[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.23"]
[Round "9"]
[White "Sviridov, Leon"]
[Black "Dashdorzh, Ariunaa"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1370"]
[BlackElo "1549"]
[PlyCount "86"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. a3 Bb7 7. Bd3 Qc7 8. Be3 Nf6 9. f3 d6 10. 0-0 Nbd7 11. Qe2 Be7 12. Qf2 0-0 13. Qg3 Kh8 14. Nde2 Ne5 15. Nf4 Nc4 16. Bxc4 Qxc4 17. Qh3 a5 18. Nce2 Qxc2 19. Rfc1 Qb3 20. Bf2 Rac8 21. Rcb1 e5 22. Nh5 Nxh5 23. Qxh5 Rc2 24. Ng3 Rxb2 25. Rxb2 Qxb2 26. Rf1 Qxa3 27. Nf5 g6 28. Qh6 gxf5 29. Bh4 f6 30. exf5 d5 31. g4 d4 32. g5 fxg5 33. Bxg5 Bxg5 34. Qxg5 Rg8 35. Qxg8+ Kxg8 36. Rf2 Qe3 37. Kg2 Qxf2+ 38. Kxf2 b4 39. Ke2 b3 40. Kd2 a4 41. Kc1 a3 42. Kb1 d3 43. Kc1 a2 0-1

[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.22"]
[Round "8"]
[White "Gubin, Ivan"]
[Black "Sviridov, Leon"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1000"]
[BlackElo "1370"]
[PlyCount "80"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. Be2 Nge7 6. c3 Nf5 7. Bf4 cxd4 8. Nxd4 Nfxd4 9. cxd4 Qb6 10. Be3 Qxb2 11. Nd2 Nxd4 12. Bxd4 Qxd4 13. Nf3 Qxd1+ 14. Rxd1 a6 15. 0-0 Be7 16. Nd4 0-0 17. f4 Bd7 18. Rf3 Bc5 19. Kh1 Bxd4 20. Rxd4 Rac8 21. Rd2 Rc1+ 22. Rf1 Rfc8 23. h3 Rxf1+ 24. Bxf1 Rc1 25. Kg1 Bb5 26. Rf2 Rxf1+ 27. Rxf1 Bxf1 28. Kxf1 Kf8 29. Ke2 Ke7 30. Kd3 Kd7 31. g4 g6 32. h4 h5 33. gxh5 gxh5 34. Ke3 Kc6 35. Kd3 Kc5 36. Ke3 Kb4 37. Kd4 Ka3 38. Kc5 Kxa2 39. f5 b5 40. fxe6 fxe6 0-1

[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.21"]
[Round "7"]
[White "Kalashnikova, Elena"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "1779"]
[BlackElo "1370"]
[PlyCount "91"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Bxc3+ 5. bxc3 c5 6. Nf3 Ne7 7. Be2 Nbc6 8. h4 Bd7 9. h5 h6 10. a3 Qc7 11. g4 a6 12. Be3 c4 13. Qd2 Qa5 14. Nh4 Nc8 15. 0-0 Qd8 16. g5 hxg5 17. Bxg5 N8e7 18. Kh1 Qc7 19. Rg1 0-0-0 20. Bxe7 Nxe7 21. Rxg7 Nf5 22. Nxf5 exf5 23. Rxf7 Qc6 24. Rf6 Be6 25. Rg1 Qd7 26. h6 Rh7 27. Rgg6 Bf7 28. e6 Bxe6 29. Rxe6 Rdh8 30. Qg5 Qf7 31. Ref6 Qe7 32. Qxf5+ Kb8 33. Qe5+ Qxe5 34. dxe5 Re7 35. f4 Ka7 36. Bf3 b5 37. Bxd5 Reh7 38. Rxa6+ Kb8 39. Ra8+ Kc7 40. Rxh8 Rxh8 41. Rg7+ Kb6 42. h7 Rd8 43. Be4 Rd1+ 44. Kg2 Rd2+ 45. Kg3 b4 46. axb4 1-0

