[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.13"]
[Round "9"]
[White "Gut, Raphael"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "E51"]
[WhiteElo "2022"]
[BlackElo "2562"]
[PlyCount "120"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Challenger III"]
[BlackTeam "Meister"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Bg4 9. h3 Bh5 10. Ne2 Bd6 11. Ne5 Nbd7 12. f4 Ne4 13. Bxe4 dxe4 14. Nxd7 Bxe2 15. Qxe2 Qxd7 16. 0-0 c5 17. Bc3 Rac8 18. Rac1 c4 19. f5 f6 20. Qg4 Qb7 21. Rfd1 Qd5 22. Rc2 Rf7 23. Rdc1 b5 24. a3 Bc7 25. h4 a5 26. h5 Bd8 27. Be1 Kh8 28. Qf4 Bc7 29. Qg4 Bb6 30. Qf4 Rb7 31. Qf1 Rbc7 32. Qf4 Rc6 33. g3 Kg8 34. Kg2 R8c7 35. Qf1 Kf8 36. Bd2 Ke8 37. Qf4 Kd8 38. Kh2 Kc8 39. Kg2 Kb7 40. Qf1 g6 41. hxg6 hxg6 42. fxg6 f5 43. b3 Rxg6 44. bxc4 bxc4 45. Rxc4 Rh7 46. Be1 Rgh6 47. Qf4 Rh2+ 48. Kf1 Qb5 49. Bf2 Rh1+ 50. Bg1 Rc7 51. Qe5 Qxe5 52. dxe5 Rxc4 53. Rxc4 Bxe3 54. e6 Rxg1+ 55. Ke2 Bg5 56. Rd4 Rg2+ 57. Kd1 Rxg3 58. e7 Bxe7 59. Rd7+ Kc6 60. Rxe7 Rxa3 0-1

[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.12"]
[Round "7"]
[White "Jetzl, Julian"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "E46"]
[WhiteElo "1965"]
[BlackElo "2562"]
[PlyCount "102"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Challenger II"]
[BlackTeam "Meister"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nge2 d5 6. a3 Be7 7. cxd5 exd5 8. Nf4 a5 9. Bd3 c6 10. 0-0 Na6 11. Bd2 Nc7 12. f3 Nfe8 13. Qc2 g6 14. Nce2 Ng7 15. Be1 Nce6 16. Bf2 Nxf4 17. Nxf4 Ne6 18. Nxe6 Bxe6 19. e4 Qd7 20. Be3 f5 21. e5 f4 22. Bd2 Bd8 23. Bxg6 Bb6 24. Bc3 c5 25. dxc5 Bxc5+ 26. Kh1 Be3 27. Bd3 d4 28. Bd2 Rac8 29. Qd1 Rc5 30. b4 Rxe5 31. bxa5 Kh8 32. Rb1 Qg7 33. Bxe3 Rg8 34. Rf2 dxe3 35. Rfb2 Rd5 36. Qe2 Rgd8 37. Rxb7 Qc3 38. R7b3 Qd2 39. Bc4 Qd1+ 40. Qf1 Qxf1+ 41. Bxf1 Rd1 42. Rb8 Rxf1+ 43. Rxf1 Rxb8 44. g3 Ra8 45. gxf4 Rxa5 46. Re1 Rxa3 47. Kg2 Kg7 48. Kg3 Kf6 49. Rc1 Bd5 50. Rc7 Ra1 51. Rc2 Rg1+ 0-1

[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.12"]
[Round "8"]
[White "Ovsejevitsch, Sergei"]
[Black "Hartge, Gedeon"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2562"]
[BlackElo "2228"]
[PlyCount "105"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Meister"]
[BlackTeam "Challenger IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 0-0 8. Qc2 Nbd7 9. Nf3 Re8 10. 0-0 Nf8 11. h3 g6 12. Bh6 Bd6 13. Rae1 Ne6 14. e4 Bf4 15. Bxf4 Nxf4 16. exd5 Rxe1 17. Rxe1 N6xd5 18. Nxd5 Nxd5 19. Qd2 Be6 20. Ng5 Qf6 21. Nxe6 fxe6 22. Bc4 Rd8 23. Re4 Kg7 24. Qe2 Rd7 25. g3 Rf7 26. h4 Rd7 27. h5 Rf7 28. Rg4 Qf3 29. Qxf3 Rxf3 30. hxg6 hxg6 31. Re4 Kf7 32. Kg2 Rf5 33. a3 a5 34. Re1 Rh5 35. Be2 Rh8 36. Bg4 Nc7 37. Re5 b6 38. Bf3 Rd8 39. Bxc6 Rxd4 40. Re3 Rd6 41. Rf3+ Kg7 42. Be4 Na6 43. Rd3 Rxd3 44. Bxd3 Nc5 45. Bb5 Kf6 46. f4 Nb3 47. Bc4 Nd4 48. Kf2 Nf5 49. Bd3 g5 50. Kf3 gxf4 51. Kxf4 Nd6 52. Be2 e5+ 53. Ke3 1/2-1/2

[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.11"]
[Round "5"]
[White "Butenandt, Svenja"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "E52"]
[WhiteElo "2082"]
[BlackElo "2562"]
[PlyCount "66"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Challenger IV"]
[BlackTeam "Meister"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd2 b6 6. Bd3 Bb7 7. Nf3 d5 8. cxd5 exd5 9. 0-0 Bd6 10. Qb1 Nbd7 11. b4 a6 12. a4 Re8 13. Rc1 Ne4 14. Qb3 Nf8 15. Be1 Ng6 16. b5 a5 17. Bb1 Ng5 18. Nxg5 Qxg5 19. Qc2 Rad8 20. Ne2 Qh6 21. Ng3 Nh4 22. Qd1 g6 23. Bd2 Bc8 24. Rc3 f5 25. e4 f4 26. e5 Bb4 27. Rxc7 Bxd2 28. Qxd2 Nxg2 29. Qc1 Nh4 30. Ra3 Bg4 31. Nf1 Nf3+ 32. Kh1 Nxd4 33. Nd2 Rxe5 0-1

[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.11"]
[Round "6"]
[White "Ovsejevitsch, Sergei"]
[Black "Kasipour Azbari, Seyed Arvin"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2562"]
[BlackElo "2262"]
[PlyCount "61"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Meister"]
[BlackTeam "Challenger II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd2 Bf5 5. Qb3 Qb6 6. Nh4 Be4 7. f3 Qxb3 8. Nxb3 Bc2 9. Bd2 h6 10. Rc1 Bxb3 11. axb3 e6 12. g3 Bd6 13. cxd5 g5 14. Ng2 exd5 15. Ne3 Nbd7 16. Nf5 Bf8 17. Kf2 0-0-0 18. h4 Rg8 19. g4 Kb8 20. hxg5 hxg5 21. Kg2 c5 22. e3 b6 23. Ba6 Kc7 24. Be1 Kc6 25. b4 Nb8 26. b5+ Kd7 27. Bb7 Kc7 28. Ba8 c4 29. Bg3+ Kd7 30. e4 Ke6 31. exd5+ 1-0

[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.10"]
[Round "4"]
[White "Ovsejevitsch, Sergei"]
[Black "Gut, Lionel"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2562"]
[BlackElo "2098"]
[PlyCount "51"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Meister"]
[BlackTeam "Challenger III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "SUI"]

1. e4 c5 2. b3 d6 3. Bb2 Nf6 4. Nc3 Nc6 5. f4 g6 6. Bb5 Bd7 7. Nf3 Bg7 8. Qe2 Nh5 9. g3 Nd4 10. Bxd7+ Qxd7 11. Qd3 0-0 12. 0-0-0 Rfc8 13. Nxd4 cxd4 14. Ne2 e5 15. Kb1 a5 16. c3 dxc3 17. Nxc3 exf4 18. Nd5 Qd8 19. Bxg7 Nxg7 20. gxf4 Rc5 21. f5 Qh4 22. Rdf1 g5 23. Rhg1 Kf8 24. Rg3 Qxh2 25. Rh3 Qe5 26. f6 1-0

