[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.08"]
[Round "1.1"]
[White "Keymer, Vincent"]
[Black "Hracek, Zbynek"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2675"]
[BlackElo "2564"]
[ECO "A07"]
[Opening "Reti"]
[Variation "King's Indian attack (Barcza system)"]
[WhiteFideId "12940690"]
[BlackFideId "300071"]
[EventDate "2022.06.08"]

1. Nf3 d5 2. g3 Nd7 3. d4 Ngf6 4. Bg2 e6 5. a4 c5 6. O-O b6 7. c4 Bb7 8. cxd5
exd5 9. a5 Be7 10. a6 Bc6 11. Ne5 Nxe5 12. dxe5 Nd7 13. Nc3 Nxe5 14. Nxd5 Rc8
15. Bf4 Ng6 16. Ra3 Bxd5 17. Rd3 Nxf4 18. gxf4 O-O 19. Rxd5 Qe8 20. Bh3 Rc7 21.
Bd7 Qb8 22. Qa4 c4 23. e3 c3 24. bxc3 Rxc3 25. Rfd1 Rc5 26. Qe4 Rxd5 27. Qxd5
Rd8 28. Qb7 b5 29. Kg2 b4 30. Ba4 Qxb7+ 31. axb7 Rb8 32. Rd7 Kf8 33. e4 g6 34.
Kf3 Ke8 35. Ke2 b3 36. Kd3 a5 37. e5 Bb4 38. f3 h5 39. Rc7+ Kd8 40. Rd7+ Ke8 41.
h3 h4 42. f5 gxf5 43. f4 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.08"]
[Round "1.2"]
[White "Sasikiran, Krishnan"]
[Black "Warmerdam, Max"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2635"]
[BlackElo "2613"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, Poisoned pawn variation"]
[WhiteFideId "5004985"]
[BlackFideId "1048104"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2
Qxb2 9. Rb1 Qa3 10. Be2 Be7 11. e5 dxe5 12. fxe5 Nfd7 13. h4 Bb4 14. Rh3 Ba5 15.
Kf1 Nxe5 16. Ncb5 Bxd2 17. Rxa3 Bxg5 18. Nc7+ Kd8 19. Nxa8 Bxh4 20. Nb6 Bf6 21.
Rc3 Nec6 22. Nxc6+ Nxc6 23. Rc4 Kc7 24. Bf3 Rd8 25. Na8+ Kd6 26. Nb6 Kc7 27.
Na8+ Kd6 28. Nb6 Kc7 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.08"]
[Round "1.3"]
[White "Pechac, Jergus"]
[Black "Stocek, Jiri"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2598"]
[BlackElo "2541"]
[ECO "E59"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line"]
[WhiteFideId "14926970"]
[BlackFideId "304760"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O
Nc6 9. a3 Bxc3 10. bxc3 Qc7 11. Re1 Rd8 12. Ba2 e5 13. Ng5 Rd7 14. d5 e4 15. Qc2
Ne5 16. Nxe4 Nxd5 17. f4 Ng6 18. c4 Nde7 19. Bb2 b6 20. Bb1 Qc6 21. Qf2 f5 22.
Nc3 Bb7 23. e4 Rf8 24. Nd5 fxe4 25. Bxe4 Qd6 26. Be5 Qe6 27. Bf6 Qd6 28. Nxe7+
Nxe7 29. Bxh7+ Kh8 30. Be5 Qh6 31. Bc2 Nc6 32. Re3 Nxe5 33. Rxe5 Rd4 34. Qe2 g6
35. Re7 Qxf4 36. Bxg6 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.08"]
[Round "1.4"]
[White "Niemann, Hans Moke"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2678"]
[BlackElo "2661"]
[ECO "E49"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Botvinnik system"]
[WhiteFideId "2093596"]
[BlackFideId "14204118"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 dxc4 8.
Bxc4 c5 9. Ne2 b6 10. O-O Qc7 11. Bd3 Ba6 12. e4 Bxd3 13. Qxd3 Nbd7 14. Bg5 h6
15. Bh4 b5 16. f3 a6 17. g4 Rfc8 18. Qe3 cxd4 19. cxd4 Qb6 20. g5 hxg5 21. Bxg5
Rc2 22. Kh1 e5 23. Rg1 Rac8 24. Rad1 Ra2 25. Rd2 Rcc2 26. Rxc2 Rxc2 27. Qd3 Rc4
28. Be3 Qc7 29. Qd1 g6 30. Qd3 Rc2 31. Rd1 Ra2 32. Rd2 Rxd2 33. Qxd2 Ne8 34.
dxe5 Nxe5 35. Bf4 Nc4 36. Qd5 Qc8 37. Nd4 Nf6 38. Qg5 Qd8 39. Be5 Nxe5 40. Qxe5
Nh5 41. Kg2 a5 42. Kf2 Qh4+ 43. Ke3 Qe1+ 44. Ne2 Qb1 45. Qe8+ Kg7 46. Qe5+ Kg8
47. Qe8+ Kg7 48. Qe5+ Kh7 49. Qd5 Kg7 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.08"]
[Round "1.5"]
[White "Michalik, Peter"]
[Black "Krzyzanowski, Marcin"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2535"]
[ECO "D38"]
[Opening "QGD"]
[Variation "Ragozin variation"]
[WhiteFideId "14907526"]
[BlackFideId "1132199"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bh4 O-O 8. e3
Bf5 9. Be2 Nbd7 10. Qb3 Bxc3+ 11. Qxc3 c6 12. Nd2 Re8 13. O-O a5 14. a4 Nf8 15.
f3 Bh7 16. Rfe1 Ne6 17. Bf1 g5 18. Bf2 Nc7 19. b4 Ne6 20. bxa5 Qxa5 21. Qb2 Ra7
22. e4 Rea8 23. h4 Qd8 24. hxg5 hxg5 25. exd5 Nxd5 26. Nc4 Nef4 27. Ra3 Qf8 28.
a5 Nb4 29. d5 Nbxd5 30. Rb3 c5 31. Rxb7 Ne6 32. Ne5 Rxb7 33. Qxb7 Ndc7 34. a6
Qd6 35. a7 Nd8 36. Qb8 Bf5 37. Nc4 Qc6 38. Nb6 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.09"]
[Round "2.1"]
[White "Keymer, Vincent"]
[Black "Sasikiran, Krishnan"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2675"]
[BlackElo "2635"]
[ECO "A06"]
[Opening "Reti opening"]
[WhiteFideId "12940690"]
[BlackFideId "5004985"]
[EventDate "2022.06.08"]

1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 b6 5. Bb2 Bb7 6. g3 Nbd7 7. Bg2 Be7 8. cxd5
exd5 9. O-O O-O 10. Nc3 Re8 11. Rc1 a6 12. Re1 Bf8 13. Re2 Rc8 14. d3 c5 15. d4
c4 16. a4 Ne4 17. Nd2 Nxc3 18. Bxc3 b5 19. bxc4 bxc4 20. e4 dxe4 21. Nxe4 Ba8
22. h4 f5 23. Ng5 Bxg2 24. Kxg2 Nf6 25. Re5 h6 26. Ba5 Qd7 27. Nf3 Bd6 28. Rxe8+
Qxe8 29. Nd2 Qe6 30. Qf3 Ne4 31. Nf1 Qd5 32. Be1 f4 33. Nd2 Nf6 34. Rxc4 Re8 35.
Rc6 Qe6 36. Nc4 Qxe1 37. Nxd6 Rf8 38. Qxf4 Qe6 39. Qf5 Qe7 40. d5 Kh8 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.09"]
[Round "2.2"]
[White "Warmerdam, Max"]
[Black "Pechac, Jergus"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2613"]
[BlackElo "2598"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]
[WhiteFideId "1048104"]
[BlackFideId "14926970"]
[EventDate "2022.06.08"]

1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 c6 6. O-O O-O 7. Nc3 dxc4 8. e4 b5
9. Qe2 Bg4 10. e5 Nd5 11. a4 Bf5 12. axb5 Bd3 13. Qd1 e6 14. Re1 a5 15. Bd2 Nxc3
16. bxc3 cxb5 17. Re3 Nc6 18. Ne1 Rc8 19. Nxd3 cxd3 20. Qb1 b4 21. Rxd3 bxc3 22.