[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.20"]
[Round "6"]
[White "Sviridov, Leon"]
[Black "Litvinov, Dmitri"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1370"]
[BlackElo "1667"]
[PlyCount "58"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. Be3 Nbd7 9. Qd2 Be7 10. f3 b5 11. a3 Nb6 12. Bxb6 Qxb6 13. g4 0-0 14. h4 Rac8 15. h5 Qc7 16. Bd1 h6 17. g5 hxg5 18. h6 g6 19. h7+ Kh8 20. Be2 Nh5 21. Bd3 Nf4 22. Nc1 Qb6 23. Bf1 g4 24. fxg4 Bxg4 25. N1e2 Bxe2 26. Nxe2 Ne6 27. 0-0-0 Bg5 28. Qxg5 Nxg5 29. Ng3 Qe3+ 0-1

[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.19"]
[Round "5"]
[White "Khurkhesova, Viktoriya"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "E74"]
[WhiteElo "1773"]
[BlackElo "1370"]
[PlyCount "67"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 Nbd7 7. Nf3 a6 8. Qd2 c5 9. d5 Rb8 10. a4 Ne8 11. 0-0 f6 12. Bf4 g5 13. Be3 h6 14. Ne1 Ne5 15. f4 Ng6 16. Nd3 Nc7 17. Bh5 Nh8 18. Rf3 Nf7 19. Raf1 Nh8 20. Rg3 Bd7 21. Nf2 Be8 22. fxg5 fxg5 23. Bxg5 Bxh5 24. Bxh6 Bg6 25. Bxg7 Kxg7 26. h4 Kh7 27. h5 Bxh5 28. Qg5 Bg6 29. Rh3+ Kg7 30. Qh6+ Kf7 31. Ng4+ Ke8 32. Rxf8+ Kd7 33. Rxd8+ Rxd8 34. Qg7 1-0

[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.18"]
[Round "4"]
[White "Shoshin, Kirill"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "1955"]
[BlackElo "1370"]
[PlyCount "73"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bxf6 Bxf6 10. Nd5 Nd7 11. Nxc7 Rb8 12. Nd5 b6 13. Bg4 Bg7 14. Ne7+ Kf8 15. Nc6 Bb7 16. Nxd8 Rxd8 17. Bxd7 Rxd7 18. f3 Bh6 19. Rd1 Rc7 20. b3 Ba6 21. a4 f5 22. Ne2 Bb7 23. Nc3 Bg5 24. Nd5 Rd7 25. Ke2 Kf7 26. Nxb6 Rxd1 27. Rxd1 axb6 28. Rd7+ Ke8 29. Rxb7 Bd8 30. Rxh7 fxe4 31. fxe4 Kf8 32. Rh8+ Ke7 33. Rxd8 Kxd8 34. h4 Ke7 35. g4 Kf6 36. b4 g5 37. h5 1-0

[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.17"]
[Round "3"]
[White "Sviridov, Leon"]
[Black "Kiseleva, Arina"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1370"]
[BlackElo "2067"]
[PlyCount "106"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Nc6 5. Be3 Nf6 6. Qd2 Bg4 7. Be2 Nd7 8. h3 Bxf3 9. Bxf3 0-0 10. Ne2 Re8 11. h4 e6 12. h5 Ne7 13. Bh6 Bh8 14. hxg6 hxg6 15. Qf4 Nc6 16. Bg5 Bf6 17. Qh4 Kf8 18. Nf4 e5 19. Nd5 Re6 20. Bxf6 Nxf6 21. Qg5 Ng8 22. Qg3 Nxd4 23. 0-0-0 c6 24. Ne3 Nxf3 25. gxf3 Qf6 26. Ng4 Qg5+ 27. Kb1 Ke7 28. Rh8 Rf8 29. Rdh1 Nf6 30. Rxf8 Kxf8 31. Rh8+ Kg7 32. Nxf6 Qxg3 33. Rg8+ Kxf6 34. fxg3 d5 35. Rb8 dxe4 36. fxe4 Rd6 37. Kc1 Rd7 38. c3 Kg5 39. Re8 f6 40. Rg8 b6 41. Kc2 c5 42. a3 c4 43. Rh8 Kg4 44. Rg8 g5 45. Rg6 Rd6 46. Rg7 Kxg3 47. Rxa7 g4 48. Rg7 Kf3 49. a4 g3 50. b4 cxb3+ 51. Kxb3 g2 52. a5 bxa5 53. c4 Kf2 0-1

