[Event "SUI-chT"]
[Site "Switzerland"]
[Date "2010.06.13"]
[Round "4.4"]
[White "Kaenel, Hansjuerg"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2332"]
[BlackElo "2214"]
[PlyCount "63"]
[EventDate "2010.02.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Riehen"]
[BlackTeam "Bern"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "SUI"]

1. Nf3 Nf6 2. e3 d5 3. c4 e6 4. b3 Be7 5. Bb2 0-0 6. Be2 b6 7. 0-0 Bb7 8. d3 c5 9. Nbd2 Nc6 10. a3 Nd7 11. Rb1 f5 12. d4 Bd6 13. dxc5 bxc5 14. cxd5 exd5 15. Nc4 Nf6 16. Bxf6 Rxf6 17. Qxd5+ Kf8 18. Nxd6 Qxd6 19. Qxd6+ Rxd6 20. Rfc1 Rd5 21. Ng5 Ke7 22. Nxh7 Ne5 23. Ng5 Rd2 24. Bf1 Rc8 25. Rc3 Kf6 26. f4 Ra2 27. Rd1 Rc6 28. Nh7+ Kg6 29. Nf8+ Kf7 30. Nd7 Ng4 31. h3 Nf6 32. Ne5+ 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "2010.02.14"]
[Round "1.6"]
[White "Serban, Vlad"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2226"]
[BlackElo "2214"]
[PlyCount "63"]
[EventDate "2010.02.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Lausanne"]
[BlackTeam "Bern"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "SUI"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 Be7 7. 0-0 a6 8. f4 Qc7 9. Kh1 b5 10. e5 dxe5 11. fxe5 Qxe5 12. Bf4 Qc5 13. Bf3 Qa7 14. Ndxb5 axb5 15. Nxb5 Qa4 16. Nc7+ Kf8 17. Bxa8 Nbd7 18. Bd6 Nb6 19. Bf3 Bd7 20. b3 Qa5 21. c4 Nc8 22. Bg3 h5 23. Nb5 Bxb5 24. cxb5 Qxb5 25. Rc1 Nb6 26. a4 Qe8 27. Bc6 Qd8 28. a5 Nc8 29. Bb7 Na7 30. Qxd8+ Bxd8 31. Bb8 Nb5 32. a6 1-0

[Event "Lenk op 21st"]
[Site "Lenk"]
[Date "2009.04.12"]
[Round "6"]
[White "Gast, Jonathan"]
[Black "Hollenstein, Walter"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2256"]
[BlackElo "1917"]
[PlyCount "37"]
[EventDate "2009.04.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Nf6 5. Nf3 Bf5 6. d3 e6 7. Bd2 c6 8. Nd5 Qd8 9. Nxf6+ gxf6 10. Nh4 Bg6 11. Qf3 Nd7 12. Qh3 Bg7 13. 0-0 Ne5 14. Bb3 Qe7 15. f4 Nd7 16. f5 exf5 17. Rae1 Ne5 18. d4 0-0-0 19. Bc3 1-0

[Event "Lenk op 21st"]
[Site "Lenk"]
[Date "2009.04.11"]
[Round "5"]
[White "Gast, Jonathan"]
[Black "Kuenzli, Simon"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "2256"]
[BlackElo "2022"]
[PlyCount "116"]
[EventDate "2009.04.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 b5 7. Bf3 e5 8. Nb3 Bb7 9. 0-0 Be7 10. Re1 0-0 11. a3 Nbd7 12. g3 Rc8 13. Bg5 Nb6 14. Bxf6 Bxf6 15. Nc1 Nc4 16. Nd3 Nxb2 17. Nxb2 Rxc3 18. Nd3 Qc7 19. a4 Rc8 20. Bg4 Rd8 21. axb5 axb5 22. Rb1 d5 23. Bf3 dxe4 24. Bxe4 Bxe4 25. Rxe4 Rxc2 26. Qf3 Rc3 27. Re3 Bg5 28. Rxe5 Rcxd3 29. Qxd3 Qxe5 30. Rxb5 Qa1+ 31. Rb1 Rxd3 32. Rxa1 g6 33. h4 Bf6 34. Ra2 Rb3 35. Ra4 Rb2 36. Kf1 Kg7 37. Re4 Rd2 38. Ke1 Rd4 39. Re2 Bxh4 40. gxh4 Rxh4 41. Kf1 Rg4 42. f3 Rg5 43. Kf2 h5 44. Re4 Ra5 45. Rb4 g5 46. Rb3 Ra4 47. Kg3 Kg6 48. Rc3 h4+ 49. Kf2 Ra2+ 50. Ke3 h3 51. Rc8 Kg7 52. Rc5 f6 53. Rc7+ Kg6 54. Rc8 Ra4 55. Kf2 Rh4 56. Rc1 h2 57. Rh1 Kf5 58. Kg3 Rh8 0-1

[Event "Lenk op 21st"]
[Site "Lenk"]
[Date "2009.04.11"]
[Round "4"]
[White "Georgiadis, Nico"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "B61"]
[WhiteElo "2056"]
[BlackElo "2256"]
[PlyCount "61"]
[EventDate "2009.04.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 7. Qd2 a6 8. 0-0-0 Nxd4 9. Qxd4 e6 10. f4 Bc6 11. Bxf6 Qxf6 12. Qe3 Be7 13. Be2 0-0 14. h4 Rfd8 15. g4 Bf8 16. g5 Qe7 17. Bc4 b5 18. Bb3 a5 19. a3 Qc7 20. Rhe1 b4 21. axb4 axb4 22. Nb1 d5 23. f5 exf5 24. exf5 Qa7 25. Qf3 Bc5 26. g6 Bf2 27. gxf7+ Kh8 28. Re6 Bd7 29. Re7 Bxh4 30. Qh5 Bxe7 31. Qxh7+ 1-0

[Event "Lenk op 21st"]
[Site "Lenk"]
[Date "2009.04.10"]
[Round "3"]
[White "Gast, Jonathan"]
[Black "Lumsdon, Andrew"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2256"]
[BlackElo "2052"]
[PlyCount "123"]
[EventDate "2009.04.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. Ne2 Bg4 7. f3 Bd7 8. Bf4 e5 9. dxe5 Nxe5 10. 0-0 Bd6 11. Kh1 Ne7 12. Bc2 N7g6 13. Bg3 0-0 14. Nd2 Bb5 15. Re1 Rfe8 16. Nd4 Bd7 17. Nf5 Bxf5 18. Bxf5 Nc6 19. Bxd6 Qxd6 20. Ne4 Qf4 21. Bxg6 hxg6 22. Qxd5 Re5 23. Qd3 Rd8 24. Qf1 Rh5 25. g3 Qh6 26. Qg2 f5 27. g4 Rh4 28. gxf5 gxf5 29. Ng5 Qd6 30. Qe2 Qf6 31. Qe8+ Rxe8 32. Rxe8+ Qf8 33. Rae1 Rh5 34. Rxf8+ Kxf8 35. Ne6+ Kf7 36. Nc5 b6 37. Ne6 g5 38. Kg2 Kf6 39. Nc7 Ne7 40. Nb5 Nc6 41. Rd1 Ke7 42. Rd5 f4 43. b4 a5 44. a3 axb4 45. axb4 Nb8 46. Nd4 Nd7 47. c4 Nf6 48. Nf5+ Kf7 49. Rb5 Nd7 50. Nd6+ Ke6 51. Nc8 Rh8 52. Nxb6 Ne5 53. c5 Rd8 54. c6 Rd2+ 55. Kh3 Nxc6 56. Rxg5 Nxb4 57. Rg2 Rd8 58. Rb2 Nd3 59. Rd2 Rh8+ 60. Kg4 Rg8+ 61. Kh3 Rh8+ 62. Kg4 1/2-1/2

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "2004.09.04"]
[Round "6.7"]
[White "Leuba, Didier"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2162"]
[BlackElo "2243"]
[PlyCount "48"]
[EventDate "2004.02.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]
[WhiteTeam "Biel"]
[BlackTeam "Bern"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "SUI"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. Nbd2 Be7 5. e3 0-0 6. Bd3 b6 7. 0-0 c5 8. c3 Ba6 9. Bxa6 Nxa6 10. Qa4 Nb8 11. c4 Qe8 12. Qxe8 Rxe8 13. dxc5 bxc5 14. Rac1 Nbd7 15. Nb3 Rab8 16. Bxf6 Nxf6 17. Ne5 Rec8 18. Rc2 Bd6 19. Nd3 dxc4 20. Rxc4 Nd7 21. Nd2 Nb6 22. Rc2 c4 23. Nc1 Be5 24. Ne2 Na4 1/2-1/2

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "2004.06.13"]
[Round "5.8"]
[White "Xheladini, Mahmut"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2214"]
[BlackElo "2142"]
[PlyCount "78"]
[EventDate "2004.02.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]
[WhiteTeam "Roessli"]
[BlackTeam "Bern"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "SUI"]

1. e4 c5 2. Nf3 d6 3. Bc4 e6 4. 0-0 Nf6 5. Re1 Be7 6. Bb3 0-0 7. c3 b5 8. d4 Bb7 9. Nbd2 cxd4 10. Nxd4 Qb6 11. a4 a6 12. axb5 axb5 13. Rxa8 Bxa8 14. e5 dxe5 15. Rxe5 Bc5 16. N2f3 Bxf3 17. gxf3 Bxd4 18. cxd4 Nc6 19. Be3 Rd8 20. Qe2 Nd5 21. Bxd5 exd5 22. Rg5 f6 23. Rg4 Ne7 24. Bh6 Ng6 25. Bd2 Kf7 26. Bb4 Re8 27. Qd3 Qc6 28. Bc5 Re1+ 29. Kg2 Qe6 30. Qxb5 f5 31. Qb7+ Kf6 32. Rxg6+ Kxg6 33. Bf8 Qf7 34. Qb4 Qe6 35. Bd6 Qe2 36. Kg3 Rg1+ 37. Kf4 Rg4+ 38. fxg4 Qe4+ 39. Kg3 Qxg4# 0-1

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "2002.09.08"]
[Round "7.6"]
[White "Gruenenwald, Joerg"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2364"]
[BlackElo "2266"]
[PlyCount "85"]
[EventDate "2002.03.03"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bg5 Be7 7. Qa4+ c6 8. Bxf6 Bxf6 9. cxd5 exd5 10. g3 0-0 11. Bg2 Qe7 12. 0-0 Nd7 13. Rfe1 c5 14. Rad1 Rfd8 15. e3 g6 16. Qb3 Nf8 17. dxc5 bxc5 18. Rd2 Rab8 19. Qc2 Ne6 20. h4 d4 21. exd4 Bxf3 22. Bxf3 Nxd4 23. Rxe7 Nxf3+ 24. Kg2 Rxd2 25. Qe4 Rbxb2 26. Re8+ Kg7 27. Qxf3 Rxf2+ 28. Qxf2 Rxf2+ 29. Kxf2 Bxc3 30. Rc8 Bb2 31. a4 a5 32. Kf3 Bd4 33. Ra8 Bc3 34. g4 Be1 35. Ke2 Bb4 36. Kd3 h5 37. g5 Be1 38. Kc4 Bxh4 39. Rxa5 Bxg5 40. Rxc5 f5 41. a5 Bd8 42. a6 Bb6 43. Kb5 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "2002.06.16"]
[Round "5.6"]
[White "Vezzosi, Paolo"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "E23"]
[WhiteElo "2310"]
[BlackElo "2187"]
[PlyCount "92"]
[EventDate "2002.03.03"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mendrisio"]
[BlackTeam "Bern"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "SUI"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Be3 Qa5 8. Rc1 Nxc3 9. bxc3 Bxc5 10. Bxc5 Qxc5 11. e3 b6 12. Be2 Ba6 13. Nd2 f5 14. 0-0 0-0 15. Qa4 Qa5 16. Qd1 Qa3 17. Rc2 Qe7 18. Nb3 Rac8 19. f4 Rc7 20. Qd2 Rfc8 21. Rd1 Nd8 22. Nd4 Nf7 23. Nb5 Bxb5 24. cxb5 d5 25. Qd4 Nd6 26. Rb1 Ne4 27. Rbc1 Qc5 28. c4 Qxd4 29. exd4 Kf7 30. Bd3 dxc4 31. Rxc4 Rxc4 32. Rxc4 Rxc4 33. Bxc4 Ke7 34. a3 Kd6 35. Ba2 Nc3 36. Bc4 Nb1 37. a4 Nc3 38. Kf2 Nxa4 39. h3 Nc3 40. g4 Nd5 41. Kf3 h6 42. gxf5 exf5 43. h4 Nb4 44. Bb3 Nd5 45. Bc4 Nc3 46. Ke3 Nd5+ 1/2-1/2

