[Event "US Open-96"]
[Site "Concord"]
[Date "1995.??.??"]
[Round "6"]
[White "Frenkel, Filipp"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2205"]
[PlyCount "103"]
[EventDate "1995.08.06"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. d3 g6 4. f4 Bg7 5. Be2 d6 6. Nc3 e6 7. Bf3 Nd4 8. g4 Qh4+ 9. Kf1 Nxf3 10. Qxf3 Bxc3 11. bxc3 h5 12. g5 Qg4 13. Be3 Qxf3+ 14. Nxf3 Ne7 15. Ke2 b6 16. Rhb1 Ba6 17. a4 Nc6 18. Nd2 Kd7 19. Bf2 Rhe8 20. Kd1 Kc7 21. Kc2 Na5 22. Bg3 Bc8 23. Nf1 Bd7 24. Ne3 Nc6 25. Rf1 Ne7 26. a5 Kc6 27. Ra2 bxa5 28. Rxa5 a6 29. Rfa1 Kb6 30. R5a2 a5 31. Rb2+ Kc7 32. d4 cxd4 33. cxd4 a4 34. Ra3 Ra6 35. c5 dxc5 36. f5+ Kd8 37. Rb8+ Nc8 38. fxg6 fxg6 39. dxc5 Ke7 40. Rb7 Kd8 41. Rd3 Re7 42. Be5 Ke8 43. Bf6 Bc6 44. Rb8 Bxe4 45. Rxc8+ Kf7 46. Nc4 Re8 47. Rc7+ Kf8 48. Nd6 Bxd3+ 49. Kxd3 Rb8 50. Rf7+ Kg8 51. Rg7+ Kf8 52. Rf7+ 1-0

[Event "US Open-96"]
[Site "Concord"]
[Date "1995.??.??"]
[Round "4"]
[White "Koelsche, Giles A"]
[Black "De Mastri, John P"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "27"]
[EventDate "1995.08.06"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 c5 5. g3 0-0 6. Bg2 Nc6 7. 0-0 b6 8. d4 cxd4 9. Nxd4 Bb7 10. Nc3 e6 11. Ba3 Rb8 12. Bxf8 Nxd4 13. Bxg7 Bxg2 14. Kxg2 1-0

[Event "US op active"]
[Site "Concord"]
[Date "1995.??.??"]
[Round "5"]
[White "Koelsche, Giles A"]
[Black "Frumkin, Edward A"]
[Result "1/2-1/2"]
[ECO "A89"]
[BlackElo "2120"]
[PlyCount "81"]
[EventDate "1995.??.??"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 f5 3. Nc3 Nf6 4. g3 Bg7 5. Bg2 d6 6. d4 0-0 7. 0-0 Nc6 8. b3 Ne4 9. Bb2 Nxc3 10. Bxc3 e5 11. dxe5 Qe8 12. Rc1 dxe5 13. e4 f4 14. Qd5+ Be6 15. Qb5 a6 16. Qc5 b6 17. Qa3 h6 18. Qb2 Bd7 19. Rcd1 g5 20. h3 g4 21. hxg4 Bxg4 22. Rd5 Bxf3 23. Bxf3 Qg6 24. Kg2 Rae8 25. Rh1 Nd4 26. Bxd4 exd4 27. Rf5 Rxf5 28. exf5 Qxf5 29. g4 Qd7 30. Qd2 Qd6 31. Bd5+ Kf8 32. Qd3 Re5 33. Rh5 Rxh5 34. gxh5 Qe5 35. Qg6 Qg5+ 36. Kf3 Qxg6 37. hxg6 Ke7 38. Kxf4 a5 39. Be4 Kf6 40. Bd3 Ke6 41. Kg4 1/2-1/2

[Event "US Open-84"]
[Site "Pasadena"]
[Date "1983.08.08"]
[Round "2"]
[White "Fedorowicz, John P"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2430"]
[PlyCount "99"]
[EventDate "1983.08.07"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 c6 6. Be3 a6 7. Bd3 b5 8. cxb5 axb5 9. a3 Nbd7 10. Nge2 0-0 11. 0-0 Bb7 12. Qd2 Nb6 13. Rad1 e5 14. dxe5 dxe5 15. Bxb5 Nfd7 16. Bd3 Qe7 17. Qc2 Rfd8 18. Nc1 Qe6 19. Qb3 Qxb3 20. Nxb3 Bf8 21. Be2 Be7 22. Rd2 Kf8 23. Rfd1 Ke8 24. Kf2 Ba6 25. Bxa6 Rxa6 26. Rc2 Nc4 27. Nb1 Nxe3 28. Kxe3 Rb8 29. N3d2 Bc5+ 30. Ke2 Bd4 31. Nc4 Ke7 32. Nbd2 Ke6 33. Rb1 Nc5 34. b4 Na4 35. Nb3 Rb5 36. Kd3 c5 37. g3 Ra8 38. Nxd4+ cxd4 39. Rf1 f5 40. g4 f4 41. h4 h6 42. Ra1 Rc8 43. Na5 Nc3 44. Nb3 Ra8 45. Nc5+ Kd6 46. Kc4 Kc6 47. Nd3 Kb6 48. Kb3 Na4 49. Rac1 Nc3 50. a4 1-0

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1975.03.07"]
[Round "8"]
[White "Koelsche, Giles A"]
[Black "Dean, Donald F"]
[Result "1-0"]
[ECO "B96"]
[PlyCount "59"]
[EventDate "1975.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. Nf3 c5 2. e4 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qf3 Qc7 9. 0-0-0 b5 10. Bxb5 axb5 11. Ndxb5 Qb8 12. e5 Bb7 13. Qe2 dxe5 14. Qc4 Be7 15. Nc7+ Kf8 16. Nxa8 Qxa8 17. Bxf6 Nxf6 18. fxe5 Ne4 19. Nxe4 Bxe4 20. Qc7 h5 21. Rd7 Bg5+ 22. Kb1 Bg6 23. Rhd1 Ke8 24. h4 Bxh4 25. R1d4 Bg5 26. Ra4 Bxc2+ 27. Qxc2 Kxd7 28. Rxa8 Rxa8 29. Qd3+ Ke7 30. Qd6+ 1-0

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1975.03.06"]
[Round "7"]
[White "Koelsche, Giles A"]
[Black "Erbe, T."]
[Result "1-0"]
[ECO "B27"]
[PlyCount "43"]
[EventDate "1975.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. Nf3 c5 2. e4 g6 3. d4 Bg7 4. Nc3 Qa5 5. Bd2 cxd4 6. Nd5 Qd8 7. Bc4 Nc6 8. 0-0 e6 9. Re1 Na5 10. Bd3 Nh6 11. Bg5 f6 12. Nxf6+ Bxf6 13. Bxh6 e5 14. Qd2 b6 15. Nxd4 exd4 16. e5 Be7 17. Bg7 Rg8 18. Qh6 d5 19. Qxh7 Rxg7 20. Qxg7 g5 21. Bb5+ Bd7 22. e6 1-0