[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.16"]
[Round "2"]
[White "Zvjaginsev, Vadim"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2643"]
[BlackElo "1370"]
[PlyCount "61"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 c5 4. exd5 exd5 5. Bb5+ Nc6 6. 0-0 a6 7. Re1+ Be7 8. Bxc6+ bxc6 9. Na4 Be6 10. b3 Nf6 11. Ba3 Nd7 12. d4 cxd4 13. Bxe7 Qxe7 14. Nxd4 Rc8 15. Nf5 Qf8 16. Qd4 Nf6 17. Nc5 Ne4 18. Nxe4 dxe4 19. Rxe4 Rd8 20. Nxg7+ Ke7 21. Qc5+ Kd7 22. Qa7+ Kc8 23. Qxa6+ Kc7 24. Rxe6 Qxg7 25. Qxc6+ Kb8 26. Qb5+ Kc7 27. Rc6+ Kd7 28. Rd1+ Ke7 29. Qe2+ Qe5 30. Qxe5+ Kf8 31. Rxd8# 1-0

[Event "St Petersburg Korchnoi Memorial op"]
[Site "St Petersburg"]
[Date "2018.08.15"]
[Round "1"]
[White "Sviridov, Leon"]
[Black "Ziegler, Michael"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "1370"]
[BlackElo "2117"]
[PlyCount "53"]
[EventDate "2018.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Ndb5 Qb8 7. Be3 a6 8. Nd4 Nf6 9. a3 Be7 10. f3 0-0 11. Be2 Qc7 12. Qd2 b5 13. 0-0 Bb7 14. Nb3 d6 15. Qe1 Rac8 16. Qg3 Kh8 17. Rac1 Na5 18. Nxa5 Qxa5 19. Rfd1 Rfd8 20. Rd2 Rxc3 21. bxc3 Qxc3 22. Rd3 Qb2 23. Rb3 Qa2 24. Qe1 Nd7 25. e5 dxe5 26. Bd3 Nc5 27. Ra1 1-0

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.28"]
[Round "8"]
[White "Koltsova, Alisa"]
[Black "Sviridov, Leon"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "1378"]
[BlackElo "1427"]
[PlyCount "81"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 e6 6. Bf4 Bd6 7. Bxd6 Qxd6 8. e3 a6 9. Bd3 0-0 10. 0-0 Nc6 11. a3 b5 12. b4 Bb7 13. Qb3 Rac8 14. Rac1 e5 15. dxe5 Nxe5 16. Nxe5 Qxe5 17. Be2 Ne4 18. Nxe4 dxe4 19. Bg4 Bd5 20. Qb1 f5 21. Be2 Bc4 22. Bxc4+ Rxc4 23. Rxc4 bxc4 24. Qc2 Rc8 25. Rc1 c3 26. Qb3+ Kh8 27. Qc2 Qd5 28. Kf1 Qd3+ 29. Ke1 h6 30. Qe2 Qd5 31. Qc2 Qc4 32. Rd1 a5 33. bxa5 Rb8 34. Rd4 Qc5 35. Rb4 Rd8 36. Rd4 Rb8 37. Rb4 Rd8 38. Rd4 Rb8 39. Rb4 Rd8 40. Rd4 Rb8 41. Rb4 1/2-1/2

