3 Ra1+ 37.Kh2 Qa8 38.Qg3 Qf8 39.Qf3 Qa8 40.Qe3 Qf8 41.Qe4 Qd6 42.Qc6 Ra5 43.Rc4 Qxc6 44.bxc6 Rd4 45.Rg4 Kg8 46.Kg3 Kf7 47.Kf3 Rd6 48.Rg6 Rd4 49.Rg4 Rd6 50.Ke3 Rb5 51.Rge4 Rxc6 52.f4 exf4+ 53.Kxf4 Rd6 54.d4 Rd5 55.g4 g6 56.fxg6+ Kxg6 57.Re7 h5 58.dxc5 c6 59.Re6 Rdxc5 60.Rxc6 Rd5 61.Re6 hxg4 62.hxg4 Rd1 63.Ree4 Rd2 64.Ke3 Rg2 65.Kd3 Rd5+ 66.Red4 Re5 67.Re4 Rd5+ 68.Red4 Re5 69.Rxb4 Ree2 70.c3 Rd2+ 71.Kc4 Rc2 72.Rd3 Rxg4+ 73.Kb5 Rg5+ 74.Kb6 Re2 75.Rb5 Re6+ 76.Ka5 Rg1 77.c4 Ra1+ 78.Kb4 Ra7 79.Rg3+ Kf7 80.Rh5 Rb6+ 81.Kc5 Raa6 82.Rh7+ Ke6 83.Rc7 Kf5 84.b4 Re6 85.b5 Re5+ 86.Kb4 Ra1 87.Rf3+ Ke4 88.Rxf6 Rb1+ 89.Ka5 Kd4 90.Kb6 Re8 91.Kb7 Kc3 92.b6 Kb4 93.Rf5 Rc1 94.c5 Ra1 95.Kc6 Rd1 96.Rf4+ Kc3 97.Rd7 Ra1 98.Kc7 Re5 99.c6 Rb5 100.b7 Rab1 101.Rf8 Kc4 102.b8=Q 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.18"] [EventDate "?"] [Round "8"] [Result "1/2-1/2"] [White "Samuel Reshevsky"] [Black "Lubomir Kavalek"] [ECO "D74"] [WhiteElo "?"] [BlackElo "2600"] [PlyCount "25"] 1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.cxd5 Nxd5 7.d4 Nc6 8.Nc3 Nb6 9.e3 e5 10.Nxe5 Nxe5 11.dxe5 Bxe5 12.Qe2 Re8 13.Rd1 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.18"] [EventDate "?"] [Round "8"] [Result "1/2-1/2"] [White "Kenneth S Rogoff"] [Black "Robert Eugene Byrne"] [ECO "E12"] [WhiteElo "2445"] [BlackElo "2600"] [PlyCount "55"] 1.Nf3 Nf6 2.c4 e6 3.d4 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 g5 7.Bg3 Nh5 8.e3 Nxg3 9.hxg3 Bg7 10.Bd3 Nc6 11.g4 Qe7 12.Qe2 O-O-O 13.O-O-O Rhf8 14.a3 f5 15.gxf5 exf5 16.Kb1 Kb8 17.Rc1 Qf7 18.c5 f4 19.Qc2 fxe3 20.fxe3 bxc5 21.dxc5 Qe6 22.Rhe1 Rde8 23.Qa4 g4 24.Nd4 Nxd4 25.exd4 Qc6 26.Rxe8+ Rxe8 27.Bb5 Qg6+ 28.Ka1 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.18"] [EventDate "?"] [Round "8"] [Result "1-0"] [White "Kim S Commons"] [Black "Pal Benko"] [ECO "B23"] [WhiteElo "2415"] [BlackElo "2515"] [PlyCount "73"] 1.e4 c5 2.Nc3 d6 3.Nf3 a6 4.d4 cxd4 5.Nxd4 e6 6.f4 Nf6 7.Bd3 Nc6 8.Nxc6 bxc6 9.O-O Be7 10.Qe2 e5 11.fxe5 dxe5 12.Bc4 O-O 13.h3 Ne8 14.Be3 Nd6 15.Rad1 Qc7 16.Bd3 Nb5 17.Na4 Nd4 18.Qf2 Be6 19.Qg3 Bd6 20.c3 f5 21.cxd4 f4 22.Bxf4 exf4 23.Qh4 Be7 24.Qh5 Bxa2 25.e5 g6 26.Qe2 Bd5 27.Nc3 Qb6 28.Bc4 Bxc4 29.Qxc4+ Kh8 30.Kh1 Rad8 31.Qe6 Qxb2 32.Qxe7 Qxc3 33.Rxf4 Rxf4 34.Qxd8+ Kg7 35.e6 Qe3 36.e7 Re4 37.Qf8# 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.18"] [EventDate "?"] [Round "8"] [Result "1/2-1/2"] [White "John Alan Grefe"] [Black "Arthur Bisguier"] [ECO "C69"] [WhiteElo "2470"] [BlackElo "2445"] [PlyCount "40"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.d3 f6 7.Be3 c5 8.Nbd2 Be6 9.a3 Qd7 10.Qe2 Rd8 11.Rfd1 Bd6 12.c3 Ne7 13.d4 cxd4 14.cxd4 Qb5 15.Qxb5+ axb5 16.Rac1 c6 17.dxe5 fxe5 18.Bc5 Bc7 19.Nf1 Rxd1 20.Rxd1 Bg4 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.19"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "James Tarjan"] [Black "Kenneth S Rogoff"] [ECO "B17"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "76"] 1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6 