27th US Championship; 1980
June 11-29
Pasadena, CA

         Rtng  1 2 3 4 5 6 7 8 9 0 1 2 3
 1. GM Browne, Walter        2576  x 0 ½ 1 0 ½ 1 ½ 1 1 ½ 1 ½  7½- 4½   +5-2= 5
 2. GM Christiansen, Larry   2532  1 x ½ 1 ½ ½ ½ ½ 1 0 ½ 1 ½  7½- 4½   +4-1= 7
 3. GM Evans, Larry          2517  ½ ½ x 0 0 ½ 1 ½ 1 ½ 1 1 1  7½- 4½   +5-2= 5
 4. GM Seirawan, Yasser      2557  0 0 1 x ½ 1 0 1 ½ 1 ½ 1 ½  7 - 5    +5-3= 4
 5. GM Shamkovich, Leonid    2532  1 ½ 1 ½ x ½ ½ 1 ½ ½ ½ 0 ½  7 - 5    +3-1= 8
 6. GM Lein, Anatol          2519  ½ ½ ½ 0 ½ x ½ ½ ½ ½ ½ 1 ½  6 - 6    +1-1=10
 7.    Zaltsman, Vitaly      2520  0 ½ 0 1 ½ ½ x ½ ½ 1 ½ 0 1  6 - 6    +3-3= 6
 8. GM Benko, Pal            2484  ½ ½ ½ 0 0 ½ ½ x 0 1 ½ ½ ½  5 - 7    +1-3= 8
 9. GM Biyiasis, Peter       2543  0 0 0 ½ ½ ½ ½ 1 x 1 ½ 0 ½  5 - 7    +2-4= 6
10.    Bradford, Joe         2410  0 1 ½ 0 ½ ½ 0 0 0 x 1 1 ½  5 - 7    +3-5= 4
11. GM Byrne, Robert         2527  ½ ½ 0 ½ ½ ½ ½ ½ ½ 0 x ½ ½  5 - 7    +0-2=10
12. IM Peters, John          2500  0 0 0 0 1 0 1 ½ 1 0 ½ x 1  5 - 7    +4-6= 2
13. GM Bisguier, Arthur      2537  ½ ½ 0 ½ ½ ½ 0 ½ ½ ½ ½ 0 x  4½- 7½   +0-3= 9
       Diesen, Mark          2528      ½   0   ½

AVERAGE RATING:  2520

ROUND BY ROUND RESULTS

                     1 2 3 4 5 6 7 8 9 0 1 2 3
 1. GM Browne        ½ 1 0 ½ 1 B 1 ½ 0 1 ½ 1 ½   +3
 2. GM Christiansen  1 ½ 1 ½ ½ 0 1 ½ 1 B ½ ½ ½   +3
 3. GM Evans         0 B 1 1 0 1 1 ½ 1 ½ ½ ½ ½   +3
 4. GM Seirawan      1 ½ ½ ½ 0 ½ 1 1 0 1 1 B 0   +2
 5. GM Shamkovich    ½ ½ B ½ 1 0 ½ ½ 1 ½ 1 ½ ½   +2
 6. GM Lein          ½ ½ ½ ½ ½ ½ ½ ½ 1 0 B ½ ½    =
 7.    Zaltsman      B 0 0 ½ ½ ½ 0 1 ½ 1 ½ ½ 1    =
 8. GM Benko         ½ ½ ½ 1 ½ ½ 0 B ½ ½ 0 0 ½   -3
 9. GM Biyiasis      0 ½ ½ B ½ 0 ½ 0 ½ 0 ½ 1 1   -2
10.    Bradford      1 0 ½ 0 1 1 ½ 0 B 0 ½ ½ 0   -2
11. GM Byrne         0 ½ ½ ½ B ½ 0 ½ ½ ½ ½ ½ ½   -2
12. IM Peters        1 1 ½ 0 0 1 0 1 0 ½ 0 0 B   -2
13. GM Bisguier      0 ½ ½ ½ ½ ½ B 0 0 ½ ½ ½ ½   -3




ROUND 1
White		Christiansen - Biyiasas
White		Seirawan - Evans
White		Bradford - Byrne
Draw		Benko - Browne
Black		Bisguier - Peters
Draw		Lein - Shamkovich

ROUND 2
Draw		Bisguier - Benko
Draw		Byrne - Christiansen
Draw		Shamkovich - Seirawan
White		Peters - Zaltsman
Draw		Biyiasas - Lein
White		Browne - Bradford

ROUND 3
White		Christiansen - Browne
Black		Zaltsman - Evans
Draw		Bradford - Bisguier
Draw		Benko - Peters
Draw		Lein - Byrne
Draw		Seirawan - Biyiasas

ROUND 4
Draw		Bisguier - Christiansen
Draw		Shamkovich - Zaltsman
Black		Peters - Evans
Draw		Byrne - Seirawan
White		Benko - Bradford
Draw		Browne - Lein

ROUND 5
Draw		Christiansen - Benko
Black		Evans - Shamkovich
Draw		Zaltsman - Biyiasas
Black		Seirawan - Browne
White		Bradford - Peters
Draw		Lein - Bisguier

ROUND 6
White		Bradford - Christiansen
Black		Biyiasas - Evans
Draw		Benko - Lein
Draw		Bisguier - Seirawan
Draw		Byrne - Zaltsman
White		Peters - Shamkovich

ROUND 7
White		Christiansen - Peters
Black		Zaltsman - Browne
White		Evans - Byrne
Draw		Seirawan - Benko
Draw		Lein - Bradford
Draw		Shamkovich - Biyiasas

ROUND 8
Draw		Christiansen - Lein
Black		Bisguier - Zaltsman
Black		Bradford - Seirawan
Draw		Browne - Evans
Draw		Byrne - Shamkovich
White		Peters - Biyiasas

ROUND 9
White		Evans - Bisguier
Black		Seirawan - Christiansen
White		Shamkovich - Browne
Draw		Zaltsman - Benko
Draw		Biyiasas - Byrne
White		Lein - Peters

ROUND 10
Draw		Benko - Evans
Draw		Bisguier - Shamkovich
Black		Bradford - Zaltsman
White		Browne - Biyiasas
Black		Lein - Seirawan
Draw		Peters - Byrne

ROUND 11
Draw		Zaltsman - Christiansen
Draw		Evans - Bradford
Draw		Byrne - Browne
Draw		Biyiasas - Bisguier
White		Seirawan - Peters
White		Shamkovich - Benko

ROUND 12
Black		Peters - Browne
Draw		Christiansen - Evans
Draw		Lein - Zaltsman
Black		Benko - Biyiasas
Draw		Bisguier - Byrne
Draw		Bradford - Shamkovich

ROUND 13
Draw		Shamkovich - Christiansen
White		Zaltsman - Seirawan
Draw		Evans - Lein
Draw		Byrne - Benko
White		Biyiasas - Bradford
Draw		Browne - Bisguier

  • Mark Diesen was injured in a fall and forced to withdraw from the tournament after three rounds. Since he did not complete half his schedule, his games were anulled.

  • The tournament was directed by USCF Vice President Tim Redman.

  • Coverage in the September 1980 Chess Life.

