[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.12"]
[Round "1.1"]
[White "Nguyen, Thai Dai Van"]
[Black "Abasov, Nijat"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2560"]
[BlackElo "2670"]
[ECO "A37"]
[Opening "English"]
[Variation "symmetrical variation"]
[WhiteFideId "358878"]
[BlackFideId "13402960"]
[EventDate "2020.02.12"]

1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. Nf3 d6 6. O-O e6 7. e3 Nge7 8. d4 O-O
9. Rb1 cxd4 10. exd4 d5 11. b3 b6 12. Ba3 Re8 13. Re1 a6 14. Ne5 Bb7 15. Rc1 Rc8
16. Nxc6 Bxc6 17. Bxe7 Rxe7 18. cxd5 Bxd5 19. Bxd5 Rec7 20. Bxe6 fxe6 21. Ne2
Rxc1 22. Nxc1 Bxd4 23. Nd3 Rc3 24. Nf4 e5 25. Ne2 Rd3 26. Qc2 Kg7 27. Nxd4 Qxd4
28. Qc7+ Kf6 29. Qxh7 Rd2 30. Qh8+ Kf7 31. Qh7+ Kf6 32. Re3 Qd5 33. Qh8+ Kf7 34.
Qh7+ Kf6 35. Qh4+ Kf5 36. Qh3+ Kf6 37. Qh4+ Kf5 38. Re1 Qd4 39. Qh3+ Kf6 40. Qg2
Rxa2 41. Qf3+ Kg7 42. h4 Ra1 43. Rxa1 Qxa1+ 44. Kg2 Qd4 45. Qb7+ Kf6 46. Qc6+ 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.12"]
[Round "1.2"]
[White "Krejci, Jan2"]
[Black "Cernousek, Lukas"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2559"]
[BlackElo "2442"]
[ECO "C01"]
[Opening "French"]
[Variation "exchange variation"]
[WhiteFideId "322156"]
[BlackFideId "311707"]
[EventDate "2020.02.12"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 Bd6 6. Qe2+ Qe7 7. Qxe7+ Kxe7
8. O-O Re8 9. Bg5 h6 10. Bh4 Nd7 11. Nbd2 Kf8 12. c4 g5 13. Bg3 Bxg3 14. fxg3
dxc4 15. Nxc4 Kg7 16. Rac1 Nd5 17. h4 f6 18. Nfd2 Nf8 19. Be4 Ne7 20. Rfe1 Rb8
21. d5 Rd8 22. Ne3 c6 23. Bf3 Nfg6 24. Nb3 gxh4 25. dxc6 Nxc6 26. Bxc6 bxc6 27.
gxh4 Nxh4 28. Rxc6 Rd7 29. Rc4 Ng6 30. Nf5+ Kh7 31. Rc6 Rf7 32. Nd6 Bb7 33. Rc5
Rd7 34. Ne8 Rf7 35. Rf5 Nh4 36. Rxf6 Rxf6 37. Nxf6+ Kg6 38. Nd7 Rg8 39. Re2 Bxg2
40. Rxg2+ Nxg2 41. Kxg2 Kf5+ 42. Kf3 Ke6 43. Ndc5+ Kd5 44. Nd3 Rf8+ 45. Kg4 Ke4
46. Nbc5+ 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.12"]
[Round "1.3"]
[White "Bartel, Mateusz"]
[Black "Esipenko, Andrey"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2639"]
[BlackElo "2654"]
[ECO "C77"]
[Opening "Ruy Lopez"]
[Variation "four knights (Tarrasch) variation"]
[WhiteFideId "1112635"]
[BlackFideId "24175439"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 Be7 6. Bxc6 dxc6 7. a3 O-O 8. d3
Bg4 9. h3 Bxf3 10. Qxf3 Nd7 11. Be3 Nc5 12. Qg3 f6 13. Qg4 Qc8 14. O-O-O Qxg4
15. hxg4 Ne6 16. g3 Rad8 17. f4 Bc5 18. Bxc5 Nxc5 19. Rdf1 Ne6 20. Nd1 g6 21.
Ne3 b5 22. Rh6 Nd4 23. Kd1 a5 24. Rfh1 Rd7 25. f5 g5 26. b4 a4 27. Kc1 Rff7 28.
Kb2 Rd6 29. Rd1 Rfd7 30. Rh2 Kh8 31. Kb1 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.12"]
[Round "1.4"]
[White "Stefansson, Hannes"]
[Black "Kriebel, Tadeas"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2529"]
[BlackElo "2524"]
[ECO "B47"]
[Opening "Sicilian"]
[Variation "Taimanov (Bastrikov) variation"]
[WhiteFideId "2300087"]
[BlackFideId "330027"]
[EventDate "2020.02.12"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Be7 8.
Be3 O-O 9. f4 d6 10. Kh1 Nxd4 11. Qxd4 e5 12. Qd3 b6 13. Rad1 Bb7 14. Bf3 Rad8
15. f5 Rfe8 16. Bf2 Qc8 17. Rfe1 Ba6 18. Qd2 d5 19. Nxd5 Nxd5 20. exd5 Qxf5 21.
Re4 Bd6 22. Bh4 Rc8 23. Rde1 Qd7 24. Bh5 Rf8 25. Bf6 Qf5 26. Bxe5 Rcd8 27. Bf3
Bxe5 28. Rxe5 Qf6 29. b3 Qd6 30. Re7 Bc8 31. Rxa7 Bd7 32. Qf2 f5 33. Rb7 Rf6 34.
c4 Rh6 35. h3 Rf8 36. Qe3 Rhf6 37. Re2 Bc8 38. Re7 Qg3 39. Qf2 Qd6 40. Qh4 Bd7
41. R2e5 h6 42. b4 Ba4 43. a3 Bc2 44. R5e6 Qd8 45. Qg3 R6f7 46. Qe5 Be4 47. Rxf7
Kxf7 48. Bh5+ 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.12"]
[Round "1.5"]
[White "Piorun, Kacper"]
[Black "Van Foreest, Jorden"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2611"]
[BlackElo "2667"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]
[WhiteFideId "1130420"]
[BlackFideId "1039784"]
[EventDate "2020.02.12"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O
O-O 9. Kh1 b6 10. Be3 Bb7 11. f3 Nbd7 12. a4 Qc7 13. Qd2 Rfc8 14. Rac1 Bc6 15.
Rfd1 Rcb8 16. Ra1 h6 17. Nc1 Rd8 18. N1a2 d5 19. Nxd5 Nxd5 20. exd5 Nf6 21. c4
Bxa4 22. Rdc1 Bd7 23. Nc3 Bc5 24. Bd3 a5 25. Re1 Re8 26. Re2 Qd6 27. Bxc5 Qxc5
28. Rae1 a4 29. Rxe5 Rxe5 30. Rxe5 a3 31. Re1 h5 32. bxa3 Rxa3 33. Ne4 Nxe4 34.
Bxe4 f5 35. Bb1 Qxc4 36. Qg5 Qxd5 37. h3 Ra8 38. Re7 Qd4 39. Kh2 Ra1 40. Qg6
Qf4+ 41. Qg3 Qxg3+ 42. Kxg3 Rxb1 43. Rxd7 Rb4 44. f4 Kh7 45. Rd6 g6 46. Rd7+ Kh6
47. h4 b5 48. Rb7 Rb1 49. Kh2 Rf1 50. g3 Rf2+ 51. Kg1 Rd2 52. Rxb5 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.13"]
[Round "2.1"]
[White "Esipenko, Andrey"]
[Black "Stefansson, Hannes"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2654"]
[BlackElo "2529"]
[ECO "E20"]
[Opening "Nimzo-Indian"]
[Variation "Kmoch variation"]
[WhiteFideId "24175439"]
[BlackFideId "2300087"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 c5 5. d5 O-O 6. e4 b5 7. e5 Ne8 8. f4 d6 9.