8.Bd3 h6 9.N5f3 c5 10.dxc5 Bxc5 11.Ne5 Nbd7 12.Ngf3 Nxe5 13.Nxe5 O-O 14.Bd2 Qd5 15.f4 b5 16.Be3 Bxe3 17.Qxe3 Bb7 18.Rg1 Rfd8 19.g4 Ne4 20.Rd1 b4 21.Ke2 Kf8 22.Bc4 Qc5 23.Qxc5+ Nxc5 24.g5 Be4 25.gxh6 gxh6 26.Nd3 Rd4 27.Nxc5 Rxc4 28.Nxe4 Rxe4+ 29.Kf3 Rc4 30.Rd2 Rac8 31.Rc1 R8c5 32.Ke3 Ke7 33.Rf2 Ra5 34.Kd3 Rc6 35.c4 bxc3 36.bxc3 Rd5+ 37.Ke3 Rcd6 38.Rcc2 Rd3+ 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.19"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "Milan Rodoje Vukcevich"] [Black "Walter Shawn Browne"] [ECO "B84"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "78"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Nbd7 8.f4 b5 9.Bf3 Bb7 10.a3 Rc8 11.Qe2 e5 12.Nf5 g6 13.fxe5 Nxe5 14.Nh6 Nfd7 15.Bg4 Nxg4 16.Qxg4 Ne5 17.Qg3 Be7 18.Bf4 f6 19.Rad1 Qb6+ 20.Kh1 Rf8 21.Qh3 Qc7 22.Bxe5 dxe5 23.Ng4 Rf7 24.Nxe5 Qxe5 25.Qd7+ Kf8 26.Qxb7 Qe6 27.Rd7 Qc6 28.Rf3 a5 29.h3 b4 30.axb4 Qxb7 31.Rxb7 Bxb4 32.Rxf7+ Kxf7 33.Nd5 Rxc2 34.Rxf6+ Kg7 35.b3 Re2 36.Rb6 Rxe4 37.Rb7+ Kf8 38.g4 h5 39.gxh5 gxh5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.19"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "Samuel Reshevsky"] [ECO "C42"] [WhiteElo "2560"] [BlackElo "?"] [PlyCount "120"] 1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O O-O 8.Re1 Nd6 9.Bf4 Bg4 10.Nbd2 Nd7 11.c3 Bh5 12.Qb3 Nb6 13.Ne5 Re8 14.Qc2 Bg6 15.Nxg6 hxg6 16.Nf3 Bf6 17.Rxe8+ Qxe8 18.Re1 Qd7 19.Ne5 Bxe5 20.Rxe5 Re8 21.b3 Rxe5 22.Bxe5 Qe6 23.f3 c5 24.Qe2 c4 25.Bxd6 Qxd6 26.bxc4 dxc4 27.Bxc4 Qc6 28.Bb3 Qxc3 29.Qe8+ Kh7 30.Bxf7 Qxd4+ 31.Kf1 Qd3+ 32.Kf2 Qd2+ 33.Qe2 Qf4 34.Qe6 Qd2+ 35.Kg3 Qg5+ 36.Qg4 Kh6 37.h4 Qxg4+ 38.Kxg4 Na4 39.Kf4 Kh5 40.g3 Nc3 41.Ke3 b5 42.Kd3 b4 43.Kc2 Kh6 44.Kb3 a5 45.f4 Kh5 46.f5 a4+ 47.Kxb4 Nxa2+ 48.Bxa2 gxf5 49.Be6 Kg4 50.h5 Kxg3 51.Bxf5 Kf4 52.Bg6 Ke5 53.Kxa4 Kf6 54.Kb4 Ke7 55.Kc5 Kf8 56.Bh7 g5 57.h6 g4 58.Kd4 g3 59.Ke3 Kf7 60.Kf3 Kf6 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.19"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "John A Peters"] [ECO "A35"] [WhiteElo "2515"] [BlackElo "2335"] [PlyCount "82"] 1.Nf3 Nf6 2.c4 c5 3.Nc3 Nc6 4.g3 e6 5.Bg2 Be7 6.O-O O-O 7.d4 d5 8.cxd5 Nxd5 9.Nxd5 exd5 10.dxc5 Bxc5 11.Ng5 Bd4 12.Qd3 g6 13.Qb3 Bf6 14.Qxd5 Nd4 15.Qxd8 Nxe2+ 16.Kh1 Rxd8 17.Ne4 Be7 18.Be3 Be6 19.Rfd1 Rac8 20.Bf3 Rc2 21.Rxd8+ Bxd8 22.Re1 Bc4 23.Nd2 Ba5 24.Rd1 Ba6 25.Nb3 Bb6 26.Bxb6 axb6 27.Rd7 Rxb2 28.Bd5 Nc3 29.Bxf7+ Kh8 30.Rd2 Rxa2 31.Rxa2 Nxa2 32.Nd4 Nc3 33.Kg2 Kg7 34.Bb3 Kf6 35.f4 Bd3 36.Kf3 b5 37.Ke3 Bc4 38.Bc2 Nd5+ 39.Ke4 Nb4 40.Bd1 Nd3 41.Ke3 Nc5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.19"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Kim S Commons"] [ECO "B21"] [WhiteElo "2445"] [BlackElo "2415"] [PlyCount "80"] 1.e4 c5 2.f4 Nf6 3.Nc3 d5 4.e5 d4 5.exf6 dxc3 6.fxg7 cxd2+ 7.Qxd2 Qxd2+ 8.Bxd2 Bxg7 9.O-O-O O-O 10.Be3 b6 11.Nf3 Bb7 12.c3 Bc6 13.Ne5 Bxe5 14.fxe5 Nd7 15.Bh6 Rfd8 16.e6 fxe6 17.Bc4 Nf8 18.Rhe1 Rxd1+ 19.Rxd1 Re8 20.h4 b5 21.Be2 Ng6 22.g3 c4 23.Kd2 Rd8+ 24.Ke3 