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.27"]
[Round "7"]
[White "Sviridov, Leon"]
[Black "Shceglov, Mikhail"]
[Result "0-1"]
[ECO "B66"]
[WhiteElo "1427"]
[BlackElo "1503"]
[PlyCount "24"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. f4 a6 9. 0-0-0 Qc7 10. Bxf6 gxf6 11. f5 Bd7 12. Be2 0-0-0 0-1

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.26"]
[Round "6"]
[White "Aslanov, Umid Fuad"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1520"]
[BlackElo "1427"]
[PlyCount "71"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nc6 5. Nf3 Be7 6. c3 Nf6 7. Bd3 b6 8. 0-0 Bb7 9. Qc2 Nxe4 10. Bxe4 h6 11. Be3 Na5 12. Bxb7 Nxb7 13. Ne5 0-0 14. Qe2 Bg5 15. f4 Be7 16. f5 exf5 17. Rxf5 Nd6 18. Rf3 Bg5 19. Bxg5 Qxg5 20. Rg3 Qe7 21. Qg4 f5 22. Qh5 Ne4 23. Rg6 Rf6 24. Qxh6 Rxg6 25. Qxg6 Rf8 26. Rf1 Qh4 27. Qe6+ Kh7 28. Ng6 Qg5 29. Nxf8+ Kh8 30. Ng6+ Kh7 31. Nf4 Nd2 32. Rf2 Ne4 33. Rf3 Nd2 34. Rh3+ Qh6 35. Qxf5+ Kg8 36. Rxh6 1-0

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.25"]
[Round "5"]
[White "Sviridov, Leon"]
[Black "Surovtseva, Alisa"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1427"]
[BlackElo "1693"]
[PlyCount "112"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4+ 5. c3 Bc5 6. Be3 Bb6 7. Nf5 Bxe3 8. Nxe3 d6 9. Bb5 Nge7 10. 0-0 0-0 11. f4 f5 12. exf5 Nxf5 13. Nxf5 Rxf5 14. Bc4+ Kh8 15. Bd3 Rf6 16. Re1 Bf5 17. Bxf5 Rxf5 18. Qg4 Qf6 19. Rf1 Rf8 20. g3 g5 21. Nd2 gxf4 22. Ne4 Qg6 23. Qxg6 hxg6 24. g4 Re5 25. Nf2 g5 26. Rae1 Rfe8 27. Rd1 Kg7 28. Nd3 Re2 29. Rf2 Kf6 30. Kf1 R2e3 31. h4 Rh3 32. hxg5+ Kxg5 33. Kg2 Rg3+ 34. Kf1 Rxg4 35. Rh2 Rh4 36. Rg2+ Kf5 37. Kf2 Ne5 38. Nxe5 dxe5 39. Rd7 Ke4 40. Rf7 Rd8 41. Ke2 Rh3 42. Rf2 f3+ 43. Ke1 Rh1+ 44. Rf1 Rxf1+ 45. Kxf1 Ke3 46. Ke1 e4 47. Rf6 Rh8 48. Kd1 Rh2 49. Rf7 f2 50. Kc1 Ke2 51. Kc2 f1Q 52. Rxf1 Kxf1+ 53. Kd1 e3 54. Kc1 e2 55. Kd2 Rh3 56. Kc2 e1Q 0-1