[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.09"]
[Round "3"]
[White "Mattenberger, Matthias"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "E42"]
[WhiteElo "2293"]
[BlackElo "2562"]
[PlyCount "38"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Challenger III"]
[BlackTeam "Meister"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 0-0 11. 0-0 h6 12. Ba2 Ne7 13. Qf3 Nfd5 14. Nxd5 Nxd5 15. Bxd5 Qxd5 16. Qxd5 exd5 17. Rac1 Bd7 18. Rfe1 Rfc8 19. f3 f6 1/2-1/2

[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.09"]
[Round "2"]
[White "Ovsejevitsch, Sergei"]
[Black "Jaggy, Matteo"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2562"]
[BlackElo "2175"]
[PlyCount "111"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Meister"]
[BlackTeam "Challenger IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Bg5 d5 4. cxd5 Qxd5 5. Nf3 Bg7 6. Nc3 Qa5 7. Bd2 c6 8. e4 Bg4 9. Bc4 0-0 10. e5 Nfd7 11. h3 Bxf3 12. Qxf3 Qb6 13. Qe4 c5 14. Nd5 Qd8 15. e6 f5 16. Nxe7+ Kh8 17. Qh4 Qe8 18. exd7 Nxd7 19. 0-0 Bf6 20. Nxg6+ Qxg6 21. Qf4 Bxd4 22. Bc3 Bxc3 23. bxc3 Nb6 24. Bb3 Rae8 25. Rae1 Qf6 26. Qf3 Re7 27. Rxe7 Qxe7 28. Rd1 Qe4 29. Qxe4 fxe4 30. a4 c4 31. Bc2 Rf5 32. Rd4 Rd5 33. Rxe4 Rd2 34. a5 Nd5 35. Ba4 Nxc3 36. Rxc4 Nxa4 37. Rxa4 Rb2 38. g4 Kg7 39. Kg2 Kg6 40. Kg3 b5 41. axb6 axb6 42. f4 h5 43. Rc4 hxg4 44. hxg4 b5 45. Rc6+ Kg7 46. f5 b4 47. g5 b3 48. Rc7+ Kf8 49. Rc8+ Kg7 50. f6+ Kg6 51. Rg8+ Kf7 52. Rg7+ Kf8 53. Rb7 Rb1 54. Kg2 Rb2+ 55. Kh3 Rb1 56. g6 1-0

[Event "Munich Youngsters IM Challenge"]
[Site "Munich"]
[Date "2023.10.08"]
[Round "1"]
[White "Loeffler, Stefan"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2332"]
[BlackElo "2562"]
[PlyCount "78"]
[EventDate "2023.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Challenger II"]
[BlackTeam "Meister"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Bg5 h6 5. Bxf6 Qxf6 6. g3 Bb4+ 7. Nc3 0-0 8. Bg2 dxc4 9. 0-0 Nc6 10. e3 Rd8 11. Qe2 e5 12. dxe5 Nxe5 13. Nxe5 Qxe5 14. Qxc4 a5 15. Rad1 Be6 16. Bd5 Bxc3 17. Bxe6 Qxe6 18. Qxe6 fxe6 19. bxc3 b5 20. Rxd8+ Rxd8 21. Rb1 c6 22. a4 Rb8 23. Kf1 Kf7 24. Ra1 Ra8 25. Rb1 Ke7 26. axb5 cxb5 27. Rxb5 a4 28. Ke2 a3 29. Rb1 Kd6 30. Kd3 Kc5 31. Kc2 a2 32. Ra1 Kc4 33. Kb2 e5 34. e4 g5 35. f3 Ra7 36. Rxa2 Rxa2+ 37. Kxa2 Kxc3 38. Ka3 h5 39. h3 h4 0-1

[Event "Bautzen op 2nd"]
[Site "Bautzen"]
[Date "2023.08.13"]
[Round "9"]
[White "Ovsejevitsch, Sergei"]
[Black "Langheinrich, Ferenc"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2555"]
[BlackElo "2366"]
[PlyCount "67"]
[EventDate "2023.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 Na6 7. 0-0 e5 8. Re1 Bg4 9. d5 Nc5 10. Bg5 a5 11. Nd2 Bxe2 12. Qxe2 Qe8 13. Nb3 Nfd7 14. Nxc5 Nxc5 15. Be3 Na6 16. g4 Qe7 17. Kh1 Nc5 18. Rg1 Nd7 19. Rg3 Bf6 20. Qd2 Bh4 21. Rh3 Bf6 22. Rg1 Rfc8 23. b3 Nf8 24. Ne2 Qd7 25. Bh6 Be7 26. f4 exf4 27. Qc3 f6 28. Nxf4 g5 29. Nh5 Qe8 30. Bxf8 Qxf8 31. Rf1 Re8 32. Rhf3 Bd8 33. Rxf6 Qe7 34. Re6 1-0

[Event "Bautzen op 2nd"]
[Site "Bautzen"]
[Date "2023.08.12"]
[Round "8"]
[White "Herbrig, Alexander"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2222"]
[BlackElo "2555"]
[PlyCount "37"]
[EventDate "2023.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 a5 6. Bg2 Ba6 7. Bxb4 axb4 8. Ne5 Ra7 9. Qa4 c5 10. a3 cxd4 11. axb4 Rc7 12. b5 Bb7 13. Bxb7 Rxb7 14. Qd1 d6 15. Nc6 Nxc6 16. bxc6 Rc7 17. Qxd4 Rxc6 18. 0-0 0-0 19. e4 1/2-1/2

[Event "Bautzen op 2nd"]
[Site "Bautzen"]
[Date "2023.08.11"]
[Round "7"]
[White "Ovsejevitsch, Sergei"]
[Black "Lortkipanidze, Nodar"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2555"]
[BlackElo "2382"]
[PlyCount "111"]
[EventDate "2023.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Qb3 e6 6. Qa3 a5 7. Be2 c6 8. d3 Na6 9. 0-0 Rb8 10. cxd5 exd5 11. e4 Nb4 12. Bf4 Ra8 13. Qb3 0-0 14. a3 dxe4 15. dxe4 Be6 16. Qd1 Qxd1 17. Rfxd1 Bb3 18. Rd2 Rfe8 19. Nd4 Nxe4 20. Nxe4 Bxd4 21. Rxd4 Nc2 22. Rad1 Nxd4 23. Rxd4 Kg7 24. Be3 Bd5 25. Nc3 Be6 26. g4 f5 27. Na4 Rad8 28. Rxd8 Rxd8 29. Nc5 Bc8 30. gxf5 gxf5 31. f3 Rd5 32. Nd3 Rd6 33. Kf2 a4 34. Nf4 b5 35. Bc5 Rd8 36. h4 Kf7 37. Bb4 Kf6 38. Ba5 Rd6 39. Bc3+ Kf7 40. Nd3 Ke6 41. Ke3 Rd8 42. Ba5 Rg8 43. Kd4 Kd6 44. Bb4+ Kc7 45. Ba5+ Kd6 46. Bb4+ Kc7 47. h5 Rd8+ 48. Ke3 Re8+ 49. Kf2 Be6 50. Nf4 Bd7 51. Bc5 Re5 52. Nd3 Re8 53. f4 Be6 54. Ne5 Rd8 55. Ke3 Rd5 56. Be7 1-0