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "2000.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Giertz, Niklaus"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2273"]
[BlackElo "2279"]
[PlyCount "22"]
[EventDate "2000.02.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Nxe4 5. Nxe4 d5 6. Bd3 dxe4 7. Bxe4 Bd6 8. 0-0 0-0 9. c3 Ne7 10. d4 f5 11. Bxb7 Bxb7 0-1

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1999.??.??"]
[Round "5.7"]
[White "Matthey, Philippe"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "B83"]
[WhiteElo "2189"]
[BlackElo "2267"]
[PlyCount "70"]
[EventDate "1999.01.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. f4 exf4 10. Bxf4 Be6 11. Bf3 Ne5 12. Nd4 Qb6 13. Kh1 Bc4 14. Nf5 Rfe8 15. Re1 Qxb2 16. Qd4 Ba6 17. Rab1 Qa3 18. Re3 Qa5 19. Nd5 Nxd5 20. exd5 Bf6 21. Qd1 Rad8 22. Be2 Qa4 23. Bg3 g6 24. Bxa6 Qxa6 25. Nd4 Qxa2 26. Rxb7 Qxd5 27. Rb5 Qc4 28. Ra5 a6 29. h3 Nd7 30. Rxe8+ Rxe8 31. Nf3 Nc5 32. Qxd6 Qf1+ 33. Ng1 Ne4 34. Qf4 Nxg3+ 35. Qxg3 Bd4 0-1

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1998.03.29"]
[Round "1.7"]
[White "Moor, Olivier"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E42"]
[WhiteElo "2245"]
[BlackElo "2275"]
[PlyCount "137"]
[EventDate "1998.03.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 cxd4 6. exd4 0-0 7. a3 Be7 8. d5 exd5 9. cxd5 Re8 10. Be3 d6 11. Ng3 Ng4 12. Bd4 Bf6+ 13. Be2 Nd7 14. 0-0 Bxd4 15. Qxd4 Ngf6 16. b4 Qb6 17. Rfd1 Qxd4 18. Rxd4 Nb6 19. Nb5 Rd8 20. Nc7 Rb8 21. a4 a6 22. a5 Na8 23. Rc1 Nxc7 24. Rxc7 Rd7 25. Rc3 Re7 26. f4 Bg4 27. Bf1 Rbe8 28. f5 g6 29. b5 axb5 30. Bxb5 Ra8 31. fxg6 hxg6 32. Ra3 Re5 33. Bc4 Bd7 34. h3 Re1+ 35. Kf2 Rb1 36. Rf4 Kg7 37. Rb3 Bf5 38. Nxf5+ gxf5 39. Rxf5 Ne4+ 40. Ke3 Re1+ 41. Kd4 f6 42. Rf4 Nd2 43. Rg3+ Kf7 44. a6 bxa6 45. Rfg4 Rae8 46. Rg7+ Kf8 47. Rg8+ Ke7 48. Rxe8+ Kxe8 49. Bxa6 Ra1 50. Bb5+ Kf7 51. Bd7 Ke7 52. Bc6 Rg1 53. h4 Rh1 54. Re3+ Kf7 55. Kc3 Nf1 56. Rf3 Kg7 57. Kd3 Nh2 58. Rh3 Kh6 59. Ke2 Kh5 60. Be8+ Kh6 61. Bd7 Kh5 62. Be8+ Kh6 63. h5 f5 64. Bg6 f4 65. Be4 Nf1 66. Rxh1 Ng3+ 67. Kf3 Nxh1 68. Kxf4 Nf2 69. g4 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1997.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Desancic, Miroslav"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2270"]
[BlackElo "2445"]
[PlyCount "93"]
[EventDate "1997.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. 0-0 Nf6 8. Nb3 Be7 9. Nbxd4 0-0 10. Nb5 Bd7 11. Ne5 Nc6 12. Nxd7 Nxd7 13. Bf4 e5 14. Be3 a6 15. Nd6 Nb6 16. Bxb6 Qxb6 17. Nf5 Bf6 18. Qg4 Kh8 19. Nd6 Qc7 20. Ne4 Be7 21. Ng5 Bxg5 22. Qxg5 Nd4 23. Bd3 f6 24. Qh4 g5 25. Qh5 Qg7 26. c3 Ne6 27. Bf5 Nf4 28. Qf3 h5 29. Rad1 g4 30. Qe4 Rad8 31. Qb4 b5 32. Qe4 Qg5 33. Kh1 Qg8 34. b3 Rxd1 35. Rxd1 Rd8 36. Rxd8 Qxd8 37. h3 gxh3 38. g3 Qd1+ 39. Kh2 Ne2 40. Kxh3 Qf1+ 41. Kh4 Qxf2 42. Qa8+ Kg7 43. Qb7+ Kf8 44. Qc8+ Kg7 45. Qd7+ Kf8 46. Qd6+ Kg8 47. Qe6+ 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1997.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Leuba, Didier"]
[Result "1-0"]
[ECO "C04"]
[WhiteElo "2270"]
[BlackElo "2290"]
[PlyCount "101"]
[EventDate "1997.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Bd3 Nc6 5. c3 dxe4 6. Nxe4 e5 7. Ne2 exd4 8. Nxd4 Nxd4 9. cxd4 Nf6 10. 0-0 0-0 11. Qc2 h6 12. Be3 c6 13. Rad1 Nd5 14. a3 Bg4 15. Rc1 Re8 16. Bd2 Qb6 17. Nc5 Bf6 18. h3 Be2 19. Bxe2 Rxe2 20. Qd3 Re7 21. Rc2 Rd8 22. b4 Nc7 23. Be3 Nb5 24. Rc4 Nd6 25. Rcc1 Qb5 26. Qb3 Nf5 27. a4 Qb6 28. a5 Qc7 29. a6 b6 30. Nb7 Rd5 31. Qc4 Nxe3 32. fxe3 Bg5 33. Qxc6 Bxe3+ 34. Kh1 Qxc6 35. Rxc6 Rxd4 36. Rc8+ Kh7 37. b5 Rb4 38. Nd6 Bc5 39. Nxf7 Rxb5 40. h4 g6 41. g4 Ra5 42. g5 hxg5 43. Nxg5+ Kg7 44. Rc6 Rxa6 45. Rff6 Ra1+ 46. Kg2 Kh6 47. Rxg6+ Kh5 48. Nf3 Ra2+ 49. Kh3 Be3 50. Rg8 Bh6 51. Rh8 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1997.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Sherwin, James T"]
[Result "1/2-1/2"]
[ECO "B85"]
[WhiteElo "2270"]
[BlackElo "2315"]
[PlyCount "47"]
[EventDate "1997.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 7. Nb3 e6 8. 0-0 Be7 9. Be3 Qc7 10. Be2 0-0 11. f4 a6 12. a4 b6 13. Qe1 Nb4 14. Qf2 Rb8 15. Bf3 e5 16. a5 bxa5 17. Nxa5 Bd7 18. Ba7 Rbc8 19. Be3 Rfe8 20. Kh1 Rb8 21. Ba7 Rbc8 22. Be3 Rb8 23. Ba7 Rbc8 24. Be3 1/2-1/2

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1997.??.??"]
[Round "?"]
[White "Goldstern, Filip Daniel"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E13"]
[WhiteElo "2360"]
[BlackElo "2270"]
[PlyCount "62"]
[EventDate "1997.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Bg5 Bxc3+ 6. bxc3 Bb7 7. Nd2 d6 8. f3 h6 9. Bh4 Nbd7 10. e3 Qe7 11. Be2 g5 12. Bf2 h5 13. h4 g4 14. e4 gxf3 15. gxf3 Nf8 16. Qa4+ Qd7 17. Qb3 c5 18. a4 Qc7 19. a5 N6d7 20. Rg1 Ng6 21. Rg5 Ke7 22. Bg3 Rab8 23. axb6 Qxb6 24. Qa3 a6 25. f4 e5 26. fxe5 dxe5 27. dxe5 Qe6 28. Bxh5 Qh3 29. Bxg6 fxg6 30. e6 Kxe6 31. Qa5 Rxh4 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1997.??.??"]
[Round "?"]
[White "Preissmann, Emmanuel"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2365"]
[BlackElo "2270"]
[PlyCount "31"]
[EventDate "1997.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. 0-0 Bg7 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. Re1 0-0 9. d4 cxd4 10. cxd4 d5 11. e5 Ne4 12. Nbd2 Nxd2 13. Bxd2 Nc6 14. Bh6 Rfc8 15. Bxg7 Kxg7 16. Rc1 1/2-1/2

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1997.??.??"]
[Round "?"]
[White "Walti, Rolf"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "C13"]
[WhiteElo "2205"]
[BlackElo "2270"]
[PlyCount "41"]
[EventDate "1997.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 e6 4. e4 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 Nd7 8. Qd2 f5 9. Nc3 Nf6 10. 0-0-0 c6 11. Ne5 Bd7 12. Be2 b5 13. Bf3 Rc8 14. Kb1 b4 15. Na4 0-0 16. Nc5 Be8 17. Qh6 Nd5 18. Bxd5 cxd5 19. Rd3 Bg5 20. Rg3 f6 21. Nxe6 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1996.??.??"]
[Round "5"]
[White "Erismann, Peter"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2245"]
[BlackElo "2260"]
[PlyCount "126"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 055 Extra"]
[Source "ChessBase"]
[SourceDate "1997.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.01.01"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 Nc7 6. Nf3 Nc6 7. Qe4 d5 8. exd6 Qxd6 9. Bf4 Qd5 10. Bd3 Qxe4+ 11. Bxe4 Ne6 12. Be3 g6 13. Na3 Bg7 14. 0-0-0 0-0 15. Nc4 Ned8 16. Rhe1 Be6 17. Bd5 Rc8 18. Kb1 b5 19. Na3 Bf5+ 20. Ka1 b4 21. cxb4 Nxb4 22. Bb3 Ndc6 23. Nd4 Nxd4 24. Bxd4 Bxd4 25. Rxd4 Nd3 26. Rf1 Nxf2 27. Nc4 Ng4 28. h3 Nf6 29. Ne5 Rc5 30. Re1 Be4 31. Nd7 Nxd7 32. Rdxe4 e6 33. Rd4 Rfc8 34. Kb1 Nb6 35. a3 Kg7 36. g4 Rb5 37. Ka2 Rb8 38. Re2 a5 39. Rf2 Rb7 40. a4 Re5 41. Rdf4 Rd7 42. Rc2 h5 43. Rc6 Rb7 44. Rd4 hxg4 45. hxg4 Re2 46. Rc2 Rxc2 47. Bxc2 Nd5 48. Be4 Nb4+ 49. Kb3 Rb8 50. Kc3 f5 51. gxf5 gxf5 52. Bg2 Kf6 53. Rc4 Rg8 54. Bf1 Rg1 55. Be2 Rg2 56. Bd1 Nd5+ 57. Kb3 Rg3+ 58. Ka2 Nb4+ 59. Kb1 Rg1 60. Kc1 Nd3+ 61. Kc2 Nxb2 62. Kxb2 Rxd1 63. Rc5 Rd5 0-1