Bxc3 Nb4 23. Bxb4 axb4 24. Ra4 Rc4 25. Rxb4 Rxb4 26. Qxb4 Bxe5 27. Qd2 Bg7 28.
d5 exd5 29. Bxd5 Qe7 30. h4 h5 31. Qe3 Qxe3 32. Rxe3 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.09"]
[Round "2.3"]
[White "Abdusattorov, Nodirbek"]
[Black "Michalik, Peter"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2661"]
[BlackElo "2577"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "classical attack, Marshall variation"]
[WhiteFideId "14204118"]
[BlackFideId "14907526"]
[EventDate "2022.06.08"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4
c6 9. Re1 Bf5 10. Qb3 Qd7 11. c5 Bc7 12. Nc3 Nxc3 13. Qxc3 Na6 14. Bd2 Rae8 15.
b4 Bb8 16. a4 Nc7 17. b5 Bxd3 18. Qxd3 Rxe1+ 19. Rxe1 f6 20. Rb1 b6 21. Qc2 cxb5
22. axb5 Rc8 23. c6 Qd6 24. g3 Re8 25. Bf4 Qa3 26. Bxc7 Bxc7 27. Qf5 Qd6 28. Re1
Rd8 29. h4 Qf8 30. h5 Qf7 31. Nh4 Bd6 32. Ng6 Bb4 33. Ne7+ 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.09"]
[Round "2.4"]
[White "Stocek, Jiri"]
[Black "Niemann, Hans Moke"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2541"]
[BlackElo "2678"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "4.Nc3"]
[WhiteFideId "304760"]
[BlackFideId "2093596"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Qb3 c5 6. Bg5 h6 7. Bh4 Nc6 8. d5 Na5
9. Qc2 Nxc4 10. dxe6 dxe6 11. Rd1 Bd7 12. e3 Nxb2 13. Qxb2 Ne4 14. Qxb4 cxb4 15.
Nxe4 Qc7 16. Bg3 Qc2 17. Bd3 Qxa2 18. Nd6+ Ke7 19. O-O Rhd8 20. Be4 a5 21. Nxf7
Ba4 22. Nxd8 Rxd8 23. Ra1 Qc4 24. Bg6 Bc6 25. Ne5 Qd5 26. Nxc6+ 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.09"]
[Round "2.5"]
[White "Hracek, Zbynek"]
[Black "Krzyzanowski, Marcin"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2564"]
[BlackElo "2535"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]
[WhiteFideId "300071"]
[BlackFideId "1132199"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. d3 e5 6. Nc3 d6 7. Nd5 h6 8. c3 a6
9. Bc4 Nge7 10. b4 cxb4 11. cxb4 O-O 12. Bd2 Kh7 13. Rc1 Be6 14. a4 Bxd5 15.
exd5 Nb8 16. a5 Nd7 17. Re1 f5 18. Qb3 Ng8 19. b5 Nc5 20. Qb1 e4 21. dxe4 fxe4
22. Rxe4 Nxe4 23. Qxe4 Nf6 24. Qb1 Nd7 25. Bd3 axb5 26. Bxg6+ Kh8 27. Qxb5 Nc5
28. Bb1 Qe7 29. Qc4 Rae8 30. Nh4 Qe2 31. Ng6+ Kg8 32. Nxf8 Qxd2 33. Ne6 Nxe6 34.
dxe6 d5 35. Qc2 Qxc2 36. Bxc2 Rxe6 37. Bb3 Rd6 38. Rc5 Bf8 39. Rxd5 Kg7 40. Rb5
Rd7 41. Bd5 Kf6 42. g3 Rc7 43. Bxb7 Rc1+ 44. Kg2 Bc5 45. a6 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.10"]
[Round "3.1"]
[White "Pechac, Jergus"]
[Black "Keymer, Vincent"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2598"]
[BlackElo "2675"]
[ECO "E10"]
[Opening "Queen's pawn game"]
[WhiteFideId "14926970"]
[BlackFideId "12940690"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qc2
Nbd7 9. Bf4 a5 10. Rd1 h6 11. Nc3 dxc4 12. Nd2 Nb6 13. e4 a4 14. a3 Bd7 15. Re1
Qc8 16. Rad1 Rd8 17. h3 c5 18. d5 exd5 19. Nxd5 Nfxd5 20. exd5 Bf8 21. g4 h5 22.
Re5 hxg4 23. Be4 Bd6 24. Bh7+ Kf8 25. Ne4 Bxe5 26. Bxe5 Bf5 27. Qc3 f6 28. Bxf6
Bxh7 29. Bxg7+ Kg8 30. Bh6 Qc7 31. Nf6+ Kf7 32. Nd7 Nxd5 33. Qg7+ Ke6 34. Qxh7
Rxd7 35. Re1+ Kf6 36. Bg5+ Kxg5 37. h4+ Kf6 38. Qh6+ Kf7 39. Qh7+ Kf6 40. Qh6+ 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.10"]
[Round "3.2"]
[White "Michalik, Peter"]
[Black "Stocek, Jiri"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2541"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]
[WhiteFideId "14907526"]
[BlackFideId "304760"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7 8. Bg5
Nbd7 9. a4 h6 10. Be3 Ng4 11. Bc1 Ngf6 12. Nd2 Nc5 13. Bf3 Be6 14. O-O Rc8 15.
Re1 g5 16. g3 g4 17. Bg2 h5 18. Nf1 h4 19. Ne3 hxg3 20. hxg3 Rh5 21. a5 Bf8 22.
Ra3 Ncd7 23. b4 b5 24. axb6 Qxb6 25. Bd2 Qxb4 26. Rxa6 Qd4 27. Nb5 Qc5 28. c4
Nb8 29. Ra4 Qb6 30. Qa1 Nbd7 31. Ra6 Qb8 32. Nf5 Nxe4 33. Nfxd6+ Nxd6 34. Ra8
Qxa8 35. Nxd6+ Bxd6 36. Bxa8 Rxc4 37. Qa6 Ke7 38. Be3 Bc5 39. Bxc5+ Nxc5 40. Qa5
Kf6 41. Qa3 Ra4 42. Qxc5 Rxa8 43. Qc6 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.10"]
[Round "3.3"]
[White "Krzyzanowski, Marcin"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2535"]
[BlackElo "2661"]
[ECO "E67"]
[Opening "King's Indian"]
[Variation "fianchetto, classical variation"]
[WhiteFideId "1132199"]
[BlackFideId "14204118"]
[EventDate "2022.06.08"]

1. Nf3 Nf6 2. c4 d6 3. d4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Bf5 7. Nh4 Bc8 8. Nf3
Nbd7 9. Nc3 e5 10. Qc2 Re8 11. dxe5 dxe5 12. Rd1 c6 13. e4 Qe7 14. b3 h6 15. h3
Nh7 16. Na4 b6 17. Be3 Ndf8 18. c5 b5 19. Nb2 Ne6 20. a4 bxa4 21. Rxa4 Nhg5 22.
Nxg5 hxg5 23. b4 Nd4 24. Bxd4 exd4 25. Nc4 Rd8 26. Qd3 Be6 27. Ra6 Qb7 28. Na5
Qxb4 29. Nxc6 Qb3 30. Nxd8 Qxd3 31. Rxd3 Bc4 32. Rd6 Bxd3 33. e5 Rc8 34. e6 fxe6
35. Nxe6 Bf5 36. Nxg7 Kxg7 37. c6 a5 38. Rxd4 Rc7 39. Rd5 Rxc6 40. g4 Be6 41.
Rxa5 Rc1+ 42. Kh2 Rc2 43. Kg3 Rc3+ 44. f3 Kf6 45. Bf1 Bf7 46. Ra6+ Kg7 47. Rd6
Rc5 48. Rd7 Kf6 49. Bd3 Ra5 50. Be4 Rc5 51. Ra7 Rb5 52. Ra6+ Kg7 53. Kf2 Rb2+
54. Kg3 Rb5 55. Rd6 Ra5 56. Rb6 Rc5 57. Kf2 Ra5 58. Ke3 Rc5 59. Kd4 Ra5 60. Rb7
Kf6 61. Bc2 Rd5+ 62. Ke3 Re5+ 63. Kf2 Rc5 64. Be4 Ra5 65. Kg3 Rc5 66. h4 gxh4+
67. Kxh4 g5+ 68. Kg3 Ra5 69. Rb6+ Kg7 70. Kf2 Rc5 71. Ke3 Rc3+ 72. Kd4 Rc4+ 73.
Ke5 Rc5+ 74. Kd6 Ra5 75. Bc6 Kf6 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.10"]
[Round "3.4"]
[White "Sasikiran, Krishnan"]
[Black "Hracek, Zbynek"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2635"]
[BlackElo "2564"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]
[WhiteFideId "5004985"]
[BlackFideId "300071"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. d3 Ne7 6. O-O Ng6 7. Ng5 Be7 8.