[Event "Bautzen op 2nd"]
[Site "Bautzen"]
[Date "2023.08.09"]
[Round "3"]
[White "Ovsejevitsch, Sergei"]
[Black "Schmitz, Thorsten"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2555"]
[BlackElo "2258"]
[PlyCount "67"]
[EventDate "2023.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bg7 5. e4 0-0 6. Be2 e5 7. 0-0 exd4 8. Nxd4 Re8 9. f3 c6 10. Kh1 Nbd7 11. Bg5 h6 12. Bh4 Nc5 13. Nb3 Qe7 14. Nxc5 dxc5 15. f4 g5 16. fxg5 Nxe4 17. Bh5 Nxc3 18. bxc3 Be6 19. Bxf7+ Bxf7 20. g6 Qxh4 21. gxf7+ Kh8 22. fxe8Q+ Rxe8 23. Qd7 Rd8 24. Qc7 Re8 25. Qd7 Rd8 26. Qe6 Bxc3 27. Rad1 Rg8 28. Rd7 b5 29. g3 Qg5 30. cxb5 cxb5 31. Rd5 Qg6 32. Qxg6 Rxg6 33. Rxc5 b4 34. Rf7 1-0

[Event "AUT-chT 2223"]
[Site "Austria"]
[Date "2023.04.15"]
[Round "11.2"]
[White "Kaphle, Sebastian"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2358"]
[BlackElo "2554"]
[PlyCount "107"]
[EventDate "2022.11.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "AUT"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Tschaturanga"]
[BlackTeam "Hohenems"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "AUT"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a6 6. a4 d6 7. 0-0 Ba7 8. Re1 0-0 9. h3 h6 10. Nbd2 Re8 11. b4 Be6 12. Bxe6 Rxe6 13. Bb2 Nh5 14. Nf1 Rg6 15. Bc1 Qf6 16. Qe2 Nd8 17. Kh1 Nf4 18. Bxf4 Qxf4 19. a5 Re6 20. Ne3 Bxe3 21. Qxe3 Qxe3 22. Rxe3 Nc6 23. Nd2 Ree8 24. g3 f6 25. Kg2 Kf7 26. f4 Ke7 27. fxe5 fxe5 28. Rf3 Rf8 29. Nc4 Rxf3 30. Kxf3 Ke6 31. Rb1 Ne7 32. b5 axb5 33. Rxb5 Ra7 34. d4 exd4 35. cxd4 d5 36. Ne3 dxe4+ 37. Kxe4 Nc8 38. Re5+ Kd7 39. Nf5 g6 40. Nxh6 Nd6+ 41. Kd3 b5 42. axb6 Ra3+ 43. Kc2 cxb6 44. Rg5 b5 45. Ng4 Nf5 46. Rxg6 Rxg3 47. Ne5+ Ke7 48. Rxg3 Nxg3 49. Kd3 Ke6 50. h4 Kf5 51. Nf3 Kf4 52. Ne5 Nf5 53. h5 Kg5 54. d5 1/2-1/2

[Event "AUT-chT 2223"]
[Site "Austria"]
[Date "2023.04.14"]
[Round "10.2"]
[White "Ovsejevitsch, Sergei"]
[Black "Baldauf, Marco"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2554"]
[BlackElo "2501"]
[PlyCount "65"]
[EventDate "2022.11.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "AUT"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Hohenems"]
[BlackTeam "Schach ohne Grenzen"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "AUT"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 0-0 8. Rc1 c5 9. dxc5 Qxd1+ 10. Kxd1 Be6 11. Bxg7 Kxg7 12. Bc4 Rd8+ 13. Ke2 Rd4 14. Bxe6 Rxe4+ 15. Kd3 Rxe6 16. Nf3 Na6 17. Rhe1 Rxe1 18. Nxe1 Rc8 19. Kd4 Rd8+ 20. Ke3 Nb4 21. Rc4 Nd5+ 22. Ke2 e5 23. Nd3 f5 24. g3 e4 25. Nf4 Kf6 26. Nxd5+ Rxd5 27. c6 bxc6 28. Rxc6+ Ke5 29. Ra6 Rc5 30. Kd2 Rd5+ 31. Ke2 Rc5 32. b4 Rc4 33. b5 1/2-1/2

[Event "AUT-chT 2223"]
[Site "Austria"]
[Date "2023.04.13"]
[Round "9.2"]
[White "Peyrer, Konstantin"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "C83"]
[WhiteElo "2393"]
[BlackElo "2554"]
[PlyCount "104"]
[EventDate "2022.11.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "AUT"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Ottakring"]
[BlackTeam "Hohenems"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "AUT"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Be3 Be7 10. c3 Nc5 11. Bc2 Nd7 12. Bd4 0-0 13. Re1 Na5 14. b4 Nc4 15. Nbd2 c5 16. bxc5 Nxc5 17. Nb3 Na4 18. Nbd2 Qa5 19. Nxc4 dxc4 20. Bxa4 Qxa4 21. Qxa4 bxa4 22. Be3 Rfb8 23. Nd4 Rb2 24. Bc1 Rb7 25. Kf1 g6 26. Nxe6 fxe6 27. Re4 Rc8 28. Ke2 g5 29. Kd1 Kf7 30. Kc2 Kg6 31. f3 h5 32. h3 Rb5 33. Rb1 Kf5 34. Bd2 Rcb8 35. Ree1 a3 36. Rxb5 axb5 37. Rf1 Rd8 38. f4 gxf4 39. Bxf4 Ke4 40. Bc1 Rg8 41. Re1+ Kd5 42. Re2 h4 43. Bf4 Bg5 44. g3 Bxf4 45. gxf4 Rg1 46. Kd2 Rg3 47. f5 exf5 48. e6 Rg8 49. e7 Re8 50. Rf2 Ke5 51. Rf1 Rxe7 52. Rb1 Rg7 0-1

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.21"]
[Round "9"]
[White "Ovsejevitsch, Sergei"]
[Black "Solodovnichenko, Yuri"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2581"]
[BlackElo "2508"]
[PlyCount "48"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e3 e6 4. Bxc4 Nf6 5. Nf3 c5 6. 0-0 a6 7. Nc3 b5 8. Be2 cxd4 9. exd4 Bb7 10. Ne5 Nc6 11. Bf3 Rc8 12. a4 b4 13. Ne4 Nxe4 14. Bxe4 Be7 15. Be3 0-0 16. Rc1 Nxe5 17. Bxb7 Rxc1 18. Bxc1 Qb6 19. Bxa6 Qxa6 20. dxe5 Rd8 21. Qc2 Rc8 22. Qd1 Rd8 23. Qc2 Rc8 24. Qd1 Rd8 1/2-1/2

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.20"]
[Round "8"]
[White "Vinter Schou, Uffe"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2407"]
[BlackElo "2581"]
[PlyCount "112"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Nf3 d4 4. Bg2 Nc6 5. 0-0 Bc5 6. d3 Nge7 7. Na3 0-0 8. Nc2 a5 9. b3 Nb4 10. a3 Nxc2 11. Qxc2 Nc6 12. Bd2 Re8 13. Qb2 e5 14. b4 Bf8 15. b5 Nb8 16. e3 dxe3 17. Bxe3 Nd7 18. Rfe1 Rb8 19. d4 exd4 20. Bxd4 Nc5 21. Rxe8 Qxe8 22. Re1 Be6 23. Qc3 Qd8 24. h4 h6 25. Re5 b6 26. Re3 Qd6 27. Kh2 Re8 28. Be5 Qd8 29. Nd4 Bd6 30. Bxg7 Qxh4+ 31. Kg1 Qg5 32. Nxe6 Rxe6 33. Rxe6 Nxe6 34. Bf6 Qf5 35. f4 Bxa3 36. Be5 Bd6 37. Bxd6 cxd6 38. Bd5 a4 39. Qe3 Nc5 40. Kg2 Kg7 41. Qc3+ Qf6 42. Qf3 Kf8 43. Kh3 Qf5+ 44. Kh2 h5 45. Qc3 Kg8 46. Qe3 Qc2+ 47. Kh3 Kf8 48. Qf3 Qf5+ 49. Kh2 Qg4 50. Qe3 h4 51. gxh4 Qxh4+ 52. Kg2 Qf6 53. Qf3 Qb2+ 54. Kf1 a3 55. Qg4 a2 56. Qc8+ Ke7 0-1