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1975.03.04"]
[Round "3"]
[White "Koelsche, Giles A"]
[Black "Budinszky, Andras"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "72"]
[EventDate "1975.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Bd3 c6 6. 0-0 0-0 7. h3 Qc7 8. a4 b6 9. Qe2 e5 10. dxe5 dxe5 11. Bc4 Nh5 12. Bg5 h6 13. g4 Nf4 14. Bxf4 exf4 15. e5 Re8 16. Rfe1 Be6 17. Rad1 Nd7 18. Rd4 Bxc4 19. Qxc4 Nxe5 20. Nxe5 Rxe5 21. Red1 Rc5 22. Qd3 Bxd4 23. Qxd4 Qe5 24. Kg2 f3+ 25. Kxf3 Qh2 26. Ne4 Qxh3+ 27. Ke2 Qxg4+ 28. Kf1 Qh3+ 29. Kg1 Rf5 30. Rd3 Qh4 31. c3 Re8 32. Re3 Rfe5 33. f3 Qf4 34. Kg2 c5 35. Qd3 Kg7 36. Qd7 Qxe3 0-1

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.18"]
[Round "2"]
[White "Koelsche, Giles A"]
[Black "Lengyel, Levente"]
[Result "0-1"]
[ECO "A42"]
[PlyCount "54"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. d4 d6 4. e4 Nd7 5. Nc3 e5 6. d5 Ne7 7. Be2 0-0 8. 0-0 f5 9. Nd2 Nf6 10. Bf3 f4 11. g4 g5 12. h3 h5 13. Kh2 Qd7 14. Rg1 Kf7 15. Rg2 Ng6 16. gxh5 Qxh3+ 17. Kg1 Nh4 18. Rxg5 Bh6 19. Bg2 Qd7 20. Rg6 Nxg6 21. hxg6+ Kxg6 22. Nf3 Qg4 23. Qd3 Kh7 24. Bd2 Rg8 25. Ne1 f3 26. Bxh6 fxg2 27. Bd2 Qh5 0-1

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1973.03.12"]
[Round "2"]
[White "Koelsche, Giles A"]
[Black "Szabo, Laszlo"]
[Result "0-1"]
[ECO "A30"]
[PlyCount "44"]
[EventDate "1973.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. g3 d5 4. Bg2 Nc6 5. 0-0 e5 6. cxd5 Nxd5 7. d3 Be7 8. Nbd2 0-0 9. Nc4 Bf6 10. a4 Be6 11. Nfd2 Rc8 12. Ne4 Be7 13. f4 exf4 14. gxf4 f5 15. Ng5 Bxg5 16. fxg5 f4 17. h4 Nd4 18. e4 fxe3 19. Bxe3 Nxe3 20. Nxe3 Qd6 21. Be4 Qg3+ 22. Ng2 Bg4 0-1

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Bain, Mary"]
[Black "Koelsche, Giles A"]
[Result "0-1"]
[ECO "A09"]
[PlyCount "58"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. c4 d5 5. Na3 d4 6. d3 e5 7. 0-0 Be7 8. Ng5 0-0 9. f4 exf4 10. Bxf4 Ng4 11. Nf3 g5 12. Bd2 Ne3 13. Bxe3 dxe3 14. Nc2 g4 15. Nfe1 Bg5 16. Bd5 Ne7 17. Bh1 Be6 18. Ng2 Qc7 19. Ngxe3 Rad8 20. Qe1 f5 21. Ng2 Ng6 22. Rd1 f4 23. Nxf4 Rxf4 24. gxf4 Nxf4 25. Rxf4 Bxf4 26. Qh4 Rf8 27. Rf1 Bxh2+ 28. Qxh2 Rxf1+ 29. Kxf1 Qxh2 0-1

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Koelsche, Giles A"]
[Black "Burgar, Wesley"]
[Result "0-1"]
[ECO "A04"]
[PlyCount "100"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 f5 2. e4 fxe4 3. Ng5 Nf6 4. d3 e3 5. Bxe3 e5 6. d4 exd4 7. Qxd4 Nc6 8. Qh4 d6 9. Bd3 Ne5 10. Bxh7 Nxh7 11. Nc3 Bf5 12. 0-0-0 Nxg5 13. Qxh8 Ngf7 14. Qh5 Bg4 15. Qh7 Bxd1 16. Rxd1 Qd7 17. f4 Nc6 18. Qe4+ Qe7 19. Qf3 0-0-0 20. Rd3 Re8 21. Bf2 Qd7 22. Nb5 a6 23. Ra3 d5 24. Ra4 Re4 25. Qb3 Qf5 26. g3 Rxa4 27. Qxa4 axb5 28. Qa8+ Kd7 29. Qxf8 g6 30. Bc5 b6 31. Ba3 Nfd8 32. Qxf5+ gxf5 33. b3 Ke6 34. Kd2 Nf7 35. Bb2 d4 36. a3 Kd5 37. Kd3 b4 38. a4 Nd6 39. Bc1 Ne7 40. Bd2 c5 41. h4 Ng8 42. Be1 Nf6 43. Bd2 Nde4 44. Be1 Nh5 45. Ke2 Nexg3+ 46. Kf3 Ne4 47. Ke2 Nxf4+ 48. Kf3 Nh5 49. Ke2 Ke6 50. Kd3 Nf4+ 0-1

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Koelsche, Giles A"]
[Black "Gardner, Albert M"]
[Result "1-0"]
[ECO "A42"]
[PlyCount "33"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 g6 3. c4 Bg7 4. Nc3 c5 5. e4 Nc6 6. Be3 Bg4 7. dxc5 Qa5 8. Bd2 dxc5 9. Be2 Rd8 10. Nd5 Nb4 11. 0-0 e6 12. a3 Bxb2 13. Qb3 Bxa1 14. axb4 cxb4 15. Bxb4 Rxd5 16. cxd5 Qb6 17. Qa4+ 1-0