Qh5 e5 9. f4 Bxg5 10. fxg5 d5 11. Nc3 O-O 12. Qf3 Be6 13. Qg3 Rb8 14. b3 Qa5 15.
Na4 c4 16. dxc4 dxc4 17. Be3 Rfd8 18. h4 Nf4 19. Bxf4 exf4 20. Qxf4 Qd2 21. Qxd2
Rxd2 22. Rf2 Rbd8 23. Raf1 Kf8 24. Nc5 Ke7 25. Kh2 a5 26. Kg3 Rxf2 27. Rxf2 Rd1
28. Nb7 a4 29. bxa4 Ra1 30. e5 Rxa2 31. Nc5 Ra1 32. Kf4 Bd5 33. Ke3 Kd8 34. e6
fxe6 35. Rf7 e5 36. Rxg7 Ra3+ 37. Ke2 Rg3 38. h5 Rxg2+ 39. Kf1 Rxc2 40. h6 c3
41. g6 Rc1+ 42. Kf2 Bc4 43. Nb7+ Kc8 44. Nd6+ Kb8 45. Nxc4 Rf1+ 46. Ke2 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.10"]
[Round "3.5"]
[White "Niemann, Hans Moke"]
[Black "Warmerdam, Max"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2678"]
[BlackElo "2613"]
[ECO "D32"]
[Opening "QGD"]
[Variation "Tarrasch, von Hennig-Schara gambit"]
[WhiteFideId "2093596"]
[BlackFideId "1048104"]
[EventDate "2022.06.08"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qa4+ Bd7 6. Qxd4 exd5 7. Qxd5 Nf6 8.
Qd1 Bc5 9. Nf3 O-O 10. a3 Nc6 11. Bg5 h6 12. Bxf6 Qxf6 13. Qxd7 Rfd8 14. Qg4 Ne5
15. Qg3 Qb6 16. Rb1 Rac8 17. e3 Bxa3 18. Bb5 Bxb2 19. O-O Nxf3+ 20. Qxf3 Rxc3
21. Rxb2 a6 22. Qxf7+ Kxf7 23. Bc4+ Rxc4 24. Rxb6 Rd7 25. Rfb1 Rcc7 26. g4 Ke8
27. Kg2 Kd8 28. h4 Kc8 29. R1b3 Rc4 30. f4 a5 31. R6b5 a4 32. Ra3 Rd6 33. Kf3
Kc7 34. Ra5 Ra6 35. Rxa6 bxa6 36. Rd3 Kb6 37. e4 Rc1 38. e5 Ra1 39. Re3 a3 40.
Ke4 a2 41. Re2 g6 42. e6 Kc7 43. Ke5 Kd8 44. f5 gxf5 45. gxf5 Ke7 46. f6+ Kf8
47. e7+ Kf7 48. Kd6 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.11"]
[Round "4.1"]
[White "Keymer, Vincent"]
[Black "Niemann, Hans Moke"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2675"]
[BlackElo "2678"]
[ECO "D38"]
[Opening "QGD"]
[Variation "Ragozin variation"]
[WhiteFideId "12940690"]
[BlackFideId "2093596"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Bd2 Re8 8. a3
Bf8 9. h3 h6 10. Rd1 Bd7 11. Qc2 e5 12. dxe5 Nxe5 13. Nxd5 Nxf3+ 14. gxf3 Nxd5
15. cxd5 c6 16. Qb3 cxd5 17. Qxd5 Qc8 18. Bb5 Rd8 19. Bc3 Bxb5 20. Qxb5 Rxd1+
21. Kxd1 Bxa3 22. Bxg7 Kxg7 23. Rg1+ Kf6 24. bxa3 Qc3 25. Rg4 Rd8+ 26. Ke2 Rd2+
27. Kf1 Qd3+ 28. Qxd3 Rxd3 29. Ra4 a6 30. Rb4 Rxa3 31. Rb6+ Kg7 32. Rxb7 a5 33.
f4 a4 34. Ra7 Ra1+ 35. Kg2 a3 36. Kf3 a2 37. f5 Kg8 38. Ra8+ Kg7 39. Ra7 Kg8 40.
f6 Rh1 41. Rxa2 Rxh3+ 42. Kg4 Rh2 43. Kg3 Rh5 44. e4 Kh7 45. Re2 Ra5 46. Kf4 Kg6
47. e5 Ra4+ 48. Re4 Ra2 49. f3 Ra1 50. Rd4 h5 51. Re4 Rh1 52. Re2 Rh4+ 53. Kg3
Ra4 54. Rh2 Rb4 55. Rh1 Ra4 56. Rh4 Ra5 57. Re4 Kf5 58. e6 Ra8 59. exf7 Rf8 60.
Rf4+ 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.11"]
[Round "4.2"]
[White "Hracek, Zbynek"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2564"]
[BlackElo "2661"]
[ECO "B41"]
[Opening "Sicilian"]
[Variation "Kan, Maroczy bind (Reti variation)"]
[WhiteFideId "300071"]
[BlackFideId "14204118"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be2 Bb4 8. Nc2
Bd6 9. Be3 O-O 10. Qd2 Be5 11. Nd4 Nc6 12. Rc1 b6 13. g3 Bb7 14. f3 Rad8 15. Kf2
Qb8 16. Rhd1 Ne7 17. b4 Ne8 18. c5 bxc5 19. bxc5 d6 20. Na4 d5 21. Rb1 dxe4 22.
c6 Bxd4 23. Rxb7 Qc8 24. Rxe7 exf3 25. Bxf3 Bxe3+ 26. Qxe3 Rxd1 27. Bxd1 Qxc6
28. Qf3 Qc4 29. Bb3 Qd4+ 30. Kg2 Nf6 31. Qc3 Qe4+ 32. Qf3 Qe5 33. Ra7 Qd4 34.
Ra8 Qd2+ 35. Kh3 Qh6+ 36. Kg2 Qd2+ 37. Kh3 Qh6+ 38. Kg2 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.11"]
[Round "4.3"]
[White "Sasikiran, Krishnan"]
[Black "Pechac, Jergus"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2635"]
[BlackElo "2598"]
[ECO "C60"]
[Opening "Ruy Lopez"]
[Variation "Cozio defence"]
[WhiteFideId "5004985"]
[BlackFideId "14926970"]
[EventDate "2022.06.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. Nc3 Ng6 5. d4 Nxd4 6. Nxd4 exd4 7. Qxd4 c6 8.
Be2 Qb6 9. Be3 Qxb2 10. Rb1 Qa3 11. f4 Qd6 12. O-O f6 13. Bh5 Qxd4 14. Bxd4 Kd8
15. e5 fxe5 16. fxe5 b6 17. Rf7 Ke8 18. Rf2 Bb7 19. Rd2 Be7 20. Re1 Rf8 21. Ne4
Rf7 22. Bc3 Rd8 23. Nd6+ Bxd6 24. Rxd6 Ba6 25. e6 Re7 26. exd7+ Rxd7 27. Rxc6
Bb7 28. Bxg6+ hxg6 29. Rxe7+ Kxe7 30. Rxg6 Kf8 31. Rg4 Bc8 32. Rg3 Rf7 33. Be5
Bf5 34. c3 g6 35. h3 Ke7 36. Re3 Ke6 37. c4 Kd7 38. g4 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.11"]
[Round "4.4"]
[White "Warmerdam, Max"]
[Black "Michalik, Peter"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2613"]
[BlackElo "2577"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]
[WhiteFideId "1048104"]
[BlackFideId "14907526"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. cxd5 exd5 6. Bf4 c6 7. e3 Bf5 8. Nh4
Bg4 9. Qc2 Nh5 10. h3 Be6 11. Nf3 Nxf4 12. exf4 g6 13. Bd3 Qd6 14. Ne2 Nd7 15.
O-O Nf6 16. Ne5 Nd7 17. Nf3 Nf6 18. f5 gxf5 19. Bxf5 Bxf5 20. Qxf5 Nd7 21. Ng3
O-O-O 22. Ne5 Rdf8 23. Nxf7 Qf6 24. Qxf6 Bxf6 25. Nxh8 Bxd4 26. Rae1 Bxb2 27.