Rxd1 25.Bxd1 e5 26.Bc2 e6 27.Bg5 Nf8 28.Be4 Bd5 29.Be7 Nd7 30.Bd6 Kg7 31.g4 h6 32.Bc7 Kf7 33.Bc2 Bc6 34.g5 hxg5 35.hxg5 Kg7 36.Bd6 Kf7 37.Bc7 Kg7 38.Bd8 Kf7 39.a3 Nb6 40.Bxb6 axb6 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.19"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "Lubomir Kavalek"] [Black "John Alan Grefe"] [ECO "A39"] [WhiteElo "2555"] [BlackElo "2470"] [PlyCount "58"] 1.Nf3 Nf6 2.g3 c5 3.Bg2 g6 4.O-O Bg7 5.c4 O-O 6.d4 cxd4 7.Nxd4 Nc6 8.Nc3 Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Bd2 Rb8 12.Rac1 Nd7 13.e4 Ne5 14.Qe2 Bg4 15.f3 Be6 16.b3 b5 17.cxb5 axb5 18.Nd5 Bxd5 19.exd5 Re8 20.Kh1 Rb7 21.Rc2 Qa8 22.Rfc1 Rbb8 23.f4 Nd7 24.Be3 b4 25.Rc7 Rb7 26.R7c4 Qa5 27.R1c2 Nb6 28.Bxb6 Qxb6 29.h4 Bf6 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.19"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "William James Lombardy"] [Black "Edmar J Mednis"] [ECO "A00"] [WhiteElo "2520"] [BlackElo "2455"] [PlyCount "32"] 1.g3 g6 2.Bg2 Bg7 3.Nf3 Nf6 4.b3 O-O 5.Bb2 d6 6.d4 Nbd7 7.Qd2 Ne4 8.Qd3 d5 9.c4 c6 10.O-O Ndf6 11.h3 Be6 12.Nc3 Nxc3 13.Qxc3 Ne4 14.Qc2 Rc8 15.e3 Qc7 16.Rac1 Qa5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.20"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "Kenneth S Rogoff"] [Black "Milan Rodoje Vukcevich"] [ECO "A20"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "45"] 1.c4 e5 2.g3 g6 3.Nc3 Bg7 4.Bg2 Ne7 5.e4 O-O 6.Nge2 d6 7.O-O Be6 8.d3 c6 9.Be3 a6 10.Qd2 b5 11.b3 b4 12.Nd1 c5 13.a3 Nbc6 14.axb4 Nxb4 15.Ndc3 Bd7 16.f4 Nec6 17.Bf2 Qc8 18.Rad1 Rb8 19.Kh1 Bh6 20.Bg1 Bg4 21.Rb1 f6 22.Nd1 Nd4 23.Nec3 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.20"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "Samuel Reshevsky"] [Black "James Tarjan"] [ECO "A00"] [WhiteElo "?"] [BlackElo "2530"] [PlyCount "41"] 1.g3 g6 2.Bg2 Bg7 3.c4 e5 4.Nc3 d6 5.Rb1 Nf6 6.e4 O-O 7.Nge2 c6 8.O-O Nbd7 9.b4 Re8 10.d3 a6 11.a4 a5 12.b5 Nc5 13.h3 Nh5 14.Be3 Bd7 15.bxc6 bxc6 16.d4 exd4 17.Bxd4 Qe7 18.g4 Bxd4 19.Qxd4 Nf6 20.Ng3 Reb8 21.f4 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.20"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "Lubomir Kavalek"] [Black "Robert Eugene Byrne"] [ECO "E17"] [WhiteElo "2555"] [BlackElo "2600"] [PlyCount "21"] 1.Nf3 Nf6 2.c4 e6 3.g3 b6 4.Bg2 Bb7 5.O-O Be7 6.d4 O-O 7.Nc3 Ne4 8.Nxe4 Bxe4 9.Ne1 Bxg2 10.Nxg2 c5 11.d5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.20"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "William James Lombardy"] [ECO "B47"] [WhiteElo "2550"] [BlackElo "2520"] [PlyCount "62"] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nc3 e6 6.g3 a6 7.Bg2 Nf6 8.O-O Be7 9.Re1 Nxd4 10.Qxd4 Bc5 11.Qd1 d6 12.Be3 e5 13.Qd2 Be6 14.Bxc5 Qxc5 15.Rad1 Rd8 16.Re3 O-O 17.Rd3 Qb6 18.b3 Qc7 19.Ne2 b5 20.c3 Ne8 21.h3 Qb6 22.Qe3 Qxe3 23.Rxe3 f6 24.f4 g6 25.g4 Kg7 26.g5 Rc8 27.gxf6+ Rxf6 28.Rxd6 exf4 29.e5 fxe3 30.exf6+ Kxf6 31.Rd3 Ng7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.20"] [EventDate "?"] [Round "10"] [Result "0-1"] [White "John Alan Grefe"] [Black "Kim S Commons"] [ECO "B11"] [WhiteElo "2470"] [BlackElo "2415"] [PlyCount "46"] 1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bh5 5.exd5 cxd5 6.Bb5+ Nc6 7.g4 Bg6 8.Ne5 Rc8 9.d4 e6 10.Qe2 Bb4 11.h4 Nge7 12.h5 Be4 13.f3 O-O 14.Nxc6 Nxc6 15.Be3 Qf6 16.fxe4 Nxd4 17.Bxd4 Qxd4 18.Rd1 Bxc3+ 19.bxc3 Qxc3+ 20.Rd2 dxe4 21.O-O Rc5 22.Bd7 Rg5 23.Rfd1 Qh3 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.20"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "Edmar J Mednis"] [Black "Pal Benko"] [ECO "B42"] [WhiteElo "2455"] [BlackElo "2515"] [PlyCount "45"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.c4 Be7 8.Nc3 O-O 9.Qe2 Re8 10.Be3 Nbd7 11.f4 Bf8 12.Kh1 b6 13.e5 dxe5 14.Nc6 Qc7 15.fxe5 Bb7 16.exf6 Bxc6 17.Bxh7+ Kxh7 18.Qh5+ Kg8 19.fxg7 Bxg7 20.Qxf7+ Kh8 21.Qh5+ Kg8 22.Qf7+ Kh8 23.Qh5+ 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.20"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "John A Peters"] [Black "Arthur Bisguier"] [ECO "C67"] [WhiteElo "2335"] [BlackElo "2445"] [PlyCount "37"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.Qxd8+ Kxd8 9.Nc3 h6 10.h3 Be6 11.g4 Ne7 12.Nd4 Bc4 13.Rd1 Ke8 14.b3 Ba6 15.a4 Rd8 16.Be3 Ng6 17.e6 Bd6 18.Ne4 Ne7 19.Nf5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.22"] [EventDate "?"] [Round "11"] [Result "1-0"] [White "William James Lombardy"] [Black "Kenneth S Rogoff"] [ECO "A07"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "79"] 1.e4 c6 2.d3 d5 3.Nd2 e5 4.Ngf3 Bd6 5.g3 Nf6 6.Bg2 O-O 7.O-O Nbd7 8.exd5 cxd5 9.c4 Nc5 10.cxd5 Nxd3 11.Ng5 Bg4 12.Bf3 Bxf3 13.Qxf3 Nxc1 14.Raxc1 Be7 15.Nde4 Nxe4 16.Nxe4 f5 17.Nc5 Bxc5 18.Rxc5 Rc8 19.Rxc8 Qxc8 20.d6 e4 21.Qb3+ Kh8 22.Qd5 Rd8 23.g4 Qd7 24.Rc1 f4 25.Qxe4 Qxg4+ 26.Qg2 h5 27.Qxg4 hxg4 28.Rd1 Kh7 29.Kg2 g5 30.h3 gxh3 31.Kxh3 Rd7 32.Kg4 Kg6 33.Rd5 Kf6 34.Rd1 Ke5 35.Kxg5 Rg7+ 36.Kh6 Rd7 37.Kg6 a5 38.Re1+ Kd5 39.Kf5 Rf7+ 40.Kg6 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.22"] [EventDate "?"] [Round "11"] [Result "1/2-1/2"] [White "James Tarjan"] [Black "Lubomir Kavalek"] [ECO "C28"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "149"] 1.e4 e5 2.Bc4 Nf6 3.d3 Nc6 4.Nc3 Na5 5.Bb3 Nxb3 6.axb3 d6 7.f4 exf4 8.Bxf4 Be7 9.Nf3 O-O 10.O-O d5 11.Nxd5 Nxd5 12.exd5 Qxd5 13.c4 Qd8 14.d4 Bf5 15.Qd2 c6 16.Rae1 a5 17.Re5 Bg6 18.Re3 Bb4 19.Qe2 Re8 20.Rd1 Rxe3 21.Qxe3 Qe8 22.Ne5 Bc2 23.Rc1 Bf5 24.Qf3 f6 25.Nd3 Bf8 26.Re1 Qd7 27.Nc5 Qxd4+ 28.Be3 Qg4 29.Qxg4 Bxg4 30.Nxb7 a4 31.bxa4 Rxa4 32.b3 Ra8 33.Bf4 Bb4 34.Re3 Ra7 35.Re8+ Kf7 36.Rb8 Ra1+ 37.Kf2 Be1+ 38.Ke3 Ra2 39.h3 Bd2+ 40.Ke4 f5 41.Ke5 Bc3+ 42.Kd6 Bd1 43.g3 Kg6 44.Nd8 Rb2 45.Nxc6 Rxb3 46.Rxb3 Bxb3 47.c5 Bb2 48.Na5 Ba4 49.c6 Bb5 50.c7 Ba6 51.Kd7 Kh5 52.Nb3 Ba3 53.Bd6 Bxd6 54.Kxd6 g5 55.Ke5 Bc8 56.Nc5 f4 57.gxf4 gxf4 58.Kxf4 Kh4 59.Ne4 Kxh3 60.Nf6 Kh4 61.Ke5 Kg5 62.Nxh7+ Kg6 63.Nf6 Kf7 64.Nd5 Ke8 65.Kd6 Ba6 66.Nf6+ Kf7 67.Ne4 Bc8 68.Ng5+ Kf6 69.Nf3 Kf7 70.Ne5+ Ke8 71.Nc4 Bg4 72.Nb6 Bh3 73.Nd5 Bc8 74.Kc6 Bd7+ 75.Kd6 