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.19"]
[Round "7"]
[White "Ovsejevitsch, Sergei"]
[Black "Korley, Kassa"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2581"]
[BlackElo "2432"]
[PlyCount "122"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 c6 6. Qc2 g6 7. e3 Bf5 8. Qd2 Nf6 9. Nge2 Nbd7 10. Ng3 Be6 11. Bd3 h5 12. h3 Nb6 13. 0-0 Rg8 14. Bg5 h4 15. Nge2 Qd7 16. Qc2 Nh5 17. Bxe7 Qxe7 18. Rfe1 Kf8 19. e4 dxe4 20. Nxe4 Nd5 21. Nc5 Re8 22. Nc3 Ndf4 23. Nxe6+ Nxe6 24. Bc4 Nhf4 25. Bxe6 Nxe6 26. d5 cxd5 27. Nxd5 Qg5 28. Nc7 Nxc7 29. Qxc7 Kg7 30. Qxb7 Rb8 31. Qxa7 Rxb2 32. a4 Rd8 33. Ra3 Qd2 34. Rf1 Rd7 35. Qc5 Rd5 36. Qe7 Rb4 37. a5 Rd7 38. Qe5+ f6 39. Qa1 Qb2 40. Qxb2 Rxb2 41. a6 Ra7 42. Rfa1 Rb6 43. Kf1 Re6 44. Ra5 f5 45. R1a4 Kf6 46. Rxh4 Raxa6 47. Rxa6 Rxa6 48. g3 Ra1+ 49. Kg2 Ra6 50. Rh7 Ra3 51. h4 Rb3 52. h5 gxh5 53. Rxh5 Kg6 54. Rh8 Rb2 55. Rd8 Kg5 56. Kf3 Rb3+ 57. Ke2 Rb2+ 58. Ke3 Rb3+ 59. Ke2 Rb2+ 60. Kf3 Rb3+ 61. Kg2 Rb2 1/2-1/2

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.14"]
[Round "2"]
[White "Nielsen, Viktor Haarmark"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2336"]
[BlackElo "2581"]
[PlyCount "60"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 a5 5. Bg2 0-0 6. Nf3 b6 7. 0-0 Ba6 8. Qc2 c5 9. Bxb4 axb4 10. Rd1 Qe7 11. e4 cxd4 12. e5 Ne8 13. Nxd4 Ra7 14. b3 d6 15. exd6 Nxd6 16. Nd2 Rc8 17. Ne4 Nxe4 18. Qxe4 Bb7 19. Qe1 Bxg2 20. Kxg2 Rd7 21. Nb5 Rcd8 22. Rxd7 Rxd7 23. Rd1 h5 24. h4 Qd8 25. Rxd7 Nxd7 26. Nd4 Qa8+ 27. Nf3 Qxa2 28. Qxb4 Qa8 29. Qd6 Qb7 30. Kg1 Qxf3 1/2-1/2

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.13"]
[Round "1"]
[White "Aarav, Dengla"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C60"]
[WhiteElo "2382"]
[BlackElo "2581"]
[PlyCount "70"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. d4 Nxd4 5. Nxd4 exd4 6. Qxd4 Nc6 7. Qe3 Bb4+ 8. c3 Ba5 9. Qg5 Qxg5 10. Bxg5 Nd4 11. Bd3 Ne6 12. Be3 Bb6 13. Bxb6 axb6 14. 0-0 d6 15. Nd2 0-0 16. Rfe1 Nc5 17. Bc2 Re8 18. Nb3 Na4 19. Rab1 Bd7 20. a3 b5 21. Nd2 Nb6 22. Nf1 Bc6 23. f3 d5 24. exd5 Bxd5 25. Ne3 Be6 26. Kf2 Kf8 27. Rbd1 h6 28. h4 c6 29. h5 Red8 30. g4 Rxd1 31. Rxd1 Ke7 32. f4 Nc4 33. Nxc4 bxc4 34. Re1 Kf6 35. Kg3 Rd8 1/2-1/2

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.13"]
[Round "4"]
[White "Hillarp Persson, Tiger"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "E19"]
[WhiteElo "2514"]
[BlackElo "2581"]
[PlyCount "78"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 Be7 6. Nc3 0-0 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6 11. b3 Nd7 12. Bb2 Nf6 13. d5 e5 14. Nxe5 dxe5 15. d6 Bxg2 16. Qxe5 Re8 17. dxe7 Qxe7 18. Qxe7 Rxe7 19. Kxg2 Rxe2 20. Bxf6 gxf6 21. a4 Rae8 22. a5 R8e5 23. axb6 axb6 24. Ra6 Rf5 25. Rf1 Re6 26. f4 Rh5 27. h4 f5 28. Rd1 Rhh6 29. Rd5 Rhf6 30. Kf2 Kg7 31. Ra8 Re7 32. Ra2 Kg6 33. Re2 Ra7 34. Kf3 Ra1 35. h5+ Kg7 36. Ree5 Rb1 37. Rxf5 Rxf5 38. Rxf5 Rxb3+ 39. Kg4 h6 1/2-1/2

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.13"]
[Round "6"]
[White "Olsen, Filip Boe"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "2427"]
[BlackElo "2581"]
[PlyCount "70"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bg5 Be7 7. e3 0-0 8. Rc1 Nbd7 9. cxd5 exd5 10. Be2 h6 11. Bf4 c5 12. dxc5 bxc5 13. 0-0 Rc8 14. Ne5 Nxe5 15. Bxe5 Nd7 16. Bg3 Nb6 17. Bg4 f5 18. Bf3 Qd7 19. Ne2 g5 20. Bh5 d4 21. Be5 dxe3 22. fxe3 Qe6 23. Bg3 Nd5 24. Bf2 Nxe3 25. Bxe3 Qxe3+ 26. Kh1 Rcd8 27. Qc2 Rd2 28. Qc4+ Bd5 29. Qa6 Bd6 30. Rc3 Qe5 31. Rg3 Qe6 32. Rc3 g4 33. Rf2 Rd1+ 34. Ng1 Rxg1+ 35. Kxg1 Bxh2+ 0-1

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.13"]
[Round "5"]
[White "Ovsejevitsch, Sergei"]
[Black "Pedersen, Nicolai Vesterbaek"]
[Result "1/2-1/2"]
[ECO "E21"]
[WhiteElo "2581"]
[BlackElo "2366"]
[PlyCount "84"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. dxc5 Na6 6. Bd2 Nxc5 7. e3 0-0 8. Be2 b6 9. 0-0 Bb7 10. a3 Bxc3 11. Bxc3 Nce4 12. Be1 Rc8 13. Nd2 Nxd2 14. Bxd2 d5 15. cxd5 Bxd5 16. Bb4 Re8 17. Bb5 Nd7 18. Qg4 f5 19. Qf4 a5 20. Bd6 Bc6 21. Ba6 Ra8 22. Be2 Qf6 23. Qd4 Qxd4 24. exd4 Rec8 25. Rac1 Nf6 26. f3 Nd5 27. Kf2 Ba4 28. Bd3 Kf7 29. Ke2 g6 30. Kd2 Rd8 31. Be5 Rd7 32. g4 Ne7 33. Rc7 Rxc7 34. Bxc7 Nc6 35. gxf5 gxf5 36. d5 exd5 37. Bxf5 Nd4 38. Bxh7 Re8 39. Rf2 Nb3+ 40. Kd3 Nc5+ 41. Kd2 Nb3+ 42. Kd3 Nc5+ 1/2-1/2