    [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.11"] [EventDate "?"] [Round "1"] [Result "1-0"] [White "Larry Mark Christiansen"] [Black "Peter Biyiasas"] [ECO "E09"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "73"] 1.g3 Nf6 2.Bg2 d5 3.Nf3 e6 4.O-O Be7 5.c4 O-O 6.d4 Nbd7 7.Qc2 c6 8.Nbd2 b5 9.b3 Ba6 10.Bb2 bxc4 11.bxc4 Rb8 12.Rab1 Bb4 13.Rfc1 Nb6 14.c5 Bxd2 15.Nxd2 Nc4 16.Nxc4 Bxc4 17.Bc3 Nd7 18.e4 Qc7 19.Bd2 Rxb1 20.Rxb1 Rb8 21.Re1 Rb5 22.h3 Nb8 23.a4 Rb7 24.Bf4 Qc8 25.Qc3 Qd8 26.Bd6 Rb3 27.Qd2 Na6 28.exd5 cxd5 29.Re3 Rb1+ 30.Re1 Rb3 31.Re3 Rb1+ 32.Re1 Rb4 33.Qf4 Qc8 34.Be5 Nb8 35.Qg5 Qf8 36.Bd6 h6 37.Qd2 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.11"] [EventDate "?"] [Round "1"] [Result "1-0"] [White "Yasser Seirawan"] [Black "Larry Melvyn Evans"] [ECO "A25"] [WhiteElo "2555"] [BlackElo "?"] [PlyCount "81"] 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Rb1 a5 6.a3 f5 7.d3 Nf6 8.b4 axb4 9. axb4 d6 10.e3 O-O 11.Nge2 Be6 12.Nd5 Qd7 13.O-O Kh8 14.b5 Bxd5 15.Bxd5 Nd8 16.Bg2 d5 17.cxd5 Nxd5 18.Qb3 c6 19.Ba3 Re8 20.Rfc1 Ne6 21.bxc6 bxc6 22. Rc4 Ra6 23.Ra4 Rb6 24.Qc2 Rxb1+ 25.Qxb1 Rc8 26.Qb3 Bf6 27.Ra6 Kg7 28.Bxd5 cxd5 29.Rd6 Qf7 30.Qxd5 Nf8 31.Qb5 Rc2 32.Rb6 Ne6 33.Rb7 Nc7 34.Qa5 Kh6 35.Nc3 Bd8 36.Qxe5 Qd7 37.Bf8+ Kh5 38.g4+ Kxg4 39.Qf4+ Kh5 40.Qh6+ Kg4 41. Rb4+ 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.11"] [EventDate "?"] [Round "1"] [Result "1-0"] [White "Joseph M Bradford"] [Black "Robert Eugene Byrne"] [ECO "A14"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "67"] 1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.c4 Be7 6.b3 O-O 7.Bb2 c5 8.Nc3 d5 9.Ne5 Nc6 10.cxd5 Nxe5 11.d6 Bxg2 12.dxe7 Qxe7 13.Kxg2 Rad8 14.Kg1 Nc6 15.d3 Ng4 16.Qd2 f5 17.Rad1 e5 18.f3 Nf6 19.Qg5 Qe6 20.Qh4 Nd4 21.e3 Nc2 22.Bc1 Nb4 23.d4 e4 24.dxc5 Rxd1 25.Rxd1 bxc5 26.fxe4 fxe4 27.Ba3 Qe5 28.Na4 Nfd5 29.Nxc5 Nxe3 30.Nd7 Qd4 31.Qxh7+ Kxh7 32.Nxf8+ Kg8 33.Rxd4 Nbc2 34.Rxe4 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.11"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "Walter Shawn Browne"] [ECO "B52"] [WhiteElo "2485"] [BlackElo "2540"] [PlyCount "26"] 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nf6 6.Nc3 Nc6 7.d4 cxd4 8.Nxd4 Qg4 9.O-O Qxd1 10.Rxd1 Nxd4 11.Rxd4 Rc8 12.b3 g6 13.Bb2 Bg7 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.11"] [EventDate "?"] [Round "1"] [Result "0-1"] [White "Arthur Bisguier"] [Black "John A Peters"] [ECO "A46"] [WhiteElo "2455"] [BlackElo "2465"] [PlyCount "124"] 1.d4 Nf6 2.Nf3 e6 3.Bf4 d5 4.e3 Be7 5.h3 O-O 6.Nbd2 c5 7.c3 b6 8.Ne5 Bb7 9.Bd3 Nbd7 10.O-O Nxe5 11.Bxe5 Nd7 12.Bg3 Bf6 13.Nf3 Qe7 14.Qe2 Rfe8 15.Rad1 c4 16.Bb1 b5 17.e4 dxe4 18.Bxe4 Bxe4 19.Qxe4 Nb6 20.Qc6 Qd7 21.Qxd7 Nxd7 22.Nd2 Be7 23.b3 Nb6 24.bxc4 bxc4 25.Rb1 Rac8 26.Rfc1 Red8 27.Rb5 Kf8 28.Kf1 Rd5 29.Rxd5 Nxd5 30.Ke2 Rc6 31.Rc2 Bd8 32.Ne4 Be7 33.Nd2 h5 34.Nf1 Ra6 35.Bb8 Rxa2 36.Rxa2 Nxc3+ 37.Kd2 Nxa2 38.Bxa7 Nb4 39.Kc3 Nd3 40.f3 Ne1 41.g4 Nxf3 42.gxh5 Ng5 43.Kxc4 Nxh3 44.Bb8 Bg5 45.Kd3 Bf4 46.Ba7 Bd6 47.Ke4 f5+ 48.Kf3 Ng5+ 49.Kg2 Ne4 50.d5 Nf6 51.dxe6 Nxh5 52.Ne3 g6 53.Nd5 Ng7 54.Kf3 Nxe6 55.Be3 Kf7 56.Bd2 g5 57.Bc3 Kg6 58.Ne3 g4+ 59.Kg2 Nf4+ 60.Kf1 Bc5 61.Nc4 g3 62.Ne5+ Kh5 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.11"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Anatoly Lein"] [Black "Leonid Alexandrovich Shamkovich"] [ECO "A15"] [WhiteElo "2520"] [BlackElo "2515"] [PlyCount "27"] 1.c4 Nf6 2.g3 c6 3.Bg2 d5 4.cxd5 cxd5 5.Nf3 Nc6 6.O-O Bg4 7.d3 e6 8.Nc3 Be7 9.Bf4 O-O 10.Ne5 Nxe5 11.Bxe5 Qb6 12.h3 Bh5 13.Qd2 Rac8 14.e3 1/2-1/2 [Event "USA-ch+"] [Site "Greenville, PA USA"] [Date "1980.06.11"] [EventDate "?"] [Round "1"] [Result "1/2-1/2"] [White "Mark C Diesen"] [Black "Vitaly F Zaltsman"] [ECO "E59"] [WhiteElo "2435"] [BlackElo "2460"] [PlyCount "70"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7 11. Qc2 e5 12. Bb5 e4 13. Ng5 Bf5 14. f3 Qe7 15. fxe4 Bxe4 16. Nxe4 Nxe4 17. a4 Qe6 18. Bd3 Rfe8 19. Rf4 Nf6 20. Bd2 Rad8 21. Re1 b6 22. Bc1 Ne7 23. Qb2 Ng6 24. Rf2 Qd6 25. h3 Re7 26. a5 Kh8 27. axb6 axb6 28. Qc2 Kg8 29. Qa2 Qc6 30. Qb3 Rf8 31. c4 Qd6 32. Rd1 Qc7 33. Rb2 Rb8 34. d5 Qd6 35. Rf2 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.12"] [EventDate "?"] [Round "2"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Pal Benko"] [ECO "B23"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "42"] 1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O e6 7.e5 f5 8.Nxd4 cxd4 9.Ne2 Qb6 10.Bd3 Ne7 11.b3 d6 12.exd6 Qxd6 13.a4 Kf7 14.Ba3 Qc7 15.Bc4 a6 16.Bxe7 Qxe7 17.Nc1 Bd7 18.a5 Bb5 19.Nd3 Rhc8 20.Qe2 Rc6 21.Ra2 Rac8 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.12"] [EventDate "?"] [Round "2"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "Larry Mark Christiansen"] [ECO "B17"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "50"] 1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.g3 Bg4 8.Bg2 e6 9.c3 Bd6 10.O-O O-O 11.Qb3 Bxf3 12.Bxf3 Qc7 13.Rd1 Rab8 14.c4 b6 15.Be3 Rfe8 16.Rd2 e5 17.dxe5 Bxe5 18.Rad1 c5 19.Qd3 h6 20.Kg2 Re7 21.Qf5 Rbe8 22.b3 Re6 23.Bd5 R6e7 24.Rd3 Bb2 25.Bf3 Re6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.12"] [EventDate "?"] [Round "2"] [Result "1/2-1/2"] [White "Leonid Alexandrovich Shamkovich"] [Black "Yasser Seirawan"] [ECO "C07"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "69"] 1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 cxd4 5.exd5 Qxd5 6.Bc4 Qd6 7.O-O Nf6 8.Nb3 Nc6 9.Nbxd4 Nxd4 10.Nxd4 a6 11.Re1 Qc7 12.Bd3 Bd6 13.Nf5 Bxh2+ 14.Kh1 h5 15.g3 Kf8 16.Bf4 Qb6 17.Bd6+ Ke8 18.Nxg7+ Kd7 19.Be5 Ng4 20.Bf1 Ke7 21.Bd4 Qa5 22.Bg2 Rd8 23.Qf3 f6 24.c3 e5 25.Nxh5 Rh8 26.b4 Qc7 27.Bh3 Qc6 28.Qxc6 bxc6 29.Bc5+ Kf7 30.f3 Bxg3 31.Nxg3 Rxh3+ 32.Kg2 Rh2+ 33.Kg1 Rh3 34.Kg2 Rh2+ 35.Kg1 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.12"] [EventDate "?"] [Round "2"] [Result "1-0"] [White "John A Peters"] [Black "Vitaly F Zaltsman"] [ECO "B56"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "45"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.f4 g6 7.Nxc6 bxc6 8.e5 Nd7 9.exd6 exd6 10.Be3 Qe7 11.Qd4 Nf6 12.O-O-O d5 13.Re1 Be6 14.g4 Bg7 15.f5 O-O 16.g5 Bxf5 17.gxf6 Bxf6 18.Qc5 Rfe8 19.Qxe7 Rxe7 20.Bd2 Be4 21.Nxe4 dxe4 22.Bc4 Bd4 23.Bg5 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.12"] [EventDate "?"] [Round "2"] [Result "1/2-1/2"] [White "Peter Biyiasas"] [Black "Anatoly Lein"] [ECO "A07"] [WhiteElo "2485"] [BlackElo "2520"] [PlyCount "50"] 1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 Nf6 5.Bg2 Be7 6.O-O O-O 7.e5 Ng4 8.Re1 f6 9.exf6 Bxf6 10.h3 Nge5 11.Nxe5 Nxe5 12.Nd2 Nc6 13.Ne4 Be7 14.h4 b6 15.Ng5 Bb7 16.c3 Qe8 17.Bf4 Bxg5 18.hxg5 Nd8 19.Bxb7 Nxb7 20.d4 Qf7 21.dxc5 Nxc5 22.Qd4 d5 23.Bd6 Rfc8 24.Bxc5 bxc5 25.Qg4 Rc6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.12"] [EventDate "?"] [Round "2"] [Result "1-0"] [White "Walter Shawn Browne"] [Black "Joseph M Bradford"] [ECO "E11"] [WhiteElo "2540"] [BlackElo "2305"] [PlyCount "150"] 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 d5 5.e3 O-O 6.Bd3 Nbd7 7.O-O c5 8.a3 Ba5 9.Qc2 cxd4 10.exd4 Bc7 11.cxd5 exd5 12.Re1 b6 13.Nf1 h6 14.Bd2 Bb7 15.Bb4 Re8 16.Rxe8+ Nxe8 17.Re1 Ndf6 18.Be7 Qd7 19.Bf5 Qc6 20.Qxc6 Bxc6 21.Bxf6 gxf6 22.Ne3 Bf4 23.Bd3 Nd6 24.Rc1 Ba4 25.g3 Bxe3 26.fxe3 Re8 27.Kf2 Re7 28.Nh4 Kf8 29.Nf5 Nxf5 30.Rc8+ Re8 31.Bxf5 Rxc8 32.Bxc8 Ke7 33.Kf3 Bd1+ 34.Kf4 Be2 35.Bg4 Bd3 36.Bf5 Be2 37.Bc2 Ke6 38.h3 Bf1 39.h4 Be2 40.Bf5+ Ke7 41.Bc2 Ke6 42.Bf5+ Ke7 43.Bg4 Bb5 44.Bf3 Bc6 45.Kg4 Kf8 46.Kf5 Ke7 47.Kf4 Ke8 48.b4 Ke7 49.Bg2 a5 50.bxa5 bxa5 51.Bf3 Bb7 52.Bh1 Bc6 53.Bg2 Bb7 54.Bh1 Bc6 55.Bf3 Bb7 56.Kg4 Kf8 57.Kf5 Ke7 58.e4 dxe4 59.Bxe4 Bc8+ 60.Kf4 Kd6 61.Ke3 Be6 62.Kd3 Bb3 63.Kc3 Ba2 64.Bd3 Be6 65.Be4 Bc8 66.Kd2 Be6 67.Ke3 Bc4 68.Kf4 Be6 69.Bf3 Bd7 70.d5 Bc8 71.Ke4 Bd7 72.Bh5 f5+ 73.Kf4 Kxd5 74.Bxf7+ Kd4 75.Bg6 Kc3 1-0 [Event "USA-ch+"] [Site "Greenville, PA USA"] [Date "1980.06.12"] [EventDate "?"] [Round "2"] [Result "1/2-1/2"] [White "Larry Melvyn Evans"] [Black "Mark C Diesen"] [ECO "A34"] [WhiteElo "2520"] [BlackElo "2435"] [PlyCount "24"] 1. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 6. d3 e5 7. Nf3 Nc6 8. O-O Be7 9. a3 O-O 10. Bd2 Be6 11. Rc1 f6 12. Ne4 Na6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.13"] [EventDate "?"] [Round "3"] [Result "1-0"] [White "Larry Mark Christiansen"] [Black "Walter Shawn Browne"] [ECO "E47"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "65"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Ne2 d5 7.O-O cxd4 8.exd4 dxc4 9.Bxc4 Nbd7 10.Qd3 b6 11.a3 Be7 12.Be3 Bb7 13.Rac1 Ng4 14.Bf4 e5 15.Bg3 h5 16.Qf5 exd4 17.Nxd4 Ndf6 18.Rfd1 Qc8 19.Ncb5 Bc5 20.b4 Bxd4 21.Nxd4 Nh6 22.Bxf7+ Kxf7 23.Rc7+ Kg8 24.Qg6 Qxc7 25.Bxc7 Be4 26.Qg5 Nf7 27.Qg3 Rfe8 28.f3 Bh7 29.Nc6 g5 30.h4 g4 31.Qf4 Re6 32.Nd8 Nxd8 33.Bxd8 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.13"] [EventDate "?"] [Round "3"] [Result "0-1"] [White "Vitaly F Zaltsman"] [Black "Larry Melvyn Evans"] [ECO "E98"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "78"] 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Nd3 f5 11.Bd2 Nf6 12.f3 f4 13.c5 g5 14.Rc1 Ng6 15.cxd6 cxd6 16.Nf2 h5 17.h3 Rf7 18.a4 Bf8 19.Nb5 Rg7 20.Rc3 Nh4 21.Be1 a6 22.Na3 Bd7 23.a5 Rc8 24.Nc4 Bb5 25.Nb6 Rxc3 26.Bxc3 Qe8 27.Nc4 Qg6 28.Qd3 Be7 29.Bb4 g4 30.fxg4 hxg4 31.hxg4 Bd7 32.Qd1 Nxe4 33.Nxe4 Qxe4 34.Rf2 Qg6 35.Nb6 Bxg4 36.Bxg4 Qxg4 37.Qxg4 Rxg4 38.Nc8 Bg5 39.Bxd6 e4 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.13"] [EventDate "?"] [Round "3"] [Result "1/2-1/2"] [White "Joseph M Bradford"] [Black "Arthur Bisguier"] [ECO "C55"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "56"] 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Be7 5.Nc3 d6 6.Be3 Na5 7.h3 c6 8.a3 Nxc4 9.dxc4 Be6 10.Qe2 Nd7 11.Rd1 Qc7 12.Ng5 Bxg5 13.Bxg5 h6 14.Be3 Rd8 15.O-O O-O 16.Rd2 f5 17.exf5 Bxf5 18.Qh5 Kh7 19.Rfd1 Bg6 20.Qh4 Nf6 21.b4 a6 22.f4 Qe7 23.fxe5 Qxe5 24.Bd4 Qg5 25.Bf2 Qe5 26.Bd4 Qg5 27.Bf2 Qxh4 28.Bxh4 Rde8 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.13"] [EventDate "?"] [Round "3"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "John A Peters"] [ECO "A00"] [WhiteElo "2485"] [BlackElo "2465"] [PlyCount "23"] 1.g3 c5 2.Bg2 Nc6 3.c4 g6 4.e3 Bg7 5.Ne2 d6 6.Nbc3 Nh6 7.O-O O-O 8.b3 Bf5 9.d4 cxd4 10.exd4 e5 11.d5 Ne7 12.h3 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.13"] [EventDate "?"] [Round "3"] [Result "1/2-1/2"] [White "Anatoly Lein"] [Black "Robert Eugene Byrne"] [ECO "E76"] [WhiteElo "2520"] [BlackElo "2530"] [PlyCount "44"] 1.c4 g6 2.Nc3 Bg7 3.d4 Nf6 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.d5 e6 8.dxe6 Bxe6 9.Bd3 Bg4 10.h3 Bxf3 11.Qxf3 Nc6 12.O-O Nd7 13.Bd2 a6 14.Kh1 b5 15.cxb5 Nd4 16.Qd1 axb5 17.Bxb5 Nxb5 18.Nxb5 Bxb2 19.Rb1 Bg7 20.Nxd6 Rxa2 21.Be3 Qa8 22.Rb7 Nf6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.13"] [EventDate "?"] [Round "3"] [Result "1/2-1/2"] [White "Yasser Seirawan"] [Black "Peter Biyiasas"] [ECO "A16"] [WhiteElo "2510"] [BlackElo "2485"] [PlyCount "53"] 1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.d3 d6 6.Rb1 a5 7.a3 Nc6 8.b4 axb4 9.axb4 e5 10.Nf3 Re8 11.Nd2 Nd4 12.O-O c6 13.Bb2 d5 14.h3 h5 15.Kh1 Nf5 16.Ra1 Rxa1 17.Qxa1 Bh6 18.Bc1 Bg7 19.Qa7 Nd4 20.Bb2 dxc4 21.Nxc4 Nxe2 22.Nxe2 Qxd3 23.Nb6 Qxe2 24.Nxc8 Qxb2 25.Qxb7 e4 26.Nd6 Rf8 27.Nxe4 1/2-1/2 [Event "Ch USA"] [Site "Greenville, PA USA"] [Date "1980.06.13"] [EventDate "?"] [Round "3"] [Result "0-1"] [White "Mark Diesen"] [Black "Leonid Shamkovich"] [ECO "B56"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "50"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.f3 e6 7.Be3 a6 8.g4 h6 9.g5 hxg5 10.Bxg5 Be7 11.Qd2 Nxe4 12.Nxe4 Bxg5 13.Nxg5 Nxd4 14.Qxd4 Qxg5 15.Qxd6 Qh4+ 16.Kd2 Bd7 17.Rd1 Bc6 18.Ke3 Qf6 19.Be2 Qxb2 20.Rd4 Rh5 21.Rhd1 Qc3+ 22.Kf2 Qc5 23.Qc7 Rd5 24.c3 Rad8 25.Kg2 Rxd4 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.15"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Larry Mark Christiansen"] [ECO "E14"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "36"] 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 Be7 6.Nc3 d5 7.Qa4+ c6 8.cxd5 exd5 9.O-O O-O 10.Qc2 c5 11.b3 Nc6 12.a3 Re8 13.Bb2 h6 14.Rad1 cxd4 15.exd4 Bd6 16.Rfe1 Rxe1+ 17.Rxe1 Rc8 18.Qd1 Qf8 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.15"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Leonid Alexandrovich Shamkovich"] [Black "Vitaly F Zaltsman"] [ECO "B67"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "91"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f3 Nxd4 10.Qxd4 Be7 11.h4 Bc6 12.Kb1 O-O 13.Bd3 b5 14.Qf2 Qc7 15.Rhe1 Rac8 16.g4 b4 17.Ne2 a5 18.Nd4 Ba8 19.Be3 Nd7 20.Nb5 Qb8 21.Bf1 Ne5 22.Bg5 f6 23.Be3 f5 24.gxf5 exf5 25.Bg5 Bxg5 26.hxg5 Rcd8 27.exf5 Bxf3 28.Rd2 Rxf5 29.Nd4 Rf7 30.Qg3 Bd5 31.b3 Rdf8 32.Bg2 Bxg2 33.Qxg2 Qa8 34.Qxa8 Rxa8 35.Red1 Ra6 36.Ne6 Rd7 37.Rd5 Kf7 38.Nf4 Ng6 39.Nd3 Rc6 40.Nc5 Re7 41.Rf1+ Ke8 42.Nd3 Ne5 43.Rxa5 Nxd3 44.Ra8+ Kd7 45.cxd3 Rc5 46.d4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.15"] [EventDate "?"] [Round "4"] [Result "0-1"] [White "John A Peters"] [Black "Larry Melvyn Evans"] [ECO "B90"] [WhiteElo "2465"] [BlackElo "2520"] [PlyCount "112"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.a4 g6 7.Be2 Bg7 8.O-O Nc6 9.Be3 O-O 10.Nb3 Be6 11.f4 Na5 12.f5 Bc4 13.Bd3 Rc8 14.Nd2 Bxd3 15.cxd3 d5 16.Nf3 dxe4 17.dxe4 Nc4 18.Bd4 Ng4 19.Nd5 Bxd4+ 20.Qxd4 e6 21.h3 exd5 22.hxg4 dxe4 23.Qxe4 Qb6+ 24.Kh1 Rfe8 25.Qf4 Qe3 26.Qh2 Ne5 27.Qh4 Nxf3 28.Rxf3 Rc1+ 29.Rf1 Rxa1 30.Rxa1 Qf4 31.Re1 Rxe1+ 32.Qxe1 Qxg4 33.fxg6 hxg6 34.Qe8+ Kg7 35.Qe5+ Kh7 36.Qc7 Qd1+ 37.Kh2 Qd5 38.a5 g5 39.Qe7 Kg6 40.b4 Kf5 41.Kg1 Kf4 42.Kh2 Kf5 43.Kg1 f6 44.Kf2 Qd4+ 45.Kf1 Qf4+ 46.Kg1 Qe4 47.Qh7+ Kf4 48.Qh2+ Ke3 49.Qd6 f5 50.Qd1 g4 51.Qb3+ Kd4 52.Qb2+ Kc4 53.Kh2 Kb5 54.Qd2 f4 55.Qd7+ Kxb4 56.Qxg4 Kxa5 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.15"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "Yasser Seirawan"] [ECO "B18"] [WhiteElo "2530"] [BlackElo "2510"] [PlyCount "70"] 1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 Qc7 11.Bd2 e6 12.O-O-O Ngf6 13.Ne4 O-O-O 14.g3 Nxe4 15.Qxe4 Bd6 16.c4 c5 17.Bc3 Nf6 18.Qe2 cxd4 19.Bxd4 Bc5 20.Bxc5 Qxc5 21.Ne5 Qc7 22.f4 Rxd1+ 23.Rxd1 Rd8 24.Qf3 Rxd1+ 25.Kxd1 Qd6+ 26.Kc2 Qd4 27.g4 Ne4 28.Qd3 Qf2+ 29.Kd1 Qg1+ 30.Kc2 Qf2+ 31.Kd1 Nc5 32.Qd6 Qf1+ 33.Kc2 Qe2+ 34.Kc1 Qf1+ 35.Kc2 Qe2+ 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.15"] [EventDate "?"] [Round "4"] [Result "1-0"] [White "Pal Benko"] [Black "Joseph M Bradford"] [ECO "D46"] [WhiteElo "2485"] [BlackElo "2305"] [PlyCount "59"] 1.Nf3 d5 2.d4 Nf6 3.c4 e6 4.Nc3 c6 5.e3 Nbd7 6.Bd3 Be7 7.O-O O-O 8.b3 b6 9.Bb2 Bb7 10.Qe2 Re8 11.Rfd1 Qc7 12.Rac1 Rad8 