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.22"] [EventDate "?"] [Round "11"] [Result "1-0"] [White "Milan Rodoje Vukcevich"] [Black "Samuel Reshevsky"] [ECO "B61"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "131"] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 Rc8 8.O-O-O h6 9.Bxf6 gxf6 10.Nf5 a6 11.Kb1 b5 12.Qf4 Ne5 13.Nd5 Rc6 14.Qg3 Qb8 15.Be2 h5 16.Ng7+ Kd8 17.Nxh5 f5 18.exf5 Bxf5 19.Ne3 Bd7 20.Nf4 e6 21.Nd3 Nc4 22.Qf4 f5 23.g4 Bh6 24.Qg3 Bxe3 25.fxe3 fxg4 26.Bxg4 Kc7 27.Nb4 Rb6 28.Rhf1 Qg8 29.h3 Qg7 30.Nd3 Rbb8 31.Qe1 Rhf8 32.Rf4 Rxf4 33.exf4 Qd4 34.c3 Qe3 35.Nb4 Ra8 36.b3 a5 37.Nc2 Qxe1 38.Rxe1 Nb6 39.Bxe6 Bxe6 40.Rxe6 Nd5 41.Nd4 Nxc3+ 42.Kb2 b4 43.f5 Rh8 44.f6 Rxh3 45.Re7+ Kb6 46.Kc2 Rh2+ 47.Kd3 Nd5 48.f7 Nf4+ 49.Ke3 Ng6 50.Re6 Nf8 51.Re8 Ng6 52.Rg8 Rh7 53.Rxg6 Rxf7 54.Rxd6+ Kb7 55.Rd5 Kb6 56.Rb5+ Ka6 57.Rc5 Rf1 58.Rc6+ Kb7 59.Rc2 Kb6 60.Kd3 Rf6 61.Re2 Rf1 62.Re6+ Kc5 63.Rc6+ Kd5 64.Ra6 Rd1+ 65.Ke3 Re1+ 66.Ne2 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.22"] [EventDate "?"] [Round "11"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "John Alan Grefe"] [ECO "B52"] [WhiteElo "2600"] [BlackElo "2470"] [PlyCount "84"] 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c4 e5 7.Nc3 Nge7 8.d3 g6 9.Bg5 Bg7 10.Bxe7 Nxe7 11.a3 Bh6 12.b4 b6 13.bxc5 bxc5 14.Rb1 O-O 15.Qb3 f5 16.Qb7 Qe6 17.Rb5 Rae8 18.Rfb1 Nc8 19.Qd5 Qxd5 20.Nxd5 Ne7 21.Nxe7+ Rxe7 22.Rb7 Rxb7 23.Rxb7 Rf7 24.Rb1 fxe4 25.dxe4 Rc7 26.Kf1 Kf7 27.Ke2 Ke6 28.h4 Kd7 29.Kd3 Kc8 30.Kc2 Rf7 31.Rb3 Bf8 32.g3 Be7 33.Kd2 Bd8 34.Rd3 Be7 35.Ke2 Kc7 36.Rb3 Rf8 37.Ng5 Bxg5 38.hxg5 Rb8 39.Rxb8 Kxb8 40.f4 Kc7 41.f5 Kd7 42.Kd3 a5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.22"] [EventDate "?"] [Round "11"] [Result "0-1"] [White "Pal Benko"] [Black "Walter Shawn Browne"] [ECO "A05"] [WhiteElo "2515"] [BlackElo "2550"] [PlyCount "72"] 1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 d6 6.d4 Nbd7 7.d5 e5 8.dxe6 fxe6 9.Nc3 Nc5 10.Be3 Nce4 11.Nxe4 Nxe4 12.Qc2 Nf6 13.c5 Bd7 14.Qb3 Nd5 15.Ng5 Rf5 16.Bd2 Rxg5 17.Bxg5 Qxg5 18.Qxb7 Qd8 19.cxd6 cxd6 20.Bxd5 Rb8 21.Bxe6+ Bxe6 22.Qe4 Qd7 23.Rad1 Rxb2 24.Qa8+ Bf8 25.Rb1 Qb5 26.Rxb2 Qxb2 27.Qxa7 Qxe2 28.Qe3 Qxa2 29.h4 Qd5 30.Kh2 Qf5 31.Rd1 d5 32.Re1 Qh3+ 33.Kg1 Bf5 34.Qd4 Be4 35.Rxe4 dxe4 36.Qd5+ Kg7 0-1 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.22"] [EventDate "?"] [Round "11"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Edmar J Mednis"] [ECO "A45"] [WhiteElo "2445"] [BlackElo "2455"] [PlyCount "107"] 1.d4 Nf6 2.Nc3 d5 3.Bg5 c6 4.e3 Bf5 5.Bd3 Bxd3 6.cxd3 e6 7.Nf3 Be7 8.O-O O-O 9.e4 Ne8 10.Bxe7 Qxe7 11.Re1 Qd8 12.Rc1 Nd7 13.Qd2 Nb6 14.Ne2 Nc8 15.h4 dxe4 16.dxe4 Nf6 17.Nf4 Ne7 18.g3 Qb6 19.Qc2 h6 20.Qc4 Kh8 21.Kg2 Rad8 22.Nd3 Qc7 23.b4 Nc8 24.Qb3 Qe7 25.a3 Nb6 26.Nf4 Qd7 27.Ne5 Qe8 28.Rcd1 Kg8 29.a4 Nbd7 30.Ned3 Kh8 31.h5 Rb8 32.Qc3 Rc8 33.Qb2 Kg8 34.f3 Qe7 35.Qb3 Kh7 36.Qb2 Rfe8 37.g4 e5 38.Ne2 Kg8 39.Ng3 Qe6 40.dxe5 Nxe5 41.Nc5 Qe7 42.f4 Nexg4 43.Kf3 b6 44.Nf5 Qc7 45.Rg1 bxc5 46.Rxg4 Re6 47.Rxg7+ Kh8 48.Rdg1 Qd7 49.Ne3 Qd3 50.Qc2 Qxc2 51.Nxc2 Nxe4 52.Rxf7 Nd2+ 53.Kf2 Rce8 54.Re1 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.22"] [EventDate "?"] [Round "11"] [Result "1-0"] [White "Kim S Commons"] [Black "John A Peters"] [ECO "A15"] [WhiteElo "2415"] [BlackElo "2335"] [PlyCount "67"] 1.Nf3 Nf6 2.c4 b6 3.g3 Bb7 4.Bg2 c5 5.O-O g6 6.Nc3 Bg7 7.d4 cxd4 8.Qxd4 O-O 9.Qh4 d6 10.Bg5 Nbd7 11.Rfd1 Re8 12.Rac1 a6 13.b3 Nc5 14.Nd5 b5 15.Nd4 bxc4 16.Bxf6 exf6 17.Rxc4 Re5 18.Nc3 Bxg2 19.Kxg2 Qd7 20.Nf3 Rh5 21.Qg4 Ne6 22.Qe4 Rd8 23.Qc6 Qxc6 24.Rxc6 Rc5 25.Rxc5 dxc5 26.Rxd8+ Nxd8 27.Ne4 Ne6 28.g4 Kf8 29.Ne1 h5 30.gxh5 f5 31.Nd6 Nf4+ 32.Kf3 Nxh5 33.Nd3 g5 34.Nxf5 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.24"] [EventDate "?"] [Round "12"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "Arthur Bisguier"] [ECO "C89"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "140"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 e4 10.dxc6 exf3 11.d4 fxg2 12.Bg5 Bg4 13.Qd3 Re8 14.Nd2 Nd5 15.Bxe7 Rxe7 16.Rxe7 Nxe7 17.Qe4 Bf5 18.Qf3 Qd6 19.Re1 Bg6 20.Ne4 Qxc6 21.Nf6+ gxf6 22.Qxc6 Nxc6 23.Bd5 Rb8 24.Bxc6 b4 25.c4 b3 26.a3 Bd3 27.c5 Rd8 28.d5 Bb5 29.Bxb5 axb5 30.Rd1 Kf8 31.Rd3 Ke7 32.Kxg2 Rg8+ 33.Kf3 Rg5 34.Rxb3 Rxd5 35.Rxb5 Rh5 36.Kg3 Rg5+ 37.Kf3 Rf5+ 38.Kg2 Rg5+ 39.Kf1 Rh5 40.Kg2 Rg5+ 41.Kf1 Rh5 42.Ra5 Rxh2 43.Ra6 Rh6 44.b4 Rg6 45.Ra8 h5 46.Rh8 Rg5 47.Ke2 f5 48.f4 Rg3 49.Rxh5 Rxa3 50.Rxf5 Rb3 51.Re5+ Kd7 52.Re4 Kc6 53.f5 Kd5 54.Re7 Rxb4 55.Rxc7 f6 56.Kf3 Ke5 57.Re7+ Kxf5 58.c6 Rc4 59.c7 Rc3+ 60.Ke2 Kf4 61.Kd2 Rc6 62.Kd3 f5 63.Kd4 Rc1 64.Kd5 Rd1+ 65.Ke6 Re1+ 66.Kd7 Rd1+ 67.Ke8 Rc1 68.Kd8 Kg3 69.Rg7+ Kf3 70.Rf7 f4 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.24"] [EventDate "?"] [Round "12"] [Result "1/2-1/2"] [White "Samuel Reshevsky"] [Black "William James Lombardy"] [ECO "D63"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "128"] 1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 Be7 5.Bg5 O-O 6.Rc1 c6 7.e3 Nbd7 8.Bd3 a6 9.c5 e5 10.dxe5 Ne8 11.Bf4 Nxc5 12.Bb1 Bg4 13.Qc2 g6 14.Nd4 Ne6 15.Bh6 N8g7 16.O-O Re8 17.Qd2 Nxd4 18.exd4 Bf5 19.Bxg7 Bxb1 20.Rxb1 Kxg7 21.b4 f6 22.f4 fxe5 23.dxe5 d4 24.Ne4 Qd5 25.Qd3 Rad8 26.f5 gxf5 27.Rxf5 Kh8 28.Rbf1 Qe6 29.Rf7 Qg6 30.R1f3 Rg8 31.g3 Rg7 32.R7f5 Qe6 33.a3 Kg8 34.Nf6+ Bxf6 35.exf6 Rg4 36.f7 Kf8 37.Kg2 Qe4 38.Qxe4 Rxe4 39.Rg5 Ke7 40.Rg7 Rf8 41.Rxh7 b6 42.Rh6 Re6 43.Rh4 c5 44.bxc5 bxc5 45.Rf5 Rxf7 46.Rxc5 Re2+ 47.Kh3 Rff2 48.Rxd4 Rxh2+ 49.Kg4 Re3 50.Kf4 Rxa3 51.Re5+ Kf6 52.Rd6+ Kf7 53.g4 Rb2 54.Rd7+ Kf8 55.Rf5+ Ke8 56.Rg7 Ra4+ 57.Kg3 Re4 58.Rf6 a5 59.Ra6 Kf8 60.Rh7 Kg8 61.Rc7 Rbe2 62.Rxa5 Re7 63.Rcc5 R2e3+ 64.Kh4 Kg7 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.24"] [EventDate "?"] [Round "12"] [Result "1-0"] [White "Robert Eugene Byrne"] [Black "James Tarjan"] [ECO "B78"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "103"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 O-O 9.Bc4 Bd7 10.O-O-O Ne5 11.Bb3 Rc8 12.Bg5 Nc4 13.Bxc4 Rxc4 14.e5 dxe5 15.Nb3 