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "4"]
[White "Gast, Jonathan"]
[Black "Bucher, Rolf"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2265"]
[PlyCount "70"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nf6 5. Be2 0-0 6. 0-0 Nc6 7. Be3 Bg4 8. a4 a6 9. Ra3 h6 10. d5 Nb8 11. Qc1 Kh7 12. Rb3 Qc8 13. h3 Bd7 14. Ne1 c5 15. f4 e6 16. Bf3 exd5 17. e5 dxe5 18. fxe5 Ne4 19. Nxd5 c4 20. Ra3 Ng3 21. Nf6+ Kh8 22. Rf2 Nc6 23. Bxh6 Nxe5 24. Qg5 Nf5 25. Bxg7+ Kxg7 26. Bg4 Be6 27. Bxf5 Bxf5 28. Nh5+ Kh7 29. Rg3 Qc5 30. Nf6+ Kg7 31. Qxf5 Rad8 32. Kh2 Rd1 33. Ne4 Qe7 34. Nf3 Nxf3+ 35. Qxf3 Rfd8 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "8"]
[White "Gast, Jonathan"]
[Black "Schaefer, Michael"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2265"]
[BlackElo "2190"]
[PlyCount "60"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 Be7 7. Bg2 0-0 8. 0-0 a6 9. a4 Qc7 10. a5 Nc6 11. Nxc6 bxc6 12. Be3 Nd7 13. Na4 c5 14. Qd2 Rb8 15. c3 Rb5 16. Rfd1 Rxa5 17. c4 Ne5 18. Qc2 Bd7 19. b3 Nc6 20. Bd2 Bf6 21. Bxa5 Qxa5 22. Ra2 Nd4 23. Qd3 Rb8 24. Rb1 g6 25. Nc3 Qb4 26. Kh1 Qb6 27. Ra3 Bc6 28. h4 Bb7 29. Kh2 Nc6 30. Ra2 Nb4 0-1

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "6"]
[White "Gast, Jonathan"]
[Black "Suter, Stephan"]
[Result "1/2-1/2"]
[ECO "E65"]
[WhiteElo "2265"]
[BlackElo "2120"]
[PlyCount "68"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. d4 Nbd7 7. 0-0 0-0 8. e3 a6 9. b3 Rb8 10. Qe2 b5 11. Bb2 Qb6 12. dxc5 Nxc5 13. Nd5 Nxd5 14. cxd5 Bxb2 15. Qxb2 Bd7 16. Qd4 Rfc8 17. Rac1 b4 18. Rfd1 a5 19. Qh4 f6 20. Bh3 Bxh3 21. Qxh3 Qb7 22. Rc4 Qd7 23. Qh6 e5 24. dxe6 Nxe6 25. Qh4 Kg7 26. Rd5 Rc5 27. Rcxc5 Nxc5 28. Qd4 Nb7 29. Nd2 Rc8 30. Ne4 Qe6 31. Nxd6 Rd8 32. Nf5+ Qxf5 33. Rxd8 Nxd8 34. Qxd8 Qb1+ 1/2-1/2

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1996.??.??"]
[Round "4"]
[White "Gast, Jonathan"]
[Black "Vulevic, Vjekoslav"]
[Result "1/2-1/2"]
[ECO "C09"]
[WhiteElo "2260"]
[BlackElo "2335"]
[PlyCount "110"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 055 Extra"]
[Source "ChessBase"]
[SourceDate "1997.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.01.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Be2 cxd4 7. 0-0 Bd6 8. Nb3 Nf6 9. Nbxd4 0-0 10. Bg5 h6 11. Bh4 Re8 12. Re1 Bg4 13. Nb5 Bb8 14. c3 a6 15. Nbd4 Qc7 16. Bg3 Qd7 17. Bxb8 Raxb8 18. h3 Bh5 19. Qb3 Bg6 20. Qb6 Rbc8 21. Bf1 Ne4 22. Rad1 Bh5 23. Rd3 Bg6 24. Rde3 Nxd4 25. Nxd4 Kh7 26. Bd3 Ng5 27. Bxg6+ fxg6 28. h4 Ne4 29. f3 Nf6 30. Re6 Rxe6 31. Qxe6 Qc7 32. Qe5 Qa5 33. Qg3 Qxa2 34. Qd6 Rd8 35. Qg3 Qa4 36. Qc7 Rd7 37. Qc8 Qc4 38. Qf8 Qc7 39. Ne6 Qg3 40. Re2 Qxh4 41. Qc8 Rf7 42. Nf8+ Rxf8 43. Qxf8 Qg5 44. Qb8 Qc1+ 45. Kf2 g5 46. Qe5 g4 47. Qf5+ Kg8 48. Qc8+ Kh7 49. Qf5+ Kg8 50. Re7 gxf3 51. gxf3 Qxb2+ 52. Kg3 Qc1 53. Rxb7 Qe1+ 54. Kg2 Qe2+ 55. Kg3 Qe1+ 1/2-1/2

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1996.??.??"]
[Round "2"]
[White "Habibi, Ali"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "2405"]
[BlackElo "2260"]
[PlyCount "107"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 055 Extra"]
[Source "ChessBase"]
[SourceDate "1997.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.01.01"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 Nf6 4. c4 g6 5. 0-0 Bg7 6. d4 cxd4 7. Nxd4 0-0 8. Nc3 Ng4 9. e3 Nge5 10. b3 d6 11. h3 a6 12. Bb2 Nxd4 13. exd4 Nc6 14. Ne2 Qb6 15. Qd2 a5 16. Bc3 e5 17. Rad1 a4 18. Qb2 axb3 19. axb3 Nb4 20. Nc1 e4 21. g4 f5 22. gxf5 Bxf5 23. Rfe1 Rae8 24. Bf1 h5 25. Qd2 Nc6 26. b4 Kh7 27. b5 Ne7 28. Ba5 Qa7 29. Bb4 Qb6 30. c5 Qd8 31. Ba5 Qd7 32. Qe3 Bh6 33. Qg3 Ra8 34. Bb4 Nd5 35. Bd2 e3 36. Bxe3 Nxe3 37. fxe3 dxc5 38. dxc5 Qe7 39. Nd3 Ra2 40. c6 bxc6 41. bxc6 h4 42. Qe5 Qg5+ 43. Kh1 Bxd3 44. Qxg5 Rxf1+ 45. Rxf1 Be4+ 46. Kg1 Bxg5 47. Rf7+ Kh6 48. c7 Bxe3+ 49. Kf1 Rc2 50. Rd8 Bg2+ 51. Ke1 Bxh3 52. Rf3 Rxc7 53. Rxh3 Bg5 54. Rh8+ 1/2-1/2

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "1"]
[White "Jorns, Benedikt"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "A36"]
[BlackElo "2265"]
[PlyCount "81"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. Nf3 e6 6. 0-0 Nge7 7. e3 0-0 8. d4 cxd4 9. Nxd4 Nxd4 10. exd4 Nf5 11. d5 a6 12. Qd3 Rb8 13. Re1 Qc7 14. Bf4 e5 15. d6 Qb6 16. Bxe5 Bxe5 17. Rxe5 Qxd6 18. Qxd6 Nxd6 19. b3 Re8 20. Rae1 Rxe5 21. Rxe5 Kf8 22. Nd5 Ne8 23. Nb6 d6 24. Re3 Bf5 25. h3 h5 26. Kh2 Nf6 27. Nd5 Nxd5 28. Bxd5 a5 29. Re1 b6 30. Kg2 Re8 31. Rxe8+ Kxe8 32. a3 Ke7 33. h4 Bc2 34. b4 axb4 35. axb4 Bb3 36. b5 Bd1 37. f3 Bc2 38. Kf2 Bf5 39. Ke3 Be6 40. Ke4 Kf6 41. Kf4 1/2-1/2

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "7"]
[White "Madjd Pour, Caveh"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "E14"]
[WhiteElo "2100"]
[BlackElo "2265"]
[PlyCount "66"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 c5 6. 0-0 Be7 7. b3 0-0 8. Bb2 d5 9. Nc3 Nc6 10. Qe2 Nb4 11. Bb1 cxd4 12. exd4 Rc8 13. Re1 dxc4 14. bxc4 Bxf3 15. gxf3 Qxd4 16. Nd5 Qc5 17. Nxe7+ Qxe7 18. Kh1 Rfd8 19. Rg1 Nc6 20. Be4 Nd4 21. Qe3 e5 22. Qg5 g6 23. Rg3 Rc7 24. Qh6 Nxe4 25. fxe4 Ne2 26. Rh3 f6 27. Ba3 Qe6 28. Rf3 Rxc4 29. h4 Rxe4 30. Kh2 Rf4 31. Rd1 Re8 32. Rd6 Qg4 33. Rxf4 Nxf4 0-1

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "9"]
[White "Maenner, Martin"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "E43"]
[WhiteElo "2110"]
[BlackElo "2265"]
[PlyCount "58"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. e3 0-0 6. Bd3 c5 7. Nge2 cxd4 8. exd4 dxc4 9. Bxc4 b6 10. 0-0 Bb7 11. Bg5 Be7 12. Qd3 Nc6 13. a3 Nd5 14. Be3 Ne5 15. dxe5 Nxe3 16. Rfc1 Bc5 17. Kh1 Qh4 18. Ne4 Rad8 19. Qb1 Bxe4 20. Qxe4 Qxe4 21. fxe4 Ng4 22. h3 Nxe5 23. b4 Be3 24. Rc2 Nxc4 25. Rxc4 Rd2 26. Ng1 Rfd8 27. Re1 Bf4 28. Rf1 g5 29. Rf3 Ra2 0-1

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1996.??.??"]
[Round "1"]
[White "Pedrini, Pier Paolo"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "E38"]
[BlackElo "2260"]
[PlyCount "66"]
[EventDate "1996.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 055 Extra"]
[Source "ChessBase"]
[SourceDate "1997.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.01.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc5 6. Nf3 Qb6 7. e3 a6 8. Bd3 Qc7 9. a3 b6 10. 0-0 Bb7 11. Ne4 Be7 12. Nxf6+ Bxf6 13. e4 d6 14. Bf4 Nd7 15. Rad1 e5 16. Be3 0-0 17. b4 Rfc8 18. Qb3 Nf8 19. Rc1 Ne6 20. g3 Rab8 21. Qd1 Bd8 22. Nd2 Qd7 23. f4 b5 24. f5 Bg5 25. Bxg5 Nxg5 26. Qg4 h6 27. Qh5 bxc4 28. Rxc4 Rxc4 29. Bxc4 d5 30. exd5 Bxd5 31. Be2 Qa7+ 32. Rf2 Qe3 33. Nf1 Qe4 0-1