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Koelsche, Giles A"]
[Black "Kaufman, Larry C"]
[Result "0-1"]
[ECO "A37"]
[PlyCount "90"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e5 6. d3 Nge7 7. Nd2 d6 8. e3 Be6 9. Nd5 0-0 10. 0-0 Qd7 11. Qa4 Kh8 12. f4 Rad8 13. a3 exf4 14. Nxf4 d5 15. cxd5 Nxd5 16. Nxe6 Qxe6 17. Ne4 Qe7 18. Qb5 Ne5 19. Qxc5 Nxd3 20. Qxe7 Nxe7 21. Ng5 Kg8 22. Bxb7 Nxc1 23. Raxc1 Bxb2 24. Rc7 Bxa3 25. Ba6 Bd6 26. Rb7 Bc5 27. Kg2 Nf5 28. Kh3 Bxe3 29. Ne4 Kg7 30. g4 Nd6 31. Nxd6 Rxd6 32. Bc4 Rf6 33. Re1 Bc5 34. Re5 Rc8 35. Be6 Rc6 36. Bd5 Bd4 37. g5 Bxe5 38. gxf6+ Rxf6 39. Rxa7 Rf2 40. Ra2 Rf5 41. Kg2 Rg5+ 42. Kf3 Bxh2 43. Bxf7 Kxf7 44. Rxh2 h5 45. Rh4 Ra5 0-1

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Koelsche, Giles A"]
[Black "Sherwin, James T"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "80"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Be2 Nf6 5. Nc3 0-0 6. 0-0 Bg4 7. h3 Bxf3 8. Bxf3 Nc6 9. Be3 e5 10. dxe5 dxe5 11. Ne2 Qe7 12. c3 Nd7 13. g4 Rfd8 14. Qc2 Qh4 15. Kg2 Bh6 16. Qc1 Bxe3 17. Qxe3 Nf8 18. Kh2 Ne6 19. Bg2 Rd6 20. Rad1 Rad8 21. Rxd6 Rxd6 22. Kg1 b6 23. b4 Qf6 24. f4 exf4 25. Nxf4 Qg5 26. Qg3 Nxf4 27. Rxf4 Ne5 28. h4 Rd3 29. Qf2 Qe7 30. Qe1 Qd6 31. Qe2 Rxc3 32. g5 Qxb4 33. Qa6 Qd4+ 34. Kh1 Rc1+ 35. Rf1 Rxf1+ 36. Qxf1 c5 37. Qb5 Qd7 38. Qb3 Qg4 39. Qh3 Qxh3+ 40. Bxh3 c4 0-1

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Schwartz, Stewart"]
[Black "Koelsche, Giles A"]
[Result "0-1"]
[ECO "B43"]
[PlyCount "64"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Qc7 6. Be3 Nf6 7. Be2 Bb4 8. Qd3 Nxe4 9. Qxe4 Bxc3+ 10. Kf1 Bxb2 11. Rb1 d5 12. Qg4 f5 13. Qh5+ g6 14. Qf3 Bxd4 15. Bxd4 0-0 16. h4 h5 17. Qe3 Nc6 18. Bxh5 Nxd4 19. Bxg6 Qg7 20. Qg5 Bd7 21. c3 Nb5 22. h5 Be8 23. a4 Nd6 24. Rb6 Ne4 25. Qh4 Bc6 26. f3 Nxc3 27. Rh3 f4 28. Qg5 Rf6 29. Rh4 Nxa4 30. Rg4 Kh8 31. Rb4 Rg8 32. Qe5 Rxg6 0-1

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Sweetman, Edward"]
[Black "Koelsche, Giles A"]
[Result "0-1"]
[ECO "A46"]
[PlyCount "44"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Qc7 5. g3 Nf6 6. Bg2 e6 7. 0-0 Nc6 8. Nxc6 dxc6 9. Be3 e5 10. Nc3 Be6 11. Qe2 0-0-0 12. Rfd1 Be7 13. Na4 Nd7 14. c4 Qa5 15. Qc2 Nc5 16. b3 Nxa4 17. bxa4 Bc5 18. Bd2 Qb6 19. Rab1 Bxf2+ 20. Kf1 Qc5 21. Rdc1 Bg1 22. Bb4 Bxc4+ 0-1

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Vuille, Charles"]
[Black "Koelsche, Giles A"]
[Result "0-1"]
[ECO "B49"]
[PlyCount "82"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 Nf6 7. 0-0 Nc6 8. Be3 h5 9. f4 Na5 10. h3 d6 11. f5 Nc4 12. Bxc4 Qxc4 13. Qf3 e5 14. Nb3 Bd7 15. g4 hxg4 16. hxg4 0-0-0 17. Bb6 d5 18. Nxd5 Nxd5 19. exd5 Re8 20. Rad1 Bd6 21. Rd3 Bb4 22. Re3 Qb5 23. a3 Qxb6 24. axb4 Qxb4 25. Qe4 Qd6 26. Rc3+ Kb8 27. Nc5 Bb5 28. Rff3 Qh6 29. Rh3 Qc1+ 30. Kh2 Qxb2 31. Rb3 Qc1 32. d6 Rxh3+ 33. Rxh3 Bc6 34. d7 Qd2+ 35. Kg1 Rd8 36. Qxe5+ Ka7 37. Rh2 Qd1+ 38. Kf2 Qxc2+ 39. Kg3 Qd1 40. Re2 Qg1+ 41. Kf4 Qf1+ 0-1

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.23"]
[Round "10"]
[White "McCormick, Edgar Thomas"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "B42"]
[PlyCount "83"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c4 Qc7 4. Nc3 e6 5. d4 cxd4 6. Nxd4 Nf6 7. Bd3 Nc6 8. Nxc6 dxc6 9. 0-0 e5 10. a3 Be7 11. h3 Be6 12. Be3 Rd8 13. Qe2 Nd7 14. b4 0-0 15. c5 a5 16. f4 exf4 17. Bxf4 Ne5 18. Na4 axb4 19. axb4 Rd4 20. Rab1 Ra8 21. Nb6 Ra3 22. Bc4 Rxc4 23. Nxc4 Bxc4 24. Qxc4 Nxc4 25. Bxc7 Ra4 26. Rfc1 Na3 27. Ra1 h6 28. Rc3 Nb5 29. Rxa4 Nxc3 30. Ra8+ Kh7 31. Ra7 Nxe4 32. Rxb7 Nc3 33. Be5 Nd5 34. Bd4 Bf8 35. b5 cxb5 36. Rxb5 Kg6 37. c6 Ne7 38. c7 Nc8 39. Be5 Be7 40. Rb8 Bc5+ 41. Kf1 Na7 42. Ra8 1-0