13.Ne5 Qb8 14.f4 Nf8 15.a3 dxc4 16.Bxc4 Nd5 17.Bd3 Rc8 18.b4 c5 19.dxc5 bxc5 20.Nxd5 Bxd5 21.Qh5 g6 22.Ng4 f6 23.Bxf6 Bxf6 24.Nxf6+ Kf7 25.Qh4 cxb4 26.Nxe8 Kxe8 27.axb4 Rxc1 28.Rxc1 Qxb4 29.Qf6 Qb6 30.Bb5+ 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.15"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "Anatoly Lein"] [ECO "D15"] [WhiteElo "2540"] [BlackElo "2520"] [PlyCount "26"] 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 g6 5.e3 Bg7 6.b4 O-O 7.Qb3 Bg4 8.Ne5 Be6 9.Bb2 Nbd7 10.Nxd7 Qxd7 11.Rd1 Rad8 12.Be2 dxc4 13.Bxc4 Bxc4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.16"] [EventDate "?"] [Round "5"] [Result "1/2-1/2"] [White "Larry Mark Christiansen"] [Black "Pal Benko"] [ECO "A29"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "28"] 1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Nd5 e4 6.Nh4 Bc5 7.Bg2 d6 8.O-O Be6 9.d3 Nxd5 10.cxd5 Bxd5 11.dxe4 Be6 12.Bd2 O-O 13.Bc3 Qd7 14.Qd2 a5 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.16"] [EventDate "?"] [Round "5"] [Result "0-1"] [White "Larry Melvyn Evans"] [Black "Leonid Alexandrovich Shamkovich"] [ECO "B83"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "90"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.f4 Nc6 7.Be2 Be7 8.Be3 O-O 9.O-O Bd7 10.Qe1 Nxd4 11.Bxd4 Bc6 12.Qg3 g6 13.Bd3 Nh5 14.Qf2 Nxf4 15.Qxf4 e5 16.Qf2 exd4 17.Qxd4 Qa5 18.Nd5 Bxd5 19.Qxd5 Qxd5 20.exd5 f5 21.b3 Bf6 22.Rae1 Bd4+ 23.Kh1 Be5 24.c4 b6 25.Re2 Kg7 26.Rf3 h5 27.Kg1 a5 28.a4 h4 29.h3 Rae8 30.Kf1 Bd4 31.Rxe8 Rxe8 32.Be2 Be3 33.Ke1 Kf6 34.Kd1 Bg5 35.Rd3 Be3 36.Ke1 Kg5 37.Kf1 Kf4 38.Bf3 g5 39.Bh5 Re7 40.Rd1 g4 41.hxg4 fxg4 42.Bg6 Kg3 43.Re1 h3 44.gxh3 gxh3 45.Re2 Re5 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.16"] [EventDate "?"] [Round "5"] [Result "1/2-1/2"] [White "Vitaly F Zaltsman"] [Black "Peter Biyiasas"] [ECO "E98"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "112"] 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Nd3 f5 11.Bd2 Nf6 12.f3 c5 13.Rb1 f4 14.b4 b6 15.a4 g5 16.a5 Ng6 17.Nf2 h5 18.h3 Rf7 19.Nb5 Bf8 20.axb6 axb6 21.Ra1 Rxa1 22.Qxa1 Nh4 23.bxc5 bxc5 24.Qa5 Qe7 25.Qa8 Bd7 26.Ba5 Qe8 27.Qxe8 Nxe8 28.Ra1 Ng6 29.Nd1 Rg7 30.Bb6 Ne7 31.Ra8 Ng6 32.Rd8 Nh8 33.Kf1 Re7 34.Nf2 Nf7 35.Ra8 Nf6 36.Ra6 Bc8 37.Ra8 Bd7 38.Ra5 Re8 39.Ra6 Rb8 40.Ra7 Be7 41.Bc7 Rc8 42.Nd1 Bd8 43.Ndc3 Bxc7 44.Nxc7 g4 45.hxg4 hxg4 46.fxg4 Rb8 47.N7b5 Bxg4 48.Bf3 Bc8 49.Ke2 Bd7 50.Kd3 Kg7 51.Nc7 Kg6 52.N3b5 Rb6 53.Na8 Rb8 54.Nac7 Rb6 55.Na8 Rb8 56.Nac7 Rb6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.16"] [EventDate "?"] [Round "5"] [Result "0-1"] [White "Yasser Seirawan"] [Black "Walter Shawn Browne"] [ECO "A30"] [WhiteElo "2555"] [BlackElo "?"] [PlyCount "104"] 1.Nf3 Nf6 2.c4 b6 3.g3 c5 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7 11.Bb2 O-O 12.Qe3 Qc7 13.Nd4 Bxg2 14.Kxg2 Ne5 15.f3 Qb7 16.Rd2 Rfc8 17.h3 Rc7 18.a4 Nfd7 19.Nb1 Bf6 20.Na3 h5 21.Rb1 h4 22. Ndc2 Be7 23.gxh4 Ng6 24.h5 Nh4+ 25.Kh1 Nf5 26.Qg1 Nf6 27.Nd4 Nh6 28.Nxe6 fxe6 29.Qg6 Kh8 30.Rg1 Rg8 31.Rxd6 Bxd6 32.Bxf6 Bf4 33.Bc3 e5 34.Nc2 Qc8 35.Kg2 Nf5 36.Kf2 Rc6 37.Qg4 Rc5 38.e3 Bh6 39.e4 Ne7 40.Nb4 Qd8 41.Qe6 a5 42.Nd5 Nxd5 43.exd5 Qh4+ 44.Kg2 Be3 45.Rf1 Bf4 46.Qg4 Qf6 47.Kf2 Rd8 48. Rd1 Rc7 49.Ke2 Rf7 50.Kd3 Qd6 51.Re1 Rdf8 52.Kc2 Rf5 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.16"] [EventDate "?"] [Round "5"] [Result "1-0"] [White "Joseph M Bradford"] [Black "John A Peters"] [ECO "D38"] [WhiteElo "2305"] [BlackElo "2465"] [PlyCount "75"] 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.g3 dxc4 6.Bg2 O-O 7.O-O Nc6 8.Re1 Nd5 9.Qc2 Be7 10.Ne4 b5 11.Neg5 f5 12.a3 h6 13.Nh3 Nf6 14.a4 Nb4 15.Qd1 Bb7 16.Nf4 Bd5 17.axb5 Bd6 18.Ne5 Qb8 19.f3 Qb6 20.Nfg6 Rfd8 21.e4 Bb7 22.Nxc4 Qxb5 23.Bf1 Bc5 24.Be3 Qe8 25.Qb3 Rxd4 26.Ra5 Bb6 27.Nxb6 cxb6 28.Bxd4 bxa5 29.exf5 Bd5 30.Qc3 Na2 31.Qxa5 Qd8 32.Qxd8+ Rxd8 33.Bxf6 gxf6 34.fxe6 Nb4 35.Bb5 Rb8 36.e7 Bf7 37.e8=Q+ Bxe8 38.Rxe8+ 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.16"] [EventDate "?"] [Round "5"] [Result "1/2-1/2"] [White "Anatoly Lein"] [Black "Arthur Bisguier"] [ECO "A28"] [WhiteElo "2520"] [BlackElo "2455"] [PlyCount "35"] 1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.d3 d5 5.cxd5 Nxd5 6.g3 Be7 7.Bg2 Be6 8.O-O O-O 9.a3 Qd7 10.Bd2 f5 11.b4 a6 12.Rc1 h6 13.Qc2 Nb6 14.Be3 Nd5 15.Bc5 Bxc5 16.bxc5 f4 17.Rb1 Rab8 18.Rb2 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.18"] [EventDate "?"] [Round "6"] [Result "1-0"] [White "Joseph M Bradford"] [Black "Larry Mark Christiansen"] [ECO "A04"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "123"] 1.Nf3 g6 2.d4 Bg7 3.g3 c5 4.d5 Nf6 5.Bg2 O-O 6.c4 d6 7.Nc3 e6 8.O-O exd5 9.cxd5 Qe7 10.Nd2 b6 11.a4 Ba6 12.Nb5 Nbd7 13.Re1 Ne8 14.Ne4 h6 15.Qb3 f5 16.Nec3 Ne5 17.Bd2 g5 18.f4 gxf4 19.Bxf4 Bxb5 20.axb5 Nf6 21.Qc2 Nh5 22.e3 Rae8 23.Kh1 Ng4 24.Qd2 Be5 25.Bf3 Qg7 26.Ra4 Kh8 27.Rea1 Rf7 28.Bxg4 fxg4 29.Ne4 Qg6 30.Nf2 Nf6 31.Kg2 Bxf4 32.Rxf4 Ref8 33.Rf1 Nh5 34.Rxf7 Qxf7 35.Qd1 Qf3+ 36.Qxf3 gxf3 37.Kg1 Nf6 38.Ra1 Nxd5 39.e4 Nc7 40.Rxa7 Nxb5 41.Rb7 Ra8 42.Ng4 Ra7 43.Rxb6 Nd4 44.Rxd6 Rb7 45.Rxh6+ Kg7 46.Rh5 Rxb2 47.Rg5+ Kf8 48.Rxc5 Rg2+ 49.Kf1 Ke7 50.Re5+ Kf7 51.Rd5 Rd2 52.h4 Kg6 53.h5+ Kf7 54.Nf2 Kg7 55.g4 Kh6 56.e5 Nb3 57.Rd6+ Kg7 58.g5 Re2 59.h6+ Kh7 60.Rd7+ Kg6 61.h7+ Nd2+ 62.Rxd2 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.18"] [EventDate "?"] [Round "6"] [Result "0-1"] [White "Peter Biyiasas"] [Black "Larry Melvyn Evans"] [ECO "A07"] [WhiteElo "2485"] [BlackElo "2520"] [PlyCount "58"] 1.e4 c5 2.Nf3 Nc6 3.Nc3 g6 4.g3 Bg7 5.Bg2 e6 6.O-O Nge7 7.d3 O-O 8.Be3 Nd4 9.Ne2 Nec6 10.c3 Nxf3+ 11.Bxf3 b6 12.d4 Ba6 13.Re1 Qf6 14.Bg2 Bxe2 15.Rxe2 cxd4 16.cxd4 Nxd4 17.Rd2 Nc6 18.Rc1 Rac8 19.Rxd7 Qxb2 20.Rc2 Qa3 21.h4 h5 22.Bg5 Ne5 23.Be7 Qa4 24.Rdd2 Rfe8 25.Rxc8 Qxd1+ 26.Rxd1 Rxc8 27.Bf1 Rc2 28.a4 Nf3+ 29.Kg2 Bd4 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.18"] [EventDate "?"] [Round "6"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "Anatoly Lein"] [ECO "E17"] [WhiteElo "2485"] [BlackElo "2520"] [PlyCount "27"] 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 Ne4 7.Bd2 Nxd2 8.Qxd2 d6 9.O-O Nd7 10.d5 e5 11.e4 g6 12.Ne1 h5 13.Nd3 h4 14.b4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.18"] [EventDate "?"] [Round "6"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Yasser Seirawan"] [ECO "E14"] [WhiteElo "2455"] [BlackElo "2510"] [PlyCount "51"] 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c5 6.O-O Be7 7.Nc3 cxd4 8.exd4 d5 9.cxd5 Nxd5 10.Bb5+ Bc6 11.Qa4 Qd7 12.Bxc6 Nxc6 13.Nxd5 Qxd5 14.Be3 O-O 15.Rfc1 b5 16.Qb3 Nb4 17.Qxd5 Nxd5 18.Kf1 Rfc8 19.Ke2 f6 20.Rxc8+ Rxc8 21.Rc1 Rxc1 22.Bxc1 Kf7 23.Ne1 Ke8 24.Nc2 Kd7 25.Bd2 Kc6 26.Kd3 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.18"] [EventDate "?"] [Round "6"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "Vitaly F Zaltsman"] [ECO "E41"] [WhiteElo "2530"] [BlackElo "2460"] [PlyCount "46"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nge2 cxd4 7.exd4 d5 8.O-O dxc4 9.Bxc4 O-O 10.Be3 a6 11.a3 Be7 12.Rc1 Bd7 13.Ba2 Rc8 14.Nf4 e5 15.dxe5 Nxe5 16.Ncd5 Nxd5 17.Nxd5 Bd6 18.Rxc8 Bxc8 19.Bf4 Ng6 20.Bxd6 Qxd6 21.Ne3 Qe5 22.Qd2 Nf4 23.Rd1 Be6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.18"] [EventDate "?"] [Round "6"] [Result "1-0"] [White "John A Peters"] [Black "Leonid Alexandrovich Shamkovich"] [ECO "B13"] [WhiteElo "2465"] [BlackElo "2515"] [PlyCount "111"] 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 g6 6.Bf4 Bg7 7.Nd2 Nf6 8.Ngf3 Nh5 9.Be3 O-O 10.O-O Qd6 11.Re1 e6 12.Nb3 b6 13.Qd2 Bd7 14.Bh6 Bxh6 15.Qxh6 f6 16.Rad1 Qf4 17.Qxf4 Nxf4 18.Bf1 Kf7 19.Na1 Na5 20.Nc2 g5 21.Ne3 Rac8 22.Rc1 b5 23.Nd2 Rc7 24.g3 Ng6 25.b4 Nb7 26.Nb3 Ne7 27.f4 gxf4 28.gxf4 Nd6 29.Nc5 Bc8 30.Kf2 f5 31.Ng2 Rg8 32.Re3 Kf6 33.Rh3 Ng6 34.Re1 a6 35.a4 bxa4 36.Ra1 Ne4+ 37.Nxe4+ dxe4 38.Rxa4 Rc6 39.c4 Rd8 40.Ke3 Rcd6 41.Rxh7 Rxd4 42.b5 Nf8 43.Rc7 R4d7 44.Rxd7 Rxd7 45.bxa6 Ra7 46.c5 Nd7 47.Kd4 Nb8 48.Ne3 Nxa6 49.Bxa6 Rxa6 50.Rxa6 Bxa6 51.c6 Ke7 52.Ke5 Bb5 53.c7 Bd7 54.Nc4 Kf7 55.Kd4 Ke7 56.Nb6 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.19"] [EventDate "?"] [Round "7"] [Result "1-0"] [White "Larry Mark Christiansen"] [Black "John A Peters"] [ECO "B31"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "91"] 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 a6 6.Bxc6 dxc6 7.d4 cxd4 8.cxd4 Bg4 9.Nc3 Nf6 10.Be3 O-O 11.h3 Bxf3 12.Qxf3 Nd7 13.Qe2 Qa5 14.Rac1 Rac8 15.a3 f5 16.Qc4+ Kh8 17.Qe6 Qd8 18.Bg5 fxe4 19.Nxe4 Nf6 20.Bxf6 exf6 21.Nc5 Qxd4 22.Qb3 Qd5 23.Qb6 f5 24.Rfd1 Bd4 25.Qb4 Bxc5 26.Qc3+ Bd4 27.Rxd4 Qe5 28.Re1 Qg7 29.Qd2 Qf6 30.Rd6 Rcd8 31.Ree6 Rxd6 32.Qxd6 Qg7 33.Re7 Qf6 34.Qc7 Qxb2 35.Rxh7+ Kg8 36.Re7 Qf6 37.Qxb7 Rd8 38.f4 Qd4+ 39.Kh1 Qa1+ 40.Kh2 Qd4 41.Qb3+ Rd5 42.Qg3 Kf8 43.Qh4 c5 44.Re6 Rd7 45.Rxg6 Rf7 46.Rxa6 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.19"] [EventDate "?"] [Round "7"] [Result "0-1"] [White "Vitaly F Zaltsman"] [Black "Walter Shawn Browne"] [ECO "A30"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "70"] 1.c4 c5 2.Nc3 Nf6 3.g3 e6 4.Nf3 b6 5.Bg2 Bb7 6.O-O Be7 7.d4 cxd4 8.Qxd4 d6 9.b3 Nbd7 10.Bb2 O-O 11.e4 a6 12.Qe3 Rc8 13.Nd4 Qc7 14.Rae1 Qb8 15.Kh1 Rfe8 16.Qd2 Qa8 17.Re2 Nc5 18.Rfe1 Bf8 19.Qd1 g6 20.h3 Bg7 21.Kh2 Red8 22.Kg1 d5 23.cxd5 exd5 24.e5 Nfe4 25.Re3 Bxe5 26.b4 Bxd4 27.Qxd4 Ne6 28.Qxb6 Rd6 29.Qa5 Nd2 30.b5 Nc4 31.Qb4 a5 32.Qb3 Nxe3 33.Rxe3 Nc5 34.Qd1 d4 35.Bxb7 Qxb7 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.19"] [EventDate "?"] [Round "7"] [Result "1-0"] [White "Larry Melvyn Evans"] [Black "Robert Eugene Byrne"] [ECO "E98"] [WhiteElo "2520"] [BlackElo "2530"] [PlyCount "85"] 1.c4 g6 2.d4 Nf6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Nd3 f5 11.Bd2 fxe4 12.Nxe4 Nf5 13.f3 Nf6 14.Ndf2 h6 15.Re1 g5 16.Rc1 Kh8 17.Bf1 a5 18.b3 b6 19.a3 Bd7 20.Bc3 Nh4 21.b4 axb4 22.axb4 Nh5 23.c5 dxc5 24.bxc5 Ba4 25.Qd2 Nf4 26.cxb6 cxb6 27.d6 Nf5 28.Qb2 Nd4 29.Ng4 Nd5 30.Nxe5 Nxc3 31.Ng6+ Kh7 32.Nxf8+ Qxf8 33.Rxc3 Bc6 34.Qxb6 Bxe4 35.Rxe4 Ne2+ 36.Rxe2 Bxc3 37.d7 Bb4 38.Re5 Bd6 39.Qb7 Rd8 40.Qe4+ Kg7 41.Bd3 Bc5+ 42.Kf1 Qd6 43.Qh7+ 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.19"] [EventDate "?"] [Round "7"] [Result "1/2-1/2"] [White "Yasser Seirawan"] [Black "Pal Benko"] [ECO "A22"] [WhiteElo "2510"] [BlackElo "2485"] [PlyCount "81"] 1.c4 e5 2.Nc3 Nf6 3.e3 Nc6 4.a3 d5 5.cxd5 Nxd5 6.Qc2 Be6 7.Nf3 a6 8.d3 Be7 9.Ne4 O-O 10.Nc5 Bc8 11.Bd2 b6 12.Na4 Bb7 13.Be2 f5 14.O-O Bf6 15.Rac1 Kh8 16.Kh1 Qe8 17.Nc3 Nde7 18.b4 Rd8 19.b5 axb5 20.Nxb5 Rd7 21.a4 Qg6 22.Qa2 e4 23.dxe4 fxe4 24.Ng1 Rfd8 25.Be1 Nd5 26.Nh3 Be5 27.Rc4 Nce7 28.Rc1 Nf5 29.g3 Qe6 30.Ng1 Qf6 31.Na3 Bc3 32.Qb3 Bxe1 33.Rfxe1 c5 34.Bb5 Bc6 35.Bxc6 Qxc6 36.Ne2 Qf6 37.Nc4 Nfe7 38.Kg1 Nb4 39.Nf4 g5 40.Nh5 Rd3 41.Qxb4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.19"] [EventDate "?"] [Round "7"] [Result "1/2-1/2"] [White "Anatoly Lein"] [Black "Joseph M Bradford"] [ECO "A56"] [WhiteElo "2520"] [BlackElo "2305"] [PlyCount "43"] 1.d4 Nf6 2.c4 c5 3.e3 g6 4.Nc3 Bg7 5.Nf3 O-O 6.dxc5 Na6 7.Be2 Nxc5 8.O-O b6 9.Nd4 Bb7 10.b4 Nce4 11.Nxe4 Nxe4 12.Bb2 d5 13.Rc1 dxc4 14.Bxc4 Rc8 15.Qe2 e5 16.Nf3 Qe7 17.a3 Rfd8 18.Ba6 Rxc1 19.Rxc1 Bxa6 20.Qxa6 Nd6 21.h3 f6 22.Qe2 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.19"] [EventDate "?"] [Round "7"] [Result "1/2-1/2"] [White "Leonid Alexandrovich Shamkovich"] [Black "Peter Biyiasas"] [ECO "E80"] [WhiteElo "2515"] [BlackElo "2485"] [PlyCount "105"] 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 Nbd7 6.Be3 e5 7.d5 Ng8 8.h4 f5 9.exf5 gxf5 10.Qd2 Ndf6 11.h5 f4 12.Bf2 Nh6 13.Bd3 Bf5 14.Nge2 O-O 15.O-O-O Kh8 16.g4 fxg3 17.Nxg3 Bxd3 18.Qxd3 Qd7 19.Be3 a6 20.Qd2 Nfg8 21.Nge4 Nf5 22.h6 Bf6 23.Bg5 Bxg5 24.Nxg5 Nd4 25.Qg2 Rf6 26.f4 Rg6 27.fxe5 dxe5 28.Nce4 Rf8 29.Rdf1 Qe7 30.Rxf8 Qxf8 31.Qh2 Nxh6 32.Qxe5+ Qg7 33.Qe8+ Qg8 34.Qe5+ Qg7 35.Qe8+ Qg8 36.Qe7 Qg7 37.Qd8+ Qg8 38.Qxg8+ Kxg8 39.Kd2 Nhf5 40.Nxh7 Rg2+ 41.Kd3 Rxb2 42.Nhf6+ Kf7 43.Rh7+ Kg6 44.Rxc7 Rxa2 45.Nc3 Rg2 46.Nce4 Ra2 47.Rxb7 Ra3+ 48.Kd2 Ne3 49.Rc7 Nf3+ 50.Ke2 Nd4+ 51.Kd2 Nf3+ 52.Ke2 Nd4+ 53.Kd2 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.21"] [EventDate "?"] [Round "8"] [Result "1/2-1/2"] [White "Larry Mark Christiansen"] [Black "Anatoly Lein"] [ECO "B42"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "101"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Ne7 6.O-O Nec6 7.c3 Be7 8.Be3 d6 9.Nd2 Nd7 10.a4 O-O 11.Qe2 Nde5 12.Bc2 Bd7 13.Nxc6 Bxc6 14.f4 Nd7 15.b4 b6 16.Nc4 d5 17.exd5 Bxd5 18.Bd4 Bf6 19.Ne5 a5 20.Rab1 g6 21.Qe3 Nxe5 22.fxe5 Bg5 23.Qf2 Qc7 24.bxa5 bxa5 25.h4 Bh6 26.h5 Rab8 27.Bd3 Rxb1 28.Rxb1 Rb8 29.Rf1 Bg7 30.Bb5 gxh5 31.Qh4 h6 32.Rf4 Qb7 33.Qxh5 Be4 34.Qe2 Bg6 35.Bc5 Rd8 36.Rd4 Rd5 37.Rxd5 Qxd5 38.Bd4 Qb3 39.Qf3 Qb1+ 40.Qf1 Qc2 41.Qe2 Qc1+ 42.Qf1 Qg5 43.Qe1 h5 44.Bc6 h4 45.c4 Qf4 46.Qc3 Bf8 47.c5 Be7 48.Bf3 Bd8 49.Qe3 Qf5 50.c6 Bc7 51.Be2 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.21"] [EventDate "?"] [Round "8"] [Result "0-1"] [White "Arthur Bisguier"] [Black "Vitaly F Zaltsman"] [ECO "A46"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "110"] 1.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.O-O d5 6.Nbd2 Bd6 7.Ne5 O-O 8.b3 Ne4 9.Bb2 f6 10.Nef3 Nd7 11.Re1 Qe7 12.c4 f5 13.Bf1 g5 14.Nxe4 fxe4 15.Ne5 Rf5 16.Nxd7 Qxd7 17.Rc1 c6 18.Rc2 Raf8 19.g3 Qf7 20.Bh3 Rf3 21.Bg4 Qg6 22.Bxf3 exf3 23.e4 dxe4 24.Kh1 Qf5 25.Re3 Rf6 26.Rc1 Rh6 27.Qg1 Rh3 28.Rce1 c5 29.Rd1 Bc6 30.dxc5 Bxc5 31.Rd8+ Kf7 32.Rc8 Bxe3 33.Rxc6 Bc5 34.Rc7+ Kg6 35.b4 Bxf2 36.g4 Bxg1 37.gxf5 Kxf5 38.Kxg1 e3 39.Rxa7 Ke4 40.Re7 f2 41.Kf1 Rxh2 42.Ke2 f1=Q+ 43.Kxf1 Rxb2 44.Rxe6+ Kd3 45.Rd6+ Kxc4 46.Rc6+ Kd5 47.Rxb6 g4 48.Rb5+ Ke4 49.Rg5 Kf4 50.Rg7 g3 51.Rf7+ Ke4+ 52.Rxh7 Rf2+ 53.Ke1 g2 54.Re7+ Kd3 55.Rd7+ Kc4 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.21"] [EventDate "?"] [Round "8"] [Result "0-1"] [White "Joseph M Bradford"] [Black "Yasser Seirawan"] [ECO "B06"] [WhiteElo "2305"] [BlackElo "2510"] [PlyCount "64"] 1.e4 g6 2.d4 d6 3.Nc3 a6 4.Qf3 Bg7 5.Be3 Nc6 6.Bc4 e6 7.Rd1 Nf6 8.Nge2 O-O 9.O-O e5 10.Nd5 Ng4 11.c3 exd4 12.cxd4 Nce5 13.dxe5 Nxe5 14.Qg3 Nxc4 15.Bg5 f6 16.Bc1 Na5 17.Nef4 Nc6 18.Rfe1 Rf7 19.h4 Ne5 20.Be3 f5 21.Nh3 h6 22.h5 gxh5 23.Bxh6 h4 24.Qg5 Qxg5 25.Bxg5 fxe4 26.Nhf4 Bg4 27.Rd2 h3 28.Rxe4 hxg2 29.Ng6 Nxg6 30.Rxg4 Ne5 31.Rxg2 Nf3+ 32.Kf1 Nxd2+ 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.21"] [EventDate "?"] [Round "8"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "Larry Melvyn Evans"] [ECO "E63"] [WhiteElo "2540"] [BlackElo "2520"] [PlyCount "34"] 1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Bg2 d6 6.Nc3 Nc6 7.O-O a6 8.d5 Na5 9.Nd2 c5 10.Qc2 Rb8 11.b3 b5 12.Bb2 e5 13.e4 bxc4 14.bxc4 Bh6 15.f4 exf4 16.gxf4 Nh5 17.Ne2 