Re7 Rxh8 28. Nf5 Ba3 29. Rg7 Bf8 30. Rf7 Ne5 31. Rf6 Bc5 32. Kh2 d4 33. Rc1 Nd3
34. Rxc5 Nxc5 35. Nxd4 Nd7 36. Rf7 h5 37. f4 a6 38. g3 c5 39. Nf5 Kc7 40. Kg2 c4
41. Ne3 b5 42. g4 hxg4 43. hxg4 Kd6 44. g5 c3 45. g6 Rg8 46. f5 Ne5 47. Rf6+ Kc5
48. Re6 Nc6 49. Nc2 a5 50. Kf3 Nd4+ 51. Nxd4 Kxd4 52. Ke2 b4 53. f6 Rxg6 54.
Rd6+ Ke4 55. f7 Rxd6 56. f8=Q Rd2+ 57. Ke1 Rb2 58. Qe7+ Kd3 59. Qd6+ Ke3 60.
Qe5+ Kd3 61. Qf5+ Ke3 62. Kd1 a4 63. Qe6+ Kd3 64. Qd7+ Kc4 65. Qc6+ Kd3 66. Qb5+
Kd4 67. Qxa4 Kc4 68. Qc6+ Kd4 69. Qb5 Rd2+ 70. Kc1 Rb2 71. Qb6+ Kd3 72. Qc5 Rc2+
73. Kb1 Rb2+ 74. Ka1 Kd2 75. Qf2+ Kd3 76. Qf1+ Kd4 77. Qf3 Kc4 78. Qe4+ Kc5 79.
Qd3 Rd2 80. Qe3+ Kb5 81. Kb1 Rd1+ 82. Kc2 Rd2+ 83. Kc1 Kc4 84. Qb6 Rb2 85. Qc6+
Kd4 86. Qb5 Ke4 87. Qc5 Kd3 88. Qd5+ Ke3 89. Qc4 Kf2 90. a3 bxa3 91. Qxc3 Re2
92. Qc5+ Kg2 93. Qxa3 Kf2 94. Qc5+ Kf3 95. Kd1 Rf2 96. Qf5+ Ke3 97. Qe5+ Kf3 98.
Ke1 Rg2 99. Qf5+ Ke3 100. Qh3+ 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.11"]
[Round "4.5"]
[White "Stocek, Jiri"]
[Black "Krzyzanowski, Marcin"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2541"]
[BlackElo "2535"]
[ECO "E10"]
[Opening "Blumenfeld counter-gambit, Spielmann variation"]
[WhiteFideId "304760"]
[BlackFideId "1132199"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5 exd5 6. cxd5 h6 7. Bxf6 Qxf6 8. Qc2
Na6 9. Nc3 Rb8 10. e4 c4 11. Be2 Bd6 12. O-O O-O 13. Rfe1 Re8 14. a4 Nb4 15. Qd2
Bf4 16. Qd1 a6 17. axb5 axb5 18. e5 Bxe5 19. Ne4 Bxh2+ 20. Nxh2 Rxe4 21. Bf3
Rxe1+ 22. Qxe1 Qd6 23. Qe8+ Qf8 24. Qe5 d6 25. Qg3 Qe7 26. Be4 f5 27. Bb1 Nxd5
28. Nf3 Qf6 29. Ra7 Rb7 30. Ra6 Rd7 31. Ra8 Rd8 32. Rb8 b4 33. Qh4 Qxh4 34. Nxh4
Rf8 35. Ng6 Re8 36. Bxf5 Bxf5 37. Rxe8+ Kf7 38. Rd8 Bxg6 39. Rxd6 b3 40. Rxd5 c3 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.13"]
[Round "5.1"]
[White "Michalik, Peter"]
[Black "Keymer, Vincent"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2675"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]
[WhiteFideId "14907526"]
[BlackFideId "12940690"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bd3 Ngf6 6. Re1 e6 7. Bf1 b6 8. c4
Bb7 9. Nc3 Ne5 10. d4 Nxf3+ 11. gxf3 g6 12. Bg5 Be7 13. Bh6 g5 14. dxc5 bxc5 15.
f4 Rg8 16. fxg5 Bf8 17. Bxf8 Rxg5+ 18. Bg2 Kxf8 19. Qd2 Nh5 20. Rad1 e5 21. Re3
Rg6 22. Rh3 Nf4 23. Rg3 Qh4 24. Rxg6 hxg6 25. Qxd6+ Kg8 26. f3 Qg5 27. Rd2 Ne6
28. Rf2 Rd8 29. Qb6 Nf4 30. Kh1 Qh4 31. Kg1 Qg5 32. Kh1 Ba8 33. Bf1 Ne6 34. Bh3
Nf4 35. Bf1 Ne6 36. Bh3 Nd4 37. Rg2 Qe7 38. Rg3 Kg7 39. Bf1 Rh8 40. h3 Qh4 41.
Kg2 Qf4 42. Qxc5 Qd2+ 43. Kh1 Rh5 44. Qc8 Qf2 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.13"]
[Round "5.2"]
[White "Niemann, Hans Moke"]
[Black "Sasikiran, Krishnan"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2678"]
[BlackElo "2635"]
[ECO "A20"]
[Opening "English opening"]
[WhiteFideId "2093596"]
[BlackFideId "5004985"]
[EventDate "2022.06.08"]

1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. O-O Nb6 7. b3 Be6 8. Bb2
f6 9. Nc3 Qd7 10. Rc1 O-O-O 11. Qc2 Kb8 12. Rfd1 Bb4 13. d4 Bxc3 14. Bxc3 e4 15.
Qxe4 Bf5 16. Qf4 Nd5 17. Qd2 Rhe8 18. Bb2 g5 19. Ne1 h5 20. Nd3 h4 21. Rc5 Qe6
22. Rxd5 Rxd5 23. Nc5 Rxc5 24. dxc5 Qxe2 25. Qxe2 Rxe2 26. Bxf6 h3 27. Bf1 Rxa2
28. Bxg5 a5 29. Bf4 Bg4 30. f3 Bxf3 31. Rd7 Bg2 32. Bc4 Bf3 33. Bxc7+ Kc8 34.
Be6 Rg2+ 35. Kf1 Re2 36. Rd8+ 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.13"]
[Round "5.3"]
[White "Abdusattorov, Nodirbek"]
[Black "Stocek, Jiri"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2661"]
[BlackElo "2541"]
[ECO "B54"]
[Opening "Sicilian"]
[WhiteFideId "14204118"]
[BlackFideId "304760"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Be3 e5 7. Nxc6 bxc6 8.
O-O Ng4 9. Bd2 Rb8 10. b3 d5 11. Nc3 Bc5 12. Qf3 O-O 13. exd5 f5 14. Bc4 Kh8 15.
h3 Nf6 16. Rad1 e4 17. Qg3 f4 18. Bxf4 Nh5 19. dxc6 Qe8 20. c7 Ra8 21. Rd8 Nxg3
22. Rxe8 Rxe8 23. Bxg3 Bb7 24. b4 Bd4 25. Nb5 Ba6 26. Rd1 Bb6 27. Nd6 Bxc4 28.
Nxc4 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.13"]
[Round "5.4"]
[White "Krzyzanowski, Marcin"]
[Black "Warmerdam, Max"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2535"]
[BlackElo "2613"]
[ECO "E68"]
[Opening "King's Indian"]
[Variation "fianchetto, classical variation, 8.e4"]
[WhiteFideId "1132199"]
[BlackFideId "1048104"]
[EventDate "2022.06.08"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. d4 Nbd7 7. Nc3 e5 8. e4
exd4 9. Nxd4 Nc5 10. h3 Re8 11. Re1 h6 12. Rb1 a5 13. b3 a4 14. Ndb5 axb3 15.
axb3 Bd7 16. Bb2 Qc8 17. Kh2 Bxb5 18. cxb5 Qe6 19. b4 Ncd7 20. f4 Qc4 21. Qf3
Nb6 22. e5 dxe5 23. fxe5 Nfd7 24. Ne4 Nxe5 25. Bxe5 Rxe5 26. Rbc1 Qxb4 27. Rxc7
Rf5 28. Qe2 Rb8 29. Rf1 Be5 30. Rxf5 gxf5 31. Rc5 Qd4 32. Qh5 Nd7 33. Rc1 fxe4
34. Rd1 Nf6 35. Qxh6 Qxd1 36. Qg5+ Kf8 37. Qxe5 Nd7 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.13"]
[Round "5.5"]
[White "Pechac, Jergus"]
[Black "Hracek, Zbynek"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2598"]
[BlackElo "2564"]
[ECO "D02"]
[Opening "Queen's bishop game"]
[WhiteFideId "14926970"]
[BlackFideId "300071"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 Bf5 7. Bb5 Rc8 8.