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.22"]
[Round "9"]
[White "Koelsche, Giles A"]
[Black "Murray, Mike"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "87"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Bc4 Nf6 5. Qd3 0-0 6. Nc3 c6 7. a3 Nbd7 8. 0-0 h6 9. Ba2 e5 10. dxe5 dxe5 11. Qd6 Re8 12. Rd1 Bf8 13. Qd3 Qe7 14. Nh4 Kh7 15. Qf3 Nc5 16. h3 Be6 17. Bxe6 Nxe6 18. Rd3 Nd4 19. Qd1 Bg7 20. Nf3 Nxf3+ 21. Qxf3 Rad8 22. Rxd8 Rxd8 23. Be3 b6 24. g4 Rd7 25. Kg2 Qe6 26. b3 Ne8 27. a4 Bf8 28. Rd1 Rxd1 29. Qxd1 Qd6 30. Qc1 Qd7 31. f3 Nc7 32. a5 bxa5 33. Bxa7 Ne6 34. Be3 g5 35. Ne2 Nf4+ 36. Nxf4 exf4 37. Qd2 Qxd2+ 38. Bxd2 Bb4 39. Bxb4 axb4 40. Kf2 Kg6 41. Ke2 Kf6 42. Kd3 Ke5 43. Kc4 f6 44. Kc5 1-0

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.21"]
[Round "8"]
[White "Koelsche, Giles A"]
[Black "Macskasy, Elod"]
[Result "0-1"]
[ECO "A26"]
[PlyCount "114"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. g3 d6 4. Nc3 e5 5. Bg2 Nc6 6. 0-0 Nge7 7. d3 0-0 8. e4 h6 9. Be3 f5 10. Qd2 g5 11. exf5 Bxf5 12. Ne4 Nd4 13. Bxd4 exd4 14. h4 g4 15. Nh2 Qd7 16. f3 gxf3 17. Bxf3 Ng6 18. Nf2 Ne5 19. Bxb7 Rae8 20. Bd5+ Kh8 21. Rae1 Bh3 22. Bg2 Bxg2 23. Kxg2 Qc6+ 24. Kg1 Rf3 25. Ne4 Rxd3 26. Qg2 Nxc4 27. Ng4 Ne3 28. Nxe3 Rxe3 29. Rxe3 dxe3 30. Nc3 Qxg2+ 31. Kxg2 c6 32. Re1 d5 33. Nd1 d4 34. Nf2 e2 35. b3 h5 36. Nd3 Re3 37. Nf4 d3 38. Nxd3 Rxd3 39. Rxe2 Kg8 40. Rf2 Bc3 41. Rc2 Rd2+ 42. Rxd2 Bxd2 43. g4 hxg4 44. Kg3 Kf7 45. Kxg4 Ke6 46. Kf3 Kd5 47. Ke2 Bh6 48. Kd3 Kc5 49. a3 a5 50. Kc3 Bg7+ 51. Kc2 Kd4 52. h5 Bh6 53. Kb2 Kd3 54. a4 Bg7+ 55. Ka3 c5 56. Ka2 Kc2 57. Ka3 Kc3 0-1

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.19"]
[Round "6"]
[White "Koelsche, Giles A"]
[Black "Benko, Pal C"]
[Result "0-1"]
[ECO "E66"]
[PlyCount "60"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. 0-0 Nc6 7. d4 a6 8. d5 Na5 9. Nd2 c5 10. Rb1 Rb8 11. b4 cxb4 12. Rxb4 Qc7 13. Na4 b5 14. cxb5 axb5 15. Nb2 Nxd5 16. Bxd5 Qc5 17. Nb3 Qxb4 18. Bd2 Qa3 19. Bxa5 Qxb2 20. Bc7 Bh3 21. Re1 Rbc8 22. Ba5 Qxa2 23. Bb4 Qc2 24. Na5 Qxd1 25. Rxd1 Rc2 26. e3 Rfc8 27. f4 Bc3 28. Bxc3 R8xc3 29. Re1 e6 30. Be4 Ra2 0-1

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.18"]
[Round "5"]
[White "Schutt, Raymond Wayne"]
[Black "Koelsche, Giles A"]
[Result "0-1"]
[ECO "E42"]
[PlyCount "80"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 d5 6. a3 cxd4 7. exd4 Be7 8. Nf4 0-0 9. cxd5 exd5 10. Qb3 Nc6 11. Be3 Na5 12. Qa2 Be6 13. Nxe6 fxe6 14. b4 Rc8 15. Rc1 Nc4 16. Bxc4 Rxc4 17. Ne2 b5 18. Rxc4 dxc4 19. 0-0 Nd5 20. Bd2 Bd6 21. Nc3 a6 22. Nxd5 exd5 23. Be3 Bf4 24. Qd2 Bxe3 25. Qxe3 Re8 26. Qf3 Re4 27. Rd1 Qb6 28. Qh5 Qxd4 29. Kf1 Qe5 30. Qh3 Qe8 31. f3 Re5 32. f4 Re4 33. Qf5 d4 34. g3 d3 35. Qd5+ Qe6 36. Qa8+ Kf7 37. f5 Qxf5+ 38. Kg1 Re8 39. Qd5+ Qe6 40. Rf1+ Kg6 0-1

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.17"]
[Round "3"]
[White "Baroudi, Ziad"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "B25"]
[PlyCount "61"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 Nf6 6. 0-0 0-0 7. d3 Rb8 8. a4 a6 9. h3 d6 10. Nh2 b5 11. axb5 axb5 12. f4 Qb6 13. Be3 e5 14. f5 b4 15. Ne2 gxf5 16. exf5 d5 17. Qd2 Ne7 18. g4 d4 19. Bh6 Ne4 20. dxe4 Qxh6 21. g5 Qd6 22. f6 Bh8 23. fxe7 Qxe7 24. b3 f6 25. h4 Be6 26. Ng3 c4 27. Nf5 Qc5 28. Nh6+ Kg7 29. gxf6+ Rxf6 30. Rxf6 Kxf6 31. N2g4+ 1-0

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.13"]
[Round "10"]
[White "Marchand, Erich Watkinson"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "A28"]
[PlyCount "93"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 Bc5 5. Nxe5 Bxf2+ 6. Kxf2 Nxe5 7. d4 Ng6 8. e5 Ng8 9. g3 d6 10. exd6 Qxd6 11. Bg2 Qf6+ 12. Kg1 c6 13. Ne4 Qd8 14. c5 N8e7 15. Nd6+ Kf8 16. h4 h5 17. Bg5 Be6 18. Kh2 Qd7 19. Rf1 Nf5 20. d5 cxd5 21. Nxf5 Bxf5 22. Qxd5 Be6 23. Qxd7 Bxd7 24. Bxb7 Re8 25. c6 Be6 26. c7 f6 27. Be3 Ne5 28. Bxa7 Ng4+ 29. Kg1 Kf7 30. a4 Rhg8 31. Rac1 Ne5 32. Rc3 Nc4 33. c8Q Rxc8 34. Bxc8 Rxc8 35. b3 Ra8 36. Bd4 Nd2 37. Re1 Nxb3 38. Rc7+ Kg6 39. Ba7 Bg4 40. Rb1 Nd2 41. Rb8 Bf3 42. Rxa8 Bxa8 43. Bc5 Nf3+ 44. Kf2 Ne5 45. Bf8 Nf7 46. a5 f5 47. a6 1-0