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.24"]
[Round "4"]
[White "Pitkanen, Juhani"]
[Black "Sviridov, Leon"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1657"]
[BlackElo "1427"]
[PlyCount "80"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 Bg7 4. e4 d6 5. Qd2 c6 6. Bh6 Bxh6 7. Qxh6 b5 8. a3 Qa5 9. b4 Qb6 10. Qd2 Nbd7 11. Nf3 0-0 12. Be2 a5 13. 0-0 Bb7 14. e5 Ne8 15. exd6 Nxd6 16. Bd3 Nf6 17. Rfe1 e6 18. Qf4 Nde8 19. Ne4 Nxe4 20. Bxe4 Kg7 21. Qe5+ Kg8 22. c3 Qd8 23. Nd2 Qd6 24. Qxd6 Nxd6 25. Bf3 axb4 26. axb4 Rxa1 27. Rxa1 Ra8 28. Rxa8+ Bxa8 29. Kf1 Kf8 30. Ke2 Ke7 31. Kd3 Kd7 32. Ne4 Nxe4 33. Bxe4 f5 34. Bf3 Kd6 35. h3 e5 36. dxe5+ Kxe5 37. g3 Bb7 38. Bg2 Kd6 39. Kd4 Bc8 40. h4 Be6 1/2-1/2

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.23"]
[Round "3"]
[White "Sviridov, Leon"]
[Black "Mustafayev, Nihad"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1427"]
[BlackElo "1788"]
[PlyCount "118"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 0-0 11. 0-0 d4 12. Ne2 Bg4 13. Bg5 Qd6 14. Qd2 Rad8 15. Rfe1 Rfe8 16. h3 Bh5 17. Ng3 Bg6 18. Bxg6 hxg6 19. Bxf6 Qxf6 20. Ne4 Qf5 21. Ng3 Qd5 22. Rxe8+ Rxe8 23. Re1 Rd8 24. Ne4 Ne5 25. Qg5 Re8 26. f4 f6 27. Qg3 Ng4 28. hxg4 Rxe4 29. Rxe4 Qxe4 30. f5 gxf5 31. gxf5 Qxf5 32. Qb8+ Kh7 33. Qh2+ Kg6 34. Qg3+ Kh7 35. Qh2+ Kg6 36. Qg3+ Qg5 37. Qd3+ Kh5 38. Qxd4 Qc1+ 39. Kh2 Qxc2 40. Kh3 Qb3+ 41. g3 Qe6+ 42. g4+ Kg6 43. Kh4 Qe1+ 44. Kh3 Kg5 45. Qd5+ Kf4 46. Qf5+ Ke3 47. Qe6+ Kf2 48. Qf5+ Kg1 49. Qc2 Qe3+ 50. Kh4 Qf2+ 51. Qxf2+ Kxf2 52. Kh5 Kg3 53. b4 g5 54. Kg6 Kxg4 55. Kxf6 Kf4 56. Ke6 g4 57. Kd6 g3 58. Kc7 g2 59. Kxb7 g1Q 0-1

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.22"]
[Round "2"]
[White "Dushin, Nikolay"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1956"]
[BlackElo "1427"]
[PlyCount "69"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Qd2 c6 7. Nge2 Nbd7 8. Bh6 a6 9. h4 Qb6 10. 0-0-0 Qa7 11. g4 b5 12. Ng3 Nb6 13. h5 b4 14. Nb1 Nxg4 15. Bxg7 Kxg7 16. hxg6 fxg6 17. fxg4 Rf7 18. Be2 Be6 19. Rdf1 Raf8 20. Qxb4 Qc7 21. Rxf7+ Rxf7 22. Rf1 Rxf1+ 23. Nxf1 d5 24. e5 Nc4 25. b3 a5 26. Qc3 Nb6 27. Qxa5 Qd8 28. Qe1 Qf8 29. Qg3 Qf7 30. a4 Qf8 31. a5 Na8 32. b4 Qb8 33. Qc3 Qb7 34. Ne3 Qa7 35. Nd2 1-0