Nf3 dxe5 10. fxe5 Nd7 11. Bg5 Qa5 12. Qc2 exd5 13. cxd5 f6 14. Bh4 Nxe5 15. Nxe5
fxe5 16. Bd3 Nf6 17. O-O c4 18. Rxf6 cxd3 19. Rxf8+ Bxf8 20. Qxd3 Qb6+ 21. Bf2
Bc5 22. Qd2 Bb7 23. Rd1 Rf8 24. Ne4 Bxf2+ 25. Nxf2 Rd8 26. Qe2 Rxd5 27. Rxd5
Bxd5 28. Qxe5 Bf7 29. a3 h6 30. h3 a6 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.13"]
[Round "2.2"]
[White "Abasov, Nijat"]
[Black "Van Foreest, Jorden"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2670"]
[BlackElo "2667"]
[ECO "E62"]
[Opening "King's Indian"]
[Variation "fianchetto, Uhlmann (Szabo) variation"]
[WhiteFideId "13402960"]
[BlackFideId "1039784"]
[EventDate "2020.02.12"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 O-O 5. d4 d6 6. Nf3 Nc6 7. O-O e5 8. e3 Bf5
9. b3 a5 10. Bb2 Re8 11. a3 exd4 12. Nxd4 Nxd4 13. exd4 c6 14. d5 Ne4 15. Bxe4
Bxe4 16. Nxe4 Bxb2 17. Ra2 Rxe4 18. Rxb2 Qf6 19. Re2 Rxe2 20. Qxe2 a4 21. dxc6
bxc6 22. bxa4 Rxa4 23. Qe8+ Kg7 24. Qxc6 Rxa3 25. c5 dxc5 26. Qxc5 Qc3 27. Rc1
Qxc5 28. Rxc5 h5 29. h4 Ra8 30. Kg2 Rb8 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.13"]
[Round "2.3"]
[White "Cernousek, Lukas"]
[Black "Bartel, Mateusz"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2442"]
[BlackElo "2639"]
[ECO "C47"]
[Opening "Four knights"]
[Variation "Scotch, 4...exd4"]
[WhiteFideId "311707"]
[BlackFideId "1112635"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 O-O 8.
O-O Re8 9. Bg5 h6 10. Bh4 g5 11. Bg3 Bxc3 12. bxc3 Nxe4 13. f4 d6 14. Qh5 Bf5
15. fxg5 Bg6 16. Qxh6 Qxg5 17. Qxg5 Nxg5 18. Rab1 Rab8 19. Rb4 Ne4 20. Be1 a5
21. Rxb8 Rxb8 22. c4 a4 23. Ba5 Rb2 24. Re1 Nc5 25. Bc3 Rb8 26. Bxg6 fxg6 27.
Bd4 Rb4 28. Bxc5 dxc5 29. Re6 Kf7 30. Rxc6 Rxc4 31. Rxc7+ Ke6 32. Rc6+ Kf5 33.
Kf2 Rxc2+ 34. Ke3 a3 35. h4 c4 36. g4+ Ke5 37. Rxg6 Rxa2 38. Rg5+ Ke6 39. Ra5
Ra1 40. Kd2 a2 41. Kc2 Rg1 42. Rxa2 Rg2+ 43. Kb1 Rxg4 44. Rh2 Kf6 45. Kc2 Kg6
46. h5+ Kh6 47. Kc3 Rg5 48. Kxc4 Rxh5 49. Rxh5+ Kxh5 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.13"]
[Round "2.4"]
[White "Kriebel, Tadeas"]
[Black "Piorun, Kacper"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2524"]
[BlackElo "2611"]
[ECO "E91"]
[Opening "King's Indian"]
[Variation "6.Be2"]
[WhiteFideId "330027"]
[BlackFideId "1130420"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Bg4 7. O-O Nfd7 8. h3
Bxf3 9. Bxf3 c5 10. e5 cxd4 11. Bxb7 dxc3 12. Bxa8 Nxe5 13. bxc3 Nxc4 14. Rb1
Nd7 15. Bd5 Ncb6 16. Bg5 h6 17. Be3 Qc7 18. Bb3 Nc5 19. Qf3 e6 20. c4 a5 21.
Rfc1 Nbd7 22. Bc2 Ne5 23. Qe2 Nc6 24. a3 h5 25. Rd1 Rd8 26. f4 Bf6 27. Kh1 h4
28. Qf3 Kg7 29. Bf2 a4 30. Qg4 Rh8 31. Qe2 Na5 32. Rb5 Nab3 33. Qg4 Qe7 34. Rb6
Rd8 35. Qf3 Na5 36. Rb4 Rc8 37. Qe2 Nc6 38. Rb6 Qc7 39. Rb5 Na7 40. Rbb1 Nc6 41.
Bxc5 dxc5 42. Qe4 Kf8 43. Bxa4 Nd4 44. Rb7 Qa5 45. Bd7 Rc7 46. Rxc7 Qxc7 47. Bb5
Nf5 48. Qf3 Bd4 49. a4 Be3 50. Rd7 Qb8 51. Rb7 Qd8 52. Kh2 Qd4 53. Rd7 Bxf4+ 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.13"]
[Round "2.5"]
[White "Nguyen, Thai Dai Van"]
[Black "Krejci, Jan2"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2560"]
[BlackElo "2559"]
[ECO "A14"]
[Opening "English"]
[Variation "Neo-Catalan declined"]
[WhiteFideId "358878"]
[BlackFideId "322156"]
[EventDate "2020.02.12"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Qc2 a6 8. a4
Bd7 9. Qxc4 Bc6 10. Bg5 Nbd7 11. Nc3 h6 12. Bxf6 Nxf6 13. Rfe1 Bxf3 14. Bxf3 c6
15. a5 Qd6 16. e3 Rad8 17. Red1 Rd7 18. Na4 Qb8 19. Nb6 Rdd8 20. Qb3 Nd5 21. Nc4
Nc7 22. h4 Nb5 23. Kg2 Bf6 24. Qc2 Rfe8 25. h5 Nd6 26. Nb6 Nc8 27. Nc4 Nd6 28.
Nb6 Nc8 29. Na4 Qc7 30. Nc5 Qe7 31. Rac1 Nd6 32. b4 Nb5 33. Qb3 Qc7 34. Be4 Be7
35. Nd3 Nd6 36. Bf3 Nb5 37. Be2 Qd6 38. Nc5 Qb8 39. Nd3 Qd6 40. Nc5 Qc7 41. Ne4
Nd6 42. Nc3 Qd7 43. Bf3 Nb5 44. Nxb5 cxb5 45. e4 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.14"]
[Round "3.1"]
[White "Piorun, Kacper"]
[Black "Esipenko, Andrey"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2611"]
[BlackElo "2654"]
[ECO "C78"]
[Opening "Ruy Lopez"]
[Variation "5.O-O"]
[WhiteFideId "1130420"]
[BlackFideId "24175439"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. a4 Rb8 8. axb5
axb5 9. Nxe5 Nxe5 10. d4 Bxd4 11. Qxd4 d6 12. f4 Nc6 13. Qc3 Ne7 14. e5 Ne4 15.
Qe1 Nc5 16. Ba2 Bf5 17. Be3 Ne6 18. exd6 Qxd6 19. Qf2 O-O 20. Bb3 Rfd8 21. Nc3
Qc6 22. h3 h5 23. Ra5 Qe8 24. Re1 c6 25. Qh4 Ng6 26. Qxh5 Nd4 27. Ra7 Nxb3 28.
Bf2 Qf8 29. cxb3 Bc2 30. f5 Nf4 31. Qf3 Nd5 32. Rc1 Nb4 33. Rxc2 Nxc2 34. Ne4
Ra8 35. Bc5 Qxc5+ 36. Nxc5 Nd4 37. Qg4 Rxa7 38. f6 g6 39. Kh2 Nf5 40. Qe2 Ra1
41. g4 Rh1+ 42. Kg2 Rhd1 43. Ne4 Nh4+ 44. Kg3 g5 45. Nxg5 Ng6 46. Nf3 R1d6 47.
Qe3 Rxf6 48. h4 Re6 49. Qg5 Rd5 50. Qc1 Rd3 51. Kg2 Rf6 52. Ng5 Nxh4+ 53. Kg1
Rg3+ 54. Kh2 Rxg4 55. Kh3 Rgf4 56. Qe1 Ng6 57. Qe8+ Kg7 58. Nxf7 Rxf7 59. Qxc6
Rf3+ 60. Kh2 Rxb3 61. Kg1 Rg3+ 62. Kh2 Rg5 63. Qc3+ Ne5 64. b4 Kh8 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.14"]
[Round "3.2"]
[White "Bartel, Mateusz"]
[Black "Nguyen, Thai Dai Van"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2639"]
[BlackElo "2560"]
[ECO "D30"]
[Opening "QGD"]
[WhiteFideId "1112635"]
[BlackFideId "358878"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 dxc4 5. e4 c5 6. Nc3 cxd4 7. Qxd4 Qxd4 8.