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.11"]
[Round "8"]
[White "Weinstein, Raymond Allen"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "E54"]
[PlyCount "75"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 0-0 7. 0-0 cxd4 8. exd4 d5 9. Bg5 dxc4 10. Bxc4 Be7 11. Rc1 b6 12. Bd3 Bb7 13. Bb1 Rc8 14. a3 h6 15. Bh4 g6 16. Re1 Nh5 17. Bxe7 Nxe7 18. Ne4 Nd5 19. Rxc8 Bxc8 20. Ne5 Bb7 21. Qd2 Kg7 22. Rc1 f5 23. Ng3 Nhf4 24. Nf3 Qf6 25. Bd3 Nxd3 26. Qxd3 Rd8 27. h3 h5 28. h4 Ne7 29. Ng5 Nc6 30. Qe3 Rd6 31. Ne2 Ba6 32. Nf4 Bc8 33. d5 exd5 34. Nxd5 Rxd5 35. Rxc6 Rd1+ 36. Kh2 f4 37. Qb3 Rd3 38. Rc7+ 1-0

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.07"]
[Round "4"]
[White "Koelsche, Giles A"]
[Black "Otteson, Milton"]
[Result "1-0"]
[ECO "A15"]
[PlyCount "63"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b4 g6 3. Bb2 Bg7 4. c4 0-0 5. g3 d6 6. Bg2 e5 7. Nc3 a5 8. b5 Nbd7 9. 0-0 Nh5 10. e4 f5 11. exf5 gxf5 12. Nxe5 Nxe5 13. Qxh5 f4 14. Bd5+ Kh8 15. Be4 h6 16. f3 Be6 17. Nd5 fxg3 18. hxg3 Bf7 19. Qh3 c6 20. Ne3 Qe8 21. f4 Be6 22. Bf5 Bxf5 23. Nxf5 Rxf5 24. Qxf5 Nxc4 25. Bxg7+ Kxg7 26. Rfe1 Qf7 27. Qg4+ Kh7 28. d3 Nb6 29. bxc6 bxc6 30. Kf2 Nd5 31. Re6 Rg8 32. Rxh6+ 1-0

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.05"]
[Round "2"]
[White "Koelsche, Giles A"]
[Black "Avram, Herbert Mois"]
[Result "0-1"]
[ECO "A05"]
[PlyCount "100"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b4 g6 3. Bb2 Bg7 4. g3 c6 5. Bg2 Qb6 6. Bd4 Qxb4 7. 0-0 0-0 8. Nc3 d6 9. Rb1 Qa5 10. e4 Nbd7 11. Re1 e5 12. Be3 Ng4 13. h3 Nxe3 14. Rxe3 Bh6 15. Rd3 Nc5 16. Rxd6 Qc7 17. d4 Qxd6 18. dxc5 Qxc5 19. Na4 Qe7 20. Nb2 Rd8 21. Qe1 f6 22. Qc3 Be6 23. a4 b6 24. Bf1 Bf8 25. Nd3 Rac8 26. g4 h6 27. Nb4 Qc5 28. Qb2 Rd7 29. Nd3 Qa3 30. Qxa3 Bxa3 31. Ra1 Bf8 32. Kh2 c5 33. c4 Rcd8 34. Nb2 f5 35. exf5 gxf5 36. Nxe5 Rd2 37. Nbd3 fxg4 38. hxg4 Bd6 39. Kg1 Rf8 40. f3 Rxd3 41. Nxd3 Rxf3 42. Nf2 Kf7 43. Be2 Rb3 44. a5 Be5 45. Ra2 Bd4 46. axb6 axb6 47. Kf1 Kf6 48. Ne4+ Ke5 49. Nd2 Rg3 50. Nf3+ Rxf3+ 0-1

[Event "Pan American-ch02"]
[Site "Los Angeles"]
[Date "1954.07.19"]
[Round "9"]
[White "Koelsche, Giles A"]
[Black "Almgren, Sven"]
[Result "0-1"]
[ECO "A14"]
[PlyCount "96"]
[EventDate "1954.07.10"]
[EventType "swiss"]
[EventRounds "14"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. b3 Be7 5. Bg2 0-0 6. Bb2 Nbd7 7. 0-0 b6 8. d3 Bb7 9. Nbd2 c5 10. e3 Qc7 11. Rc1 Rfe8 12. Qc2 Rad8 13. cxd5 Nxd5 14. a3 Bf6 15. d4 Rc8 16. Qb1 Qb8 17. e4 Nc7 18. e5 Be7 19. Ne4 cxd4 20. a4 Nd5 21. Bxd4 h6 22. Rfe1 Nb4 23. Ba1 Nc5 24. Nxc5 Bxc5 25. Nd2 Red8 26. Bxb7 Qxb7 27. Ne4 Nd3 28. Rxc5 bxc5 29. Re3 c4 30. Nd6 Qxb3 31. Qxb3 cxb3 32. Nxc8 Rxc8 33. Rxd3 Rc1+ 34. Kg2 Rxa1 35. Rxb3 Rxa4 36. h3 a5 37. Rb8+ Kh7 38. Ra8 Kg6 39. g4 Ra1 40. Ra6 h5 41. f4 hxg4 42. hxg4 a4 43. Kf2 a3 44. f5+ Kg5 45. fxe6 fxe6 46. Rxe6 a2 47. Ra6 Rh1 48. e6 a1Q 0-1

[Event "Pan American-ch02"]
[Site "Los Angeles"]
[Date "1954.07.16"]
[Round "6"]
[White "Koelsche, Giles A"]
[Black "Smith, Philip D"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "84"]
[EventDate "1954.07.10"]
[EventType "swiss"]
[EventRounds "14"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b4 e6 3. a3 a5 4. b5 d5 5. Bb2 c6 6. e3 cxb5 7. Bxb5+ Bd7 8. c4 Bxb5 9. cxb5 Nbd7 10. 0-0 Bd6 11. d4 0-0 12. Qd3 Ne4 13. Nbd2 f5 14. Rac1 Qf6 15. Rc2 g5 16. g3 h5 17. Ne1 Nxd2 18. Rxd2 f4 19. e4 Qg6 20. Re2 fxg3 21. hxg3 Rac8 22. exd5 Qxd3 23. Nxd3 exd5 24. Rfe1 Rf3 25. Re3 Rxe3 26. Rxe3 Kf7 27. Kg2 Rc2 28. Kf1 Nb6 29. Re2 Rxe2 30. Kxe2 Nc4 31. a4 Nxb2 32. Nxb2 Kf6 33. Kf3 Kf5 34. Nd1 Ba3 35. Ne3+ Ke6 36. Nc2 Bc1 37. Kg2 h4 38. gxh4 gxh4 39. Kh3 Kf5 40. f3 Kf4 41. Ne1 Be3 42. Kxh4 Bf2+ 0-1