Ne5 Qb6 9. Qe2 Qxd4 10. g3 Qb6 11. O-O e6 12. g4 Bg6 13. h4 a6 14. Bxc6+ bxc6
15. h5 Be4 16. g5 Rg8 17. Kh2 Bf5 18. gxf6 gxf6 19. Nef3 Qb4 20. c4 Bd6 21. Bg3
Bxg3+ 22. fxg3 Qxb2 23. cxd5 cxd5 24. Qxa6 Rc2 25. Qa4+ Kf8 26. Qf4 Rg5 27. Rab1
Qc3 28. Rf2 Rxh5+ 29. Nh4 e5 30. Rb8+ Ke7 31. Rb7+ Kf8 32. Rb8+ Ke7 33. Qa4
Rxh4+ 34. Qxh4 Rxd2 35. Rb7+ Ke8 36. Rb8+ Ke7 37. Rb7+ Ke8 38. Rb8+ Ke7 39. Rb7+ 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.14"]
[Round "6.1"]
[White "Keymer, Vincent"]
[Black "Krzyzanowski, Marcin"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2675"]
[BlackElo "2535"]
[ECO "E60"]
[Opening "King's Indian"]
[Variation "3.g3"]
[WhiteFideId "12940690"]
[BlackFideId "1132199"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Qb3 Bg7 6. Nc3 dxc4 7. Qxc4 O-O 8. Nf3
a5 9. O-O a4 10. Qd3 Qa5 11. e4 Rd8 12. e5 Bf5 13. Qe2 Nd5 14. Bg5 f6 15. Bd2
Qa6 16. Rfe1 Qxe2 17. Rxe2 Nb6 18. Ne4 Nc4 19. Bb4 fxe5 20. Bxe7 Re8 21. Nf6+
Bxf6 22. Bxf6 e4 23. Ne5 Nxe5 24. Bxe5 Nd7 25. Bf4 Re6 26. h3 h5 27. Rd1 Nf6 28.
Rde1 Kf7 29. Be5 Nd7 30. Bxe4 Bxh3 31. Re3 Bf5 32. Bg2 Nb6 33. Rc1 Ra5 34. Bf1
Nd5 35. Ra3 Re8 36. Bc4 Be6 37. Rf3+ Bf5 38. Bd3 Ke6 39. Re1 Raa8 40. Bxf5+ gxf5
41. Bb8+ Kd7 42. Rxe8 Kxe8 43. Be5 a3 44. bxa3 b5 45. Rxf5 Rxa3 46. Rxh5 Rxa2
47. Rh8+ Kf7 48. Rh7+ Kg6 49. Rg7+ Kf5 50. f3 b4 51. g4+ Ke6 52. Rb7 c5 53. f4
cxd4 54. Bxd4 Nxf4 55. Rxb4 Rg2+ 56. Kf1 Rxg4 57. Be3 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.14"]
[Round "6.2"]
[White "Pechac, Jergus"]
[Black "Niemann, Hans Moke"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2598"]
[BlackElo "2678"]
[ECO "E56"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with 7...Nc6"]
[WhiteFideId "14926970"]
[BlackFideId "2093596"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. cxd5
exd5 9. dxc5 Bxc5 10. b3 Bg4 11. Bb2 a6 12. h3 Bh5 13. Be2 Rc8 14. Rc1 Ba7 15.
Nh4 Bg6 16. Nxg6 hxg6 17. Bf3 d4 18. exd4 Bxd4 19. Rc2 Be5 20. Nd5 Bxb2 21. Rxb2
Ne5 22. Rd2 Nxf3+ 23. Qxf3 Nxd5 24. Rxd5 Qe7 25. Rfd1 Rc7 26. Qd3 Rfc8 27. Rd7
Rxd7 28. Qxd7 Qxd7 29. Rxd7 Rc1+ 30. Kh2 Rc2 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.14"]
[Round "6.3"]
[White "Warmerdam, Max"]
[Black "Abdusattorov, Nodirbek"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2613"]
[BlackElo "2661"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]
[WhiteFideId "1048104"]
[BlackFideId "14204118"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. O-O Rb8 7. b3 cxb3 8. axb3
Be7 9. Bb2 O-O 10. Qc1 a6 11. Rd1 Bd7 12. Nc3 Nb4 13. e4 Rc8 14. Qf4 Be8 15. Bh3
c6 16. Rac1 b5 17. d5 cxd5 18. exd5 Nbxd5 19. Nxd5 Nxd5 20. Rxc8 Nxf4 21. Rcxd8
Nxh3+ 22. Kg2 Bxd8 23. Rxd8 Bc6 24. Rd6 Rc8 25. Kxh3 Bxf3 26. Rxa6 h5 27. Bd4 f6
28. b4 Rc4 29. Bc5 g5 30. Ra3 Kf7 31. Ra1 Kg6 32. Re1 Rc3 33. Ra1 f5 34. Re1 Bd5
35. Ra1 h4 36. Ra7 e5 37. Rd7 Bf3 38. Be3 f4 39. Bd2 Rc8 40. g4 Rc2 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.14"]
[Round "6.4"]
[White "Sasikiran, Krishnan"]
[Black "Michalik, Peter"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2635"]
[BlackElo "2577"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]
[WhiteFideId "5004985"]
[BlackFideId "14907526"]
[EventDate "2022.06.08"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. Qxc4
b5 9. Qc3 b4 10. Qd3 Rc8 11. dxc5 Bxc5 12. Bg5 O-O 13. Nbd2 Be7 14. Rfd1 h6 15.
Bxf6 Bxf6 16. Ne4 Rc7 17. Rd2 Be7 18. Rad1 Qb8 19. Qe3 Bc8 20. h4 Ba6 21. g4 b3
22. axb3 Bb4 23. Nc3 Ne7 24. Nd4 Rfc8 25. Nxe6 Bxc3 26. bxc3 fxe6 27. Qxe6+ Kh8
28. Qxa6 Rxc3 29. Qe6 Ng8 30. g5 Rf8 31. e3 Rxb3 32. Be4 Rb6 33. Rd6 Rxd6 34.
Qxd6 Qb3 35. Rd2 Qf7 36. Qg6 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.14"]
[Round "6.5"]
[White "Hracek, Zbynek"]
[Black "Stocek, Jiri"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2564"]
[BlackElo "2541"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7"]
[WhiteFideId "300071"]
[BlackFideId "304760"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8.
O-O-O a6 9. Bxf6 gxf6 10. f4 Nxd4 11. Qxd4 b5 12. e5 d5 13. Kb1 Bd7 14. f5 fxe5
15. Qxe5 Bf6 16. Qf4 Rc8 17. Bd3 Qc7 18. Qh6 Bxc3 19. bxc3 Qxc3 20. fxe6 Qb4+
21. Ka1 Qc3+ 22. Kb1 Qb4+ 23. Ka1 Bxe6 24. Rhe1 Kd7 25. Be4 Qc3+ 26. Kb1 Rc4 27.
Qe3 Rb4+ 28. Kc1 Qb2+ 29. Kd2 Qd4+ 30. Qxd4 Rxd4+ 31. Kc3 Rc4+ 32. Kb2 Kd6 33.
Re3 h5 34. Bf3 Rhc8 35. Rd2 h4 36. Red3 R8c5 37. Ra3 Rc6 38. Rad3 R6c5 39. Ra3
Rb4+ 40. Kc1 Rc6 41. Rad3 Rc5 42. Ra3 Ra4 43. Rxa4 bxa4 44. Kb2 Rc4 45. Be2 Rb4+
46. Ka3 a5 47. c3 Rf4 48. Bb5 Kc5 49. Bxa4 Rc4 50. Rd3 Rg4 51. Rd2 Rc4 52. Rd3
Re4 53. Rd2 Re3 54. Kb2 Bf5 55. Rf2 Be4 56. Rf6 d4 57. cxd4+ Kb4 58. Bd1 Re1 59.
Rb6+ Kc4 60. Bb3+ Kxd4 61. Rh6 Re2+ 62. Ka3 Rxg2 63. Bxf7 Rxh2 64. Ka4 h3 65.
Be6 Re2 66. Rxh3 Bc6+ 67. Kxa5 Rxe6 68. Kb4 Be4 69. Rh4 Rb6+ 70. Ka5 Rb8 71. Ka4
Kd3 72. Ka5 Ra8+ 73. Kb4 Rxa2 74. Kc5 Rc2+ 75. Kd6 Kd4 76. Rf4 Rc6+ 77. Kd7 Rh6
78. Rf1 Ke5 79. Re1 Rh7+ 80. Ke8 Kd5 81. Kf8 Bf5 82. Re7 Rh6 83. Kg7 Rg6+ 84.
Kf7 Ra6 85. Re1 Be4 86. Rd1+ Ke5 87. Re1 Ra7+ 88. Ke8 Rb7 89. Re2 Kd5 90. Kf8
Bf5 91. Re7 Rb6 92. Kg7 Be4 93. Kf7 Ra6 94. Kg7 Kd4 95. Kf7 Ke3 96. Rd7 Kf4 97.