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "5"]
[White "Schmidt Schaeffer, Sebastian"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2370"]
[BlackElo "2265"]
[PlyCount "39"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 Qc7 10. Bxf6 gxf6 11. Be2 h5 12. Kb1 Qb6 13. Nf3 0-0-0 14. Rhf1 Be8 15. Bc4 Bh6 16. a3 Qc7 17. Ba2 Ne7 18. Nd4 Bc6 19. Qe2 Be8 20. Qxh5 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1995.??.??"]
[Round "2"]
[White "Gast, Jonathan"]
[Black "Georges, Sascha"]
[Result "0-1"]
[ECO "B59"]
[WhiteElo "2250"]
[BlackElo "2340"]
[PlyCount "56"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 049 Extra"]
[Source "ChessBase"]
[SourceDate "1996.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.01.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Be3 a5 10. Nd2 Nd4 11. Nc4 b5 12. Bxd4 bxc4 13. Be3 Be6 14. Nd5 Bxd5 15. exd5 Qc7 16. b3 cxb3 17. axb3 Ne4 18. Bc4 f5 19. f3 f4 20. Bd4 Ng3 21. hxg3 exd4 22. Bd3 Bg5 23. Qd2 Qd8 24. g4 Bh4 25. g3 Bxg3 26. Kg2 h5 27. gxh5 Qg5 28. Qe2 Bf2+ 0-1

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1995.??.??"]
[Round "5"]
[White "Gast, Jonathan"]
[Black "Leib, Agripa"]
[Result "1-0"]
[ECO "C08"]
[WhiteElo "2250"]
[BlackElo "2135"]
[PlyCount "75"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 049 Extra"]
[Source "ChessBase"]
[SourceDate "1996.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.01.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bd6 8. Bg5 f6 9. Be3 Ne7 10. Nfd4 Nbc6 11. Qh5+ g6 12. Qh6 Kf7 13. Be2 Ne5 14. 0-0-0 Qc7 15. Kb1 Bd7 16. h3 Rac8 17. f4 Nc4 18. Bc1 Nf5 19. Nxf5 Bxf5 20. Bd3 Bxd3 21. cxd3 Nb6 22. Be3 Bf8 23. Qh4 Bg7 24. Rc1 Qd6 25. Bc5 Qd8 26. Rhe1 Bf8 27. Qf2 Na4 28. Bd4 Rxc1+ 29. Rxc1 Bd6 30. Qf3 Be7 31. f5 Re8 32. g4 Qd7 33. Qf4 g5 34. Qc7 Rd8 35. Qa5 Kg7 36. Rc7 Qe8 37. Rxb7 Kf8 38. Qxa6 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1995.??.??"]
[Round "4"]
[White "Gast, Jonathan"]
[Black "Vulevic, Vjekoslav"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2250"]
[BlackElo "2320"]
[PlyCount "73"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 049 Extra"]
[Source "ChessBase"]
[SourceDate "1996.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.01.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 Nxd4 10. Bxd4 Be6 11. Kb1 a6 12. h4 h5 13. g4 Rc8 14. gxh5 Nxh5 15. Nd5 Bxd5 16. exd5 Bxd4 17. Qxd4 Qc7 18. Qd2 Qc5 19. Bh3 f5 20. Rhg1 Rf6 21. Qh6 Qxc2+ 22. Ka1 Rc5 23. Rde1 Kf7 24. Rg2 Qd3 25. Qh7+ Ng7 26. h5 Rxd5 27. hxg6+ Ke8 28. Rgg1 Re6 29. Rc1 Rc5 30. Qxg7 Qe3 31. Rb1 Re4 32. Qf7+ Kd7 33. g7 Kc6 34. g8Q d5 35. Qfe8+ Kb6 36. Qd8+ Kb5 37. Qge8+ 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1995.??.??"]
[Round "3"]
[White "Georg, Michel"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "B85"]
[WhiteElo "2170"]
[BlackElo "2250"]
[PlyCount "80"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 049 Extra"]
[Source "ChessBase"]
[SourceDate "1996.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.01.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nb3 e6 8. 0-0 Be7 9. Be3 Qc7 10. Be2 a6 11. a4 b6 12. f4 Bb7 13. Bf3 0-0 14. Qd2 Rab8 15. Rad1 Rfd8 16. Qf2 Ba8 17. g4 Na5 18. g5 Nd7 19. Nd4 Bf8 20. Kh1 Nc4 21. Bc1 Re8 22. Bg2 g6 23. Rd3 Bg7 24. b3 Na5 25. Bb2 Nc6 26. Nxc6 Bxc6 27. Ba3 Nc5 28. Rh3 Bxc3 29. Bxc5 bxc5 30. Rxc3 Rb4 31. Qe2 Qb7 32. Rc4 d5 33. Rxc5 Qb6 34. Rc3 dxe4 35. Re3 Rd8 36. Rh3 Rbd4 37. Qf2 e3 38. Rxe3 Rd2 39. Re2 Qxf2 40. Rexf2 Rxf2 0-1

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1995.??.??"]
[Round "6"]
[White "Raeber, Markus"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "E38"]
[WhiteElo "2115"]
[BlackElo "2250"]
[PlyCount "128"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 049 Extra"]
[Source "ChessBase"]
[SourceDate "1996.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.01.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc5 6. Nf3 Qb6 7. e3 a6 8. a3 Be7 9. b4 d6 10. Bb2 Nbd7 11. Bd3 Qc7 12. 0-0 b6 13. Ne4 Bb7 14. Rac1 Rc8 15. Neg5 d5 16. cxd5 Qxc2 17. Rxc2 Rxc2 18. Bxc2 Bxd5 19. Bd3 h6 20. Nh3 g5 21. Nd4 b5 22. Rc1 0-0 23. Nc6 Bd6 24. f3 Bxc6 25. Rxc6 Be5 26. Bc1 Nb8 27. Rc2 Rd8 28. Nf2 Kf8 29. g3 Nd5 30. f4 gxf4 31. gxf4 Bg7 32. e4 Nb6 33. e5 Rc8 34. Rxc8+ Nxc8 35. Be3 Ke8 36. Ne4 Kd7 37. Nc5+ Kc7 38. Kf2 Nb6 39. Kf3 Nd5 40. Bd2 h5 41. Ke4 Bf8 42. Nb3 Nc6 43. Be2 f5+ 44. Kd3 h4 45. Bf3 Nb6 46. h3 Nc4 47. Bc1 Kb6 48. Bh5 Kc7 49. Nd2 Nxd2 50. Bxd2 Bh6 51. Bf3 Ne7 52. Bh5 Nd5 53. Bf7 Kd7 54. Kd4 Bxf4 55. Be1 Bg3 56. Bd2 Bf4 57. Be1 Be3+ 58. Kd3 Bg5 59. Kd4 Nf4 60. a4 bxa4 61. Kc3 Ke7 62. Bg8 Nxh3 63. Kb2 Nf4 64. Ka3 Nd5 0-1

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1995.??.??"]
[Round "9"]
[White "Remeta, Velimir"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "B59"]
[WhiteElo "2010"]
[BlackElo "2250"]
[PlyCount "89"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 049 Extra"]
[Source "ChessBase"]
[SourceDate "1996.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.01.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Be3 Be6 10. Bf3 a5 11. a3 a4 12. Nc1 Qa5 13. Nd5 Bxd5 14. exd5 Nb8 15. c4 Nbd7 16. Be2 Ne4 17. Bd3 Ndc5 18. Bc2 Qa6 19. Qg4 Nf6 20. Qh4 Rfc8 21. Bg5 h6 22. Bxf6 Bxf6 23. Qg4 e4 24. Qe2 Bxb2 25. Rb1 Bxc1 26. Rfxc1 Re8 27. Rb4 Qa5 28. Qg4 Qd8 29. Rcb1 Qf6 30. Qg3 e3 31. fxe3 Qc3 32. Qf2 Qxe3 33. Rb6 Rad8 34. h3 Re5 35. Rf1 Kf8 36. Bg6 Qxf2+ 37. Rxf2 Re1+ 38. Kh2 f6 39. Rf3 Rc1 40. Re3 Rxc4 41. Rxd6 Rb8 42. Rb6 Rd8 43. Rb1 Nd7 44. Rxb7 Rd4 45. Rxd7 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1995.??.??"]
[Round "7"]
[White "Voneschen, Jan"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2080"]
[BlackElo "2250"]
[PlyCount "94"]
[EventDate "1995.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 049 Extra"]
[Source "ChessBase"]
[SourceDate "1996.01.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.01.01"]
[SourceQuality "1"]

1. e4 c5 2. f4 e6 3. Nc3 d5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. exd5 exd5 7. Nf3 Nc6 8. 0-0 f6 9. Qe2+ Be7 10. d4 c4 11. b3 cxb3 12. axb3 Nh6 13. Ba3 0-0 14. Bxe7 Nxe7 15. Rfe1 Kf7 16. Qb5 Rfd8 17. Re2 Rac8 18. Qd3 Qf5 19. Qd2 Nc6 20. Rae1 Qd7 21. Na4 b6 22. Nb2 Nf5 23. Nd3 Re8 24. Nb4 Rxe2 25. Rxe2 Nce7 26. Nd3 Nc6 27. Nb4 Nce7 28. Nd3 Kf8 29. Nf2 Nd6 30. g3 Nef5 31. g4 Ne7 32. h3 Nc6 33. Qd3 Kg8 34. c4 dxc4 35. bxc4 Nb4 36. Qb3 Rxc4 37. Nd2 Qf7 38. Nxc4 Qxc4 39. Qf3 Nd5 40. Re1 h6 41. Rd1 a5 42. Ne4 Nxe4 43. Qxe4 Nc3 44. Qe8+ Kh7 45. Rd2 a4 46. g5 fxg5 47. fxg5 hxg5 1/2-1/2

[Event "SUI-ch op"]
[Site "Luzern"]
[Date "1994.07.17"]
[Round "4"]
[White "Morris, Colin"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2245"]
[BlackElo "2206"]
[PlyCount "43"]
[EventDate "1994.07.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5 7. g3 Be7 8. Bg2 0-0 9. 0-0 Nbd7 10. Bf4 c5 11. Rc1 Ne4 12. dxc5 Ndxc5 13. Nd4 Bf6 14. Ncb5 a6 15. Nc7 Rc8 16. b4 g5 17. bxc5 bxc5 18. Nce6 fxe6 19. Nxe6 Qe7 20. Nxf8 gxf4 21. Bxe4 dxe4 22. Nd7 1-0

[Event "NED corr"]
[Site "Netherlands"]
[Date "1991.??.??"]
[Round "?"]
[White "Jansen, Bob"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "67"]
[EventDate "1991.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Nf6 4. 0-0 Bf5 5. d3 Nbd7 6. Nh4 e6 7. Nxf5 exf5 8. Re1 Bc5 9. Bh3 Qb6 10. e3 g6 11. Nc3 Bd6 12. e4 0-0 13. exf5 Bc5 14. Qf3 Rfe8 15. Bd2 Qxb2 16. fxg6 hxg6 17. Rec1 Bd4 18. Rab1 Qa3 19. Rb3 Qa6 20. Kg2 Bc5 21. Bg5 Kg7 22. Bxd7 Nxd7 23. h4 Re5 24. Bf4 Rh5 25. Re1 b5 26. Bg5 Qc8 27. Ne2 f6 28. Nf4 fxg5 29. Nxh5+ gxh5 30. Qxh5 Qf8 31. Qxg5+ Kh8 32. Qh5+ Kg8 33. d4 Bxd4 34. Qg6+ 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1990.??.??"]
[Round "5"]
[White "Gast, Jonathan"]
[Black "Kovacevic, Slobodan"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2280"]
[BlackElo "2360"]
[PlyCount "55"]
[EventDate "1990.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. Qe2 d6 8. c4 Nbd7 9. Nc3 Be7 10. f4 0-0 11. Kh1 Re8 12. Nf3 g6 13. b3 b5 14. Bb2 b4 15. Na4 Bb7 16. e5 Nh5 17. Nd2 Rad8 18. Be4 Bc8 19. g4 Ng7 20. Bg2 Rf8 21. Rad1 Ne8 22. Qe4 Qa5 23. Qe3 dxe5 24. fxe5 Nc5 25. Nxc5 Bxc5 26. Qh6 Bd4 27. Ne4 Bxe5 28. Ng5 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1990.??.??"]
[Round "7"]
[White "Gast, Jonathan"]
[Black "Plesec, Damjan"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2280"]
[BlackElo "2330"]
[PlyCount "33"]
[EventDate "1990.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Nb8 5. Nxe4 Nf6 6. Nxf6+ exf6 7. Bf4 Bb4+ 8. c3 Bd6 9. Bb5+ Bd7 10. Qe2+ Kf8 11. Bxd6+ cxd6 12. Nf3 Qb6 13. Nd4 a6 14. Bd3 Qc5 15. 0-0 Qxd5 16. Rfe1 g6 17. Bc4 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1990.??.??"]
[Round "6"]
[White "Ilic, Zoran S"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2375"]
[BlackElo "2280"]
[PlyCount "61"]
[EventDate "1990.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 d5 8. cxd5 exd5 9. 0-0 0-0 10. Nc3 c5 11. dxc5 bxc5 12. Ne1 Bb7 13. Rc1 Nbd7 14. Nd3 Nb6 15. Bg5 Qd7 16. Bxf6 gxf6 17. Nf4 Rad8 18. Qc2 f5 19. Bh3 Bg5 20. Bxf5 Qd6 21. e3 Bxf4 22. exf4 h6 23. Nb5 Qf6 24. Nxa7 Ba6 25. Bd3 c4 26. bxc4 Nxc4 27. a4 Rb8 28. Qc3 d4 29. Qe1 Rfe8 30. Qd1 Nb2 31. Qg4+ 1-0