[Event "US Open-54"]
[Site "Milwaukee"]
[Date "1953.08.12"]
[Round "3"]
[White "Kaminski, Amos"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "B70"]
[PlyCount "67"]
[EventDate "1953.08.10"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Bg7 7. Bg2 0-0 8. 0-0 Nbd7 9. Kh1 a6 10. f4 Rb8 11. Be3 Qc7 12. Rb1 Nb6 13. f5 Nc4 14. Bg1 Bh6 15. Nb3 Ne3 16. Bxe3 Bxe3 17. Qe2 Ba7 18. Rbe1 Re8 19. g4 g5 20. h4 h6 21. Qd2 d5 22. e5 Ne4 23. Nxe4 dxe4 24. Bxe4 Qxe5 25. hxg5 hxg5 26. f6 Kf8 27. Bc6 Qg3 28. Bxe8 Bxg4 29. Bd7 Bxd7 30. Qxd7 exf6 31. Re7 Qh4+ 32. Kg2 Qc4 33. Rxf6 Qxc2+ 34. Kg3 1-0

[Event "US Open-54"]
[Site "Milwaukee"]
[Date "1953.08.10"]
[Round "1"]
[White "Koelsche, Giles A"]
[Black "Anderson, Frank Ross"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "72"]
[EventDate "1953.08.10"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b4 d5 3. Bb2 Bg4 4. Ne5 Bh5 5. c4 e6 6. Qa4+ Nbd7 7. e3 a5 8. bxa5 c6 9. Nxd7 Nxd7 10. d4 Rxa5 11. Qb3 Ra7 12. Nd2 Bd6 13. Bd3 0-0 14. 0-0 Nf6 15. h3 Re8 16. f4 Bg6 17. Bxg6 hxg6 18. Qc2 Qc7 19. c5 Be7 20. a4 Rea8 21. Bc3 b6 22. cxb6 Qxb6 23. Rfb1 Qa6 24. a5 c5 25. g4 Rc7 26. Qb2 Qd3 27. Nf1 cxd4 28. Bxd4 Rc2 29. Qb5 Qe4 30. Nd2 Rxd2 31. Qf1 e5 32. Bb6 Bd8 33. Ra3 Bxb6 34. Rxb6 exf4 35. exf4 Qd4+ 36. Kh1 Rd1 0-1

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.25"]
[Round "12"]
[White "Koelsche, Giles A"]
[Black "Sharp, Charles"]
[Result "0-1"]
[ECO "A14"]
[PlyCount "58"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 e6 5. g3 Nbd7 6. Bg2 Be7 7. 0-0 0-0 8. Qc2 Re8 9. d3 Bf8 10. e4 e5 11. cxd5 cxd5 12. Nc3 d4 13. Nb5 Re6 14. Bxd4 Rc6 15. Qb2 exd4 16. Nfxd4 Rb6 17. Nc3 Nc5 18. Nde2 Nxd3 19. Rad1 Rd6 20. Qb1 Ng4 21. h3 Ngxf2 22. Rxf2 Nxf2 23. Kxf2 Rxd1 24. Qxd1 Qxd1 25. Nxd1 Bd7 26. Nd4 Bc5 27. Ke3 Rd8 28. Nc3 Bxd4+ 29. Kxd4 Bxh3+ 0-1

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.24"]
[Round "11"]
[White "Mengarini, Ariel"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "B72"]
[PlyCount "71"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. f4 0-0 9. Bf3 Qb6 10. Qd3 Nb4 11. Qd2 Bg4 12. 0-0 Bxf3 13. gxf3 Qd8 14. Rad1 Nc6 15. Qf2 a6 16. e5 Nh5 17. Nde2 Qb8 18. exd6 exd6 19. f5 Ne7 20. fxg6 fxg6 21. Bd4 Bh6 22. Bb6 Rf5 23. Kh1 d5 24. Ng3 Rg5 25. f4 Nxg3+ 26. hxg3 Rh5+ 27. Kg2 Rf5 28. Rfe1 Bxf4 29. gxf4 Rxf4 30. Qe2 Nf5 31. Nxd5 Nh4+ 32. Kh1 Nf3 33. Nxf4 Qxf4 34. Qe6+ Kg7 35. Rd7+ Kh8 36. Qe8+ 1-0

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.23"]
[Round "10"]
[White "Koelsche, Giles A"]
[Black "Piatigorsky, Jacqueline"]
[Result "1-0"]
[ECO "A13"]
[PlyCount "67"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. b3 c5 4. Bb2 Nc6 5. g3 d4 6. Bg2 Bd6 7. d3 Nf6 8. Na3 a6 9. Nc2 e5 10. 0-0 0-0 11. e3 Bg4 12. Qd2 Qd7 13. b4 b5 14. cxb5 axb5 15. bxc5 Bxc5 16. Rfc1 Ra4 17. Ncxd4 Bxd4 18. exd4 Bxf3 19. Bxf3 Nxd4 20. Bg2 h6 21. Qd1 Rd8 22. Rc5 Qa7 23. Rxe5 Rxa2 24. Rxa2 Qxa2 25. Bxd4 Rxd4 26. Rxb5 Ng4 27. Rb8+ Kh7 28. Qf3 Qe6 29. Bf1 Ne5 30. Qe3 Qd6 31. Rb7 f6 32. Bh3 Kg6 33. Bg2 Nxd3 34. Qe8+ 1-0

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.21"]
[Round "8"]
[White "Crittenden, Charles C"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "A28"]
[PlyCount "87"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. Ndb5 0-0 9. Qb3 Ba5 10. 0-0-0 a6 11. Nd4 Ng6 12. Bg3 Re8 13. f3 Bxc3 14. Qxc3 d5 15. cxd5 Nxd5 16. Qd2 Ne3 17. Re1 Qd5 18. Nc2 Qc5 19. Qc3 Qg5 20. Qd2 Bf5 21. Nxe3 Rad8 22. h4 Qf6 23. Nd5 Qc6+ 24. Qc3 Qxd5 25. e4 Qxa2 26. Bc4 Qa1+ 27. Kc2 Qa4+ 28. Bb3 Qb5 29. exf5 Qxf5+ 30. Kc1 Rxe1+ 31. Rxe1 Nxh4 32. Bc2 Qg5+ 33. Qe3 Nxg2 34. Qxg5 hxg5 35. Re7 Nh4 36. Rxc7 Nxf3 37. Bb3 Nd4 38. Bxf7+ Kf8 39. Be5 Nf5 40. Bb3 Ne7 41. Bc2 Rd5 42. Bc3 b6 43. Bb4 Re5 44. Bg6 1-0