Nxd4 Bb4 9. f3 Bd7 10. Bxc4 O-O 11. O-O-O Rc8 12. Be2 Bxc3 13. bxc3 Rxc3+ 14.
Kb2 Rc8 15. Rc1 Rxc1 16. Rxc1 Nc6 17. Nb5 Kf8 18. g4 h6 19. Be3 b6 20. h4 Ke7
21. g5 hxg5 22. Bxg5 Kf8 23. Rd1 Be8 24. Nd6 e5 25. Bxf6 gxf6 26. Bb5 Nd4 27.
Nxe8 Nxb5 28. Nxf6 Ke7 29. Nd5+ Kf8 30. h5 Kg7 31. Rg1+ Kh6 32. Nf6 Nd4 33. Ng4+
Kxh5 34. Nxe5 f6 35. Nd7 Nxf3 36. Nxf6+ Kh6 37. Rg3 Nd4 38. Rd3 Kg6 39. Nd7 Ne6
40. Rd6 Kf7 41. Ne5+ Ke7 42. Rd7+ Kf6 43. Nc6 Nc5 44. e5+ Kf5 45. Rf7+ Ke4 46.
Rxa7 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.14"]
[Round "3.3"]
[White "Stefansson, Hannes"]
[Black "Cernousek, Lukas"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2529"]
[BlackElo "2442"]
[ECO "C11"]
[Opening "French"]
[Variation "Steinitz, Boleslavsky variation"]
[WhiteFideId "2300087"]
[BlackFideId "311707"]
[EventDate "2020.02.12"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4
Qb6 9. Qd2 Qxb2 10. Rb1 Qa3 11. Bb5 Nxd4 12. Bxd4 Bb4 13. Rb3 Qa5 14. a3 Be7 15.
f5 exf5 16. Nxd5 Qxd2+ 17. Kxd2 Bd8 18. Rf1 a6 19. Bd3 Nf8 20. Bb6 Be6 21. c4
Nd7 22. Bxd8 Rxd8 23. Rxb7 O-O 24. Bxf5 Nxe5 25. Kc3 Bxd5 26. cxd5 Rxd5 27. Rc7
g6 28. Bc2 Rfd8 29. Re1 Kg7 30. Re2 h5 31. Bb3 Rb5 32. Kc2 Rd7 33. Rxd7 Nxd7 34.
Re7 Ne5 35. Kc3 Kf6 36. Ra7 Rc5+ 37. Kd4 Ra5 38. Rb7 Nc6+ 39. Kc3 Ne5 40. Rb6+
Ke7 41. Kb4 Rb5+ 42. Rxb5 axb5 43. Kxb5 Kd6 44. a4 f5 45. h4 Kc7 46. Kc5 Kb7 47.
Bd5+ Ka6 48. Kd4 Nd7 49. Bf7 Nf8 50. Ke5 Ka5 51. Be8 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.14"]
[Round "3.4"]
[White "Krejci, Jan2"]
[Black "Abasov, Nijat"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2559"]
[BlackElo "2670"]
[ECO "E21"]
[Opening "Nimzo-Indian"]
[Variation "three knights variation"]
[WhiteFideId "322156"]
[BlackFideId "13402960"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. Bd2 Bb7 6. e3 O-O 7. Bd3 d5 8. cxd5
exd5 9. Rc1 Be7 10. O-O c5 11. Ne5 Nc6 12. Nxc6 Bxc6 13. dxc5 bxc5 14. Ne2 Rb8
15. Bc3 Qd6 16. b3 Rfe8 17. Qc2 g6 18. Rfd1 Ng4 19. Ng3 Ba8 20. Be2 Qe6 21. Ba1
Ne5 22. Bf1 Nd7 23. Qc3 Bf6 24. Qa5 Qb6 25. Qa4 Bxa1 26. Rxa1 Nf6 27. Rac1 a5
28. Be2 Rbc8 29. Qb5 Re6 30. Rc2 Qa7 31. Rdc1 Rec6 32. Qa4 Qb6 33. Qb5 Qa7 34.
Qa4 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.14"]
[Round "3.5"]
[White "Van Foreest, Jorden"]
[Black "Kriebel, Tadeas"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2667"]
[BlackElo "2524"]
[ECO "D02"]
[Opening "Queen's bishop game"]
[WhiteFideId "1039784"]
[BlackFideId "330027"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 Bd6 5. Ne5 O-O 6. Nd2 c5 7. c3 b6 8. h4 Qc7
9. h5 Nbd7 10. Ndf3 cxd4 11. exd4 Ne4 12. Bd3 Nxe5 13. Bxe5 Bxe5 14. Nxe5 f6 15.
Ng4 e5 16. Ne3 exd4 17. cxd4 Qf4 18. Bxe4 Qxe4 19. h6 Ba6 20. Qg4 Qxg4 21. Nxg4
Rfe8+ 22. Ne3 Rac8 23. Kd2 Re4 24. Rhd1 Rxd4+ 25. Ke1 Rh4 26. f3 Rxh6 27. Kf2
Rh5 28. Rd4 Re5 29. a4 Bb7 30. Rad1 Rce8 31. R1d3 h5 32. b4 Kf7 33. Nxd5 Bxd5
34. Rxd5 Rxd5 35. Rxd5 g5 36. a5 bxa5 37. Rxa5 Re7 38. f4 gxf4 39. Rxh5 Re4 40.
Rh7+ Kg6 41. Rxa7 Rxb4 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.15"]
[Round "4.1"]
[White "Nguyen, Thai Dai Van"]
[Black "Stefansson, Hannes"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2560"]
[BlackElo "2529"]
[ECO "C43"]
[Opening "Petrov"]
[Variation "modern attack, Symmetrical variation"]
[WhiteFideId "358878"]
[BlackFideId "2300087"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. O-O Bd6 8.
Nc3 Nxc3 9. bxc3 O-O 10. Qh5 f5 11. Re1 Qf6 12. Qf3 c6 13. Bf4 Rae8 14. h4 Re6
15. a4 Rfe8 16. Rxe6 Qxe6 17. Qg3 Bxf4 18. Qxf4 Qf7 19. Rb1 Bc8 20. a5 a6 21.
Kf1 Kf8 22. g3 h6 23. Kg2 Kg8 24. Rh1 Qe7 25. c4 Qb4 26. cxd5 cxd5 27. Ra1 Qb2
28. Rc1 Qc3 29. Rb1 Qxa5 30. Bxf5 Qd8 31. Bg6 Rf8 32. Qe5 Qf6 33. Qxf6 Rxf6 34.
h5 b5 35. Re1 Be6 36. f4 a5 37. Ra1 a4 38. Be8 Bf5 39. Bxb5 Bxc2 40. Rc1 Rb6 41.
Rxc2 Rxb5 42. Rc8+ Kf7 43. Ra8 Rb4 44. Kf3 Rxd4 45. Ra7+ Kf6 46. Ra6+ Kf7 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.15"]
[Round "4.2"]
[White "Cernousek, Lukas"]
[Black "Piorun, Kacper"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2442"]
[BlackElo "2611"]
[ECO "B40"]
[Opening "Sicilian defence"]
[WhiteFideId "311707"]
[BlackFideId "1130420"]
[EventDate "2020.02.12"]

1. e4 c5 2. Nf3 e6 3. c4 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 Bb4 7. Nxc6 bxc6 8.
Bd3 e5 9. O-O Bc5 10. Re1 d6 11. Be3 Bxe3 12. Rxe3 Rb8 13. Qd2 O-O 14. Be2 Ne8
15. c5 Qe7 16. cxd6 Nxd6 17. Rd1 Nb7 18. Na4 Nd8 19. Qc3 Qc7 20. Nc5 Ne6 21.