[Event "Skandenborg Smuk"]
[Site "Skanderborg"]
[Date "2022.08.13"]
[Round "3"]
[White "Ovsejevitsch, Sergei"]
[Black "Roshka, Yevgeniy"]
[Result "1-0"]
[ECO "A72"]
[WhiteElo "2581"]
[BlackElo "2499"]
[PlyCount "109"]
[EventDate "2022.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 Bg7 8. e4 0-0 9. Be2 Ne8 10. 0-0 f5 11. exf5 Bxf5 12. Nde4 Na6 13. Bg5 Nf6 14. Ng3 Bd7 15. Qd2 Rf7 16. Bh6 Bxh6 17. Qxh6 Nc7 18. a4 Qf8 19. Qd2 a6 20. f4 Re8 21. f5 Bxf5 22. Nxf5 gxf5 23. Rxf5 Ne4 24. Rxf7 Nxd2 25. Rxf8+ Kxf8 26. Bd3 Kg7 27. Rd1 Nb3 28. Ne4 Rd8 29. Rf1 b5 30. axb5 axb5 31. Ng5 Rd7 32. Bxb5 Re7 33. Bc6 Nd4 34. Nf3 Ne2+ 35. Kh1 Nf4 36. Nh4 Re2 37. Nf5+ Kg6 38. Ng3 Rxb2 39. Rxf4 Rb1+ 40. Rf1 Rxf1+ 41. Nxf1 c4 42. Kg1 c3 43. Ne3 Kf6 44. Kf2 Ke5 45. Ke2 Kd4 46. Ba4 Na6 47. Bc2 h5 48. h4 Nc5 49. Bg6 Ne4 50. Bxe4 Kxe4 51. g3 Kd4 52. g4 hxg4 53. h5 Ke5 54. h6 Kf6 55. Nxg4+ 1-0

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.12"]
[Round "9"]
[White "Ovsejevitsch, Sergei"]
[Black "Parvanyan, Ashot"]
[Result "1-0"]
[ECO "D41"]
[WhiteElo "2581"]
[BlackElo "2424"]
[PlyCount "83"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 dxe4 8. Qxd8+ Kxd8 9. Ng5 Be6 10. Bb5 h6 11. Ngxe4 Nxe4 12. Nxe4 a6 13. Ba4 Bb4+ 14. Ke2 b5 15. Bb3 Bxb3 16. axb3 Nc6 17. Be3 Re8 18. Rhc1 Kc7 19. Nc5 Bxc5 20. Rxc5 Kb7 21. Rd1 Rad8 22. Rcd5 Rxd5 23. Rxd5 Kc7 24. h4 Na5 25. Rd3 h5 26. Kf3 Re6 27. Bd4 g6 28. Kf4 Nc6 29. g3 Re2 30. Rf3 Kd7 31. Kg5 Ke7 32. Bf6+ Ke8 33. Kh6 Ne7 34. Bxe7 Kxe7 35. Kg7 Rxb2 36. Rxf7+ Ke8 37. Rf3 Rd2 38. Kxg6 Rd5 39. Rf6 a5 40. Ra6 b4 41. g4 hxg4 42. h5 1-0

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.11"]
[Round "7"]
[White "Arndt, Magnus"]
[Black "Ovsejevitsch, Sergei"]
[Result "1-0"]
[ECO "E18"]
[WhiteElo "2347"]
[BlackElo "2581"]
[PlyCount "51"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 b6 7. cxd5 exd5 8. Nc3 Bb7 9. Bf4 Na6 10. Rc1 Re8 11. Ne5 h6 12. h4 Bf8 13. e3 c5 14. g4 cxd4 15. exd4 Nc7 16. g5 Ne6 17. Be3 Ne4 18. Qh5 Qe7 19. gxh6 Nf6 20. Qf3 gxh6 21. Bh3 Bg7 22. Kh2 Kh8 23. Rg1 Rg8 24. Ne2 Rac8 25. Rxc8 Bxc8 26. Ng3 1-0

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.11"]
[Round "8"]
[White "Kopylov, Daniel"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C75"]
[WhiteElo "2326"]
[BlackElo "2581"]
[PlyCount "75"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 a6 5. Ba4 d6 6. c3 Bd7 7. d4 Ng6 8. d5 Nb8 9. Bxd7+ Nxd7 10. c4 Be7 11. Nc3 0-0 12. Qc2 Nh4 13. Nxh4 Bxh4 14. b4 a5 15. Ba3 g6 16. bxa5 Rxa5 17. Bb4 Ra6 18. a4 Be7 19. a5 f5 20. Ra3 Rf7 21. exf5 gxf5 22. Nb5 Nc5 23. Rg3+ Kh8 24. f4 Ne4 25. Rgf3 c5 26. Be1 Qd7 27. fxe5 dxe5 28. Qxe4 fxe4 29. Rxf7 Rg6 30. Bh4 Qg4 31. Bg3 Qg5 32. R7f5 Qe3+ 33. Kh1 Rxg3 34. hxg3 Qh6+ 35. Kg1 Qe3+ 36. Kh2 Qh6+ 37. Kg1 Qe3+ 38. Kh2 1/2-1/2

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.10"]
[Round "6"]
[White "Ovsejevitsch, Sergei"]
[Black "Sumets, Andrey"]
[Result "1/2-1/2"]
[ECO "D26"]
[WhiteElo "2581"]
[BlackElo "2547"]
[PlyCount "24"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 dxc4 6. Bxc4 c5 7. 0-0 Nc6 8. Qe2 cxd4 9. Rd1 Be7 10. exd4 0-0 11. Nc3 Nd5 12. Bd3 b6 1/2-1/2

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.10"]
[Round "5"]
[White "Petrovskiy, Vadim"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "2332"]
[BlackElo "2581"]
[PlyCount "42"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Re8 14. Bc4 Be6 15. Kb1 Rb8 16. Bb3 Qc7 17. Ne4 Red8 18. Qe1 h6 19. g4 f5 20. gxf5 gxf5 21. Ng3 Qf7 1/2-1/2

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.09"]
[Round "4"]
[White "Ovsejevitsch, Sergei"]
[Black "Olsen, Filip Boe"]
[Result "0-1"]
[ECO "E21"]
[WhiteElo "2581"]
[BlackElo "2427"]
[PlyCount "90"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 0-0 5. Bg5 c5 6. dxc5 Na6 7. Rc1 Nxc5 8. Nd2 h6 9. Bxf6 Qxf6 10. g3 d5 11. cxd5 exd5 12. Bg2 Be6 13. 0-0 Rad8 14. a3 Bxc3 15. Rxc3 b6 16. Re1 Rfe8 17. h3 a5 18. g4 a4 19. Nf1 d4 20. Rf3 Qg6 21. Qd2 d3 22. Qb4 Bd5 23. Re3 Bxg2 24. Kxg2 Rxe3 25. Nxe3 Qf6 26. Qc3 d2 27. Rd1 Qxc3 28. bxc3 Ne4 29. Nf1 Nxc3 30. Rxd2 Rxd2 31. Nxd2 Nxe2 32. Kf3 Ng1+ 33. Kg2 Ne2 34. Kf3 Nc1 35. Ne4 b5 36. Nc3 b4 37. axb4 a3 38. b5 a2 39. Nxa2 Nxa2 40. b6 Nb4 41. b7 Na6 42. Kf4 Kf8 43. g5 h5 44. g6 fxg6 45. Ke5 Ke7 0-1

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.09"]
[Round "3"]
[White "Plat, Vojtech"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "E14"]
[WhiteElo "2556"]
[BlackElo "2581"]
[PlyCount "17"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. 0-0 Be7 6. c4 0-0 7. Nc3 d5 8. cxd5 exd5 9. Ne5 1/2-1/2