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.19"]
[Round "6"]
[White "Koelsche, Giles A"]
[Black "Le Cornu, Phillip"]
[Result "0-1"]
[ECO "A34"]
[PlyCount "126"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d5 6. cxd5 Nxd5 7. 0-0 c5 8. Qb3 Nc7 9. Qc4 Ne6 10. e3 Nc6 11. Rd1 a6 12. Qe2 Qb6 13. b3 Qa7 14. Bb2 Rd8 15. d3 b5 16. Ne4 Bb7 17. a4 Qb6 18. Bxg7 Kxg7 19. Bh3 Nb4 20. Bxe6 Bxe4 21. dxe4 Rxd1+ 22. Rxd1 Qxe6 23. Qb2+ Kg8 24. e5 Qg4 25. Kg2 Qe4 26. Qc3 g5 27. Qxc5 g4 28. Rd4 Nd3 29. Rxe4 gxf3+ 30. Kxf3 Nxc5 31. Rg4+ Kf8 32. axb5 axb5 33. Rb4 Rb8 34. Ke2 Na6 35. Rh4 Kg7 36. b4 Rd8 37. Rg4+ Kh6 38. Re4 Kg6 39. g4 h5 40. h3 hxg4 41. hxg4 Rd5 42. f4 Nc7 43. Kf3 e6 44. Ke2 Na6 45. Kf2 Nb8 46. Ke2 Nc6 47. Kf2 Rd2+ 48. Kg3 Rb2 49. f5+ Kg5 50. fxe6 fxe6 51. Rf4 Rxb4 52. Rf6 Rxg4+ 53. Kf2 Nxe5 54. Rxe6 Kf5 55. Rb6 Rb4 56. Ke2 Rb2+ 57. Kd1 Ke4 58. Re6 Kd5 59. Re8 b4 60. Rd8+ Kc4 61. Kc1 Re2 62. Rc8+ Kb3 63. Kd1 Rxe3 0-1

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.18"]
[Round "5"]
[White "Donovan, Jeremiah"]
[Black "Koelsche, Giles A"]
[Result "1/2-1/2"]
[ECO "E39"]
[PlyCount "91"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. Nf3 Nc6 6. dxc5 0-0 7. a3 Bxc5 8. b4 Be7 9. Bb2 b6 10. e4 d6 11. Rd1 Qc7 12. Nb5 Qb8 13. Bd3 h6 14. 0-0 Bb7 15. Qb3 Rd8 16. Bb1 a6 17. Nbd4 Nxd4 18. Bxd4 Nd7 19. Qc2 e5 20. Be3 Qc7 21. Nd2 Rac8 22. Qb3 Nf6 23. f3 b5 24. Ba2 Bf8 25. Rc1 Qe7 26. Bb6 Rd7 27. cxb5 Rxc1 28. Rxc1 axb5 29. Qc2 d5 30. exd5 Bxd5 31. Bb1 Qe6 32. Bf2 g6 33. Re1 Bd6 34. Qd3 Bc6 35. Qe3 Kg7 36. Bg3 Bb8 37. Qc3 Ba7+ 38. Bf2 Bxf2+ 39. Kxf2 Re7 40. f4 e4 41. Nxe4 Bxe4 42. Rxe4 Qb6+ 43. Qd4 Qa7 44. Kf1 Rd7 45. Qxa7 Rxa7 46. Re3 1/2-1/2

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.17"]
[Round "4"]
[White "Koelsche, Giles A"]
[Black "Mednis, Edmar John"]
[Result "1/2-1/2"]
[ECO "A13"]
[PlyCount "78"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. 0-0 Be7 7. Nc3 0-0 8. Qxc4 a6 9. d4 b5 10. Qb3 Bb7 11. Qc2 c5 12. Rd1 Rc8 13. dxc5 Bxc5 14. Bg5 Qb6 15. e3 h6 16. Bxf6 Nxf6 17. Qe2 Bb4 18. Rac1 Bxc3 19. bxc3 Ne4 20. c4 Rxc4 21. Rxc4 bxc4 22. Qxc4 Qb2 23. Rf1 Bd5 24. Qxa6 Ra8 25. Qd3 Rxa2 26. Qd4 Qe2 27. Qd1 Qxd1 28. Rxd1 Nxf2 29. Rd2 Rxd2 30. Nxd2 Bxg2 31. Kxf2 Bc6 32. e4 f6 33. h4 Kf7 34. h5 Ke7 35. g4 Kd6 36. Ke3 f5 37. exf5 exf5 38. Kf4 fxg4 39. Kxg4 Bd7+ 1/2-1/2

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.15"]
[Round "2"]
[White "Koelsche, Giles A"]
[Black "Fleischer, Myron"]
[Result "1-0"]
[ECO "D34"]
[PlyCount "97"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. b3 c5 5. Bb2 Nc6 6. Bg2 Be7 7. 0-0 0-0 8. cxd5 exd5 9. d4 Ne4 10. Nc3 Bf6 11. e3 Bg4 12. Ne2 Re8 13. h3 Bf5 14. g4 Be6 15. Nf4 g6 16. Rc1 cxd4 17. Nxd4 Qb6 18. Ndxe6 fxe6 19. Bxf6 Nxf6 20. g5 Nh5 21. Nxh5 gxh5 22. Qxh5 Qc7 23. Rc3 Qf7 24. Qg4 Rf8 25. f4 d4 26. Rd3 dxe3 27. Rxe3 Nd4 28. Re4 Nf5 29. Re5 Rad8 30. Be4 Rd2 31. Rf2 Rxf2 32. Kxf2 Nd4 33. Ke3 Nf5+ 34. Qxf5 exf5 35. Bd5 Kg7 36. Bxf7 Rxf7 37. Kd4 Kg6 38. Re6+ Kg7 39. Ke5 Rc7 40. Kxf5 Rc5+ 41. Kg4 Kf7 42. Rf6+ Kg7 43. Rd6 Rc7 44. h4 b5 45. h5 Re7 46. Kf5 Rc7 47. Ke6 Rc2 48. Rd7+ Kf8 49. Rxa7 1-0