Nxe6 Bxe6 22. b3 Rfd8 23. Rc1 h6 24. h3 Rbc8 25. Ba6 Rb8 26. Be2 Rbc8 27. Ba6
Rb8 28. Rd3 Rxd3 29. Bxd3 Qd6 30. Be2 Rb4 31. Bf3 a5 32. Rd1 Qc7 33. Qc5 Rb5 34.
Qd6 Qxd6 35. Rxd6 Rc5 36. Rd8+ Kh7 37. Rd2 Kg6 38. Bg4 Kf6 39. Kf1 a4 40. Bxe6
Kxe6 41. Ke2 axb3 42. axb3 Rb5 43. Rd3 Rb4 44. f3 g6 45. Kd2 c5 46. Kc3 Rd4 47.
Rd2 f5 48. exf5+ gxf5 49. Ra2 e4 50. fxe4 fxe4 51. Ra6+ Kd5 52. Rxh6 Rd3+ 53.
Kc2 Rg3 54. h4 Rxg2+ 55. Kc3 Rg3+ 56. Kc2 Kd4 57. Rd6+ Ke5 58. Rc6 Kd5 59. Rc8
Rh3 60. Rd8+ Ke5 61. Rc8 Kd4 62. Rd8+ Ke3 63. Rd5 Kf2 64. Rxc5 e3 65. Re5 Ke1
66. b4 e2 67. b5 Rxh4 68. Kd3 Rh3+ 69. Kc4 Kd2 70. Rxe2+ Kxe2 71. b6 Rh8 72. Kd5
Kd3 73. b7 Rb8 74. Kc6 Rxb7 75. Kxb7 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.15"]
[Round "4.3"]
[White "Esipenko, Andrey"]
[Black "Van Foreest, Jorden"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2654"]
[BlackElo "2667"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation, 6.O-O"]
[WhiteFideId "24175439"]
[BlackFideId "1039784"]
[EventDate "2020.02.12"]

1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O Nc6 7. Nc3 a6 8. d5
Na5 9. b3 b5 10. Bd3 b4 11. Ne4 exd5 12. Nxf6+ Qxf6 13. Rb1 Nc6 14. e4 Bg4 15.
exd5 Bxf3 16. Re1+ Be7 17. Qxf3 Qxf3 18. gxf3 Nd4 19. Kg2 Kd7 20. Be3 g6 21.
Rbc1 Rhc8 22. Bxd4 cxd4 23. Rc6 Rxc6 24. dxc6+ Kd6 25. Re4 Bf6 26. Rf4 Ke5 27.
Re4+ Kd6 28. Rf4 Ke5 29. Re4+ Kd6 30. Rf4 Ke5 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.15"]
[Round "4.4"]
[White "Krejci, Jan2"]
[Black "Bartel, Mateusz"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2559"]
[BlackElo "2639"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]
[WhiteFideId "322156"]
[BlackFideId "1112635"]
[EventDate "2020.02.12"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Nbd7 5. Bg5 h6 6. Bh4 c6 7. e3 g5 8. Bg3 Nh5
9. Be5 Nxe5 10. Nxe5 Nf6 11. Bd3 Nd7 12. O-O Nxe5 13. dxe5 Bd7 14. Qh5 Qc7 15.
f4 Bc5 16. Rae1 O-O-O 17. Kh1 Kb8 18. Qxf7 h5 19. cxd5 cxd5 20. Bb5 Rhf8 21. Qg6
Rg8 22. Qd3 Bc8 23. Rc1 Qg7 24. Rc2 a6 25. Ba4 Bb6 26. Bb3 Bd7 27. Ba4 Bc8 28.
Bb3 gxf4 29. exf4 Bd7 30. Ba4 d4 31. Bxd7 dxc3 32. Rd1 Qg4 33. h3 Qxf4 34. Rxc3
Rg7 35. Qd6+ Ka7 36. Rc8 Rxc8 37. Bxc8 Qg3 38. Qd2 Bf2 39. Bxb7 Kxb7 40. Qb4+
Ka7 41. Qe4 Qe3 42. Qc6 Qxe5 43. b4 Rc7 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.15"]
[Round "4.5"]
[White "Abasov, Nijat"]
[Black "Kriebel, Tadeas"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2670"]
[BlackElo "2524"]
[ECO "A18"]
[Opening "English"]
[Variation "Mikenas-Carls, Flohr variation"]
[WhiteFideId "13402960"]
[BlackFideId "330027"]
[EventDate "2020.02.12"]

1. c4 e6 2. Nc3 Nf6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 b6 8. Be2
Bb7 9. Bf3 Bxf3 10. Nxf3 Bd6 11. Qa4+ c6 12. O-O O-O 13. Rb1 Qf5 14. Rxb6 axb6
15. Qxa8 Qd3 16. Qa4 Qxc3 17. Be3 Rd8 18. Rb1 Bc7 19. h3 f6 20. Re1 Qd3 21. Rd1
Qf5 22. Qb3 Kh8 23. d5 exd5 24. Bxb6 Bxb6 25. Qxb6 Qc8 26. cxd5 cxd5 27. a4 Nd7
28. Qd4 Nf8 29. a5 Qc6 30. Qb4 Ne6 31. Re1 Kg8 32. a6 Ra8 33. a7 Nf8 34. Re7 Qa6
35. Qb8 Qc8 36. Qxc8 Rxc8 37. Rb7 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.16"]
[Round "5.1"]
[White "Stefansson, Hannes"]
[Black "Krejci, Jan2"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2529"]
[BlackElo "2559"]
[ECO "C92"]
[Opening "Ruy Lopez"]
[Variation "closed, Flohr-Zaitsev system (Lenzerheide variation)"]
[WhiteFideId "2300087"]
[BlackFideId "322156"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3
O-O 9. h3 Bb7 10. d4 Re8 11. Nbd2 exd4 12. cxd4 Nd7 13. Bd5 Nb6 14. Bxc6 Bxc6
15. d5 Bd7 16. Nd4 Bf6 17. N2f3 Nc4 18. b3 Ne5 19. Bb2 Qb8 20. Rc1 Qb6 21. Nxe5
Bxe5 22. Qd2 h6 23. Nc6 Bxb2 24. Qxb2 Bxc6 25. Rxc6 Qa7 26. Re3 Re7 27. Rg3 g6
28. Qf6 Rae8 29. Rcc3 Qb8 30. Rg4 Qd8 31. Rcg3 Qd7 32. Rh4 Kh7 33. Qg5 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.16"]
[Round "5.2"]
[White "Piorun, Kacper"]
[Black "Nguyen, Thai Dai Van"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2611"]
[BlackElo "2560"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]
[WhiteFideId "1130420"]
[BlackFideId "358878"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8.
Rxe5 O-O 9. d4 Bf6 10. Re2 b6 11. Re1 Bb7 12. Bf4 Ne4 13. Nd2 Re8 14. Nf3 d6 15.
a4 a6 16. Ra3 Qd7 17. Rae3 Qf5 18. Bg3 Qd7 19. Bf4 Qf5 20. Bg3 Qd7 21. Bf4 Qf5
22. Bg3 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.16"]
[Round "5.3"]
[White "Bartel, Mateusz"]
[Black "Abasov, Nijat"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2639"]
[BlackElo "2670"]
[ECO "E01"]
[Opening "Catalan"]
[Variation "closed"]
[WhiteFideId "1112635"]
[BlackFideId "13402960"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nc3 O-O 6. Nf3 dxc4 7. Ne5 Qd6 8. Nxc4
Qa6 9. b3 Rd8 10. a4 Bb4 11. Bd2 Rxd4 12. Qc1 Bd7 13. Be3 Nc6 14. O-O Bxc3 15.
Qxc3 Nd5 16. Qb2 Nxe3 17. fxe3 Rg4 18. Rad1 Be8 19. Bxc6 bxc6 20. Qa3 Qb7 21.