[Event "Biel MTO op"]
[Site "Biel"]
[Date "1990.??.??"]
[Round "5"]
[White "Kengis, Edvins"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2545"]
[BlackElo "2280"]
[PlyCount "45"]
[EventDate "1990.07.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "SUI"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. c4 Bb4+ 6. Nbd2 0-0 7. 0-0 d5 8. cxd5 exd5 9. a3 Bd6 10. Ne5 c5 11. Ndc4 Be7 12. dxc5 Bxc5 13. b4 Be7 14. Bb2 Na6 15. Ne3 Nc7 16. Rc1 a5 17. Nc6 Bxc6 18. Rxc6 axb4 19. axb4 Qd7 20. Qc2 Na6 21. Rxf6 gxf6 22. Nxd5 Rad8 23. Qf5 1-0

[Event "Zuerich op-A 14th"]
[Site "Zuerich"]
[Date "1990.??.??"]
[Round "?"]
[White "Klinger, Josef"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2475"]
[BlackElo "2280"]
[PlyCount "55"]
[EventDate "1990.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 Be7 4. Nbd2 b6 5. e4 Bb7 6. Bd3 d5 7. Qe2 dxe4 8. Nxe4 0-0 9. Bxf6 Bxf6 10. 0-0-0 Nc6 11. c3 Ne7 12. Nxf6+ gxf6 13. Qd2 Kg7 14. h4 Rg8 15. Rh3 Qf8 16. Qf4 Nd5 17. Qe4 Qd6 18. Rg3+ Kf8 19. Rxg8+ Kxg8 20. Qxh7+ Kf8 21. h5 Qf4+ 22. Rd2 Qg4 23. Bg6 fxg6 24. hxg6 Ke8 25. Qf7+ Kd8 26. g7 Ne7 27. Qxf6 Bxf3 28. gxf3 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1990.??.??"]
[Round "2"]
[White "Komljenovic, Davorin"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E38"]
[WhiteElo "2470"]
[BlackElo "2280"]
[PlyCount "67"]
[EventDate "1990.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc5 6. Nf3 Nc6 7. Bg5 Nd4 8. Nxd4 Bxd4 9. e3 Qa5 10. exd4 Qxg5 11. Qd2 Qxd2+ 12. Kxd2 b6 13. Bd3 Bb7 14. f3 h5 15. h4 0-0-0 16. b4 Rhg8 17. Nb5 d6 18. Nxa7+ Kb8 19. Nb5 g5 20. hxg5 Rxg5 21. Bf1 Ba6 22. a4 e5 23. Rh4 Bxb5 24. axb5 Re8 25. Ra6 Nd7 26. dxe5 dxe5 27. Re4 Rd8 28. Ke1 Kb7 29. Re3 Ra8 30. Rd3 Nb8 31. Rxa8 Kxa8 32. Rd6 Rg6 33. Rxg6 fxg6 34. Bd3 1-0

[Event "Biel MTO op"]
[Site "Biel"]
[Date "1990.??.??"]
[Round "1"]
[White "Kuzmin, Alexey"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2500"]
[BlackElo "2280"]
[PlyCount "45"]
[EventDate "1990.07.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "SUI"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6 8. Bc3 0-0 9. Nbd2 d5 10. Ne5 Nfd7 11. Nxd7 Nxd7 12. 0-0 Rc8 13. Re1 Bf6 14. e4 c5 15. exd5 exd5 16. Bxd5 cxd4 17. Bb4 Nc5 18. Ne4 Re8 19. Bxc5 bxc5 20. Qf3 Qb6 21. Re2 d3 22. Re3 Rxe4 23. Qxe4 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1990.??.??"]
[Round "8"]
[White "Watson, William N"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "B62"]
[WhiteElo "2470"]
[BlackElo "2280"]
[PlyCount "53"]
[EventDate "1990.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 Bd7 8. Bxc6 bxc6 9. Qf3 Qa5 10. h4 Rb8 11. Nb3 Qa6 12. e5 Nd5 13. exd6 Bxd6 14. Ne4 Bf8 15. Bf4 Nxf4 16. Qxf4 Rb5 17. 0-0 Qb6 18. c4 Qb8 19. Qd2 Re5 20. Rad1 Qc7 21. Ng5 Rf5 22. Nd4 Ra5 23. Rfe1 Be7 24. b4 Bxg5 25. hxg5 Ra4 26. Nb3 Bc8 27. Nc5 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1989.??.??"]
[Round "?"]
[White "Domont, Alexandre"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2310"]
[BlackElo "2305"]
[PlyCount "73"]
[EventDate "1989.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 b5 10. Bxf6 gxf6 11. Nxc6 Bxc6 12. Qe3 Qa5 13. a3 b4 14. axb4 Qxb4 15. Qd4 Qxd4 16. Rxd4 Bh6 17. g3 Kd7 18. Bh3 Kc7 19. Rhd1 Rhd8 20. Rc4 Kb6 21. Kd2 d5 22. exd5 Bxd5 23. Nxd5+ Rxd5+ 24. Ke1 Rad8 25. Rxd5 exd5 26. Rd4 Kc5 27. Ra4 Kb5 28. b3 a5 29. Bf5 Bf8 30. Bxh7 Bb4+ 31. Kf2 Kc5 32. Bd3 Bc3 33. Kf3 Rh8 34. h4 Re8 35. h5 Be1 36. Ra1 Kd4 37. h6 1-0

[Event "Biel MTO op"]
[Site "Biel"]
[Date "1989.??.??"]
[Round "8"]
[White "Fauland, Alexander"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2455"]
[BlackElo "2305"]
[PlyCount "29"]
[EventDate "1989.07.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb7 5. Bg5 Bb4 6. e3 Bxc3+ 7. bxc3 Qe7 8. Be2 Qa3 9. Bxf6 Qxc3+ 10. Nd2 gxf6 11. 0-0 Rg8 12. Bf3 d5 13. cxd5 exd5 14. Rc1 Qb4 15. Rxc7 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1989.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Damljanovic, Branko"]
[Result "0-1"]
[ECO "B56"]
[WhiteElo "2305"]
[BlackElo "2530"]
[PlyCount "45"]
[EventDate "1989.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 e5 7. Nf3 Be7 8. Bc4 0-0 9. f5 a6 10. Be3 b5 11. Bd5 Bd7 12. a3 Rc8 13. Qe2 Na5 14. Nd2 Rxc3 15. bxc3 Nxd5 16. exd5 Bxf5 17. Rc1 Qc7 18. 0-0 Bg6 19. c4 bxc4 20. Rb1 c3 21. Bb6 Qc8 22. Ne4 Nc4 23. Bf2 0-1

[Event "Biel MTO op"]
[Site "Biel"]
[Date "1989.??.??"]
[Round "1"]
[White "Gast, Jonathan"]
[Black "Dizdarevic, Emir"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2305"]
[BlackElo "2495"]
[PlyCount "40"]
[EventDate "1989.07.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. Nd2 d6 8. a4 b6 9. Qe2 Nbd7 10. Ra3 Nc5 11. Rc3 Qb7 12. b3 Be7 13. Bb2 e5 14. Nf5 Bxf5 15. exf5 0-0 16. Re1 e4 17. Bxe4 Ncxe4 18. Nxe4 Nxe4 19. Rh3 Bf6 20. Qh5 h6 0-1

[Event "Bern op"]
[Site "Bern"]
[Date "1989.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Simon, Ralf Axel"]
[Result "1-0"]
[ECO "B46"]
[WhiteElo "2305"]
[BlackElo "2320"]
[PlyCount "63"]
[EventDate "1989.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Nxc6 bxc6 7. Bd3 d6 8. 0-0 Nf6 9. Na4 Be7 10. c4 0-0 11. Be3 Nd7 12. Rc1 c5 13. f4 Qc7 14. Rc2 Nb8 15. Qh5 Bf6 16. e5 g6 17. Qf3 Bd7 18. exd6 Qxd6 19. Nxc5 Bc6 20. Be4 Bg7 21. Rd2 Qc7 22. Rfd1 Rc8 23. b3 Bf8 24. Na4 Re8 25. Nb6 Ra7 26. Bxc6 Qxc6 27. Qxc6 Nxc6 28. Nd7 Bb4 29. Bxa7 Bxd2 30. Nf6+ Kf8 31. Bc5+ Re7 32. Rxd2 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1989.??.??"]
[Round "?"]
[White "Haeberli, Juerg"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "A11"]
[BlackElo "2305"]
[PlyCount "91"]
[EventDate "1989.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. d4 Bg7 5. 0-0 0-0 6. b3 c5 7. c3 Nc6 8. Bb2 cxd4 9. cxd4 Bf5 10. Nh4 Be6 11. Na3 Qd7 12. Nc2 Bh3 13. a3 Rac8 14. Ne3 Rc7 15. Qd3 Bxg2 16. Kxg2 Ne4 17. Nf3 f5 18. Ne5 Nxe5 19. dxe5 e6 20. f4 Nc5 21. Qd1 Qb5 22. b4 Na4 23. Bd4 Rfc8 24. Qd2 Bf8 25. Kf3 Nc3 26. Rfc1 Qxe2+ 27. Qxe2 Nxe2 28. Rd1 Nxd4+ 29. Rxd4 Rc3 30. Ke2 g5 31. Rd3 gxf4 32. gxf4 Bh6 33. Rf1 Kf7 34. Kd2 R3c7 35. Rd4 Ke7 36. Rd3 a6 37. Rd4 Rc3 38. Rd3 Rxd3+ 39. Kxd3 Rg8 40. Kd4 Kd7 41. Kd3 Rg6 42. Kd4 Bf8 43. Kc3 Rh6 44. Rf2 Rh4 45. Kd4 Bh6 46. Kd3 0-1

[Event "Bern op"]
[Site "Bern"]
[Date "1989.??.??"]
[Round "?"]
[White "Maenner, Martin"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "E27"]
[BlackElo "2305"]
[PlyCount "58"]
[EventDate "1989.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 0-0 7. e4 d6 8. Bd3 Nc6 9. Ne2 e5 10. Be3 b6 11. d5 Na5 12. Ng3 Ba6 13. a4 Bxc4 14. Bxc4 Nxc4 15. Bc1 Ne8 16. 0-0 a6 17. Qe2 b5 18. Rb1 Nc7 19. f4 Qd7 20. Nf5 f6 21. Qg4 Kh8 22. fxe5 Nxe5 23. Qh4 Rab8 24. c4 bxc4 25. Rxb8 Rxb8 26. Nxg7 Qxg7 27. Bh6 Qg6 28. Rxf6 Rb1+ 29. Rf1 Nf3+ 0-1