Rc7 16.Nb5 Bf5 17.Nxc7 Qxc7 18.g4 Be6 19.Rhe1 Rc8 20.Kb1 Nd5 21.Re2 Nb6 22.Bh6 Nc4 23.Qc1 Bh8 24.c3 Qc6 25.Rd3 Nd6 26.Re1 f5 27.Qd1 Bc4 28.Rd2 f4 29.Na5 Qb6 30.Nxc4 Nxc4 31.Rde2 e4 32.Ka1 Ne3 33.Rxe3 fxe3 34.Bxe3 Qe6 35.fxe4 Be5 36.h3 Kg7 37.Qd2 Kg8 38.Bh6 a6 39.Rd1 Bg7 40.Bxg7 Kxg7 41.Qd7 Rc6 42.Qxb7 Qxe4 43.a3 Qe2 44.Rd4 Re6 45.Ka2 Qf1 46.h4 Qe2 47.g5 h6 48.Rf4 Qe5 49.Qf3 hxg5 50.hxg5 Qb8 51.Rf7+ Kg8 52.Qh3 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.24"] [EventDate "?"] [Round "12"] [Result "1/2-1/2"] [White "Lubomir Kavalek"] [Black "Milan Rodoje Vukcevich"] [ECO "A04"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "22"] 1.Nf3 c5 2.c4 Nc6 3.Nc3 g6 4.e3 d6 5.d4 Bg4 6.Be2 cxd4 7.exd4 Bg7 8.O-O Nf6 9.d5 Bxf3 10.Bxf3 Ne5 11.Be2 O-O 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.24"] [EventDate "?"] [Round "12"] [Result "1-0"] [White "John Alan Grefe"] [Black "John A Peters"] [ECO "A22"] [WhiteElo "2470"] [BlackElo "2335"] [PlyCount "79"] 1.c4 e5 2.Nc3 Nf6 3.a3 c6 4.e3 d5 5.d4 exd4 6.exd4 Be7 7.Nf3 O-O 8.Be2 dxc4 9.Bxc4 Nbd7 10.h3 Nb6 11.Bd3 Be6 12.Qe2 Re8 13.O-O Nbd5 14.Be3 Bd6 15.Qd2 Nxc3 16.bxc3 Bd5 17.Be2 Ne4 18.Qc1 Qa5 19.c4 Nc3 20.Bd3 Be4 21.Qc2 Qf5 22.Bxe4 Nxe4 23.c5 Bc7 24.Rab1 Rab8 25.Rfc1 Ng3 26.Qc4 Qe6 27.Rb2 Nf5 28.Qxe6 Rxe6 29.Bd2 Ne7 30.Rc4 b5 31.cxb6 Rxb6 32.Rxb6 Bxb6 33.a4 Nd5 34.a5 Bc7 35.Rc2 f6 36.Rb2 Re7 37.Kf1 Bd6 38.a6 Nc7 39.Rc2 Nxa6 40.Rxc6 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.24"] [EventDate "?"] [Round "12"] [Result "1-0"] [White "Edmar J Mednis"] [Black "Kim S Commons"] [ECO "A14"] [WhiteElo "2455"] [BlackElo "2415"] [PlyCount "93"] 1.c4 Nf6 2.g3 e6 3.Bg2 d5 4.Nf3 Be7 5.O-O O-O 6.d4 dxc4 7.Qc2 a6 8.a4 Bd7 9.Qxc4 Bc6 10.Bf4 Nbd7 11.Nc3 Nb6 12.Qb3 Nbd5 13.Bg5 h6 14.Bxf6 Nxf6 15.Rfd1 Qd6 16.Qc2 a5 17.e4 Qb4 18.Ne5 Rfd8 19.Ne2 Be8 20.Rdc1 Rac8 21.Ra3 Rxd4 22.Nxd4 Qxd4 23.Qc3 Rd8 24.Qxd4 Rxd4 25.Raa1 b6 26.Rc4 Rd2 27.Bf1 Rxb2 28.Nd3 Rb3 29.Rxc7 Kf8 30.f3 g5 31.Rc8 g4 32.e5 Nd5 33.f4 f5 34.Rac1 Kf7 35.Rb8 Bxa4 36.Rcc8 Bb5 37.Nc1 Rb1 38.Bxb5 Rxb5 39.Kf2 Rb2+ 40.Ne2 b5 41.Ra8 b4 42.Rh8 Nc3 43.Rh7+ Kg6 44.Rxe7 Rxe2+ 45.Kf1 b3 46.Rxe6+ Kh5 47.Rh8 1-0 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.24"] [EventDate "?"] [Round "12"] [Result "1/2-1/2"] [White "Kenneth S Rogoff"] [Black "Pal Benko"] [ECO "B23"] [WhiteElo "2445"] [BlackElo "2515"] [PlyCount "45"] 1.e4 c5 2.Nc3 d6 3.Nf3 a6 4.d4 cxd4 5.Nxd4 e6 6.f4 Nf6 7.Bd3 Qc7 8.O-O Be7 9.Kh1 Nbd7 10.Qe2 g6 11.Nf3 O-O 12.a4 Nc5 13.e5 Ne8 14.Ne4 b6 15.Nxc5 bxc5 16.b3 Bb7 17.exd6 Qxd6 18.Bb2 Bf6 19.Ne5 Qc7 20.Rad1 Nd6 21.Qe1 Bg7 22.Bc3 h5 23.Ba5 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.26"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Milan Rodoje Vukcevich"] [Black "Robert Eugene Byrne"] [ECO "C13"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "43"] 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Ne4 6.Bxe7 Nxc3 7.Qd3 Qxe7 8.Qxc3 Nc6 9.f4 Bd7 10.Nf3 f6 11.exf6 gxf6 12.O-O-O O-O-O 13.a3 Qg7 14.g3 