Rd3 Rg5 22. Qe7 h6 23. e4 Kh7 24. Rf4 Rg6 25. Ne5 Rg5 26. Nf3 Rg6 27. e5 Qb6+
28. Kg2 c5 29. h4 Bc6 30. Qxf7 Bxf3+ 31. exf3 Qa5 32. Rf6 Rxg3+ 33. Kxg3 Qe1+
34. Kg4 Qxe5 35. Qg6+ Kg8 36. Rxe6 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.16"]
[Round "5.4"]
[White "Van Foreest, Jorden"]
[Black "Cernousek, Lukas"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2667"]
[BlackElo "2442"]
[ECO "C11"]
[Opening "French"]
[Variation "Burn variation"]
[WhiteFideId "1039784"]
[BlackFideId "311707"]
[EventDate "2020.02.12"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Nbd7 6. Nf3 Be7 7. Nxf6+ Bxf6
8. Qd2 Bxg5 9. Nxg5 h6 10. Nf3 O-O 11. O-O-O b6 12. Bd3 Bb7 13. Qe3 Qf6 14. Ne5
Rad8 15. f4 Nxe5 16. dxe5 Qh4 17. Rd2 Kh8 18. Rhd1 Rd7 19. g3 Qe7 20. Be2 Rfd8
21. Rxd7 Rxd7 22. Rxd7 Qxd7 23. Qa3 Qd4 24. Qxa7 Qe3+ 25. Kd1 Bf3 26. Bxf3 Qxf3+
27. Kd2 Qf2+ 28. Kd3 Qf3+ 29. Kc4 Qd5+ 30. Kc3 Qc5+ 31. Kb3 Qb5+ 32. Ka3 Qc5+
33. b4 Qxc2 34. Qb7 c6 35. Qxb6 Qc3+ 36. Ka4 Qc2+ 37. Ka3 Qc3+ 38. Ka4 Qc2+ 39.
Ka3 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.16"]
[Round "5.5"]
[White "Kriebel, Tadeas"]
[Black "Esipenko, Andrey"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2524"]
[BlackElo "2654"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]
[WhiteFideId "330027"]
[BlackFideId "24175439"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 a6 6. Ne5 Bb4+ 7. Nc3 Nd5 8. O-O
O-O 9. Ne4 b5 10. b3 cxb3 11. axb3 Bb7 12. Nd3 Bc3 13. Bg5 Qe8 14. Rc1 Bxd4 15.
Ndc5 Bxc5 16. Nxc5 Bc6 17. e4 Nb6 18. Qc2 h6 19. Be3 a5 20. Nd3 N6d7 21. Qb2 b4
22. Rfd1 e5 23. Nc5 Nf6 24. f3 Bb5 25. Nb7 Nbd7 26. Ra1 Qe6 27. Nxa5 Rfb8 28.
Qf2 Ne8 29. Rdc1 Ra6 30. Bf1 Nd6 31. Bxb5 Rxb5 32. Nc6 Rxa1 33. Rxa1 Qxb3 34.
Qe2 Qc4 35. Ne7+ Kf8 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.18"]
[Round "6.1"]
[White "Bartel, Mateusz"]
[Black "Stefansson, Hannes"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2639"]
[BlackElo "2529"]
[ECO "E01"]
[Opening "Catalan"]
[Variation "closed"]
[WhiteFideId "1112635"]
[BlackFideId "2300087"]
[EventDate "2020.02.12"]

1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. d4 Be7 5. Nc3 O-O 6. Nf3 dxc4 7. Ne5 c5 8. dxc5
Qxd1+ 9. Nxd1 Bxc5 10. Nc3 Nc6 11. Nxc4 Nd5 12. Bd2 Rd8 13. Ne4 Be7 14. Rc1 b6
15. Nc3 Bc5 16. Ne3 Nde7 17. Na4 Bxe3 18. Bxe3 Ba6 19. f4 Rac8 20. Kf2 Nb4 21.
a3 Nc2 22. Be4 Nxe3 23. Kxe3 Bc4 24. Rhd1 Rxd1 25. Rxd1 Nd5+ 26. Bxd5 Bxd5 27.
Nc3 Bc6 28. Rd4 b5 29. Kd2 Kf8 30. e4 Ke7 31. e5 a5 32. Rd6 f6 33. Ne2 Bd7 34.
Ra6 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.18"]
[Round "6.2"]
[White "Nguyen, Thai Dai Van"]
[Black "Van Foreest, Jorden"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2560"]
[BlackElo "2667"]
[ECO "A26"]
[Opening "English"]
[Variation "Botvinnik system"]
[WhiteFideId "358878"]
[BlackFideId "1039784"]
[EventDate "2020.02.12"]

1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. d3 d6 6. e4 f5 7. Nge2 Nf6 8. Nd5 f4
9. gxf4 O-O 10. O-O Nh5 11. fxe5 dxe5 12. b4 Nd4 13. Nxd4 exd4 14. b5 c6 15.
bxc6 bxc6 16. Nb4 Qh4 17. f4 Bd7 18. e5 Nxf4 19. Bxf4 Rxf4 20. Rxf4 Qxf4 21. Qf3
Qxe5 22. Nxc6 Qe3+ 23. Qxe3 dxe3 24. Ne7+ Kh8 25. Bxa8 Bxa1 26. Bf3 Kg7 27. Nd5
Bf5 28. Be2 g5 29. Kg2 Bd4 30. Kf3 h5 31. Nxe3 Bg6 32. h3 Kf6 33. Nd5+ Ke5 34.
Ne7 Be8 35. Nd5 a5 36. Bd1 Bc5 37. Kg2 Bg6 38. Be2 Kd4 39. Nc7 Ke3 40. Ne6 Be7
41. Bf3 Bxd3 42. Bd5 Be4+ 43. Bxe4 Kxe4 44. Kg3 a4 45. Ng7 Kd3 46. Nxh5 Kc3 47.
Ng7 Kb2 48. Ne6 Kxa2 49. c5 a3 50. c6 Bd6+ 51. Kf3 Kb2 52. Nc5 a2 53. Na4+ Kc2 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.18"]
[Round "6.3"]
[White "Abasov, Nijat"]
[Black "Esipenko, Andrey"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2670"]
[BlackElo "2654"]
[ECO "C44"]
[Opening "Ponziani"]
[Variation "Jaenisch counter-attack"]
[WhiteFideId "13402960"]
[BlackFideId "24175439"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 exd4 5. e5 Nd5 6. Bc4 Nb6 7. Bb3 Be7 8. O-O
d6 9. exd6 Qxd6 10. Nxd4 Nxd4 11. cxd4 c6 12. Nc3 O-O 13. Re1 Bf6 14. Be3 Bf5
15. Qf3 Qd7 16. h3 Rad8 17. Rad1 Nd5 18. Bxd5 cxd5 19. Bf4 Bc2 20. Rd2 Bg6 21.
Be5 Bg5 22. Rde2 Qf5 23. Qg3 f6 24. Bd6 Rfe8 25. Rxe8+ Rxe8 26. Rxe8+ Bxe8 27.
f4 Bh6 28. Qe3 Bc6 29. Qe7 Qc8 30. Kh2 b5 31. b4 a6 32. a3 g6 33. Qxf6 Bg7 34.
Qg5 Bxd4 35. Nxd5 Qd7 36. Qe7 Qe8 37. Be5 Bxe5 38. fxe5 Qf7 39. e6 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.18"]
[Round "6.4"]
[White "Krejci, Jan2"]
[Black "Piorun, Kacper"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2559"]
[BlackElo "2611"]
[ECO "E60"]
[Opening "King's Indian"]
[Variation "3.g3"]
[WhiteFideId "322156"]
[BlackFideId "1130420"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 c5 5. Nf3 O-O 6. Nc3 cxd4 7. Nxd4 Qc7 8. Nd5
Nxd5 9. cxd5 Qb6 10. Nb3 d6 11. O-O Qa6 12. Nd4 Qb6 13. Nb3 Qa6 14. Nd4 Qb6 15.
Nc2 Na6 16. a4 Bd7 17. a5 Qb5 18. Nd4 Qc4 19. Be3 Rfc8 20. Ra3 Nb4 21. Rc3 Qa2
22. Ra3 Qc4 23. Rc3 Qa2 24. Ra3 Qc4 25. Rc3 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.18"]
[Round "6.5"]
[White "Cernousek, Lukas"]
[Black "Kriebel, Tadeas"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2442"]
[BlackElo "2524"]
[ECO "C47"]
[Opening "Four knights"]
[Variation "Scotch, 4...exd4"]
[WhiteFideId "311707"]
[BlackFideId "330027"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Nxe4 6. Nxe4 Qe7 7. f3 d5 8.