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.08"]
[Round "1"]
[White "Fromm, Marius"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2409"]
[BlackElo "2581"]
[PlyCount "90"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 0-0 10. Be3 Bd7 11. a4 a6 12. Bxc6 bxc6 13. Nxe4 dxe4 14. Nd2 Bf5 15. Nc4 Be6 16. Rc1 Bd5 17. 0-0 Qe7 18. Qg4 Kh8 19. Rc3 Rab8 20. Nxb6 Rxb6 21. Rb1 Rfb8 22. h4 h6 23. h5 Rb4 24. a5 R4b5 25. Bd2 Qe6 26. Qxe6 fxe6 27. Rc5 Rxc5 28. dxc5 Ba2 29. Ra1 Rxb2 30. Bc1 Rc2 31. Be3 Kh7 32. Kh2 Rb2 33. Bc1 Rxf2 34. Kg3 Re2 35. Bf4 Bd5 36. Kh3 Rc2 37. g3 Rxc5 38. Kg4 Rb5 39. Be3 c5 40. Kf4 c4 41. g4 Rb8 42. Kg3 Rb3 43. Kf4 Rd3 44. Ra2 c3 45. Rc2 Kg8 0-1

[Event "Berlin Doppelbauer"]
[Site "Berlin"]
[Date "2022.08.08"]
[Round "2"]
[White "Ovsejevitsch, Sergei"]
[Black "Pajeken, Jakob Leon"]
[Result "1/2-1/2"]
[ECO "C28"]
[WhiteElo "2581"]
[BlackElo "2457"]
[PlyCount "56"]
[EventDate "2022.08.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "8"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. d3 Nf6 4. Nc3 Bb4 5. Nge2 d5 6. exd5 Nxd5 7. 0-0 Be6 8. Bb3 Bxc3 9. bxc3 0-0 10. Rb1 Rb8 11. d4 exd4 12. cxd4 b5 13. Qd2 Re8 14. Ng3 Nf6 15. c3 Bxb3 16. axb3 b4 17. Rd1 Nd5 18. cxb4 Rxb4 19. Nf5 Qf6 20. Qg5 Qxg5 21. Bxg5 g6 22. Rbc1 gxf5 23. Rxc6 Rxd4 24. Rdc1 Re6 25. R6c4 Ra6 26. Re1 Re6 27. Ra1 Ra6 28. Re1 Re6 1/2-1/2

[Event "Oberliga Sued W 2122"]
[Site "Germany"]
[Date "2022.06.26"]
[Round "5.1"]
[White "Bruehl, Andreas"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "2318"]
[BlackElo "2571"]
[PlyCount "60"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Altenkirchen"]
[BlackTeam "Gau Algesheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 d5 2. Bb2 Bg4 3. f3 Bf5 4. f4 e6 5. Nf3 Nf6 6. e3 Be7 7. Be2 h6 8. 0-0 0-0 9. Ne5 Nfd7 10. d3 Nxe5 11. fxe5 c5 12. Nd2 Bg5 13. Rf3 Nc6 14. e4 dxe4 15. Nxe4 Bxe4 16. dxe4 Qc7 17. Qd6 Qb6 18. Qd1 Rad8 19. Qe1 Nd4 20. Bxd4 Rxd4 21. Bc4 Qc6 22. Bd3 b5 23. c3 Rd7 24. Qf1 a6 25. a4 c4 26. bxc4 bxa4 27. Kh1 Be7 28. c5 Bxc5 29. Bxa6 Rb8 30. Qc4 Ra7 0-1

[Event "Oberliga Sued W 2122"]
[Site "Germany"]
[Date "2022.06.12"]
[Round "4.1"]
[White "Ovsejevitsch, Sergei"]
[Black "Mayer, Frank"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2571"]
[BlackElo "2292"]
[PlyCount "67"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Gau Algesheim"]
[BlackTeam "Illingen Turm"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. d4 e6 3. c4 Nf6 4. Nc3 Be7 5. Qc2 c5 6. dxc5 Na6 7. cxd5 Nxd5 8. e4 Ndb4 9. Bb5+ Bd7 10. Qe2 Nxc5 11. 0-0 Bxb5 12. Qxb5+ Nc6 13. Rd1 Qc7 14. Nd5 exd5 15. exd5 0-0 16. dxc6 bxc6 17. Qc4 Ne6 18. Be3 Rfd8 19. b3 Rxd1+ 20. Rxd1 Rd8 21. Rc1 Qa5 22. g3 c5 23. Ne5 Qc7 24. Nd3 Rc8 25. Qe4 Qa5 26. b4 Qxa2 27. Qb7 Re8 28. bxc5 a5 29. Ne5 f6 30. Qb5 Kf8 31. Nd7+ Kf7 32. c6 Rc8 33. Nb6 Nc7 34. Qh5+ 1-0

[Event "Oberliga Sued W 2122"]
[Site "Germany"]
[Date "2022.05.01"]
[Round "9.1"]
[White "Philippe, Christophe"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2374"]
[BlackElo "2571"]
[PlyCount "94"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Saarbruecken"]
[BlackTeam "Gau Algesheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. c3 e6 4. d4 d5 5. e5 Qb6 6. Be2 Nh6 7. 0-0 cxd4 8. cxd4 Nf5 9. Nc3 Nfxd4 10. Nxd4 Qxd4 11. Nb5 Qxd1 12. Rxd1 Kd7 13. Be3 Bb4 14. a3 Ba5 15. f4 Bb6 16. Bxb6 axb6 17. Rac1 Ke7 18. Rc3 Bd7 19. Rg3 g6 20. h4 Ra4 21. b4 Raa8 22. h5 Rhg8 23. h6 g5 24. fxg5 Nxe5 25. Nd4 Rac8 26. Re1 Kd6 27. Kh2 Ba4 28. Rf1 Bc2 29. Nb5+ Ke7 30. Re1 Bg6 31. Bf1 Nc4 32. Kg1 Nd2 33. Nc3 Rgd8 34. Be2 d4 35. Na4 Ne4 36. Rg4 Nc3 37. Nxc3 dxc3 38. Rc1 c2 39. Kf2 Rd2 40. Rg3 Bh5 41. Re3 Rxe2+ 42. Rxe2 Bxe2 43. Kxe2 Kd6 44. Kd2 Kd5 45. a4 Kd4 46. a5 bxa5 47. bxa5 e5 0-1

[Event "Oberliga Sued W 2122"]
[Site "Germany"]
[Date "2022.04.03"]
[Round "8.1"]
[White "Ovsejevitsch, Sergei"]
[Black "Frischmann, Rick"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2571"]
[BlackElo "2346"]
[PlyCount "69"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Gau Algesheim"]
[BlackTeam "Schwarzenbach"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 e5 5. Nxe5 0-0 6. Nf3 Re8 7. d3 d5 8. cxd5 Nxd5 9. Nxd5 Qxd5 10. Be2 Qd6 11. 0-0 c5 12. d4 cxd4 13. Bc4 Be6 14. Bxe6 Rxe6 15. Qd3 Na6 16. Ng5 Re7 17. f4 Nc5 18. Qh3 h6 19. e5 Qb6 20. Nf3 Rd8 21. f5 Bxe5 22. Bxh6 Ne4 23. Rae1 d3+ 24. Be3 Qxb2 25. fxg6 fxg6 26. Qg4 Bf6 27. Nh4 Rde8 28. Nf5 Re6 29. Qxg6+ Bg7 30. Qg4 Nd6 31. Bd4 Qxd4+ 32. Nxd4 Rxe1 33. Nf3 R8e4 34. Qg6 d2 35. Nxd2 1-0