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.21"]
[Round "1"]
[White "Sviridov, Leon"]
[Black "Komov, Roman"]
[Result "0-1"]
[ECO "E40"]
[WhiteElo "1427"]
[BlackElo "2168"]
[PlyCount "64"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 Bxc3+ 6. bxc3 d6 7. Nf3 Nbd7 8. 0-0 b6 9. a4 a5 10. Re1 Bb7 11. e4 e5 12. d5 Nc5 13. Ba3 Qe7 14. Bxc5 dxc5 15. Rb1 Ne8 16. Nd2 Bc8 17. Rb2 Nd6 18. Nb1 f5 19. f3 fxe4 20. fxe4 Bd7 21. Na3 Qg5 22. Nb5 Bxb5 23. cxb5 c4 24. Bb1 Rf4 25. Qd2 Raf8 26. g3 Qg6 27. Qe2 Rf3 28. Qd2 Rxg3+ 29. hxg3 Qxg3+ 30. Kh1 Rf4 31. Qxf4 Qxe1+ 32. Kg2 exf4 0-1

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.24"]
[Round "9"]
[White "Dudakov, Andrei"]
[Black "Sviridov, Leon"]
[Result "0-1"]
[ECO "D53"]
[BlackElo "1450"]
[PlyCount "90"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Be7 6. e3 Nbd7 7. Be2 dxc4 8. Bxc4 b5 9. Bb3 0-0 10. 0-0 a6 11. Rc1 c5 12. Ne4 c4 13. Bc2 Bb7 14. Nxf6+ Bxf6 15. Bf4 Be7 16. Ne5 Nxe5 17. Bxe5 f5 18. Qd2 Qd5 19. f3 Bd6 20. e4 Qc6 21. d5 Qb6+ 22. Bd4 Bc5 23. Rcd1 exd5 24. exf5 Rfe8 25. b4 Bxd4+ 26. Qxd4 Qxd4+ 27. Rxd4 a5 28. Rg4 axb4 29. f6 g6 30. h4 Rxa2 31. h5 b3 32. hxg6 hxg6 33. Rxg6+ Kf7 34. Rg7+ Kxf6 35. Rxb7 Rxc2 36. Rb1 b2 37. Rb6+ Kf7 38. Rb7+ Re7 39. Rxe7+ Kxe7 40. Kh2 c3 41. Kh3 Rc1 42. Rxc1 bxc1Q 43. g4 Qh6+ 44. Kg3 c2 45. Kf2 c1Q 0-1

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.23"]
[Round "8"]
[White "Sviridov, Leon"]
[Black "Romanov, Aleksandr"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1450"]
[BlackElo "1553"]
[PlyCount "22"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. h3 Nge7 7. Nf3 0-0 8. 0-0 h6 9. Nbd2 Bf5 10. Qc2 Qd7 11. Bxf5 Qxf5 0-1

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.22"]
[Round "7"]
[White "Novitckii, Andrei"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "1647"]
[BlackElo "1450"]
[PlyCount "120"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. Bd3 Bg7 4. Nf3 d5 5. Nbd2 0-0 6. b3 c6 7. Bb2 Nbd7 8. c4 e6 9. 0-0 Re8 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 c5 13. Rb1 Qe7 14. d5 Bxb2 15. Rxb2 exd5 16. Bxd5 Nf6 17. Re1 Qd8 18. Rxe8+ Qxe8 19. Re2 Qd7 20. Ne5 Qc7 21. Bxf7+ Kg7 22. Bd5 Bf5 23. Nf3 Re8 24. Rxe8 Nxe8 25. Qe2 Nf6 26. Be6 Bxe6 27. Qxe6 Qd8 28. g3 Qd7 29. Qxd7+ Nxd7 30. Kf1 Kf6 31. Ke2 h6 32. Ke3 Ke6 33. h3 Nf6 34. Nd2 Ke5 35. f4+ Ke6 36. Ne4 Nd7 37. g4 a6 38. a4 b6 39. Kf3 Nf8 40. a5 bxa5 41. Nxc5+ Kd6 42. Nd3 Nd7 43. Ke4 Ke6 44. f5+ gxf5+ 45. gxf5+ Kf6 46. h4 Nb6 47. c5 Nd7 48. c6 Nb6 49. Nc5 h5 50. Nd7+ Nxd7 51. cxd7 Ke7 52. Ke5 Kxd7 53. Kf6 Kd6 54. Kg7 Kc5 55. f6 Kb4 56. f7 Kxb3 57. f8Q a4 58. Qb8+ Kc3 59. Qb6 a3 60. Qxa6 Kb3 1-0