Bb5 Bd7 9. O-O dxe4 10. Bxc6 bxc6 11. Re1 O-O-O 12. Rxe4 Qb4 13. Nb3 Qb7 14. Qe2
f5 15. Ra4 c5 16. Ra5 Re8 17. Qf2 c4 18. Rxa7 Re1+ 19. Qxe1 Qxa7+ 20. Be3 Qa4
21. Nd4 Bd6 22. Qd2 Re8 23. a3 Be5 24. Bf4 Bf6 25. c3 h6 26. Re1 Rxe1+ 27. Qxe1
Bxd4+ 28. cxd4 g5 29. Be5 Qc2 30. Qc3 Qd1+ 31. Kf2 Be6 32. h3 Qb1 33. d5 Bxd5
34. Qa5 Qc2+ 35. Kg1 Qd1+ 36. Kh2 Kb7 37. Qb5+ Kc8 38. Qa5 Kb7 39. Qxc7+ Ka6 40.
Qd6+ Kb5 41. Qd7+ Kb6 42. Bc7+ Ka6 43. a4 Qd4 44. Qb5+ Ka7 45. Bd6 Qd2 46. Bc5+
Ka8 47. Qa6+ 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.19"]
[Round "7.1"]
[White "Stefansson, Hannes"]
[Black "Abasov, Nijat"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2529"]
[BlackElo "2670"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]
[WhiteFideId "2300087"]
[BlackFideId "13402960"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8.
O-O d6 9. Nc3 Ne4 10. Nxe4 Bxe4 11. Qe3 Bb7 12. Qd3 f5 13. Ne1 Bxg2 14. Nxg2 e5
15. dxe5 dxe5 16. Qf3 e4 17. Qc3 Nc6 18. Rfd1 Qf6 19. Qxf6 Rxf6 20. Rd7 Rf7 21.
Rad1 Ne5 22. Rxf7 Kxf7 23. Ne3 g6 24. Kg2 Re8 25. f4 exf3+ 26. exf3 Re7 27. Kf2
Rd7 28. Rxd7+ Nxd7 29. Ke2 Ke6 30. f4 Kd6 31. b4 a6 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.19"]
[Round "7.2"]
[White "Piorun, Kacper"]
[Black "Bartel, Mateusz"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2611"]
[BlackElo "2639"]
[ECO "C15"]
[Opening "French"]
[Variation "Winawer (Nimzovich) variation"]
[WhiteFideId "1130420"]
[BlackFideId "1112635"]
[EventDate "2020.02.12"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 Be6 8.
Qf3 Qd7 9. Ne2 O-O-O 10. h3 Nge7 11. Ng3 g6 12. O-O h5 13. Re1 h4 14. Nf1 Rh5
15. Nh2 Bf5 16. Ng4 Ng8 17. Bf4 Bxd3 18. cxd3 f6 19. Re2 Rh7 20. Rae1 Qf5 21.
Ne3 Qh5 22. Ng4 Qf5 23. Re8 Re7 24. Rxd8+ Nxd8 25. Ne3 Qd7 26. Rb1 c6 27. Bh2
Ne6 28. Qg4 Qe8 29. Qxh4 b6 30. c4 Rd7 31. Re1 Kb7 32. Nc2 Qf7 33. Qg4 Nc7 34.
c5 Nh6 35. Qf4 g5 36. Qd2 Nf5 37. Rb1 Ne7 38. a4 Na6 39. Qc3 Nc8 40. Na1 Re7 41.
Nb3 Re6 42. cxb6 axb6 43. Na5+ Ka8 44. Nxc6 Qe8 45. Rc1 Kb7 46. Nb4 Nxb4 47.
Qxb4 Rc6 48. Re1 Re6 49. Rxe6 Qxe6 50. Bg3 Ne7 51. a5 Nf5 52. Kh2 Qc6 53. axb6
Qxb6 54. Qa4 Qc6 55. Qb3+ Kc8 56. Qb8+ Kd7 57. Qg8 Qe6 58. Qh7+ Ke8 59. h4 gxh4
60. Bxh4 Kf8 61. Qg6 Ke7 62. g4 Qd6+ 63. Kh3 Nxh4 64. Qh7+ Kf8 65. Qxh4 Qf4 66.
Qg3 Qxd4 67. Kh4 Kf7 68. Kh5 Qc3 69. Qe3 Qa1 70. Kh4 Qg1 71. Kh3 Kg7 72. Qf3 d4
73. Qf5 Qh1+ 74. Kg3 Qg1+ 75. Kf3 Qh1+ 76. Ke2 Qa1 77. Qe4 Qa7 78. Kf3 Qc5 79.
Kg3 Qb4 80. Kh4 Qc5 81. f4 Qa7 82. Qe6 Qc7 83. Qe4 Qa7 84. g5 Qc5 85. Kh5 fxg5
86. Qe5+ 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.19"]
[Round "7.3"]
[White "Van Foreest, Jorden"]
[Black "Krejci, Jan2"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2667"]
[BlackElo "2559"]
[ECO "C92"]
[Opening "Ruy Lopez"]
[Variation "closed, 9.h3"]
[WhiteFideId "1039784"]
[BlackFideId "322156"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3
O-O 9. h3 Re8 10. d4 h6 11. Nbd2 Bf8 12. Nf1 Bd7 13. Ng3 Na5 14. Bc2 c5 15. d5
Nc4 16. Nh2 a5 17. a4 b4 18. b3 Nb6 19. c4 Nc8 20. f4 Nh7 21. Rf1 Be7 22. fxe5
dxe5 23. Be3 Ra6 24. Qh5 Rg6 25. Nf5 Qb6 26. Nf3 Bd8 27. N3h4 Rf6 28. Qg4 Bxf5
29. Nxf5 Rg6 30. Nxh6+ gxh6 31. Qxc8 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.19"]
[Round "7.4"]
[White "Esipenko, Andrey"]
[Black "Cernousek, Lukas"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2654"]
[BlackElo "2442"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange variation"]
[WhiteFideId "24175439"]
[BlackFideId "311707"]
[EventDate "2020.02.12"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 cxd4 8.
cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bc4 Nd7 12. O-O b6 13. Rad1 Bb7 14. Rfe1
Rc8 15. Bb3 Re8 16. h3 h6 17. Re3 Qf6 18. Qe2 Qf4 19. e5 Nf8 20. Bc2 Rc7 21. g3
Bxf3 22. Rxf3 Qg5 23. Be4 Ng6 24. Re3 Rec8 25. h4 Qe7 26. d5 exd5 27. Bxd5 Nf8
28. Bb3 Rc1 29. Rd3 Rxd1+ 30. Rxd1 Rc5 31. f4 Rc3 32. Kh2 Qc5 33. Rd8 Rc1 34. e6
Qg1+ 35. Kh3 Qh1+ 36. Qh2 Qe4 37. exf7+ Kh7 38. Bd1 Qf5+ 39. Bg4 Qxf7 40. Qd2
Rh1+ 41. Kg2 Ra1 42. Rd5 Rc1 43. h5 Rc5 44. Rd8 Rc7 45. Bf3 Re7 46. Qc2+ g6 47.
hxg6+ 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.19"]
[Round "7.5"]
[White "Kriebel, Tadeas"]
[Black "Nguyen, Thai Dai Van"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2524"]
[BlackElo "2560"]
[ECO "D43"]
[Opening "QGD semi-Slav"]
[WhiteFideId "330027"]
[BlackFideId "358878"]
[EventDate "2020.02.12"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. cxd5 exd5 6. Bf4 Bd6 7. Bxd6 Qxd6 8.
e3 Bf5 9. Bd3 Bxd3 10. Qxd3 O-O 11. O-O Nbd7 12. h3 Rfe8 13. Nd2 Re6 14. b4 Rae8
15. b5 c5 16. dxc5 Nxc5 17. Qd4 Rc8 18. Rac1 Ree8 19. Rfd1 Red8 20. Nde4 Nfxe4
21. Nxe4 Nxe4 22. Rxc8 Rxc8 23. Qxe4 dxe4 24. Rxd6 g6 25. Rd7 Rc2 26. a3 Ra2 27.
Rxb7 Rxa3 28. Kh2 Kg7 29. Kg3 g5 30. h4 h6 31. Kg4 Kg6 32. h5+ Kf6 33. b6 axb6
34. Rxb6+ Kg7 35. Rb4 Ra5 36. Kg3 Re5 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.20"]
[Round "8.1"]
[White "Stefansson, Hannes"]
[Black "Piorun, Kacper"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2529"]
[BlackElo "2611"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]
[WhiteFideId "2300087"]
[BlackFideId "1130420"]
[EventDate "2020.02.12"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. g3 e5 7. Nde2 Be7 8. Bg2
O-O 9. O-O Nbd7 10. a4 b6 11. Nd5 Nxd5 12. Qxd5 Rb8 13. Nc3 Nf6 14. Qd3 h6 15.
b3 Qc7 16. Ba3 Bd7 17. Bb4 b5 18. axb5 axb5 19. Rfd1 Rfc8 20. Qe3 Ra8 21. Rxa8
Rxa8 22. Qd3 Bf8 23. Bf3 Rc8 24. Kg2 Qb6 25. Rd2 Bc6 26. Qe2 Qb8 27. h4 Qa8 28.