[Event "Bern op"]
[Site "Bern"]
[Date "1989.??.??"]
[Round "?"]
[White "Timmer, Robert"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2270"]
[BlackElo "2305"]
[PlyCount "89"]
[EventDate "1989.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 c5 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 0-0 9. Rd1 d6 10. Ng5 Bxg2 11. Kxg2 Qc7 12. b3 Qc6+ 13. f3 h6 14. Nge4 Nxe4 15. Nxe4 f5 16. Nc3 Bf6 17. Qd3 d5 18. Ba3 dxc4 19. Qe3 Rd8 20. Rxd8+ Bxd8 21. bxc4 Bg5 22. Qd3 Nd7 23. Nb5 Ne5 24. Qd6 Rd8 25. Qxc6 Nxc6 26. Rb1 Bf6 27. Bb2 Rd2 28. Bxf6 gxf6 29. Kf2 Rxa2 30. Rd1 Ne5 31. Rd8+ Kf7 32. Rc8 a6 33. Rc7+ Ke8 34. Nd4 Nd3+ 35. Ke3 Nc5 36. Rc6 Ra3+ 37. Kf2 e5 38. Nxf5 Nd7 39. Nxh6 a5 40. Nf5 Rb3 41. h4 e4 42. Re6+ Kf8 43. h5 exf3 44. h6 Rb1 45. h7 1-0

[Event "SUI-chT"]
[Site "Switzerland"]
[Date "1988.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Giertz, Niklaus"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2310"]
[PlyCount "71"]
[EventDate "1988.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "SUI"]
[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 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. f4 Qc7 10. a4 Be6 11. a5 Nbd7 12. Kh1 Rfc8 13. f5 Bc4 14. Bxc4 Qxc4 15. Ra4 Qc6 16. Qd3 Bd8 17. Be3 b5 18. axb6 Bxb6 19. Na5 Qc7 20. Nc4 Bxe3 21. Qxe3 Nc5 22. Raa1 Rd8 23. b3 a5 24. Rfd1 a4 25. Nb5 Qc6 26. Nbxd6 axb3 27. cxb3 Ncxe4 28. Nxe4 Nxe4 29. Rxd8+ Rxd8 30. Nxe5 Qc2 31. Qd4 Rc8 32. Nf3 Nf2+ 33. Kg1 Nd3 34. Kh1 Qc1+ 35. Rxc1 Rxc1+ 36. Ng1 1-0

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Cebalo, Miso"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2480"]
[BlackElo "2325"]
[PlyCount "79"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Qc2 Nf6 8. Bg5 Nbd7 9. Rd1 Be7 10. e4 0-0 11. Bd3 h6 12. Bf4 c5 13. d5 exd5 14. exd5 Nh5 15. Be3 Bd6 16. 0-0 Ne5 17. Nxe5 Bxe5 18. Rfe1 Nf4 19. Be4 Qf6 20. g3 Nh3+ 21. Kg2 Bxc3 22. Qxc3 Qxc3 23. bxc3 Rfe8 24. Bxh6 Nxf2 25. Kxf2 gxh6 26. c4 Kf8 27. Kf3 Rad8 28. a4 Rd6 29. Bf5 Ba6 30. Rxe8+ Kxe8 31. Re1+ Kd8 32. Re4 Rf6 33. Kf4 Bc8 34. g4 Bxf5 35. gxf5 Kd7 36. Ke5 Ke7 37. Rg4 Rd6 38. Rg8 a6 39. Re8+ Kxe8 40. Kxd6 1-0

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Costa, Jean Luc"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "E13"]
[WhiteElo "2320"]
[BlackElo "2325"]
[PlyCount "62"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Bg5 Bb7 6. e3 h6 7. Bh4 g5 8. Bg3 Ne4 9. Qc2 Bxc3+ 10. bxc3 d6 11. Bd3 f5 12. d5 Qf6 13. Nd4 Nc5 14. h4 Nba6 15. Nxe6 Nxe6 16. dxe6 Ke7 17. Bxf5 Bxg2 18. hxg5 hxg5 19. Rxh8 Rxh8 20. 0-0-0 Bf3 21. Rd4 Nc5 22. e4 Rh1+ 23. Kb2 Re1 24. Ka3 Re2 25. Qb1 Bxe4 26. Bxe4 Rxe4 27. Qh1 Rxd4 28. Qh7+ Kxe6 29. cxd4 Qxd4 30. Qg6+ Kd7 31. Qf5+ Kc6 0-1

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Franzoni, Giancarlo"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "C70"]
[WhiteElo "2390"]
[BlackElo "2325"]
[PlyCount "59"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 5. 0-0 Bg7 6. c3 b5 7. Bb3 Na5 8. Bc2 Bb7 9. d4 d6 10. Nbd2 Ne7 11. b4 Nac6 12. d5 Na7 13. Nb3 0-0 14. a4 c6 15. Na5 Qc7 16. Nxb7 Qxb7 17. dxc6 Qxc6 18. Bg5 f6 19. Be3 bxa4 20. Bxa4 Qc7 21. Bb3+ Kh8 22. Rxa6 Nb5 23. Rxa8 Rxa8 24. c4 Na7 25. c5 dxc5 26. Bxc5 Nac6 27. Qd3 Rb8 28. Qc4 Nxb4 29. Rd1 Bf8 30. Bxe7 1-0

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Bhend, Edwin"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2325"]
[BlackElo "2380"]
[PlyCount "64"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 0-0 13. a4 bxa4 14. Rxa4 a5 15. Bc4 Kh8 16. 0-0 f5 17. exf5 Bxf5 18. Nce3 Bd7 19. Bd3 Ne7 20. Ra3 Bxe3 21. Nxe3 d5 22. Qh5 e4 23. Bc2 Be6 24. c4 Rb8 25. Qe5 Bg8 26. cxd5 Ng6 27. Qxe4 Rxb2 28. Qd4 Rb4 29. Qa7 Nf4 30. Qxa5 Qb8 31. Qa7 Ne2+ 32. Kh1 Qxh2+ 0-1

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Campora, Daniel Hugo"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "2325"]
[BlackElo "2550"]
[PlyCount "68"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nf6 7. Ne5 Nbd7 8. Nxg6 hxg6 9. Be2 Qc7 10. Qd3 0-0-0 11. Qb3 e6 12. Bg5 Bd6 13. 0-0-0 Bf4+ 14. Bxf4 Qxf4+ 15. Qe3 g5 16. Bf3 Rh4 17. Qxf4 Rxf4 18. Ne2 Rh4 19. h3 e5 20. g3 Rhh8 21. Bg2 Kc7 22. dxe5 Nxe5 23. Rxd8 Rxd8 24. Rd1 Re8 25. Nd4 g6 26. c3 Nc4 27. Kc2 a6 28. Bf1 Nd6 29. Rd2 Re1 30. Rd1 Re5 31. Rd2 c5 32. Re2 Nfe4 33. f3 cxd4 34. cxd4 Rf5 0-1

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Christoffel, Martin"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2325"]
[BlackElo "2225"]
[PlyCount "61"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Nf3 Bg4 7. 0-0 e6 8. Bg5 Qc7 9. Nbd2 Bd6 10. Qa4 Nd7 11. Rfe1 Rc8 12. Bh4 Bh5 13. Qb3 0-0 14. Qc2 g6 15. Rac1 e5 16. dxe5 Ndxe5 17. Nxe5 Nxe5 18. h3 f5 19. Qb3 Nc4 20. Nf1 f4 21. Re6 Rfe8 22. Rce1 Rxe6 23. Rxe6 Qd7 24. Re1 f3 25. Ng3 fxg2 26. Bf5 gxf5 27. Nxh5 Qf7 28. Qd1 Ne5 29. Nf6+ Kh8 30. Nxd5 Ng6 31. Qd4+ 1-0

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Flueckiger, Christian"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2325"]
[BlackElo "2265"]
[PlyCount "61"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. Nf3 0-0 6. 0-0 c6 7. a4 Nbd7 8. a5 e5 9. dxe5 dxe5 10. Qd6 Re8 11. Bc4 Qe7 12. Qxe7 Rxe7 13. Be3 Bf8 14. h3 h6 15. Ne1 Ne8 16. Nd3 Nc7 17. g3 b5 18. Ba2 Nf6 19. Bc5 Re8 20. Bxf8 Kxf8 21. f4 exf4 22. Rxf4 Ke7 23. Raf1 Bxh3 24. Rxf6 Bxf1 25. Rxf7+ Kd8 26. Rxf1 Re7 27. Rf6 c5 28. Nxc5 b4 29. Nd5 Nxd5 30. Bxd5 Rc8 31. Rf8+ 1-0

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "King, Daniel J"]
[Result "0-1"]
[ECO "B84"]
[WhiteElo "2325"]
[BlackElo "2475"]
[PlyCount "34"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Qc7 8. f4 Be7 9. Be3 0-0 10. Qe1 b5 11. Bf3 Bb7 12. e5 dxe5 13. fxe5 Nfd7 14. Qg3 Kh8 15. Kh1 Nc6 16. Bh5 Qxe5 17. Bxf7 Nxd4 0-1

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Szabo, Laszlo"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2325"]
[BlackElo "2450"]
[PlyCount "56"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. c4 Nc6 8. Nxc6 dxc6 9. Be3 e5 10. f3 Nd7 11. Nc3 Bc5 12. Bxc5 Nxc5 13. Rf2 Be6 14. Bf1 a5 15. Qd2 0-0 16. Qe3 b6 17. Rd2 f6 18. Rad1 Rad8 19. Kf2 Kf7 20. g3 Bc8 21. f4 Ne6 22. Rxd8 Rxd8 23. Rxd8 Qxd8 24. Na4 Nd4 25. c5 b5 26. Nb6 Be6 27. f5 Bxa2 28. Qa3 Bb1 0-1

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Geller, Efim P"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "B58"]
[WhiteElo "2500"]
[BlackElo "2325"]
[PlyCount "107"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nf3 h6 8. 0-0 Be7 9. Re1 0-0 10. h3 Re8 11. Bf1 Bf8 12. b3 a6 13. Bb2 b5 14. Qd2 Bb7 15. Rad1 Rc8 16. a4 bxa4 17. Nxa4 Qc7 18. c4 Nd8 19. Nc3 Qb6 20. Rb1 Ne6 21. Nd5 Bxd5 22. exd5 Nc5 23. b4 Ncd7 24. Ba3 Qb7 25. Red1 Nb6 26. Qa2 Qa8 27. Bc1 Nbd7 28. Be3 a5 29. bxa5 Ne4 30. Qc2 Nec5 31. Rb5 Rb8 32. Ra1 Qa6 33. Nd2 Qc8 34. Nb3 Na6 35. Rc1 Qc7 36. Qb1 g6 37. Bd3 Kh7 38. g4 Ra8 39. Kg2 Reb8 40. h4 Kg8 41. g5 hxg5 42. hxg5 Bg7 43. Be4 Qd8 44. Rc3 Nc7 45. Rxb8 Qxb8 46. Rc1 Na6 47. c5 dxc5 48. d6 Ra7 49. Nxc5 Qxb1 50. Bxb1 Naxc5 51. Rxc5 Ra6 52. Bd3 Rxd6 53. Rc8+ Bf8 54. Bc4 1-0