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.21"]
[Round "6"]
[White "Davidov, Alexey"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "1732"]
[BlackElo "1450"]
[PlyCount "71"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 c5 5. Nf3 d6 6. 0-0 0-0 7. d4 Nbd7 8. e3 Rb8 9. b3 b6 10. Bb2 cxd4 11. Nxd4 Bb7 12. e4 Nc5 13. Re1 Qd7 14. Nd5 Bxd5 15. exd5 Rbc8 16. Re2 Rfe8 17. Qd2 e5 18. dxe6 fxe6 19. Rae1 e5 20. Nc2 Red8 21. Nb4 a5 22. Nd5 Nxd5 23. Bxd5+ Kh8 24. f4 Qc7 25. fxe5 dxe5 26. Bxe5 Bxe5 27. Rxe5 Qg7 28. Re7 Qf6 29. Qe3 Rf8 30. Qh6 Qf2+ 31. Kh1 Rf7 32. Bxf7 Ne4 33. R7xe4 Qxf7 34. Rf4 Qb7+ 35. Kg1 Qb8 36. Re7 1-0

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.20"]
[Round "5"]
[White "Sviridov, Leon"]
[Black "Fedorov, Ivan"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "1450"]
[BlackElo "1806"]
[PlyCount "48"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nc6 2. c4 e5 3. d5 Nce7 4. e4 f5 5. Bd3 f4 6. Bd2 Ng6 7. Nc3 a5 8. a4 Bc5 9. Qe2 d6 10. Nf3 Nh6 11. g3 0-0 12. gxf4 Nxf4 13. Bxf4 Rxf4 14. h3 Qf6 15. Ng1 Rxf2 16. Qh5 Bd7 17. 0-0-0 Be8 18. Qe2 Rxe2 19. Bxe2 Bd4 20. Nf3 Bxc3 21. bxc3 Bxa4 22. Rdf1 Qf4+ 23. Nd2 Qe3 24. Rf3 Qxe2 0-1

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.19"]
[Round "4"]
[White "Smirnov, Dmitrii"]
[Black "Sviridov, Leon"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1668"]
[BlackElo "1450"]
[PlyCount "90"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 g6 5. c4 Nb6 6. Bd3 Bg7 7. Be3 Bg4 8. Be4 c6 9. h3 Bxf3 10. Bxf3 Nxc4 11. b3 Nxe3 12. fxe3 e5 13. Nd2 Qh4+ 14. Kf1 0-0 15. dxe5 Bxe5 16. Rc1 Rd8 17. Qe2 Nd7 18. Rc4 Qf6 19. Ne4 Qe7 20. Kf2 Nb6 21. Rc2 f5 22. Nd2 Qh4+ 23. Kf1 Rd7 24. Nc4 Nxc4 25. Rxc4 Qg3 26. h4 Bc7 27. Rd4 Rxd4 28. exd4 Qd6 29. Qc4+ Kg7 30. Kf2 Re8 31. Rh3 Bb6 32. Kf1 Bxd4 33. h5 Qe5 34. h6+ Kf6 35. Be2 Be3 36. Qh4+ Kf7 37. Qc4+ Re6 38. Qd3 Qa1+ 39. Bd1 Qd4 40. Qc2 Rd6 41. Ke2 Bf4 42. Rf3 Re6+ 43. Kf1 Bh2 44. Rf2 Bg3 45. Re2 Rd6 0-1