Rd1 Ra7+ 98. Kf6 Ra6+ 99. Ke7 Ke5 100. Re1 Rh6 101. Re2 Rh1 102. Re3 Rh7+ 103.
Ke8 Kf5 104. Kd8 Ra7 105. Re1 Bc6 106. Re7 Ra6 107. Re1 Kf6 108. Kc7 Bd5 109.
Rd1 Ke5 110. Re1+ Kd4 111. Rc1 Bc4 112. Kd7 Kc5 113. Ke7 Re6+ 114. Kd7 Re2 115.
Kd8 Kd5 116. Kd7 Bb5+ 117. Kc7 Ba4 118. Rg1 Re7+ 119. Kb6 Re6+ 120. Ka5 Bc2 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.15"]
[Round "7.1"]
[White "Abdusattorov, Nodirbek"]
[Black "Keymer, Vincent"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2661"]
[BlackElo "2675"]
[ECO "C50"]
[Opening "Giuoco Pianissimo"]
[WhiteFideId "14204118"]
[BlackFideId "12940690"]
[EventDate "2022.06.08"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. Bg5 h6 7. Bh4 a6 8. c3 Ba7
9. a4 g5 10. Bg3 O-O 11. Na3 Bg4 12. Nc2 Kh8 13. Ne3 Bxe3 14. fxe3 Nh5 15. a5
Nxg3 16. hxg3 Qe7 17. Qb3 Rab8 18. Nh2 Be6 19. Qd1 Bxc4 20. dxc4 Qe6 21. Ng4 f5
22. exf5 Rxf5 23. Rxf5 Qxf5 24. Nxh6 Qg6 25. Ng4 Rf8 26. b4 Ne7 27. Qe2 Nf5 28.
Rf1 e4 29. Ne5 Qe8 30. Qf2 Kg7 31. Nd7 Rf7 32. Nf6 Rxf6 33. g4 Qh8 34. gxf5 Rh6
35. Qd2 Rh1+ 36. Kf2 Qh4+ 37. Ke2 Qg4+ 38. Ke1 Rxf1+ 39. Kxf1 Qxf5+ 40. Kg1 Qe5
41. Qd4 Kg6 42. Kf2 g4 43. Qxe5 dxe5 44. c5 c6 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.15"]
[Round "7.2"]
[White "Michalik, Peter"]
[Black "Pechac, Jergus"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2598"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]
[WhiteFideId "14907526"]
[BlackFideId "14926970"]
[EventDate "2022.06.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8.
Qxd8+ Kxd8 9. Rd1+ Ke8 10. Nc3 Ne7 11. Nd4 Nf5 12. Nde2 Be7 13. Ne4 h6 14. Nf4
Nh4 15. Re1 Bf5 16. Bd2 Rd8 17. Bc3 h5 18. Ng3 Bxc2 19. Ngxh5 Kf8 20. Rac1 Ba4
21. b3 Bb5 22. a4 Ba6 23. e6 f6 24. Rcd1 Rd6 25. Ng3 g5 26. Nfh5 Rh6 27. f4 g4
28. f5 Rxd1 29. Rxd1 Nxf5 30. Rd7 Nd6 31. Nf4 b6 32. Rxc7 Bb7 33. Bd2 f5 34. Bc3
Rh7 35. Be5 Ne4 36. Nxe4 fxe4 37. Ng6+ Ke8 38. Bd6 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.15"]
[Round "7.3"]
[White "Niemann, Hans Moke"]
[Black "Hracek, Zbynek"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2678"]
[BlackElo "2564"]
[ECO "B98"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Be7"]
[WhiteFideId "2093596"]
[BlackFideId "300071"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3
Nbd7 9. O-O-O h6 10. Bxf6 Bxf6 11. Bc4 O-O 12. g4 b5 13. e5 Bxe5 14. fxe5 d5 15.
Bb3 Nxe5 16. Qg3 Nc4 17. h4 Qd6 18. Qf3 Rb8 19. g5 h5 20. Kb1 g6 21. Rhe1 Bd7
22. Qf6 Rb6 23. Nf3 a5 24. Qd4 Qc7 25. Bxc4 bxc4 26. Ne5 Rfb8 27. Nxf7 Kxf7 28.
Qf6+ Ke8 29. Qh8+ Kf7 30. Qh7+ Kf8 31. Rf1+ Ke8 32. Qxg6+ Ke7 33. Nxd5+ exd5 34.
Rf7+ 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.15"]
[Round "7.4"]
[White "Stocek, Jiri"]
[Black "Warmerdam, Max"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2541"]
[BlackElo "2613"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Petrosian system, Stein variation"]
[WhiteFideId "304760"]
[BlackFideId "1048104"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. d5 a5 8. Bg5 h6
9. Be3 Ng4 10. Bd2 f5 11. h3 Nf6 12. exf5 gxf5 13. g4 Ne4 14. g5 Nxc3 15. Bxc3
hxg5 16. Qd2 g4 17. hxg4 fxg4 18. Ng5 Rf4 19. Ne6 Bxe6 20. dxe6 Nc6 21. O-O-O
Qe7 22. Rdg1 Raf8 23. Bxg4 Rxc4 24. Qd3 Rxc3+ 25. bxc3 Rxf2 26. Qh7+ Kf8 27. Bf5
Qf6 28. Rg6 Rxf5 29. Rxf6+ Rxf6 30. Rg1 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.15"]
[Round "7.5"]
[White "Krzyzanowski, Marcin"]
[Black "Sasikiran, Krishnan"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2535"]
[BlackElo "2635"]
[ECO "C15"]
[Opening "French"]
[Variation "Winawer (Nimzovich) variation"]
[WhiteFideId "1132199"]
[BlackFideId "5004985"]
[EventDate "2022.06.08"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Nf6 6. Ne2 O-O 7. O-O Re8 8.
Ng3 c6 9. h3 Nbd7 10. Qf3 Nf8 11. Nce2 Ng6 12. c3 Be7 13. Nf5 Bxf5 14. Qxf5 Nh4
15. Qf4 Ng6 16. Qf3 Nh4 17. Qf4 Ng6 18. Qf3 Nh4 19. Qf4 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.16"]
[Round "8.1"]
[White "Sasikiran, Krishnan"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2635"]
[BlackElo "2661"]
[ECO "E20"]
[Opening "Nimzo-Indian"]
[Variation "Kmoch variation"]
[WhiteFideId "5004985"]
[BlackFideId "14204118"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Be7 6. e4 dxe4 7. fxe4 c5 8. d5
exd5 9. exd5 O-O 10. Bd3 Bg4 11. Nge2 Nbd7 12. O-O Bd6 13. Qc2 Re8 14. Ng3 Qb8
15. Bd2 Bxg3 16. hxg3 Qxg3 17. Bf4 Qh4 18. Qf2 Qh5 19. Rfe1 b6 20. Nb5 Ne5 21.
Bf1 Bd7 22. Nd6 Re7 23. b4 Neg4 24. Qf3 Rxe1 25. Rxe1 cxb4 26. axb4 b5 27. Re7
bxc4 28. Bxc4 Rb8 29. b5 Rf8 30. Qh3 Qg6 31. Bd3 Nf2 32. Bxg6 Nxh3+ 33. gxh3
hxg6 34. Be5 Bxh3 35. Bxf6 gxf6 36. Rxa7 Rd8 37. Nxf7 Rxd5 38. b6 Bc8 39. Nh6+
Kf8 40. Ra8 Kg7 41. Rxc8 Rb5 42. Ng4 Rxb6 43. Rc7+ Kf8 44. Kf2 Re6 45. Kf3 Re7
46. Rc6 Kg7 47. Rxf6 Rf7 48. Rxf7+ Kxf7 49. Kf4 g5+ 50. Kxg5 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.16"]
[Round "8.2"]
[White "Hracek, Zbynek"]
[Black "Warmerdam, Max"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2564"]
[BlackElo "2613"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]
[WhiteFideId "300071"]
[BlackFideId "1048104"]
[EventDate "2022.06.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be7 8. Be3
h5 9. Qd2 Nbd7 10. Nd5 Nxd5 11. exd5 Nf6 12. Be2 Bf5 13. a4 O-O 14. O-O h4 15.
c4 a5 16. c5 dxc5 17. Rfd1 Bd6 18. Rac1 b6 19. Bg5 h3 20. Rc4 Re8 21. Bd3 e4 22.