[Event "Bern"]
[Site "Bern"]
[Date "1987.??.??"]
[Round "?"]
[White "Unzicker, Wolfgang"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "B63"]
[WhiteElo "2470"]
[BlackElo "2325"]
[PlyCount "47"]
[EventDate "1987.02.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "SUI"]
[EventCategory "7"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Nxd4 8. Qxd4 Bd7 9. 0-0-0 Qa5 10. f4 Be7 11. Kb1 Bc6 12. Bd3 0-0-0 13. f5 h6 14. Bh4 exf5 15. exf5 d5 16. Be1 Bc5 17. Qh4 Qb6 18. Na4 Bxa4 19. Qxa4 Qc6 20. Qxc6+ bxc6 21. Bd2 Ng4 22. Rde1 f6 23. Re6 Kd7 24. h3 1/2-1/2

[Event "Zuerich op-A 07th"]
[Site "Zuerich"]
[Date "1983.??.??"]
[Round "7"]
[White "Gast, Jonathan"]
[Black "Lematschko, Tatjana"]
[Result "0-1"]
[ECO "C68"]
[PlyCount "44"]
[EventDate "1983.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Qf6 8. Nbd2 Bd6 9. Nc4 Bxf3 10. Qxf3 Qxf3 11. gxf3 f6 12. Be3 c5 13. Kh1 g5 14. Rg1 h4 15. Bxg5 fxg5 16. Rxg5 Ne7 17. f4 Nc6 18. fxe5 Be7 19. Rg6 Rf8 20. Kg2 Kf7 21. Rh6 Kg7 22. Re6 Bg5 0-1

[Event "Zuerich op-A 07th"]
[Site "Zuerich"]
[Date "1983.??.??"]
[Round "5"]
[White "Gast, Jonathan"]
[Black "Sindik, Ervin"]
[Result "0-1"]
[ECO "B87"]
[BlackElo "2315"]
[PlyCount "56"]
[EventDate "1983.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. 0-0 Be7 9. f4 Bb7 10. e5 dxe5 11. fxe5 Bc5 12. Be3 Nc6 13. exf6 Bxd4 14. Nd5 Bxe3+ 15. Nxe3 Qxd1 16. Raxd1 gxf6 17. Rxf6 Ke7 18. Rdf1 Ne5 19. Rh6 Rad8 20. Rh5 f6 21. Rh6 Ng6 22. Rf2 f5 23. h4 Be4 24. Kf1 f4 25. Ng4 Rd1+ 26. Ke2 Rhd8 27. Rxh7+ Kf8 28. Rh8+ Nxh8 0-1

[Event "Zuerich op-A 07th"]
[Site "Zuerich"]
[Date "1983.??.??"]
[Round "3"]
[White "Gast, Jonathan"]
[Black "Weiss, Roland"]
[Result "1-0"]
[ECO "B34"]
[PlyCount "57"]
[EventDate "1983.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nxc6 bxc6 8. e5 Ng8 9. f4 f6 10. f5 fxe5 11. fxg6 d5 12. Qh5 h6 13. 0-0-0 Qa5 14. Bb5 cxb5 15. Nxd5 Bd7 16. Qf3 0-0-0 17. Rd3 e4 18. Qxe4 Qxa2 19. Nc3 Qa1+ 20. Kd2 Qa5 21. Ra1 Qxa1 22. Qa8+ Kc7 23. Nd5+ Kd6 24. Qxd8 Bxb2 25. Nf4+ Ke5 26. Qxd7 Bc1+ 27. Ke2 Bxe3 28. Rxe3+ Kxf4 29. Rf3+ 1-0

[Event "Zuerich op-A 07th"]
[Site "Zuerich"]
[Date "1983.??.??"]
[Round "2"]
[White "Rukavina, Josip"]
[Black "Gast, Jonathan"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2465"]
[PlyCount "61"]
[EventDate "1983.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 c5 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 d6 9. Bg5 a6 10. Bxf6 Bxf6 11. Qd3 Ra7 12. Rfd1 Be7 13. Nd4 Bxg2 14. Kxg2 0-0 15. f4 Qc8 16. f5 Nd7 17. fxe6 fxe6 18. Nxe6 Ne5 19. Qd5 Rf6 20. Nf4+ Kh8 21. Rd4 Rh6 22. h4 g5 23. Nd3 gxh4 24. Nxe5 dxe5 25. Rd3 Bf6 26. Rh1 Rg7 27. Ne4 Qg4 28. Rf3 h3+ 29. Kh2 Rd7 30. Nxf6 Rxf6 31. Qxe5 1-0

[Event "Zuerich op-A 07th"]
[Site "Zuerich"]
[Date "1983.??.??"]
[Round "6"]
[White "Zorman, Vojko"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "E21"]
[PlyCount "144"]
[EventDate "1983.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5 d6 6. e3 Bxc3+ 7. bxc3 e5 8. Nd2 e4 9. Be2 Qe7 10. 0-0 Nbd7 11. Nb1 Ne5 12. f4 Ng6 13. Bd2 h5 14. Be1 Bg4 15. a4 Qd7 16. Ra2 h4 17. Nd2 Bxe2 18. Qxe2 0-0-0 19. Bf2 Rde8 20. Nb3 h3 21. g3 Qg4 22. Qxg4+ Nxg4 23. Rb1 Ne7 24. Rab2 Kc7 25. Nd2 b6 26. a5 Nc8 27. Ra1 g5 28. Nb1 gxf4 29. gxf4 Rhg8 30. Kh1 Nh6 31. Bg1 Rg7 32. Na3 Reg8 33. Nb5+ Kb7 34. a6+ Kb8 35. Bf2 Rg2 36. Rg1 Nf5 37. Rbb1 R8g6 38. Rbf1 Nce7 39. Na3 Ng8 40. Nc2 Nf6 41. Ne1 Rxg1+ 42. Bxg1 Ne8 43. Rf2 Nxe3 44. Re2 Nf5 45. Rxe4 Nc7 46. Nf3 f6 47. Bf2 Nxa6 48. Ng1 Rh6 49. Ne2 Nc7 50. Ng3 Nh4 51. f5 Nf3 52. Be3 Rh8 53. Bf4 Ne5 54. Bxe5 dxe5 55. Rg4 Ne8 56. Ne4 a5 57. Kg1 a4 58. Kf2 a3 59. Rg1 a2 60. Kf3 Rh7 61. Ra1 Ra7 62. Ke3 Kc7 63. Kd3 Ra4 64. Kc2 Rxc4 65. Nd2 Rf4 66. Rxa2 Kb7 67. Ra1 Nd6 68. Rg1 Rxf5 69. Rg7+ Kc8 70. Rh7 Rf2 71. Kd3 Rxh2 72. Rh6 c4+ 0-1

[Event "Zuerich op-A 06th"]
[Site "Zuerich"]
[Date "1982.??.??"]
[Round "7"]
[White "Gast, Jonathan"]
[Black "Boehm, Hans"]
[Result "0-1"]
[ECO "C19"]
[PlyCount "82"]
[EventDate "1982.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Nf3 Bd7 8. a4 Qa5 9. Bd2 Nbc6 10. Bd3 c4 11. Bf1 f6 12. g3 Ng6 13. Bh3 0-0-0 14. Qe2 h5 15. 0-0 Rde8 16. Rab1 h4 17. g4 Rhf8 18. Rb5 Qxa4 19. Rb2 b6 20. exf6 gxf6 21. g5 Qa3 22. Rbb1 Qd6 23. gxf6 Rxf6 24. Rbe1 Nf4 25. Bxf4 Qxf4 26. Nd2 e5 27. Bxd7+ Kxd7 28. Kh1 Re7 29. dxe5 Rxe5 30. Qd1 h3 31. Re3 Rxe3 32. fxe3 Qg5 33. Rg1 Qxe3 34. Rg3 Qe6 35. Nf3 a5 36. Ng5 Qf5 37. Nxh3 Qf1+ 38. Rg1 Qf3+ 39. Qxf3 Rxf3 40. Rg7+ Kd6 41. Ng5 Rf6 0-1

[Event "Zuerich op-A 06th"]
[Site "Zuerich"]
[Date "1982.??.??"]
[Round "5"]
[White "Gast, Jonathan"]
[Black "Ekstroem, Roland"]
[Result "0-1"]
[ECO "B32"]
[BlackElo "2390"]
[PlyCount "82"]
[EventDate "1982.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. N5c3 h6 7. Nd5 Nf6 8. Be3 Nxd5 9. exd5 Qa5+ 10. Nc3 Ne7 11. Qf3 d6 12. 0-0-0 Bd7 13. Ne4 Nf5 14. Kb1 Be7 15. Bd2 Qc7 16. c3 0-0 17. h4 b5 18. Bd3 b4 19. g4 Nxh4 20. Rxh4 Bxh4 21. Rh1 bxc3 22. Nxc3 Qd8 23. Ne4 f5 24. gxf5 Bxf5 25. Qh5 Bxe4 26. Bxe4 Bg5 27. Rg1 Rxf2 28. Rxg5 Qc7 29. Rg1 Rxd2 30. b3 Qf7 31. Bh7+ Kf8 32. Qh3 Rf2 33. Bg6 Qxd5 34. Bc2 Qd2 35. Re1 Re8 36. Qd7 Rf7 37. Qc6 Rf6 38. Qe4 Qd4 39. Qh7 Rf2 40. Qh8+ Kf7 41. Qh7 e4 0-1

[Event "Zuerich op-A 06th"]
[Site "Zuerich"]
[Date "1982.??.??"]
[Round "2"]
[White "Gast, Jonathan"]
[Black "Shaw, Terrey Ian"]
[Result "1-0"]
[ECO "B11"]
[BlackElo "2355"]
[PlyCount "161"]
[EventDate "1982.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bh5 5. exd5 cxd5 6. g4 Bg6 7. Bb5+ Nc6 8. Ne5 Rc8 9. d4 e6 10. h4 f6 11. Nxg6 hxg6 12. Bd3 Nge7 13. Ne2 Nb4 14. Nf4 Kf7 15. h5 Nxd3+ 16. Qxd3 gxh5 17. gxh5 Nf5 18. Bd2 Qc7 19. c3 Qc4 20. Qf3 Bd6 21. Ng6 Rhg8 22. Nh4 Nxh4 23. Rxh4 b5 24. b3 Qc6 25. Qg4 a5 26. Qg6+ Ke7 27. h6 Qe8 28. Qxe8+ Kxe8 29. h7 Rh8 30. a4 b4 31. cxb4 Bxb4 32. Bxb4 axb4 33. a5 g5 34. Rh1 Rc7 35. a6 Rhxh7 36. Kd2 Rxh1 37. Rxh1 Kd7 38. Rh8 Kd6 39. Rd8+ Kc6 40. Re8 Kd7 41. Rf8 Kd6 42. Rd8+ Kc6 43. Re8 Kd7 44. Rf8 Rc8 45. Rxf6 Ke7 46. Rh6 Rc6 47. Rh7+ Kf6 48. a7 Ra6 49. f3 Ra2+ 50. Ke3 Ra3 51. Kf2 e5 52. Rh6+ Kf5 53. Rd6 e4 54. Rxd5+ Kf4 55. fxe4 Ra2+ 56. Kf1 Rxa7 57. e5 Kf3 58. Ke1 g4 59. e6 g3 60. Rf5+ Ke3 61. Re5+ Kf3 62. e7 g2 63. Re3+ Kxe3 64. e8Q+ Kf3 65. Qe2+ Kg3 66. Qf2+ Kh3 67. Qf3+ Kh2 68. Qf4+ Kh3 69. Kf2 Ra2+ 70. Kf3 Rf2+ 71. Kxf2 g1Q+ 72. Ke2 Qg6 73. d5 Qa6+ 74. Ke3 Qb6+ 75. Ke4 Kg2 76. Qd2+ Kh1 77. d6 Qc6+ 78. Qd5 Qd7 79. Kf3 Qh3+ 80. Kf2+ Kh2 81. Qe5+ 1-0