Bxd6 b4 29. Na4 Nxe4 30. Bxe4 Bxe4+ 31. f3 Bxd6 32. Qxe4 Qxe4 33. fxe4 Bc5 34.
Nxc5 Rxc5 35. Rd8+ Kh7 36. Rb8 Rxc2+ 37. Kh3 h5 38. Rxb4 f6 39. Rc4 Re2 40. Ra4
Kh6 41. Rc4 Kg6 42. Rb4 Rb2 43. Rb7 Re2 44. Rb4 Kh6 45. Rc4 g5 46. hxg5+ Kxg5
47. b4 Rb2 48. Rc3 Rxb4 49. Re3 Rb2 50. Re1 Rb3 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.20"]
[Round "8.2"]
[White "Bartel, Mateusz"]
[Black "Van Foreest, Jorden"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2639"]
[BlackElo "2667"]
[ECO "D12"]
[Opening "QGD Slav"]
[Variation "4.e3 Bf5"]
[WhiteFideId "1112635"]
[BlackFideId "1039784"]
[EventDate "2020.02.12"]

1. c4 c6 2. d4 Nf6 3. Nf3 d5 4. e3 Bf5 5. Nc3 e6 6. Nh4 Bg6 7. Be2 Nbd7 8. O-O
Bd6 9. g3 O-O 10. Nxg6 hxg6 11. Rb1 a5 12. b3 Qe7 13. Bb2 Rfd8 14. Bf3 Rab8 15.
Qe2 Ba3 16. Ba1 e5 17. cxd5 exd4 18. dxc6 d3 19. Qd1 bxc6 20. Na4 Ne5 21. Bg2 g5
22. Bc3 Rb5 23. Nb2 Bxb2 24. Rxb2 Nd5 25. Bd4 Rb4 26. Rd2 Rxd4 27. exd4 Nc3 28.
Qe1 Rxd4 29. Qe3 Ne2+ 30. Rxe2 dxe2 31. Qxe2 Qd6 32. Qa6 Qd8 33. Re1 f6 34. Bxc6
Kh7 35. Qe2 Kh6 36. Be4 Rd2 37. Qf1 g4 38. h3 Qd4 39. hxg4 Kg5 40. Kg2 Nxg4 41.
Re2 Rd1 42. f4+ Kh6 43. Qf3 Rd2 44. Qxg4 Qxe4+ 45. Kf2 Qd4+ 46. Kg2 Qe4+ 47. Kf2
Qd4+ 48. Kg2 Qe4+ 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.20"]
[Round "8.3"]
[White "Nguyen, Thai Dai Van"]
[Black "Esipenko, Andrey"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2560"]
[BlackElo "2654"]
[ECO "E46"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 O-O"]
[WhiteFideId "358878"]
[BlackFideId "24175439"]
[EventDate "2020.02.12"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1
Be7 9. Bd3 Bb7 10. O-O c5 11. dxc5 bxc5 12. Re1 Nc6 13. Bb1 Rc8 14. e4 dxe4 15.
Nxe4 Nd4 16. Nxd4 cxd4 17. Rxc8 Bxc8 18. Qe2 Qb6 19. b3 Bb7 20. Nxf6+ Bxf6 21.
Bd3 Qc5 22. Rc1 Qd5 23. f3 Qd8 24. Bf4 Re8 25. Qd2 h6 26. Re1 Rxe1+ 27. Qxe1 Bd5
28. Qb4 Be7 29. Qxd4 Bf6 30. Be5 Bxe5 31. Qxe5 Bxb3 32. axb3 Qxd3 33. Qe8+ Kh7
34. Qxf7 a5 35. Qe6 Qd2 36. Qe4+ Kh8 37. Qe8+ Kh7 38. Qe4+ Kh8 39. Qe8+ Kh7 40.
Qe6 Kh8 41. h3 Qd8 42. Qe3 a4 43. bxa4 Qd1+ 44. Kh2 Qxa4 45. f4 Qc2 46. Qe5 Kh7
47. h4 Qd3 48. h5 Qc2 49. Qe3 Qd1 50. Qe4+ Kg8 51. Qe6+ Kh8 52. g4 Qf3 53. Qe8+
Kh7 54. Qg6+ Kh8 55. Qe8+ Kh7 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.20"]
[Round "8.4"]
[White "Abasov, Nijat"]
[Black "Cernousek, Lukas"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2670"]
[BlackElo "2442"]
[ECO "C11"]
[Opening "French"]
[Variation "Burn variation"]
[WhiteFideId "13402960"]
[BlackFideId "311707"]
[EventDate "2020.02.12"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Nbd7 6. Nxf6+ Nxf6 7. Nf3 c5 8.
c3 cxd4 9. Nxd4 Be7 10. Bd3 Qd5 11. Nf3 Bd7 12. Qe2 Bc6 13. O-O h6 14. Bf4 O-O
15. Be5 Nd7 16. Bg3 Nc5 17. Bc2 Ne4 18. Rfd1 Nxg3 19. hxg3 Qb5 20. Bd3 Bxf3 21.
gxf3 Qc6 22. Be4 Qc7 23. Qb5 Bc5 24. Kg2 Rfd8 25. a4 Rab8 26. a5 b6 27. a6 Be7
28. f4 Qc5 29. Qe2 Rxd1 30. Rxd1 Rd8 31. Rxd8+ Bxd8 32. Qd3 Qe7 33. Qb5 g6 34.
Qc6 Kg7 35. Qa8 b5 36. Qb8 b4 37. Qe5+ Kg8 38. Qb8 Kg7 39. cxb4 Bb6 40. Qe5+ Qf6
41. Qd6 Qd4 42. Qxd4+ Bxd4 43. b5 h5 44. Bc6 Kf6 45. f3 Bb6 46. b3 Ke7 47. Kf1
Kf6 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.20"]
[Round "8.5"]
[White "Krejci, Jan2"]
[Black "Kriebel, Tadeas"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2559"]
[BlackElo "2524"]
[ECO "D56"]
[Opening "QGD"]
[Variation "Lasker defence"]
[WhiteFideId "322156"]
[BlackFideId "330027"]
[EventDate "2020.02.12"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nc3 Ne4 8. Bxe7
Qxe7 9. Rc1 c6 10. Bd3 Nxc3 11. Rxc3 dxc4 12. Bxc4 Nd7 13. Qc2 b6 14. Bd3 c5 15.