Bxe4 Bxe4 23. fxe4 Qe7 24. gxh3 Nxe4 25. Bxe7 Nxd2 26. Nxd2 Rxe7 27. Re4 Rxe4
28. Nxe4 Be5 29. Kg2 Rd8 30. Rd2 f5 31. Nc3 Kf7 32. Nb5 Kf6 33. b3 Bd4 34. d6
Be5 35. h4 Ke6 36. Nc7+ Kd7 37. Nb5 Rh8 38. Rd5 Bf6 39. Rxf5 Rxh4 40. Rf2 Rb4
41. Rf3 c4 42. bxc4 Rxa4 43. Rf4 Ra2+ 44. Kf3 Rxh2 45. Rf5 Rc2 46. Rf4 a4 47.
Re4 Kc6 48. Rf4 Rd2 49. Re4 Rc2 50. Rf4 Rh2 51. Ke4 Rh4 52. Nd4+ Kc5 53. Rxh4
Bxh4 54. Kd3 Bf6 55. Nb5 Kc6 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.16"]
[Round "8.3"]
[White "Keymer, Vincent"]
[Black "Stocek, Jiri"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2675"]
[BlackElo "2541"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical, hedgehog system"]
[WhiteFideId "12940690"]
[BlackFideId "304760"]
[EventDate "2022.06.08"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4
d6 9. Rd1 a6 10. Bg5 Nbd7 11. Qd2 O-O 12. Bf4 Ne8 13. Rac1 Rc8 14. b3 h6 15. Ne1
Bxg2 16. Kxg2 Qc7 17. f3 Qb7 18. Ne4 Ndf6 19. Nxf6+ Nxf6 20. e4 Rfd8 21. a4 g5
22. Be3 d5 23. cxd5 Rxc1 24. Qxc1 exd5 25. e5 Nd7 26. Nd3 Nc5 27. Bxc5 bxc5 28.
Qc2 g4 29. Rf1 d4 30. e6 f5 31. Ne5 gxf3+ 32. Rxf3 Qe4 33. Nd3 Qxe6 34. Nf4 Qf7
35. Nd3 Qd5 36. Nf4 Qf7 37. Qe2 Bg5 38. Qxa6 Bxf4 39. Rxf4 Qd5+ 40. Kh3 Kg7 41.
Qd3 Rb8 42. Rxf5 Rxb3 43. Rxd5 Rxd3 44. Rxc5 Ra3 45. a5 d3 46. Rd5 d2 47. Rxd2
Rxa5 48. Kg4 Ra4+ 49. Kf5 Ra5+ 50. Ke4 Ra4+ 51. Rd4 Ra2 52. h3 Ra6 53. Ke5 Ra5+
54. Rd5 Ra3 55. Kf4 Ra6 56. h4 Kg6 57. Ke5 Ra4 58. Rd6+ Kh5 59. Kf5 Ra5+ 60. Kf4
Rf5+ 61. Ke4 Rf1 62. Rd8 Rf7 63. Ke3 Kg4 64. Rg8+ Kh5 65. Rh8 Kg4 66. Rg8+ 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.16"]
[Round "8.4"]
[White "Pechac, Jergus"]
[Black "Krzyzanowski, Marcin"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2598"]
[BlackElo "2535"]
[ECO "E47"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 O-O, 5.Bd3"]
[WhiteFideId "14926970"]
[BlackFideId "1132199"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 Re8 6. Nf3 Bxc3+ 7. bxc3 d6 8. e4
e5 9. O-O Bg4 10. h3 Bh5 11. Re1 Nbd7 12. g4 Bg6 13. Bg5 Nf8 14. d5 h6 15. Bh4
Bh7 16. Qc1 Ng6 17. Bg3 Nd7 18. h4 Nc5 19. Bc2 Qc8 20. Nh2 b6 21. f3 Qa6 22. h5
Nh8 23. g5 hxg5 24. Qxg5 f6 25. Qd2 Nf7 26. Ng4 Ng5 27. Kg2 Qxc4 28. Bh4 Rf8 29.
h6 gxh6 30. Nxh6+ Kh8 31. Bxg5 fxg5 32. Rh1 Rf4 33. Rh5 Raf8 34. Rah1 Qxa2 35.
Nf5 Rf7 36. Kg3 g4 37. Rxh7+ Rxh7 38. Rxh7+ Kxh7 39. Qh2+ Kg8 40. Ne7+ Kg7 41.
Nf5+ Rxf5 42. exf5 Qxd5 43. fxg4 e4 44. Kh4 e3 45. g5 Nd3 46. f6+ Kf7 47. Bb3
Qxb3 48. Kg3 Ne5 49. Qh7+ Ke6 50. Qg8+ Nf7 51. Qc8+ Ke5 52. Qxc7 Nxg5 53. Qg7
Ne4+ 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.16"]
[Round "8.5"]
[White "Niemann, Hans Moke"]
[Black "Michalik, Peter"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2678"]
[BlackElo "2577"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]
[WhiteFideId "2093596"]
[BlackFideId "14907526"]
[EventDate "2022.06.08"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bg5 c6 7. e3 h6 8. Bh4
Be7 9. Bd3 O-O 10. Qc2 Re8 11. O-O Ne4 12. Bxe4 Bxh4 13. Bh7+ Kh8 14. Bf5 Be7
15. Rab1 a5 16. Rfe1 Nf6 17. Ne5 Kg8 18. Bd3 Bd6 19. f4 Re7 20. h3 Nd7 21. Ne2
Nf8 22. Ng3 Qe8 23. Qf2 f6 24. Nf3 Bd7 25. Nh4 Qf7 26. Nhf5 Bxf5 27. Nxf5 Rd7
28. Qh4 Kh8 29. Rf1 Rad8 30. Rf3 Ng6 31. Qg4 Ne7 32. Rg3 Nxf5 33. Qxf5 Kg8 34.
Rf1 Kf8 35. b3 Bb8 36. Rff3 Ke7 37. Rg6 Rf8 38. Rfg3 Kd8 39. Qg4 Re8 40. Kf2
Ree7 41. Bf5 Rc7 42. Qd1 Qe8 43. Qd2 b6 44. b4 axb4 45. Qxb4 Rb7 46. a4 Rf7 47.
a5 Qe7 48. Qc3 Qc7 49. a6 Ra7 50. Qb4 c5 51. Qb5 cxd4 52. Be6 dxe3+ 53. Rxe3
Qxf4+ 54. Ke2 d4 55. Rgg3 dxe3 56. Rxe3 Be5 57. Bxf7 Rxf7 58. Qxb6+ Ke7 59. Qc7+
Ke6 60. Qc6+ Ke7 61. Rb3 Kd8 62. Qd5+ Ke8 63. Qa8+ Ke7 64. Qb7+ Ke6 65. Qc6+ Ke7
66. Rb7+ Kd8 67. Rxf7 1-0

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.17"]
[Round "9.1"]
[White "Krzyzanowski, Marcin"]
[Black "Niemann, Hans Moke"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2535"]
[BlackElo "2678"]
[ECO "B10"]
[Opening "Caro-Kann"]
[Variation "two knights variation"]
[WhiteFideId "1132199"]
[BlackFideId "2093596"]
[EventDate "2022.06.08"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Nd7 7. Bc4 Nf6 8.
Qe2 Bf5 9. d3 e6 10. a4 Bd6 11. O-O h6 12. Re1 O-O 13. h3 Re8 14. Ne5 Nd5 15.
Bb3 Bc7 16. Qh5 Qf6 17. Ng4 Qg6 18. Qxg6 Bxg6 19. a5 a6 20. Ne5 Bh7 21. Bd2 Rad8
22. g3 Kf8 23. Re2 f6 24. Nc4 e5 25. Rae1 Bg8 26. Kg2 g5 27. f3 h5 28. Kf2 Bf7
29. Rh1 Be6 30. Ree1 Bb8 31. h4 Ba7+ 32. Kg2 g4 33. fxg4 Bxg4 34. Rhf1 Kg7 35.
Ne3 Be6 36. Nxd5 cxd5 37. Bb4 Bg4 38. Ba4 Re6 39. Bb3 Kg6 40. Kh2 f5 41. Bd2 e4
42. Bg5 Rdd6 43. Bf4 Rd7 44. Ba4 Rd8 45. Bg5 Rc8 46. c3 b5 47. dxe4 dxe4 48. Bb3
Rd6 49. Bd1 Rd3 50. Bc2 Rd7 51. Bd1 Rc5 52. Bxg4 hxg4 53. Rd1 Rcd5 54. Rxd5 Rxd5
55. Re1 Bb8 56. Kg2 Rd3 57. Be3 Bc7 58. Kf2 Kh5 59. Rg1 Bxa5 60. Rf1 Bc7 61. Ke2
Rd5 62. Rg1 Be5 63. Bd4 Bxd4 64. Rd1 f4 65. gxf4 g3 66. cxd4 Kg4 67. Ke3 g2 68.