[Event "Zuerich op-A 06th"]
[Site "Zuerich"]
[Date "1982.??.??"]
[Round "6"]
[White "Gobet, Fernand"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "B89"]
[PlyCount "116"]
[EventDate "1982.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Qe2 Qc7 9. Bb3 Na5 10. g4 b5 11. g5 Nd7 12. h4 Nxb3 13. cxb3 Bb7 14. Rc1 Rc8 15. 0-0 Qb8 16. a3 Be7 17. f4 0-0 18. Qg2 g6 19. Rc2 Nc5 20. Re2 Qa8 21. Bf2 Nd3 22. Qf3 Nxf2 23. Rfxf2 d5 24. e5 Qa7 25. Qd3 b4 26. axb4 Bxb4 27. h5 Bc5 28. Rd2 Bc6 29. Kg2 Bd7 30. Kf3 Rb8 31. Rh2 Bxd4 32. Qxd4 Qxd4 33. Rxd4 Rxb3 34. Kg4 Rfb8 35. Ne4 dxe4 36. Rxd7 gxh5+ 37. Kxh5 Rxb2 38. Rxb2 Rxb2 39. Kg4 e3 40. Kf3 e2 41. Kf2 a5 42. Ra7 Ra2 43. Ke1 Ra4 44. Kxe2 Rxf4 45. Rxa5 Rg4 46. Kf3 Rxg5 47. Kf4 Rg1 48. Ra7 Kg7 49. Ra8 h5 50. Rb8 Rg6 51. Rb7 h4 52. Rb3 Kh6 53. Rb7 Kg7 54. Rb3 Rh6 55. Rh3 Kg6 56. Kg4 Rh7 57. Kf4 Rh5 58. Ke4 Kg5 0-1

[Event "Zuerich op-A 06th"]
[Site "Zuerich"]
[Date "1982.??.??"]
[Round "3"]
[White "Lurje, Pawel"]
[Black "Gast, Jonathan"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "84"]
[EventDate "1982.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 Nge7 5. d4 cxd4 6. Nxd4 d5 7. Be3 dxe4 8. Ndb5 Nf5 9. Qxd8+ Kxd8 10. 0-0-0+ Bd7 11. Bg1 Kc8 12. g4 a6 13. gxf5 axb5 14. fxe6 Bxe6 15. Bxb5 f5 16. Bb6 Bb4 17. Nd5 Ba5 18. Bc5 Bxd5 19. Rxd5 g6 20. a4 Bc7 21. Be3 Rd8 22. Rhd1 Rxd5 23. Rxd5 Bd8 24. c3 Kc7 25. Bc5 Bh4 26. Bd6+ Kd7 27. Bc5+ Kc7 28. Bd6+ Kd7 29. Be5+ Ke7 30. Bc7 Bf2 31. Bd6+ Ke6 32. Rd1 Nd4 33. Be5 Nxb5 34. axb5 Ra1+ 35. Kd2 Be3+ 36. Ke2 Rxd1 37. Kxd1 g5 38. c4 gxf4 39. Bg7 f3 40. Ke1 Bf4 41. h3 e3 42. Bd4 Bg3+ 0-1

[Event "Zuerich op-A 06th"]
[Site "Zuerich"]
[Date "1982.??.??"]
[Round "4"]
[White "Sahovic, Dragutin"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2450"]
[PlyCount "110"]
[EventDate "1982.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. c3 e6 4. Nd2 Be7 5. e3 b6 6. Bd3 c6 7. f4 Ba6 8. Bc2 Nbd7 9. Qf3 h6 10. Bh4 Ne4 11. Bxe7 Nxd2 12. Bxd8 Nxf3+ 13. Nxf3 Kxd8 14. e4 dxe4 15. Bxe4 Rc8 16. 0-0-0 Bc4 17. Nd2 Bd5 18. Bc2 g6 19. Rhg1 c5 20. dxc5 Nxc5 21. c4 Ba8 22. g3 Ke7 23. b4 Nb7 24. Kb2 Rhd8 25. Bb3 Nd6 26. Rge1 Nf5 27. Nb1 Nd4 28. Nc3 Bf3 29. Nd5+ Rxd5 30. cxd5 Bxd1 31. Bxd1 Rd8 32. dxe6 Nxe6 33. Kc3 Rc8+ 34. Kb2 Kf6 35. Bg4 Rc6 36. Bf3 Rc4 37. a3 Ke7 38. Bd5 Rc7 39. Rd1 Kf6 40. Rd2 Rd7 41. Rd1 Ng7 42. Bb3 Rxd1 43. Bxd1 Ke7 44. Kc3 Kd6 45. Bb3 Ne6 46. Kd3 f6 47. Ke3 a5 48. bxa5 bxa5 49. Bc2 f5 50. Bb3 g5 51. Bxe6 Kxe6 52. Kd4 Kd6 53. Kc4 Kc6 54. h3 gxf4 55. gxf4 h5 1/2-1/2

[Event "Zuerich op-A 05th"]
[Site "Zuerich"]
[Date "1981.??.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Hazai, Laszlo"]
[Result "0-1"]
[ECO "C68"]
[BlackElo "2450"]
[PlyCount "88"]
[EventDate "1981.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bd6 6. d4 exd4 7. Qxd4 f6 8. Re1 Be6 9. b3 c5 10. Qc3 Ne7 11. e5 Nd5 12. Qb2 fxe5 13. Bg5 Qc8 14. Nbd2 0-0 15. Nxe5 Qe8 16. c4 Nf4 17. Bxf4 Rxf4 18. Ne4 Rf5 19. Ng3 Rf6 20. Re3 Qf8 21. Rae1 Re8 22. Qe2 Bc8 23. Ng4 Rfe6 24. Qd1 Qf4 25. Rxe6 Rxe6 26. Rxe6 Bxe6 27. Ne3 b5 28. Qe2 c6 29. a4 bxa4 30. bxa4 Be5 31. Qd3 Bd4 32. Ngf1 Bf7 33. Qb3 h6 34. Qd3 Qf6 35. Qe4 Bxc4 36. Nf5 Qe6 37. Qb1 Qe2 38. N1g3 Bxf2+ 39. Kh1 Qe1+ 40. Qxe1 Bxe1 41. Ne7+ Kf7 42. Nxc6 Ke6 43. Nd8+ Kd7 44. Nb7 Bb4 0-1

[Event "Zuerich op-A 05th"]
[Site "Zuerich"]
[Date "1981.??.??"]
[Round "?"]
[White "Illi, Hans Joerg"]
[Black "Gast, Jonathan"]
[Result "1/2-1/2"]
[ECO "A04"]
[PlyCount "105"]
[EventDate "1981.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. 0-0 Bg7 5. e4 d6 6. d3 e6 7. Nc3 Nge7 8. Be3 Nd4 9. Qd2 0-0 10. Bh6 Nec6 11. Bxg7 Nxf3+ 12. Bxf3 Kxg7 13. Rae1 e5 14. Bg2 Qb6 15. Nd1 Be6 16. Kh1 Rad8 17. f4 f6 18. f5 gxf5 19. exf5 Bg8 20. Re4 Kh8 21. Qh6 Bd5 22. Rg4 Bxg2+ 23. Kxg2 Rf7 24. Rg6 Rdf8 25. Qh4 Qb4 26. Rh6 Qd2+ 27. Kg1 Qxc2 28. Nf2 Ne7 29. g4 d5 30. Re1 Qd2 31. Kf1 Qxb2 32. Re3 Ng8 33. Rh5 Qc1+ 34. Ke2 h6 35. g5 fxg5 36. Qxg5 Qb2+ 37. Ke1 Qb6 38. Rxe5 Rg7 39. Qd2 Qf6 40. Re6 Re7 41. Qe2 Rfe8 42. Ng4 Rxe6 43. fxe6 Qc3+ 44. Kf1 Rf8+ 45. Kg2 Qg7 46. h3 Ne7 47. Rxh6+ Kg8 48. Rh5 Ng6 49. Kh2 Nf4 50. Qe5 Nxh5 51. Qxh5 Qc7+ 52. Kg2 Qf4 53. Qxd5 1/2-1/2

[Event "Imperia op 21st"]
[Site "Imperia"]
[Date "1979.09.??"]
[Round "?"]
[White "Gast, Jonathan"]
[Black "Cortlever, Nicolaas"]
[Result "1/2-1/2"]
[ECO "C69"]
[PlyCount "132"]
[EventDate "1979.09.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 f6 6. d4 exd4 7. Nxd4 c5 8. Nb3 Qxd1 9. Rxd1 Be6 10. Bf4 Rd8 11. Rxd8+ Kxd8 12. Nc3 Kc8 13. Rd1 Bxb3 14. axb3 Ne7 15. Nd5 Nxd5 16. Rxd5 Be7 17. Kf1 Rd8 18. Rxd8+ Kxd8 19. Ke2 Kd7 20. Kd3 c6 21. Kc4 Ke6 22. Bc7 b5+ 23. Kd3 g6 24. Bf4 f5 25. c4 Bf6 26. Bc1 Bd4 27. f3 Be5 28. f4 Bd6 29. h3 h5 30. e5 g5 31. fxg5 Bxe5 32. Ke3 Kf7 33. Kf3 h4 34. Ke3 Kg6 35. Kd3 Bd6 36. Bd2 Kh5 37. Bc1 Be5 38. Ke2 Bc7 39. Kd3 Bd6 40. Bd2 Kg6 41. Bc1 Be5 42. Ke2 f4 43. Kf3 Kf5 44. g6 Kxg6 45. Ke4 Bf6 46. Bxf4 Bxb2 47. Bd6 bxc4 48. bxc4 Bd4 49. g3 hxg3 50. Bxg3 a5 51. Kd3 a4 52. Kc2 Kf5 53. Be1 Ke4 54. h4 a3 55. Kb3 Kd3 56. h5 a2 57. Kxa2 Kxc4 58. Bd2 Kd3 59. Bg5 c4 60. h6 c3 61. Kb3 c2 62. h7 c5 63. Bc1 Bc3 64. Bh6 c4+ 65. Ka4 Bh8 66. Kb4 c3 1/2-1/2

[Event "Four Cities tt 10th"]
[Site "Velm"]
[Date "1979.04.13"]
[Round "1.4"]
[White "Gast, Jonathan"]
[Black "Steiner, Ulrich A"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "2310"]
[PlyCount "82"]
[EventDate "1979.04.13"]
[EventType "team"]
[EventRounds "3"]
[EventCountry "AUT"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 b5 7. Bd5 Nxd5 8. exd5 Bb7 9. a3 Nd7 10. Bg5 g6 11. 0-0 h6 12. Bh4 Bg7 13. Nc6 Bxc6 14. dxc6 Nb6 15. Re1 g5 16. Bg3 0-0 17. h4 Rc8 18. hxg5 hxg5 19. Ne4 f6 20. f4 gxf4 21. Bxf4 Rxc6 22. Qh5 d5 23. Ng3 e6 24. Re2 Qe8 25. Qh3 Qf7 26. Rae1 f5 27. Nh5 Bd4+ 28. Be3 Bxb2 29. Qg3+ Kh7 30. Nf4 Nc4 31. Bc5 Re8 32. Qh4+ Kg8 33. Bb4 a5 34. Bc5 Bf6 35. Qg3+ Qg7 36. Qxg7+ Bxg7 37. Rxe6 Rexe6 38. Nxe6 Rxc5 39. Nxc5 Bd4+ 40. Kf1 Bxc5 41. a4 bxa4 0-1