[Event "Oberliga Sued W 2122"]
[Site "Germany"]
[Date "2022.03.13"]
[Round "7.1"]
[White "Carow, Johannes"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "2440"]
[BlackElo "2571"]
[PlyCount "94"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Heidesheim"]
[BlackTeam "Gau Algesheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. Nc3 Bb4 3. Nd5 Bc5 4. Nf3 e4 5. d4 Bf8 6. Nd2 c6 7. Nc3 d5 8. Ndb1 Na6 9. cxd5 cxd5 10. Qb3 Nc7 11. Bf4 Bd6 12. Bxd6 Qxd6 13. Na3 a6 14. Na4 Ne7 15. e3 0-0 16. Be2 Qg6 17. g3 b5 18. Nc5 Bh3 19. Nc2 Ne6 20. a4 Ng5 21. axb5 axb5 22. Rxa8 Rxa8 23. Qxb5 Qf6 24. Qb7 Re8 25. Bb5 Rf8 26. Nd7 Qf3 27. Nxf8 Qxh1+ 28. Kd2 Kxf8 29. Qc7 Nf3+ 30. Kc3 g6 31. Qd8+ Kg7 32. Qxe7 Qxh2 33. Be2 Qxf2 34. Bxf3 exf3 35. Qe5+ Kh6 36. Qf4+ g5 37. Qf6+ Kh5 38. Qxf7+ Kg4 39. Qxd5 Qe2 40. e4 f2 41. Qf5+ Kxg3 42. Qxg5+ Qg4 43. Qxg4+ Kxg4 44. Ne3+ Kf3 45. Kd2 f1Q 46. Nxf1 Bxf1 47. e5 Ke4 0-1

[Event "Lublin 13th"]
[Site "Lublin"]
[Date "2021.11.26"]
[Round "4"]
[White "Chylewski, Patryk"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "E36"]
[WhiteElo "2135"]
[BlackElo "2558"]
[PlyCount "59"]
[EventDate "2021.11.25"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[EventCountry "POL"]
[EventCategory "4"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 d5 7. Bg5 dxc4 8. Qxc4 b6 9. Nf3 Ba6 10. Qa4 h6 11. Bh4 Qe7 12. Rc1 Rc8 13. e3 Bxf1 14. Rxf1 c5 15. dxc5 Rxc5 16. Rxc5 Qxc5 17. Bxf6 gxf6 18. Ke2 Nc6 19. Rd1 Ne5 20. Nxe5 Qxe5 21. Qg4+ Kf8 22. Qb4+ Kg7 23. Qg4+ Qg5 24. Qxg5+ hxg5 25. Kf3 Rc8 26. Rd7 Rc2 27. b4 a5 28. Rd6 Rc3 29. Rxb6 Rxa3 30. bxa5 1/2-1/2

[Event "Lublin 13th"]
[Site "Lublin"]
[Date "2021.11.26"]
[Round "6"]
[White "Dziuba, Marcin"]
[Black "Ovsejevitsch, Sergei"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2416"]
[BlackElo "2558"]
[PlyCount "65"]
[EventDate "2021.11.25"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[EventCountry "POL"]
[EventCategory "4"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bf4 Bb7 5. e3 c5 6. d5 exd5 7. Nc3 dxc4 8. Bxc4 Be7 9. Nb5 0-0 10. Nc7 d5 11. Be2 Nh5 12. Nxa8 Nxf4 13. exf4 Bxa8 14. 0-0 Nc6 15. a3 Bf6 16. Qc2 Qc7 17. g3 c4 18. Rad1 b5 19. b3 Na5 20. bxc4 dxc4 21. Qf5 Qc6 22. Qd7 Qe4 23. Rfe1 a6 24. Rc1 Bc6 25. Qc7 Nb3 26. Bxc4 Qxf3 27. Bxf7+ Rxf7 28. Qc8+ Rf8 29. Qe6+ Kh8 30. Rxc6 h6 31. Rc8 Be7 32. Rxf8+ Bxf8 33. Qf7 1-0

[Event "Lublin 13th"]
[Site "Lublin"]
[Date "2021.11.26"]
[Round "5"]
[White "Ovsejevitsch, Sergei"]
[Black "Baum, Jonasz"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "2558"]
[BlackElo "2209"]
[PlyCount "77"]
[EventDate "2021.11.25"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[EventCountry "POL"]
[EventCategory "4"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nf6 6. d3 e6 7. Ng5 h6 8. Nh3 Nc6 9. f4 Be7 10. c4 0-0-0 11. Nc3 d5 12. e5 Ne8 13. Qe2 f6 14. exf6 Nxf6 15. Kh1 Rhe8 16. Ng1 e5 17. fxe5 Bd6 18. Nxd5 Nxd5 19. cxd5 Nxe5 20. Bf4 Ng6 21. Be3 Nf4 22. Qd2 Nxd5 23. Bxc5 Bxc5 24. Rac1 b6 25. b4 Nxb4 26. Qxb4 Qd4 27. Rc4 Qxd3 28. Rf7 Rd7 29. Qb5 Re1 30. Rxc5+ bxc5 31. Rf8+ Rd8 32. Qxd3 Rxf8 33. Qa6+ Kd7 34. Qxa7+ Kc6 35. Qa6+ Kd5 36. Qd3+ Kc6 37. Qg6+ Kb5 38. Qd3+ Kc6 39. Qa6+ 0-1

[Event "Lublin 13th"]
[Site "Lublin"]
[Date "2021.11.25"]
[Round "2"]
[White "Baum, Jonasz"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "E16"]
[WhiteElo "2209"]
[BlackElo "2558"]
[PlyCount "62"]
[EventDate "2021.11.25"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[EventCountry "POL"]
[EventCategory "4"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Nbd2 Bb7 6. Bg2 0-0 7. 0-0 d5 8. Qc2 Na6 9. a3 Be7 10. b4 c5 11. dxc5 bxc5 12. b5 Nc7 13. Bb2 d4 14. Ne5 Bxg2 15. Kxg2 Bd6 16. Nc6 Qd7 17. Nf3 Rfe8 18. e3 e5 19. exd4 exd4 20. Rfe1 Ne6 21. Qd3 h6 22. a4 Ng5 23. Nxg5 hxg5 24. a5 g4 25. a6 Nh7 26. Nxd4 Be5 27. Qf5 Qxf5 28. Nxf5 Bxb2 29. Rxe8+ Rxe8 30. Ra2 Bc3 31. b6 axb6 0-1

[Event "Lublin 13th"]
[Site "Lublin"]
[Date "2021.11.25"]
[Round "1"]
[White "Ovsejevitsch, Sergei"]
[Black "Chylewski, Patryk"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "2558"]
[BlackElo "2135"]
[PlyCount "82"]
[EventDate "2021.11.25"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[EventCountry "POL"]
[EventCategory "4"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. b3 e5 3. Bb2 d6 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. Ne2 Qg4 7. 0-0 Qxe4 8. d4 Nd7 9. f4 0-0-0 10. dxe5 dxe5 11. Nbc3 Qe3+ 12. Kh1 c4 13. Qd5 Nh6 14. Qxc4+ Qc5 15. Qxc5+ Bxc5 16. Ne4 Rhe8 17. Nxc5 Nxc5 18. fxe5 f6 19. Ng3 fxe5 20. Rae1 Rd2 21. b4 Rxc2 22. Rxe5 Rxe5 23. Bxe5 Nd3 24. Bxg7 Ng4 25. Bd4 Nxb4 26. h3 Nc6 27. Bg1 Nge5 28. Rf8+ Kc7 29. Rh8 Rxa2 30. Rxh7+ Kb8 31. Ne4 Rb2 32. Bc5 Nd3 33. Bd6+ Kc8 34. Nf6 Rd2 35. Kh2 Ne1 36. Bf4 Rxg2+ 37. Kh1 Rf2 38. Rc7+ Kd8 39. Rd7+ Kc8 40. Rc7+ Kd8 41. Rd7+ Kc8 1/2-1/2