Kf2 Kh3 69. Kg1 Kg3 70. Rd2 e3 71. Rxg2+ Kf3 72. Rh2 Rxd4 73. Rh3+ Ke4 74. Kf1
Kd3 75. h5 Kd2 76. Rh2+ Kd1 77. h6 Rxf4+ 78. Kg2 e2 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.17"]
[Round "9.2"]
[White "Stocek, Jiri"]
[Black "Sasikiran, Krishnan"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2541"]
[BlackElo "2635"]
[ECO "D47"]
[Opening "QGD semi-Slav"]
[Variation "Meran variation"]
[WhiteFideId "304760"]
[BlackFideId "5004985"]
[EventDate "2022.06.08"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Be2
Bb7 9. O-O a6 10. e4 c5 11. d5 e5 12. Nd2 c4 13. a4 b4 14. Ncb1 Rc8 15. Nxc4
Nxe4 16. Nbd2 Nec5 17. Re1 Be7 18. Bg4 Bxd5 19. Nxe5 Nxe5 20. Rxe5 Be6 21. Bxe6
Nxe6 22. Re1 O-O 23. Nb3 Bf6 24. g3 h6 25. Rb1 Qe8 26. Qd3 Qc6 27. Bd2 Rfd8 28.
Qe4 Qxa4 29. Qf3 Bg5 30. Ra1 Qb5 31. Be3 Bxe3 32. Rxe3 Rc2 33. Rd1 Rxd1+ 34.
Qxd1 Qf5 35. Rf3 Qg6 36. h4 Rxb2 37. Qd5 Re2 38. Qa8+ Kh7 39. Qxa6 Qe4 40. Qd3
Qxd3 41. Rxd3 Rb2 42. h5 Ng5 43. f3 Ne6 44. Kf1 g6 45. hxg6+ Kxg6 46. Nd2 Kg7
47. Ke1 Nc5 48. Rd6 Rc2 49. Rb6 b3 50. Kd1 Rc3 51. g4 Kf8 52. Ke2 Ne6 53. Rb4
Kg7 54. Kd1 Nc5 55. Rb6 f6 56. Ke2 Kf7 57. f4 Rg3 58. f5 Rxg4 59. Rb5 Rg2+ 60.
Kd1 Rg1+ 61. Ke2 Rg2+ 62. Kd1 Rg1+ 63. Ke2 Rc1 64. Nxb3 Nxb3 65. Rb7+ Kf8 66.
Rxb3 Rc5 67. Rf3 h5 68. Kf2 Kf7 69. Kg3 Kg7 70. Kf4 Kh6 71. Ke4 Re5+ 72. Kf4 Ra5
73. Ke4 Ra4+ 74. Kd5 Kg5 75. Ke6 h4 76. Rf1 Re4+ 77. Kf7 h3 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.17"]
[Round "9.3"]
[White "Warmerdam, Max"]
[Black "Keymer, Vincent"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2613"]
[BlackElo "2675"]
[ECO "A07"]
[Opening "Reti"]
[Variation "King's Indian attack (Barcza system)"]
[WhiteFideId "1048104"]
[BlackFideId "12940690"]
[EventDate "2022.06.08"]

1. Nf3 d5 2. g3 Bg4 3. Bg2 c6 4. d4 Nd7 5. c4 e6 6. h3 Bf5 7. Nc3 Ngf6 8. Nh4
Be4 9. Nxe4 Nxe4 10. O-O Be7 11. Nf3 O-O 12. Qb3 Qb6 13. Qc2 a5 14. Be3 f5 15.
h4 Qa6 16. b3 Bd6 17. Ne1 b5 18. c5 Bc7 19. Nd3 Rae8 20. Qb2 Qc8 21. Rac1 Qd8
22. Ne5 Nxe5 23. dxe5 b4 24. Qd4 Qb8 25. Bf4 h6 26. h5 Ng5 27. Bxg5 Bxe5 28. Qe3
hxg5 29. Qxg5 Qd8 30. Qxd8 Rxd8 31. Bh3 Kf7 32. Kg2 g5 33. hxg6+ Kxg6 34. e3 a4
35. f4 Bc3 36. Kf3 Rh8 37. Rh1 Ra8 38. g4 axb3 39. axb3 Ra3 40. gxf5+ exf5 41.
Rb1 Rh5 42. Rbg1+ Kf7 43. Bf1 Rxh1 44. Rxh1 Rxb3 45. Bd3 Bg7 46. Bxf5 d4 47. Re1
Rc3 48. Be4 Bf8 49. Bxc6 Bxc5 50. Re2 Kf6 51. Be4 Ke6 52. Bh7 Kf7 53. Be4 Bb6
54. Bd5+ Kf6 55. Ke4 dxe3 56. Kf3 Bd4 57. Be4 Ra3 58. Bd5 b3 59. Be4 Ra1 60. Rh2
b2 61. Rh6+ Ke7 62. Rh7+ Kd6 63. Rb7 Rf1+ 64. Ke2 Rf2+ 65. Kd1 e2+ 66. Ke1 Bc3+ 0-1

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.17"]
[Round "9.4"]
[White "Michalik, Peter"]
[Black "Hracek, Zbynek"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2564"]
[ECO "C11"]
[Opening "French"]
[Variation "Steinitz, Boleslavsky variation"]
[WhiteFideId "14907526"]
[BlackFideId "300071"]
[EventDate "2022.06.08"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5
9. a3 Qa5 10. Rd1 b4 11. axb4 Qxb4 12. b3 cxd4 13. Nxd4 Nxd4 14. Bxd4 Bc5 15.
Be2 Bb7 16. Bxc5 Nxc5 17. Na4 Qxd2+ 18. Kxd2 Nxa4 19. bxa4 Bc6 20. a5 Bb5 21. c4
Bxc4 22. Bxc4 dxc4 23. Kc3 O-O 24. Rd6 Rfc8 25. Rb1 g6 26. Rb4 Rc5 27. Ra4 g5
28. g3 Kg7 29. Kd4 Rac8 30. Kc3 Ra8 31. Kd4 1/2-1/2

[Event "4th Prague Challengers"]
[Site "Prague CZE"]
[Date "2022.06.17"]
[Round "9.5"]
[White "Abdusattorov, Nodirbek"]
[Black "Pechac, Jergus"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2661"]
[BlackElo "2598"]
[ECO "C50"]
[Opening "Giuoco Pianissimo"]
[WhiteFideId "14204118"]
[BlackFideId "14926970"]
[EventDate "2022.06.08"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 a6 5. a4 d6 6. O-O Qf6 7. c3 Bg4 8. Nbd2
Nge7 9. b4 Ba7 10. h3 h5 11. Nb3 Nd8 12. d4 Ne6 13. Bxe6 Bxe6 14. Be3 Qg6 15.
dxe5 Bxe3 16. fxe3 Bxh3 17. Qc2 h4 18. exd6 cxd6 19. Nbd4 Rc8 20. Qf2 Rxc3 21.
e5 d5 22. Rac1 Rc8 23. e6 Bxe6 24. Ne5 Qg3 25. Rxc8+ Nxc8 26. Qxg3 hxg3 27. Rf3
O-O 28. Nd3 Nd6 29. Rxg3 Ne4 30. Rf3 Rc8 31. Rf1 Rc4 32. a5 g5 33. Rb1 Rc3 34.
Nc5 Bc8 35. Nxe4 dxe4 36. Kf2 Kg7 37. b5 Rc5 38. Rb4 f5 39. g4 f4 40. bxa6 bxa6
41. exf4 gxf4 42. Ne2 f3 43. Ng3 Rxa5 44. Rxe4 Ra2+ 45. Ke3 Ra3+ 46. Kf2 a5 47.
Rc4 Be6 48. Nf5+ Kf6 49. Rc5 a4 50. g5+ Kf7 51. Ra5 Bxf5 52. Rxf5+ Kg7 53. Rf6
Rb3 1/2-1/2