[Event "US Open-53"]
[Site "Tampa"]
[Date "1952.07.14"]
[Round "1"]
[White "Klugman, Reuben"]
[Black "Koelsche, Giles A"]
[Result "1/2-1/2"]
[ECO "E42"]
[PlyCount "93"]
[EventDate "1952.07.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 0-0 6. a3 cxd4 7. exd4 Be7 8. Ng3 d5 9. Be3 Nc6 10. Rc1 e5 11. dxe5 d4 12. exf6 Bxf6 13. Bxd4 Bxd4 14. Qc2 Qh4 15. Bd3 Re8+ 16. Nce2 Ne5 17. Be4 f5 18. Bd5+ Kh8 19. h3 Bxb2 20. Rb1 Bxa3 21. 0-0 Bc5 22. Nxf5 Bxf5 23. Qxf5 Rab8 24. Bxb7 Qxc4 25. Be4 Ng6 26. Rxb8 Rxb8 27. Nf4 Re8 28. Re1 Qc3 29. Nd3 Bb6 30. Rc1 Qa3 31. Rc8 Rf8 32. Rxf8+ Qxf8 33. Qe6 Qe7 34. Qc8+ Qf8 35. Qe6 Qe7 36. Qg4 Nf8 37. h4 Nd7 38. Bc6 Nf6 39. Qc8+ Qd8 40. Qxd8+ Bxd8 41. f3 Bb6+ 42. Kf1 Bc7 43. g4 Bg3 44. h5 h6 45. Nc5 Kg8 46. Ne4 Nxe4 47. Bxe4 1/2-1/2

[Event "US Open-50"]
[Site "Omaha"]
[Date "1949.07.16"]
[Round "6"]
[White "Shaffer, Joseph"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "E26"]
[PlyCount "83"]
[EventDate "1949.07.11"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Qxd5 8. c4 Qc6 9. Nf3 Nbd7 10. Bd3 b6 11. 0-0 Bb7 12. Bb2 0-0 13. Qe2 Ne4 14. Rfd1 f5 15. Ne1 Ndf6 16. f3 Nd6 17. Rac1 Rae8 18. Bb1 g5 19. Nd3 Nd7 20. Qd2 Nf7 21. Re1 g4 22. e4 cxd4 23. Bxd4 e5 24. Bb2 gxf3 25. gxf3 Kh8 26. Kh1 fxe4 27. fxe4 Rg8 28. Nb4 Qg6 29. Nd5 Nc5 30. Rg1 Nxe4 31. Qe3 Nfg5 32. Rxg5 Qxg5 33. Qxe4 Rg7 34. Rf1 b5 35. Qf3 bxc4 36. Be4 Reg8 37. Qf6 Bxd5 38. Qxg7+ Rxg7 39. Bxd5 h5 40. Rf8+ Rg8 41. Rxg8+ Qxg8 42. Bxe5+ 1-0

[Event "US Open-50"]
[Site "Omaha"]
[Date "1949.07.14"]
[Round "4"]
[White "Donovan, Jeremiah"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "E34"]
[PlyCount "51"]
[EventDate "1949.07.11"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. Nf3 Nbd7 7. Bd2 Bxc3 8. Bxc3 Ne4 9. Bb4 c5 10. dxc5 Nexc5 11. Rd1 Qe4 12. Qc3 Na4 13. Qd2 Nab6 14. Qd6 Nd5 15. Rd4 Qb1+ 16. Rd1 Qe4 17. Ba3 N7b6 18. e3 Bd7 19. Bd3 Qa4 20. 0-0 Rd8 21. e4 Bc6 22. Qg3 Ne7 23. Qxg7 Rg8 24. Qf6 Ned5 25. Qh4 Nb4 26. Bc2 1-0

[Event "US Open-50"]
[Site "Omaha"]
[Date "1949.07.13"]
[Round "3"]
[White "Koelsche, Giles A"]
[Black "Young, Woodrow"]
[Result "1-0"]
[ECO "D20"]
[PlyCount "33"]
[EventDate "1949.07.11"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 dxc4 3. e4 Nc6 4. Bxc4 e6 5. d4 Nf6 6. Nc3 Bb4 7. Qd3 Na5 8. Bb5+ Bd7 9. 0-0 c6 10. Ba4 b5 11. Bc2 h6 12. Ne5 Rc8 13. Be3 Qc7 14. Rac1 Bd6 15. f4 0-0 16. Nxd7 Nxd7 17. e5 1-0

[Event "US Open-50"]
[Site "Omaha"]
[Date "1949.07.12"]
[Round "2"]
[White "Kramer, George Mortimer"]
[Black "Koelsche, Giles A"]
[Result "1/2-1/2"]
[ECO "E46"]
[PlyCount "88"]
[EventDate "1949.07.11"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nge2 d5 6. a3 Be7 7. c5 c6 8. f4 Nbd7 9. Ng3 a5 10. Bd3 b6 11. cxb6 Qxb6 12. 0-0 c5 13. Kh1 Bb7 14. Nce2 a4 15. Nc3 Bc6 16. Bc2 Qa6 17. f5 e5 18. dxe5 Nxe5 19. Rf4 Rfd8 20. h3 h6 21. Nh5 d4 22. Nxf6+ Bxf6 23. Ne4 d3 24. Nxf6+ gxf6 25. Bb1 d2 26. Bxd2 Qb7 27. Rf2 Qxb2 28. Bc2 c4 29. Qc1 c3 30. Be1 Rac8 31. Rb1 Qxc1 32. Rxc1 Nd3 33. Bxd3 Rxd3 34. Rxc3 Rd1 35. Re2 Rxe1+ 36. Rxe1 Bxg2+ 37. Kxg2 Rxc3 38. Kf3 Rxa3 39. Rg1+ Kf8 40. Rc1 Rd3 41. Rc8+ Kg7 42. Ra8 a3 43. h4 h5 44. Kf4 Rc3 1/2-1/2

[Event "Winnipeg-Minneapolis m"]
[Site "Winnipeg"]
[Date "1949.??.??"]
[Round "?"]
[White "Yanofsky, Daniel Abraham"]
[Black "Koelsche, Giles A"]
[Result "1-0"]
[ECO "B74"]
[PlyCount "79"]
[EventDate "1949.??.??"]
[EventType "match"]
[EventRounds "1"]
[EventCountry "CAN"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. 0-0 Nc6 8. Nb3 0-0 9. Be3 Be6 10. f4 Na5 11. f5 Bc4 12. Bd3 d5 13. Nxa5 Qxa5 14. e5 Bxd3 15. cxd3 Nd7 16. d4 gxf5 17. Rxf5 e6 18. Rh5 f5 19. Rh4 Rf7 20. Qh5 Nf8 21. Rf1 Qb6 22. Na4 Qc6 23. b3 Qe8 24. Rh3 Rc7 25. Qh4 Rac8 26. Bg5 b6 27. Nb2 Rc2 28. Nd3 R8c3 29. Nf4 Rxh3 30. Qxh3 Rxa2 31. Rc1 a5 32. Qg3 a4 33. Bf6 Ng6 34. Bxg7 Nxf4 35. Bh6+ Qg6 36. Bxf4 Qxg3 37. hxg3 axb3 38. Rb1 b2 39. Kf2 b5 40. Bd2 1-0