Bh7+ Kh8 16. Be4 Rb8 17. O-O Nf6 18. dxc5 Nxe4 19. Qxe4 bxc5 20. b3 Bb7 21. Qf4
Bxf3 22. Qxf3 Rbd8 23. Rc2 Rd5 24. Rfc1 Rfd8 25. h3 Qd6 26. Qe2 f5 27. g3 a5 28.
e4 Re5 29. Rc4 Qd2 30. Qxd2 Rxd2 31. a4 fxe4 32. Rxc5 Red5 33. Rc8+ Kh7 34. Re1
Rf5 35. Rxe4 Rfxf2 36. Rc3 Rg2+ 37. Kh1 Rh2+ 38. Kg1 Rdg2+ 39. Kf1 Ra2 40. Kg1
Rag2+ 41. Kf1 Ra2 42. Kg1 Rhb2 43. Kf1 Rf2+ 44. Kg1 Rg2+ 45. Kh1 Rgb2 46. Re1
Rh2+ 47. Kg1 Rxh3 48. Rxe6 Rhh2 49. Rf3 Rhb2 50. Ree3 Kg6 51. Rf4 Kh5 52. Rh4+
Kg5 53. Rf4 Ra1+ 54. Rf1 Rxf1+ 55. Kxf1 Kg4 56. Rd3 g5 57. Rc3 Kh3 58. Rd3 g4
59. Re3 h5 60. Re5 h4 61. Rxa5 Kxg3 62. Rc5 h3 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.21"]
[Round "9.1"]
[White "Esipenko, Andrey"]
[Black "Krejci, Jan2"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2654"]
[BlackElo "2559"]
[ECO "A19"]
[Opening "English"]
[Variation "Mikenas-Carls, Sicilian variation"]
[WhiteFideId "24175439"]
[BlackFideId "322156"]
[EventDate "2020.02.12"]

1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. e5 Ng8 5. d4 cxd4 6. Qxd4 Nc6 7. Qf4 d6 8. Nf3
dxe5 9. Nxe5 Nf6 10. Nxc6 bxc6 11. Qf3 Bb7 12. Bf4 Bb4 13. Bd3 Qe7 14. Be5 Nd7
15. Bxg7 Rg8 16. Bd4 Qd6 17. O-O-O Qxd4 18. Bxh7 Ne5 19. Rxd4 Nxf3 20. gxf3 Rg7
21. Be4 f5 22. Bc2 Bxc3 23. bxc3 c5 24. Rd3 Ke7 25. Re1 Kf6 26. f4 Rh8 27. Rd6
Re7 28. Re5 Kf7 29. Rxc5 Rxh2 30. Rd2 Rh4 31. Rd4 Rh2 32. Ra5 Rxf2 33. Rxa7 Kf6
34. Ra4 Rg7 35. c5 Rgg2 36. Bb3 Bf3 37. Bd1 Bxd1 38. Rxd1 Rxa2 39. Rxa2 Rxa2 40.
Rd4 Ra5 41. Rc4 Ke7 42. Kd2 Kd7 43. Rd4+ Kc7 44. Kd3 Rxc5 45. Rc4 Rxc4 46. Kxc4
Kd6 47. Kd4 e5+ 48. fxe5+ Ke6 49. c4 f4 50. c5 f3 51. Ke3 Kxe5 52. Kxf3 Kd5 53.
c6 Kxc6 1/2-1/2

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.21"]
[Round "9.2"]
[White "Piorun, Kacper"]
[Black "Abasov, Nijat"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2611"]
[BlackElo "2670"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]
[WhiteFideId "1130420"]
[BlackFideId "13402960"]
[EventDate "2020.02.12"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bc5 7. Nd6+ Ke7 8.
Bf4 e5 9. Nf5+ Kf8 10. Bg5 d6 11. Bd3 h6 12. Bxf6 Qxf6 13. Nd5 Qd8 14. c3 g6 15.
Nfe3 a6 16. h4 h5 17. Qe2 Be6 18. g3 Kg7 19. O-O-O b5 20. a3 Ne7 21. Bc2 a5 22.
b4 axb4 23. axb4 Bxe3+ 24. Qxe3 Bxd5 25. exd5 Ra2 26. Bb3 Nf5 27. Qe1 Ra7 28.
Kb2 Qb6 29. Qd2 e4 30. Ra1 Re7 31. Rhe1 Rhe8 32. Bc2 e3 33. fxe3 Nxe3 34. Bd3
Re5 35. Re2 Rxd5 36. Kb3 Nc4 37. Qc2 Rxe2 38. Qxe2 Re5 39. Qg2 d5 40. Rd1 Qe6 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.21"]
[Round "9.3"]
[White "Van Foreest, Jorden"]
[Black "Stefansson, Hannes"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2667"]
[BlackElo "2529"]
[ECO "C50"]
[Opening "Giuoco Pianissimo"]
[WhiteFideId "1039784"]
[BlackFideId "2300087"]
[EventDate "2020.02.12"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. a4 O-O 6. a5 a6 7. O-O h6 8. c3 d6
9. h3 Ba7 10. Be3 Ne7 11. Bxa7 Rxa7 12. Re1 Ng6 13. Nbd2 Re8 14. d4 Be6 15. Bf1
Qc8 16. b4 exd4 17. cxd4 d5 18. e5 Nd7 19. Qc2 Ra8 20. Rac1 c6 21. Nb3 Re7 22.
g3 Qe8 23. Nfd2 f5 24. Bd3 Qf7 25. Nf1 Ree8 26. Ne3 Ne7 27. f4 g6 28. Re2 Kh8
29. Rf1 Rg8 30. Rg2 Rg7 31. Kh2 Rf8 32. Qb1 Qg8 33. Qe1 Rgf7 34. Nc1 Qh7 35. Ne2
Qg8 36. g4 Qh7 37. Qh4 Rg8 38. Rfg1 Nf8 39. Bb1 Bc8 40. gxf5 Nxf5 41. Nxf5 Bxf5
42. Bxf5 Rxf5 43. Ng3 1-0

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.21"]
[Round "9.4"]
[White "Cernousek, Lukas"]
[Black "Nguyen, Thai Dai Van"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2442"]
[BlackElo "2560"]
[ECO "B56"]
[Opening "Sicilian"]
[WhiteFideId "311707"]
[BlackFideId "358878"]
[EventDate "2020.02.12"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f3 e5 7. Nb3 Be6 8. Be3
Be7 9. Qd2 O-O 10. O-O-O a5 11. Bb5 Qb8 12. Kb1 Na7 13. Be2 Nc6 14. Bb5 Rc8 15.
Nd5 Bxd5 16. exd5 a4 17. Na1 a3 18. b3 Nd4 19. Bxd4 exd4 20. Qxd4 Rc5 21. c4
Nxd5 22. cxd5 Rxb5 23. Rc1 Bf6 24. Qd3 Rc5 25. b4 Rxc1+ 26. Rxc1 Qe8 27. f4 Bb2
28. Rd1 Rc8 29. Nc2 g6 30. Nxa3 Bxa3 31. Qxa3 Qe4+ 32. Ka1 Qxg2 33. Rc1 Re8 34.
Qb2 Qxd5 35. Qf6 Qd2 0-1

[Event "2nd Prague Challengers"]
[Site "Prague CZE"]
[Date "2020.02.21"]
[Round "9.5"]
[White "Kriebel, Tadeas"]
[Black "Bartel, Mateusz"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2524"]
[BlackElo "2639"]
[ECO "A40"]
[Opening "Queen's pawn"]
[Variation "Keres defence"]
[WhiteFideId "330027"]
[BlackFideId "1112635"]
[EventDate "2020.02.12"]

1. d4 e6 2. c4 b6 3. Nc3 Bb4 4. e3 Bb7 5. Ne2 f5 6. a3 Be7 7. Ng3 Nf6 8. d5 O-O
9. Be2 a5 10. Bf3 Qc8 11. O-O Na6 12. dxe6 dxe6 13. e4 fxe4 14. Ngxe4 Nc5 15.
Nxc5 Bxc5 16. Bxb7 Qxb7 17. Qe2 e5 18. Bg5 Bd4 19. Bxf6 Rxf6 20. Kh1 Raf8 21.
Ne4 Rf4 22. Rae1 a4 23. f3 Qc6 24. g3 R4f7 25. h4 h6 26. Kg2 Rb8 27. Rb1 b5 28.
b4 Qxc4 29. Qxc4 bxc4 30. Rbc1 Bb2 31. Rxc4 Bxa3 32. Rb1 Rd7 33. b5 Rd4 34. Rxc7
Rb4 35. Rxb4 Bxb4 36. Nc3 Ba5 37. Rc4 a3 38. Na2 Bd8 39. Ra4 Be7 40. Nc3 Kf7 41.
Kh3 Rc8 42. Nd5 Bc5 43. b6 Rb8 44. Ra5 Bf8 45. Ra6 Bc5 46. Ra5 Bd6 47. Ne3 Rc8
48. b7 Rc3 49. Ra6 Bb8 50. Ra8 Rxe3 1/2-1/2