Bg4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.21"] [EventDate "?"] [Round "8"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "Leonid Alexandrovich Shamkovich"] [ECO "B18"] [WhiteElo "2530"] [BlackElo "2515"] [PlyCount "81"] 1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 Ngf6 11.Bd2 e6 12.O-O-O Bd6 13.Ne4 Nxe4 14.Qxe4 Nf6 15.Qe2 Qc7 16.Kb1 b5 17.Ne5 Bxe5 18.dxe5 Nd5 19.g4 Rb8 20.g5 hxg5 21.Bxg5 b4 22.f4 Qa5 23.Qf3 Qc7 24.f5 exf5 25.Qxf5 Qc8 26.e6 O-O 27.Rde1 fxe6 28.Qg6 Qe8 29.Rxe6 Qxg6 30.Rxg6 Kh7 31.Rxc6 Rf5 32.Bc1 a5 33.h6 g5 34.Rd6 Rb7 35.Rd1 Nf4 36.b3 Rbf7 37.Kb2 R5f6 38.a3 Kxh6 39.axb4 axb4 40.Rxf6+ Rxf6 41.Rd4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.21"] [EventDate "?"] [Round "8"] [Result "1-0"] [White "John A Peters"] [Black "Peter Biyiasas"] [ECO "C92"] [WhiteElo "2465"] [BlackElo "2485"] [PlyCount "173"] 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.h3 Bb7 10.d4 Re8 11.Nbd2 Bf8 12.Bc2 g6 13.a4 Bg7 14.d5 Nb8 15.Bd3 bxa4 16.Bc2 Nbd7 17.Bxa4 Rf8 18.Nc4 Nh5 19.Na5 Bc8 20.Be3 Nb6 21.Bc6 Rb8 22.Ra3 Nf4 23.c4 f5 24.Bxf4 exf4 25.e5 dxe5 26.Nxe5 Bxe5 27.Rxe5 Nd7 28.Bxd7 Bxd7 29.d6 cxd6 30.Qxd6 Be8 31.Qxd8 Rxd8 32.Ra1 Rd2 33.Rae1 Bf7 34.R5e2 Rfd8 35.f3 Kg7 36.Kf2 Kf6 37.Rc1 Rd1 38.Rxd1 Rxd1 39.Rc2 Be8 40.Ke2 Ra1 41.Nb3 Rg1 42.Kf2 Rb1 43.Nc5 a5 44.Re2 Bf7 45.Rc2 Ke7 46.Ke2 g5 47.Kd3 g4 48.Re2+ Kf6 49.Nd7+ Kg5 50.Ne5 Be8 51.Kc2 Ra1 52.hxg4 fxg4 53.Nxg4 Bg6+ 54.Kc3 Rc1+ 55.Kd4 Kh4 56.Ne5 Bf5 57.c5 Kg3 58.c6 h5 59.Nc4 Rd1+ 60.Kc5 Bd3 61.b3 Bxe2 62.c7 a4 63.c8=Q axb3 64.Qg8+ Kf2 65.Nb2 Rd2 66.Qxb3 Kxg2 67.Qc3 Rd7 68.Qe5 Rd2 69.Na4 Rc2+ 70.Nc3 Bxf3 71.Kd4 Rb2 72.Kd3 Rf2 73.Qg5+ Bg4 74.Nd5 f3 75.Nf4+ Kh2 76.Qh4+ Kg1 77.Qg3+ Kf1 78.Nd5 Bf5+ 79.Ke3 Re2+ 80.Kf4 h4 81.Qg7 Be6 82.Ne3+ Kf2 83.Qf6 h3 84.Qh4+ Kg1 85.Qg3+ Rg2 86.Qe1+ Kh2 87.Nf1+ 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.22"] [EventDate "?"] [Round "9"] [Result "1-0"] [White "Larry Melvyn Evans"] [Black "Arthur Bisguier"] [ECO "A28"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "125"] 1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.a3 d5 5.cxd5 Nxd5 6.Qc2 Nde7 7.e3 g6 8.b4 Bg7 9.Bb2 O-O 10.Be2 a6 11.O-O b6 12.Rac1 Bb7 13.Rfd1 h6 14.b5 axb5 15.Nxb5 Nf5 16.d4 exd4 17.exd4 Rc8 18.d5 Nce7 19.Bxg7 Kxg7 20.Na7 Ra8 21.Nc6 Bxc6 22.dxc6 Nd6 23.Qc3+ Kh7 24.Ne5 Ng8 25.Bc4 Qe7 26.Re1 Qg5 27.g3 h5 28.Re3 b5 29.Bf1 Rfe8 30.Rce1 Qf6 31.Qc5 Nh6 32.Nd7 Qh8 33.Rxe8 Rxe8 34.Rxe8 Nxe8 35.Qe7 Nd6 36.Nf6+ Kg7 37.Nd5 Nhf5 38.Qe5+ Kh7 39.Qxh8+ Kxh8 40.Nxc7 Nd4 41.f4 Kg7 42.Kf2 Kf8 43.Bd3 Ke7 44.Ke3 Nxc6 45.Nxb5 Nc8 46.Be4 Na5 47.Kd4 Nb3+ 48.Kc3 Nc5 49.Bc2 h4 50.a4 hxg3 51.hxg3 Nb6 52.a5 Nbd7 53.Kc4 Na6 54.Nc3 f5 55.Ba4 Ndc5 56.Bb5 Kd6 57.Bxa6 Nxa6 58.Kb5 Nb8 59.a6 Nxa6 60.Kxa6 Kc5 61.Kb7 Kd4 62.Kc6 Ke3 63.Nd5+ 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.22"] [EventDate "?"] [Round "9"] [Result "0-1"] [White "Yasser Seirawan"] [Black "Larry Mark Christiansen"] [ECO "A17"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "64"] 1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 O-O 5.a3 Bxc3 6.Qxc3 b6 7.b3 Bb7 8.Bb2 d6 9.e3 Nbd7 10.Be2 e5 11.d4 Ne4 12.Qc2 Qe7 13.Rd1 Rad8 14.Ba1 Rfe8 15.O-O a5 16.Rfe1 h6 17.Bd3 f5 18.c5 bxc5 19.dxe5 Kh8 20.exd6 cxd6 21.Bf1 Qf7 22.Qb2 Ndf6 23.Nd2 Bd5 24.Nxe4 Rxe4 25.Rd3 Rg4 26.Qd2 Bf3 27.g3 Ne4 28.Qxa5 Rf8 29.Qa6 Qg6 30.Red1 f4 31.Rxd6 fxg3 32.Bxg7+ Kh7 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.22"] [EventDate "?"] [Round "9"] [Result "1-0"] [White "Leonid Alexandrovich Shamkovich"] [Black "Walter Shawn Browne"] [ECO "B52"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "81"] 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Nxd7 5.c4 Ngf6 6.Nc3 g6 7.d4 cxd4 8.Nxd4 Bg7 9.O-O O-O 10.Be3 a6 11.Rc1 Rc8 12.b3 Qa5 13.f3 e6 14.Nde2 Qb4 15.a3 Qa5 16.Qxd6 Rfd8 17.Qb4 Qc7 18.Na4 Bf8 19.c5 b5 20.cxb6 Qxc1 21.Qxf8+ Kxf8 22.Rxc1 Rxc1+ 23.Nxc1 Nb8 24.Kf2 Nfd7 25.Ke2 Ke7 26.b4 Rc8 27.Bc5+ Nxc5 28.bxc5 Rd8 29.Nd3 Nc6 30.Ke3 Kd7 31.Nab2 f6 32.Nc4 Ra8 33.f4 a5 34.g4 h6 35.g5 hxg5 36.fxg5 e5 37.gxf6 Ke6 38.f7+ Rh8 39.h4 Kf6 40.b7 Ke6 41.Ndxe5 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.22"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "Vitaly F Zaltsman"] [Black "Pal Benko"] [ECO "D85"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "24"] 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 c5 8.Bb5+ Nc6 9.Be3 O-O 10.O-O cxd4 11.cxd4 Bg4 12.Bxc6 bxc6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.22"] [EventDate "?"] [Round "9"] [Result "1/2-1/2"] [White "Peter Biyiasas"] [Black "Robert Eugene Byrne"] [ECO "D63"] [WhiteElo "2485"] [BlackElo "2530"] [PlyCount "97"] 1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 a6 8.cxd5 exd5 9.Be2 c6 10.O-O Re8 11.Ne1 Nf8 12.Nd3 Ng6 13.Bxf6 Bxf6 14.Bg4 Be7 15.Bxc8 Rxc8 16.Ne2 Bd6 17.Ng3 Qh4 18.Rc3 Ne7 19.Ne1 Nf5 20.Nf3 Qf6 21.Nxf5 Qxf5 22.Ne1 Re4 23.Qf3 Qg5 24.Nd3 h5 25.Rfc1 h4 26.Qh3 f5 27.g3 Rf8 28.Kf1 Rf6 29.Qg2 Qh5 30.Ke1 f4 31.gxf4 Bxf4 32.Qh3 Qe8 33.Kd2 Bd6 34.Rg1 Qf8 35.Ke2 c5 36.dxc5 d4 37.Rc4 Rxf2+ 38.Nxf2 Rxe3+ 39.Qxe3 dxe3 40.Ng4 Bxh2 41.Rf1 Qd8 42.Nxe3 Be5 43.b4 h3 44.Re4 Bc3 45.Rd1 Qg5 46.Rd5 Qf6 47.Rh5 Qf7 48.Rxh3 Qxa2+ 49.Kf3 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.22"] [EventDate "?"] [Round "9"] [Result "1-0"] [White "Anatoly Lein"] [Black "John A Peters"] [ECO "B05"] [WhiteElo "2520"] [BlackElo "2465"] [PlyCount "117"] 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.O-O Be7 7.c4 Nb6 8.Be3 O-O 9.Nbd2 Nc6 10.exd6 cxd6 11.Rc1 d5 12.c5 Nd7 13.b4 a6 14.a3 f5 15.Nb3 g5 16.Bd2 Bf6 17.Bc3 Ne7 18.Nfd2 Bg7 19.Bxg4 fxg4 20.Qxg4 Nf5 21.Qe2 Qf6 22.Na5 b6 23.cxb6 Nxb6 24.Ba1 Nxd4 25.Bxd4 Qxd4 26.Qxe6+ Kh8 27.Nf3 Qf6 28.Nxg5 Qxg5 29.Qxb6 Bb2 30.Rc2 Bxa3 31.Qd4+ Qf6 32.Qd3 Bxb4 33.Rc7 Be7 34.Nc6 Rae8 35.Rxe7 Rxe7 36.Nxe7 Qxe7 37.Qxa6 Qe4 38.Qa1+ d4 39.Rd1 Rd8 40.h3 Kg8 41.Qa5 Rd7 42.Qa2+ Kg7 43.Qc4 Qe5 44.Qd3 Qf4 45.g3 Qe5 46.Kg2 Rd8 47.Rd2 Qg5 48.Re2 Qc5 49.Re4 Kh8 50.Rh4 Qd5+ 51.Kh2 Qf7 52.Kg1 Qd7 53.Rg4 Qd5 54.h4 Qd6 55.Rf4 Rd7 56.Kf1 Qd5 57.Qe4 Qb5+ 58.Kg1 Qb8 59.Qe6 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.23"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "Pal Benko"] [Black "Larry Melvyn Evans"] [ECO "A04"] [WhiteElo "2485"] [BlackElo "2520"] [PlyCount "18"] 1.Nf3 c5 2.b3 Nc6 3.Bb2 Nf6 4.e3 e6 5.c4 b6 6.Be2 Bb7 7.Nc3 d5 8.cxd5 Nxd5 9.O-O Nf6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.23"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Leonid Alexandrovich Shamkovich"] [ECO "A46"] [WhiteElo "2455"] [BlackElo "2515"] [PlyCount "103"] 1.d4 Nf6 2.Nf3 c5 3.c3 b6 4.dxc5 bxc5 5.e4 Bb7 6.e5 Ne4 7.Bd3 e6 8.Qc2 d5 9.exd6 Nxd6 10.Nbd2 Nd7 11.O-O Qc7 12.Re1 c4 13.Bf1 Be7 14.Nd4 O-O 15.N2f3 Bd5 16.Bf4 Qb7 17.Nd2 Rac8 18.Re3 Nf6 19.Rae1 a6 20.b4 cxb3 21.axb3 Nb5 22.Nf5 Bd8 23.Nxg7 Kxg7 24.Rg3+ Kh8 25.Be5 Rg8 26.c4 Rxg3 27.hxg3 Kg8 28.Qd1 Nc7 29.cxd5 Ncxd5 30.Nc4 Qb4 31.g4 Be7 32.Bd3 Kf8 33.g5 Nd7 34.Bg3 Qc3 35.Ne5 Nxe5 36.Bxe5 Qb4 37.Bxa6 Rc2 38.Bc4 Ra2 39.f4 Qb6+ 40.Bd4 Bc5 41.Bxc5+ Qxc5+ 42.Kh1 Qf2 43.Re2 Rxe2 44.Qxe2 Qh4+ 45.Kg1 Nxf4 46.Qe5 Ng6 47.Qe3 Qg4 48.Be2 Qb4 49.Bc4 Qd6 50.Be2 Nf4 51.Bf1 e5 52.b4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.23"] [EventDate "?"] [Round "10"] [Result "0-1"] [White "Joseph M Bradford"] [Black "Vitaly F Zaltsman"] [ECO "E00"] [WhiteElo "2305"] [BlackElo "2460"] [PlyCount "80"] 1.d4 Nf6 2.c4 e6 3.g3 c5 4.d5 exd5 5.cxd5 b5 6.Bg2 d6 7.e4 Nbd7 8.Nh3 g6 9.O-O Bg7 10.Bf4 Qb6 11.a4 bxa4 12.Qxa4 Nh5 13.Nd2 Nxf4 14.Nxf4 O-O 15.Nc4 Qb8 16.Qc6 Ne5 17.Nxe5 Bxe5 18.Nd3 Bd4 19.Kh1 Rd8 20.Qa4 Bd7 21.Qc2 Qb5 22.Rfb1 c4 23.Nc1 Qc5 24.f3 Rab8 25.Ne2 Bg7 26.Ra2 Rb4 27.Nc3 Rdb8 28.Rba1 Qe3 29.h4 Bd4 30.Kh2 f5 31.Rf1 Rb3 32.Nd1 Qd3 33.Qc1 fxe4 34.Qg5 e3 35.Qe7 e2 36.Re1 exd1=Q 37.Rxd1 Qxd1 38.Qxd7 Rxb2 39.Rxb2 Bxb2 40.Qxd6 Rf8 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.23"] [EventDate "?"] [Round "10"] [Result "1-0"] [White "Walter Shawn Browne"] [Black "Peter Biyiasas"] [ECO "E69"] [WhiteElo "2540"] [BlackElo "2485"] [PlyCount "123"] 1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Bg2 d6 6.Nc3 Nbd7 7.O-O e5 8.e4 c6 9.h3 Qb6 10.b3 exd4 11.Na4 Qa5 12.Nxd4 Nb6 13.Bd2 Qh5 14.Nc3 Bxh3 15.Qxh5 Nxh5 16.Nxc6 Bxg2 17.Ne7+ Kh8 18.Kxg2 Rae8 19.Ned5 Nxd5 20.exd5 a6 21.Rac1 f5 22.Rfe1 Kg8 23.Ne2 Bb2 24.Rcd1 Be5 25.Bh6 Bg7 26.Bc1 Be5 27.Bh6 Bg7 28.Bc1 Be5 29.Nd4 Bxd4 30.Rxe8 Rxe8 31.Rxd4 Kf7 32.Ba3 Ke7 33.f3 Kd7 34.Kf2 Nf6 35.Bb2 h5 36.Rh4 Ng8 37.g4 fxg4 38.fxg4 Rf8+ 39.Kg3 Nf6 40.Bxf6 Rxf6 41.gxh5 gxh5 42.Rxh5 Rf1 43.Rh7+ Kc8 44.Kg4 Rf2 45.a4 a5 46.Re7 Rf1 47.Rh7 Rf2 48.Rh3 Kc7 49.Rf3 Rb2 50.Kf5 Re2 51.Rh3 Kb6 52.Rh8 Re3 53.Rc8 Re5+ 54.Kf6 Re3 55.Kf7 Re1 56.Kf6 Re3 57.c5+ dxc5 58.d6 Rd3 59.Ke7 Re3+ 60.Kf6 Rd3 61.Ke7 Re3+ 62.Kd8 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.23"] [EventDate "?"] [Round "10"] [Result "0-1"] [White "Anatoly Lein"] [Black "Yasser Seirawan"] [ECO "B06"] [WhiteElo "2520"] [BlackElo "2510"] [PlyCount "82"] 1.e4 g6 2.d4 d6 3.Nc3 a6 4.g3 b5 5.Bg2 Bb7 6.Nge2 Nd7 7.O-O Bg7 8.Nd5 c6 9.Ne3 Ngf6 10.h3 O-O 11.c3 e5 12.dxe5 Nxe5 13.Qc2 Re8 14.Bd2 Ned7 15.Rfe1 c5 16.f3 d5 17.Nxd5 Nxd5 18.exd5 Bxd5 19.Nf4 Ne5 20.Re3 Bc6 21.Nd3 Qd6 22.Nxe5 Rxe5 23.g4 Rd5 24.Re2 Rd8 25.Be3 Rd3 26.Rae1 c4 27.a3 Qg3 28.Bf2 Qb8 29.Bh4 f6 30.Rf1 g5 31.Be1 Qf4 32.Re6 Rc8 33.Qf2 Bf8 34.Qg3 Kf7 35.Qxf4 gxf4 36.Re2 Rcd8 37.Bf2 Bxf3 38.Bxf3 Rxf3 39.Kg2 Rdd3 40.Kh1 Bd6 41.Rc2 Ke6 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.23"] [EventDate "?"] [Round "10"] [Result "1/2-1/2"] [White "John A Peters"] [Black "Robert Eugene Byrne"] [ECO "B25"] [WhiteElo "2465"] [BlackElo "2530"] [PlyCount "30"] 1.e4 c5 2.Nc3 d6 3.g3 Nc6 4.Bg2 g6 5.d3 Bg7 6.f4 e6 7.Nf3 Nge7 8.O-O O-O 9.Be3 Nd4 10.Rb1 Nec6 11.Ne2 Nxf3+ 12.Bxf3 Nd4 13.Bg2 Bd7 14.c3 Nxe2+ 15.Qxe2 Rc8 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.25"] [EventDate "?"] [Round "11"] [Result "1/2-1/2"] [White "Vitaly F Zaltsman"] [Black "Larry Mark Christiansen"] [ECO "E11"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "107"] 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Bxd2+ 5.Qxd2 O-O 6.Nc3 d6 7.g3 Qe7 8.Bg2 Nc6 9.O-O Bd7 10.e4 e5 11.h3 exd4 12.Nxd4 Nxd4 13.Qxd4 Qe5 14.Rad1 Rfe8 15.f4 Qxd4+ 16.Rxd4 Bc6 17.Rc1 Rac8 18.Kf2 a5 19.Bf3 h6 20.Nd5 Kf8 21.b3 Nxd5 22.cxd5 Bd7 23.Bg4 Bxg4 24.hxg4 Ke7 25.Ra4 Kd7 26.Ke3 Ra8 27.Rac4 Rac8 28.Kd4 f6 29.R4c2 Re7 30.Rc3 Rf7 31.Rh1 Re7 32.Rh5 Rce8 33.Re3 Ra8 34.Rf5 Rf8 35.Rh5 Ra8 36.Rh2 Rb8 37.Rhe2 c5 38.dxc6 bxc6 39.Rc2 Rb5 40.Rec3 Rb4+ 41.Rc4 Ke6 42.Kc3 c5 43.a3 Rb5 44.Kb2 Reb7 45.R2c3 Rb8 46.Kc2 Rh8 47.Ra4 h5 48.gxh5 Rxh5 49.Kd3 Rh1 50.Kc4 Rb7 51.Rxa5 Rd1 52.Re3 Rc1+ 53.Rc3 Rd1 54.Re3 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.25"] [EventDate "?"] [Round "11"] [Result "1/2-1/2"] [White "Larry Melvyn Evans"] [Black "Joseph M Bradford"] [ECO "A17"] [WhiteElo "2520"] [BlackElo "2305"] [PlyCount "120"] 1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.g3 b6 5.Bg2 Bb7 6.d4 cxd4 7.Qxd4 d6 8.O-O Be7 9.b3 Nbd7 10.Bb2 a6 11.Rfd1 O-O 12.Ne1 Bxg2 13.Nxg2 Qc7 14.Ne3 Qb7 15.Rd2 Rfd8 16.Rad1 Ne5 17.a4 Rac8 18.h3 Nc6 19.Qd3 Bf8 20.Ne4 Nxe4 21.Qxe4 Na5 22.Qd3 Qc7 23.h4 Nb7 24.h5 Nc5 25.Qc2 h6 26.Rd4 Nd7 27.Ba3 Nf6 28.Qd3 Nxh5 29.Bxd6 Bxd6 30.Rxd6 Rxd6 31.Qxd6 Nf6 32.Qxc7 Rxc7 33.Rd8+ Kh7 34.Rd1 Rb7 35.b4 Ne4 36.Rd8 Nc3 37.Ra8 Na2 38.b5 axb5 39.cxb5 Nc3 40.Kf1 Rc7 41.Ra6 h5 42.f3 g5 43.Kf2 Kg7 44.Ke1 Rc5 45.Rxb6 Nxa4 46.Rb8 h4 47.gxh4 gxh4 48.Kf2 h3 49.b6 Rb5 50.Nc4 Nc5 51.Kg3 Rb4 52.Rc8 Nd7 53.Rc6 Kf8 54.Kxh3 Ke7 55.Kg3 Kd8 56.e4 Nb8 57.Na5 Rb5 58.Nb7+ Ke7 59.Rc7+ Nd7 60.Kf4 f6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.25"] [EventDate "?"] [Round "11"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "Walter Shawn Browne"] [ECO "B92"] [WhiteElo "2434"] [BlackElo "2435"] [PlyCount "46"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.Bg5 Be6 10.f4 exf4 11.Bxf4 Nc6 12.Kh1 d5 13.e5 Nd7 14.Nxd5 Ndxe5 15.c4 Bg5 16.Nc5 Bxf4 17.Rxf4 b6 18.Na4 b5 19.Nac3 bxc4 20.Bxc4 Qg5 21.Bb3 Rad8 22.Ra4 a5 23.Qf1 Qh6 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.25"] [EventDate "?"] [Round "11"] [Result "1/2-1/2"] [White "Peter Biyiasas"] [Black "Arthur Bisguier"] [ECO "C65"] [WhiteElo "2485"] [BlackElo "2455"] [PlyCount "58"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.c3 g6 6.Nbd2 Bg7 7.Nf1 a6 8.Ba4 b5 9.Bc2 Bb7 10.Ng3 Qd7 11.a3 a5 12.O-O O-O 13.Bg5 h6 14.Bd2 d5 15.exd5 Qxd5 16.Ne4 Nxe4 17.dxe4 Qc4 18.Be3 Rfd8 19.Nd2 Qe6 20.Bb3 Qc8 21.Qf3 Rd7 22.Qh3 a4 23.Bd1 Rd6 24.Qxc8+ Bxc8 25.Be2 Rb8 26.Rfd1 Be6 27.Bc5 Rdd8 28.f3 Bf8 29.Bxf8 Kxf8 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.25"] [EventDate "?"] [Round "11"] [Result "1-0"] [White "Yasser Seirawan"] [Black "John A Peters"] [ECO "A19"] [WhiteElo "2510"] [BlackElo "2465"] [PlyCount "69"] 1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8 5.d4 cxd4 6.Qxd4 Nc6 7.Qe4 d6 8.Nf3 Qa5 9.exd6 Bxd6 10.Qd3 Be7 11.Bd2 Nb4 12.Qb1 Qd8 13.a3 Nc6 14.Bd3 Nf6 15.O-O O-O 16.Rd1 Bd7 17.Bf4 a6 18.h3 h6 19.b4 Qe8 20.Ra2 Na7 21.Ne5 Nc6 22.Nxd7 Nxd7 23.Be4 f5 24.Bxc6 bxc6 25.Rad2 Nb6 26.Qb3 c5 27.bxc5 Bxc5 28.Bd6 Qc6 29.Bxf8 Rxf8 30.Rd8 Nxc4 31.Rxf8+ Bxf8 32.Ne2 Nxa3 33.Rd8 Nb5 34.Qb4 Nd6 35.Qb8 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.25"] [EventDate "?"] [Round "11"] [Result "1-0"] [White "Leonid Alexandrovich Shamkovich"] [Black "Pal Benko"] [ECO "A42"] [WhiteElo "2515"] [BlackElo "2485"] [PlyCount "62"] 1.e4 g6 2.d4 d6 3.c4 Bg7 4.Nc3 e5 5.Nge2 Nd7 6.f3 c6 7.Be3 a6 8.d5 c5 9.g4 h5 10.g5 Rb8 11.Nc1 h4 12.Rg1 f5 13.gxf6 Qxf6 14.Bg5 Qf7 15.Bh3 Nf8 16.Bxc8 Rxc8 17.Nd3 Bh6 18.f4 Bxg5 19.fxg5 Qd7 20.Qe2 Rh5 21.O-O-O Nh7 22.Qe3 Kf8 23.Rdf1+ Kg7 24.Ne1 Qe7 25.Nf3 Rf8 26.Kd2 Qd7 27.Rf2 b5 28.b3 bxc4 29.bxc4 Rb8 30.Kc2 Qh3 31.Nxe5 Rf8 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.26"] [EventDate "?"] [Round "12"] [Result "0-1"] [White "John A Peters"] [Black "Walter Shawn Browne"] [ECO "B90"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "74"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.Qd2 Nbd7 9.f3 b5 10.Nd5 Bxd5 11.exd5 Nb6 12.Bxb6 Qxb6 13.Na5 Nxd5 14.Qxd5 Qxa5+ 15.c3 Rc8 16.a4 Be7 17.Ra2 Qb6 18.axb5 a5 19.Ra4 O-O 20.Kd1 Rc5 21.Qd2 d5 22.Bd3 f5 23.Re1 e4 24.Bf1 Bf6 25.fxe4 dxe4 26.Kc2 Rd8 27.Qe3 h6 28.Rc4 Rxb5 29.Qxb6 Rxb6 30.Rc5 Bg5 31.Bc4+ Kh7 32.Bd5 a4 33.Ra5 e3 34.Re2 Rdb8 35.Rxa4 Rxb2+ 36.Kd3 Rxe2 37.Kxe2 Rb2+ 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.26"] [EventDate "?"] [Round "12"] [Result "1/2-1/2"] [White "Larry Mark Christiansen"] [Black "Larry Melvyn Evans"] [ECO "E59"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "51"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 Nc6 9.a3 Bxc3 10.bxc3 Qc7 11.Bb5 