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.18"]
[Round "3"]
[White "Sviridov, Leon"]
[Black "Kozyakov, Andrey"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "1450"]
[BlackElo "1729"]
[PlyCount "100"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. Bg5 Ne4 6. Nxe4 dxe4 7. Ng1 f6 8. Bf4 g5 9. Bxb8 Rxb8 10. a3 Bg7 11. e3 0-0 12. h4 g4 13. g3 e5 14. c5 exd4 15. Bc4+ Kh8 16. exd4 f5 17. Ne2 b5 18. Ba2 Rb7 19. h5 Re7 20. h6 Bf6 21. 0-0 Bg5 22. Kg2 Be6 23. Bxe6 Rxe6 24. Rh1 Rxh6 25. Rxh6 Bxh6 26. Qh1 Qf6 27. Qh2 Bg5 28. Rh1 h6 29. Nf4 Bxf4 30. gxf4 Kg7 31. Qh5 Qg6 32. Qxg6+ Kxg6 33. Kg3 a5 34. d5 cxd5 35. Rd1 Rc8 36. Rxd5 Rc6 37. Kh4 b4 38. a4 b3 39. Kg3 Re6 40. Kg2 h5 41. Kg3 e3 42. fxe3 Rxe3+ 43. Kf2 Rf3+ 44. Kg2 Rxf4 45. c6 Rc4 46. Rd6+ Kg5 47. Kg3 h4+ 48. Kg2 h3+ 49. Kh1 Rc1+ 50. Rd1 Rxd1+ 0-1

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.17"]
[Round "2"]
[White "Seregina, Maria"]
[Black "Sviridov, Leon"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1875"]
[BlackElo "1450"]
[PlyCount "95"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. g3 Bf5 4. Bg2 Qd7 5. Ne5 Qc8 6. c4 Bh3 7. Bxd5 Nxd5 8. cxd5 Bg2 9. Rg1 Bxd5 10. Qa4+ c6 11. e4 Be6 12. f5 Bd7 13. Qb3 e6 14. Rf1 f6 15. Nxd7 Nxd7 16. Qxe6+ Be7 17. d4 Qc7 18. Bf4 Qb6 19. Bd6 Qd8 20. Nc3 Rf8 21. Bxe7 Qxe7 22. Qxe7+ Kxe7 23. 0-0-0 b5 24. d5 Rac8 25. Kb1 cxd5 26. exd5 a6 27. d6+ Kf7 28. Nd5 Rfd8 29. Nc7 Ne5 30. b3 Kg8 31. Rf4 h6 32. Nxa6 Rc6 33. Nc7 Rcxd6 34. Rxd6 Rxd6 35. Nxb5 Rd2 36. Rd4 Rxh2 37. b4 Rg2 38. Nd6 Rxg3 39. b5 h5 40. b6 Rg4 41. b7 Nc6 42. Ne4 Nxd4 43. b8Q+ Kh7 44. Qb7 Kg8 45. Qd5+ Kh7 46. Qxd4 h4 47. Nxf6+ gxf6 48. Qxg4 1-0

[Event "St Petersburg Summer op"]
[Site "St Petersburg"]
[Date "2017.08.16"]
[Round "1"]
[White "Sviridov, Leon"]
[Black "Shidlovskiy, Artemiy"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "1450"]
[BlackElo "2088"]
[PlyCount "58"]
[EventDate "2017.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 e6 6. d3 Nge7 7. 0-0 0-0 8. Bg5 h6 9. Bd2 f5 10. f4 Nd4 11. e5 d6 12. exd6 Qxd6 13. Qe1 Nxc2 14. Qc1 Nxa1 15. Qxa1 Bd7 16. Bxb7 Rab8 17. Bg2 Bc6 18. Bxc6 Nxc6 19. b3 Qxd3 20. Qe1 Rbd8 21. Bc1 Nd4 22. Ba3 Nc2 23. Qc1 Nxa3 24. Qxa3 Bxc3 25. Nxc3 Qxc3 26. Rc1 Qe3+ 27. Kh1 Qf3+ 28. Kg1 Rd2 29. Rc2 Qd1# 0-1