Ne7 15.Bd3 Kb8 16.Rde1 Nc8 17.Rhf1 Nd6 18.Qb3 Rhe8 19.Rf2 Bc6 20.Rfe2 Qd7 21.Qb4 b6 22.Rd1 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.26"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "Samuel Reshevsky"] [ECO "A22"] [WhiteElo "2495"] [BlackElo "?"] [PlyCount "115"] 1.c4 Nf6 2.Nc3 e5 3.e3 d6 4.Nf3 Nbd7 5.d4 Be7 6.Be2 O-O 7.O-O Re8 8.Qc2 Bf8 9.b3 c6 10.Ba3 exd4 11.Nxd4 a5 12.Rfd1 g6 13.Rab1 Qc7 14.Bb2 Nc5 15.a3 Qe7 16.b4 axb4 17.axb4 Nce4 18.Nxe4 Nxe4 19.Bd3 Bg7 20.Ra1 Rxa1 21.Bxa1 Ng5 22.Nb3 Bg4 23.Be2 Bxe2 24.Qxe2 Ra8 25.Bxg7 Kxg7 26.Qc2 f6 27.h3 Nf7 28.Nd4 Ne5 29.Nf3 Nf7 30.Nd2 Qe6 31.Nf3 Qe7 32.b5 Rc8 33.bxc6 Rxc6 34.Qb3 Ne5 35.Nd4 Rc8 36.Rb1 Nxc4 37.Qxb7 Qxb7 38.Rxb7+ Kh6 39.Rd7 Ra8 40.g4 Ra2 41.Rf7 f5 42.gxf5 gxf5 43.Rxf5 Kg6 44.Rf8 Ra5 45.Ne6 Ra2 46.Nf4+ Kg7 47.Rd8 Kf6 48.Rd7 h6 49.Rh7 Kg5 50.Rg7+ Kf5 51.Rd7 Ke4 52.Nh5 Ne5 53.Ng3+ Kf3 54.Rxd6 Ra1+ 55.Nf1 Ke2 56.Rd2+ Kf3 57.e4 Ng6 58.Rd3+ 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.26"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Kenneth S Rogoff"] [ECO "B30"] [WhiteElo "2445"] [BlackElo "2445"] [PlyCount "37"] 1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.b3 Nd4 5.Nxd4 cxd4 6.O-O Ne7 7.Ba3 a6 8.Be2 d6 9.c4 Nc6 10.d3 Be7 11.Nd2 O-O 12.f4 b5 13.Nf3 Bd7 14.Qd2 Qb6 15.Kh1 a5 16.Bb2 e5 17.f5 a4 18.cxb5 Qxb5 19.bxa4 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.26"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Kim S Commons"] [Black "Walter Shawn Browne"] [ECO "A43"] [WhiteElo "2415"] [BlackElo "2550"] [PlyCount "33"] 1.d4 c5 2.e3 Nf6 3.Nf3 g6 4.Be2 Bg7 5.O-O O-O 6.dxc5 Qc7 7.a3 Ne4 8.Nd4 a5 9.b3 Qxc5 10.c4 Nc6 11.Bb2 Qb6 12.Ra2 d6 13.Nb5 Bxb2 14.Rxb2 Na7 15.N5c3 Nf6 16.Na4 Qc7 17.Nd2 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.26"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "William James Lombardy"] [Black "Lubomir Kavalek"] [ECO "C69"] [WhiteElo "2520"] [BlackElo "2555"] [PlyCount "34"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.d3 Ne7 7.Be3 Ng6 8.Nbd2 Be7 9.Qe2 O-O 10.Nc4 Qe6 11.g3 c5 12.Bd2 b6 13.Rfe1 Bf6 14.Ne3 Ne7 15.b3 a5 16.a4 Bb7 17.Bc3 Rae8 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.26"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "John A Peters"] [Black "Edmar J Mednis"] [ECO "C05"] [WhiteElo "2335"] [BlackElo "2455"] [PlyCount "35"] 1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 Qa5 8.Kf2 Be7 9.g3 f6 10.Bd3 b5 11.Ne2 b4 12.Be3 Ba6 13.Kg2 Bxd3 14.Qxd3 c4 15.Qc2 f5 16.h3 Rb8 17.g4 g6 18.h4 1/2-1/2 [Event "USA-ch / Zonal"] [Site "Oberlin, OH USA"] [Date "1975.06.26"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "James Tarjan"] [Black "John Alan Grefe"] [ECO "E45"] [WhiteElo "2480"] [BlackElo "2470"] [PlyCount "32"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Nge2 Ba6 6.Ng3 h5 7.h4 Bxc3+ 8.bxc3 d5 9.Qf3 Qd7 10.e4 dxe4 11.Nxe4 Nxe4 12.Qxe4 O-O 13.Bd3 f5 14.Qe2 Nc6 15.Ba3 Rfe8 16.f4 Na5 1/2-1/2

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