a6 12.Bd3 e5 13.Qc2 Re8 14.Nxe5 Nxe5 15.dxe5 Qxe5 16.f3 Bd7 17.Re1 Ba4 18.Qb1 Rad8 19.Bb2 c4 20.Bxc4 Qc5 21.Bf1 Rxe3 22.Kh1 Bc6 23.Rxe3 Qxe3 24.c4 Nh5 25.Qe1 Qh6 26.Qh4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.26"] [EventDate "?"] [Round "12"] [Result "1/2-1/2"] [White "Anatoly Lein"] [Black "Vitaly F Zaltsman"] [ECO "B56"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "162"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be3 e5 7.Nb3 Be7 8.Be2 O-O 9.O-O a5 10.a4 Nb4 11.Bf3 Be6 12.Re1 Rc8 13.Re2 Bc4 14.Rd2 Qc7 15.Be2 Be6 16.Nb5 Qb8 17.c3 Nc6 18.f3 b6 19.Nc1 Rfd8 20.c4 Na7 21.b3 Nxb5 22.axb5 Nd7 23.Na2 h6 24.Nc3 Nc5 25.Rb2 Bg5 26.Bf2 Qc7 27.Bd3 Qe7 28.Kh1 g6 29.Na4 Rb8 30.Re2 Kg7 31.Bc2 Rdc8 32.Qe1 Qd8 33.Qc3 Qc7 34.Qb2 Bd7 35.Qa3 Rd8 36.Rd1 Be6 37.Qa1 Bf6 38.Be1 Rf8 39.Bc3 Bc8 40.Red2 Rd8 41.Nxc5 Qxc5 42.Rd5 Qc7 43.c5 bxc5 44.Bxa5 Rb6 45.Qa4 Be6 46.R5d2 Bg5 47.Bxb6 Qxb6 48.Re2 Rb8 49.Bd3 Bd7 50.g3 Be3 51.b4 Bd4 52.Kg2 Bxb5 53.Bxb5 Qxb5 54.Qxb5 Rxb5 55.bxc5 dxc5 56.Rc1 Ra5 57.f4 Kf6 58.Rb1 c4 59.Rb7 Ra1 60.Rc7 c3 61.Rc6+ Ke7 62.fxe5 Bxe5 63.Rf2 h5 64.Rc4 Ke6 65.Kf3 Ra6 66.Ke3 Ra1 67.Rb4 Ra6 68.Kd3 Ra7 69.Rb6+ Ke7 70.Rb4 f6 71.Kc4 Kf7 72.Kd3 g5 73.Rb5 Kg6 74.Rd5 Ra1 75.Rxe5 fxe5 76.Kxc3 g4 77.Kd3 Ra3+ 78.Kc4 Ra5 79.Kd3 h4 80.gxh4 Kh5 81.Rf8 Kxh4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.26"] [EventDate "?"] [Round "12"] [Result "0-1"] [White "Pal Benko"] [Black "Peter Biyiasas"] [ECO "A49"] [WhiteElo "2485"] [BlackElo "2485"] [PlyCount "78"] 1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 d5 7.Ne5 c6 8.e3 Bf5 9.g4 Bc8 10.f4 Nbd7 11.h3 Ne8 12.e4 dxe4 13.Nxe4 Nd6 14.Nf2 Nb6 15.b3 Nd5 16.c4 Nc7 17.Be3 a5 18.Qc2 Be6 19.Rad1 Qc8 20.d5 cxd5 21.cxd5 Bd7 22.Rc1 Nce8 23.Qd2 Qd8 24.Bb6 Qxb6 25.Nxd7 Qb4 26.Rfd1 Nb5 27.Nxf8 Kxf8 28.Kh1 Ned6 29.Nd3 Qxd2 30.Rxd2 Bd4 31.Re2 a4 32.bxa4 Rxa4 33.Nc5 Bxc5 34.Rxc5 Rxf4 35.Rb2 Nd4 36.Rb4 h5 37.gxh5 gxh5 38.Rc1 N6f5 39.Rxb7 Rf2 0-1 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.26"] [EventDate "?"] [Round "12"] [Result "1/2-1/2"] [White "Arthur Bisguier"] [Black "Robert Eugene Byrne"] [ECO "E78"] [WhiteElo "2455"] [BlackElo "2530"] [PlyCount "35"] 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.Be2 cxd4 8.Nxd4 Bg4 9.Be3 Qc8 10.Nf3 Nbd7 11.O-O Bxf3 12.gxf3 Bh6 13.Qe1 Nh5 14.Qh4 e5 15.Nd5 Qd8 16.Qxd8 Rfxd8 17.f5 Bxe3+ 18.Nxe3 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.26"] [EventDate "?"] [Round "12"] [Result "1/2-1/2"] [White "Joseph M Bradford"] [Black "Leonid Alexandrovich Shamkovich"] [ECO "A07"] [WhiteElo "2305"] [BlackElo "2515"] [PlyCount "76"] 1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.O-O Bg4 5.d4 Nbd7 6.Nbd2 e6 7.c4 Bd6 8.b3 O-O 9.Bb2 Qb8 10.Re1 b5 11.e4 bxc4 12.e5 Ne4 13.exd6 c3 14.Bxc3 Nxc3 15.Qc2 Nb5 16.Qxc6 Rd8 17.Rac1 Nxd6 18.Qa4 Bf5 19.Bf1 a5 20.Rc6 Ne4 21.Nxe4 dxe4 22.Nd2 Nf6 23.Bg2 Qb4 24.Qxb4 axb4 25.Rc4 Rxa2 26.Nxe4 Bxe4 27.Bxe4 Rb8 28.Bf3 Rb2 29.Re3 g6 30.g4 g5 31.h3 h6 32.Rc5 Rd2 33.Rc4 Nd5 34.Bxd5 exd5 35.Rc7 Rxd4 36.Rf3 Rf8 37.Rb7 f6 38.Rf5 Rf7 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.28"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Leonid Alexandrovich Shamkovich"] [Black "Larry Mark Christiansen"] [ECO "B62"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "85"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O h6 9.Be3 Nxd4 10.Bxd4 b5 11.f3 Be7 12.Kb1 O-O 13.h4 b4 14.Na4 e5 15.Be3 Rb8 16.Qf2 Bb7 17.Bc4 Bc6 18.b3 Bb5 19.Nb6 Bxc4 20.Nxc4 d5 21.Qg3 Kh8 22.Qxe5 Rb5 23.Qg3 Qc8 24.Nd6 Bxd6 25.Qxd6 dxe4 26.Bxh6 Re8 27.Bg5 Re6 28.Qd8+ Qxd8 29.Rxd8+ Kh7 30.Rhd1 Rf5 31.R8d4 a5 32.Bxf6 exf3 33.gxf3 Rexf6 34.Rd5 Kh6 35.R1d4 Kh5 36.a3 Rxd5 37.Rxd5+ Kxh4 38.Rxa5 bxa3 39.Ra4+ Kh3 40.b4 Rf4 41.Ka2 g5 42.Rxa3 Rxb4 43.f4 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.28"] [EventDate "?"] [Round "13"] [Result "1-0"] [White "Vitaly F Zaltsman"] [Black "Yasser Seirawan"] [ECO "A41"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "133"] 1.d4 d6 2.g3 g6 3.Bg2 Bg7 4.Nf3 e5 5.dxe5 dxe5 6.Qxd8+ Kxd8 7.Nc3 c6 8.Be3 Na6 9.O-O-O Kc7 10.Ng5 Nh6 11.f4 f6 12.Nge4 Nf5 13.Bd2 h6 14.h4 Be6 15.g4 Ne7 16.fxe5 fxe5 17.g5 h5 18.Nf6 Rhf8 19.Nce4 Nd5 20.c4 Nxf6 21.gxf6 Bxf6 22.Nxf6 Rxf6 23.Bc3 Rf7 24.Bxe5+ Kb6 25.Bd4+ c5 26.Be5 Rd7 27.Rxd7 Bxd7 28.Rd1 Bc6 29.Bxc6 bxc6 30.Rg1 Re8 31.Rg5 Nc7 32.Kd2 Re6 33.e4 Ne8 34.Ke3 Kb7 35.Kf4 Kc8 36.Rg3 Nd6 37.Bxd6 Rxd6 38.Ke5 Rd2 39.Rxg6 Rxb2 40.Rxc6+ Kd7 41.Ra6 Rh2 42.Kd5 Rxh4 43.Rxa7+ Ke8 44.a4 Rh1 45.Kxc5 Kf8 46.Rd7 Re1 47.a5 Ra1 48.Kb6 Rb1+ 49.Kc6 Ra1 50.Rd5 h4 51.Rh5 Ke7 52.Rxh4 Rxa5 53.c5 Ra4 54.Kc7 Ra7+ 55.Kb6 Ra1 56.c6 Rb1+ 57.Kc7 Rb2 58.Kc8 Rb4 59.c7 Rb5 60.Rh7+ Ke8 61.Rd7 Rb1 62.Rd5 Ke7 63.Re5+ Kd6 64.Re8 Rc1 65.e5+ Kc6 66.Re6+ Kd5 67.Rb6 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.28"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Larry Melvyn Evans"] [Black "Anatoly Lein"] [ECO "A07"] [WhiteElo "2520"] [BlackElo "2520"] [PlyCount "89"] 1.e4 c5 2.Nf3 e6 3.d3 Be7 4.g3 Nc6 5.Bg2 d6 6.O-O Nf6 7.Nbd2 O-O 8.c3 Rb8 9.Qe2 b6 10.a3 Ba6 11.b4 Nd7 12.Rb1 b5 13.d4 Qc7 14.dxc5 dxc5 15.Nb3 e5 16.Be3 c4 17.Nbd2 Bb7 18.a4 a6 19.a5 Rbe8 20.Rfd1 Nd8 21.h4 Bc6 22.Nh2 Nb7 23.f3 Nd6 24.Bf2 f5 25.exf5 Nxf5 26.Ne4 Nd6 27.Nf1 Nxe4 28.fxe4 Nf6 29.g4 Qc8 30.Bf3 h5 31.g5 Ng4 32.Bg3 Rxf3 33.Qxf3 Rf8 34.Qe2 Qb7 35.Re1 Rd8 36.Rbc1 Rd3 37.Rc2 Qa8 38.Qg2 Qf8 39.Rcc1 Qc8 40.Bf2 Qa8 41.Nh2 Bd7 42.Nxg4 Bxg4 43.Re3 Rd2 44.Qg3 Bd6 45.Rf1 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.28"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Robert Eugene Byrne"] [Black "Pal Benko"] [ECO "B42"] [WhiteElo "2530"] [BlackElo "2485"] [PlyCount "20"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.c4 b6 8.Nc3 Bb7 9.b3 Be7 10.Bb2 O-O 1/2-1/2 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.28"] [EventDate "?"] [Round "13"] [Result "1-0"] [White "Peter Biyiasas"] [Black "Joseph M Bradford"] [ECO "C49"] [WhiteElo "2485"] [BlackElo "2305"] [PlyCount "81"] 1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.Bb5 Bb4 5.O-O O-O 6.d3 Bxc3 7.bxc3 d6 8.Bg5 Qe7 9.Bxc6 bxc6 10.Nd2 h6 11.Bxf6 Qxf6 12.Rb1 Qd8 13.Nb3 c5 14.f3 Rb8 15.Na5 Rb6 16.Nc4 Ra6 17.Rb2 Be6 18.Ne3 Rb6 19.Rb1 Qg5 20.Qe2 Rfb8 21.Ra1 Rb2 22.c4 f5 23.exf5 Bxf5 24.Nd5 c6 25.f4 exf4 26.Nxf4 Bd7 27.Qd2 Re8 28.Kh1 Qe5 29.h3 Qd4 30.a3 d5 31.Qa5 Rxc2 32.Qxa7 dxc4 33.dxc4 Rf8 34.Ng6 Re8 35.Nf4 Rf8 36.Ng6 Re8 37.Rae1 Rxe1 38.Rxe1 Qf2 39.Qb8+ Kf7 40.Nh8+ Kf6 41.Qe5# 1-0 [Event "USA-ch"] [Site "Greenville, PA USA"] [Date "1980.06.28"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Walter Shawn Browne"] [Black "Arthur Bisguier"] [ECO "D43"] [WhiteElo "2540"] [BlackElo "2455"] [PlyCount "109"] 1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.a3 Bd6 9.e4 dxe4 10.Nxe4 Qe7 11.Nxd6+ Qxd6 12.c5 Qc7 13.Bc4 O-O 14.O-O b6 15.b4 e5 16.Re1 exd4 17.Qxd4 bxc5 18.bxc5 Nf6 19.Qd6 Qxd6 20.cxd6 Rd8 21.Ne5 Be6 22.Bxe6 fxe6 23.Red1 Rac8 24.Rac1 c5 25.f4 Ne4 26.d7 Rc7 27.Rc2 Kf8 28.Kf1 Ke7 29.Rdc1 c4 30.Ke2 Nd6 31.Rd1 Nf7 32.Rxc4 Rxc4 33.Nxc4 Rxd7 34.Rxd7+ Kxd7 35.Kd3 Kc6 36.Kd4 Kb5 37.Nb2 h5 38.g3 a5 39.h3 g6 40.g4 hxg4 41.hxg4 g5 42.fxg5 Nxg5 43.Ke5 Kc5 44.Kf6 Nh3 45.Kxe6 Kd4 46.Kf5 Kc3 47.Nd1+ Kb3 48.Nf2 Nxf2 49.g5 Nd1 50.g6 Ne3+ 51.Kg5 Nd5 52.g7 Ne7 53.Kf6 Ng8+ 54.Kf7 Nh6+ 55.Kg6 1/2-1/2

    Return to the main page
    Return to the US Championship main page