[Event "Lublin 13th"]
[Site "Lublin"]
[Date "2021.11.25"]
[Round "3"]
[White "Ovsejevitsch, Sergei"]
[Black "Dziuba, Marcin"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2558"]
[BlackElo "2416"]
[PlyCount "119"]
[EventDate "2021.11.25"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[EventCountry "POL"]
[EventCategory "4"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. b3 Nf6 3. e5 Nd5 4. Bb2 Nc6 5. Nf3 g6 6. Bc4 Nb6 7. Bb5 Bg7 8. 0-0 0-0 9. Re1 Qc7 10. Na3 a6 11. Bf1 d6 12. exd6 Qxd6 13. Bxg7 Kxg7 14. h3 Rb8 15. Ng5 e5 16. Ne4 Qe7 17. Nc4 Nd5 18. Nc3 Nxc3 19. dxc3 Rd8 20. Qf3 f6 21. g4 Be6 22. g5 Rf8 23. gxf6+ Rxf6 24. Qg3 Bxc4 25. Bxc4 Rbf8 26. Bd5 Rxf2 27. Bxc6 bxc6 28. Qxe5+ Qxe5 29. Rxe5 Rxc2 30. Rxc5 Rff2 31. Rg5 h6 32. Rg3 Rxa2 33. Rxa2 Rxa2 34. Rg4 Ra3 35. Rb4 a5 36. Rb6 c5 37. Rb5 c4 38. bxc4 Rxc3 39. Kg2 a4 40. c5 Kf6 41. Ra5 a3 42. c6 Ke6 43. h4 Kd6 44. Ra6 Kc7 45. Kh2 g5 46. hxg5 hxg5 47. Kg2 Kd6 48. Kh2 Kc5 49. c7 Kb4 50. Ra7 Kb3 51. Rb7+ Kc2 52. Ra7 Kb2 53. Rb7+ Ka1 54. Rb3 Rc2+ 55. Kg3 a2 56. Rb7 Rc4 57. Kf3 Rc3+ 58. Kg4 Rc5 59. Kh5 Rxc7 60. Rxc7 1/2-1/2

[Event "Oberliga Sued W 2122"]
[Site "Germany"]
[Date "2021.11.14"]
[Round "2.1"]
[White "Ovsejevitsch, Sergei"]
[Black "Aditya, Pai"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "2571"]
[BlackElo "1575"]
[PlyCount "67"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Gau Algesheim"]
[BlackTeam "St Ingbert"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. b4 a5 7. b5 c6 8. Ba3 Qc7 9. Rc1 cxb5 10. Nxb5 Qd8 11. Be2 Nc6 12. 0-0 Bf5 13. Nd2 Qd7 14. cxd5 Nb4 15. Qb3 Qxd5 16. Bc4 Qd7 17. Bxb4 axb4 18. Qxb4 Ne4 19. f3 Nxd2 20. Qxd2 Qd8 21. Bb3 Bd7 22. Nc3 e6 23. Rfd1 Qb6 24. Ne4 Bc6 25. Nc5 Rfd8 26. Qf2 Ra5 27. f4 Qa7 28. h3 Bd5 29. Qh4 Ra8 30. Nd7 Bc6 31. Ne5 Be4 32. Rc7 Rf8 33. Nd7 Rd8 34. Qxd8+ 1-0

[Event "Oberliga Sued W 2122"]
[Site "Germany"]
[Date "2021.10.24"]
[Round "1.1"]
[White "Ovsejevitsch, Sergei"]
[Black "Lang, Torsten"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2571"]
[BlackElo "2296"]
[PlyCount "75"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Gau Algesheim"]
[BlackTeam "Landau"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Ne2 Nf6 5. Nbc3 0-0 6. Ng3 c6 7. Be2 a6 8. 0-0 b5 9. Bg5 Nbd7 10. Qd2 bxc4 11. Bxc4 c5 12. d5 Rb8 13. Rab1 Ne8 14. Bh6 Nc7 15. a4 Rb4 16. Bxg7 Kxg7 17. b3 Ne5 18. Be2 f6 19. f4 Nf7 20. Nd1 e6 21. Bc4 exd5 22. exd5 Re8 23. Ne3 Bd7 24. Qc3 Nh6 25. Rbe1 Kf7 26. f5 g5 27. Nc2 Rxe1 28. Rxe1 Rb8 29. Ne3 Qe7 30. Ng4 Qxe1+ 31. Qxe1 Nxg4 32. Ne4 Ne8 33. Nxc5 Bxf5 34. Nxa6 Rc8 35. Nb4 Ne5 36. Nc6 Ng7 37. Nxe5+ fxe5 38. a5 1-0

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.21"]
[Round "9"]
[White "Piorun, Kacper"]
[Black "Ovsejevitsch, Sergei"]
[Result "1-0"]
[ECO "C73"]
[WhiteElo "2608"]
[BlackElo "2579"]
[PlyCount "63"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 exd4 7. Qxd4 c5 8. Qd3 Nf6 9. Nc3 Be7 10. Bf4 0-0 11. 0-0-0 Re8 12. Rhe1 Bg4 13. h3 Bxf3 14. Qxf3 Nd7 15. e5 dxe5 16. Qg4 Bd6 17. Bg5 Qc8 18. Bh6 g6 19. Nd5 Re6 20. f4 f5 21. Qf3 e4 22. Qc3 Bf8 23. Bxf8 Nxf8 24. g4 Kf7 25. gxf5 gxf5 26. Rg1 Ng6 27. h4 Qh8 28. Qc4 Rb8 29. c3 Qc8 30. h5 Nh4 31. h6 Ng6 32. Rg5 1-0

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.20"]
[Round "8"]
[White "Ovsejevitsch, Sergei"]
[Black "Teclaf, Pawel"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2579"]
[BlackElo "2520"]
[PlyCount "60"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Nd2 c5 4. a3 Bxd2+ 5. Qxd2 cxd4 6. Nf3 Nf6 7. Nxd4 0-0 8. g3 d5 9. Bg2 dxc4 10. 0-0 e5 11. Nb5 Nc6 12. a4 a6 13. Qxd8 Rxd8 14. Nc7 Rb8 15. Nxa6 bxa6 16. Bxc6 Bb7 17. Bxb7 Rxb7 18. a5 Ne4 19. Ra4 Nd2 20. Re1 h6 21. Kg2 Nb3 22. Be3 Nd4 23. Rxc4 Rxb2 24. Bxd4 Rxd4 25. Rc6 Ra2 26. Rxa6 Rda4 27. f3 Rxa5 28. Rxa5 Rxa5 29. Rb1 Ra2 30. Kf2 f6 1/2-1/2

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.19"]
[Round "7"]
[White "Ovsejevitsch, Sergei"]
[Black "Navara, David"]
[Result "0-1"]
[ECO "A33"]
[WhiteElo "2579"]
[BlackElo "2675"]
[PlyCount "86"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Bc5 7. Nb3 Bb6 8. Bf4 d5 9. cxd5 Nxd5 10. Nxd5 exd5 11. e3 Qf6 12. Qd2 a5 13. a4 0-0 14. Bb5 h5 15. h4 d4 16. 0-0 Qxh4 17. exd4 Be6 18. Bg5 Qg4 19. d5 Nd4 20. Nxd4 Bxd5 21. f3 Qxd4+ 22. Kh1 Qxd2 23. Bxd2 Bd4 24. Bc3 Bxc3 25. bxc3 Rfc8 26. Rfe1 Be6 27. Re5 g6 28. Bd3 Kg7 29. Be4 Ra7 30. Ra3 Bc4 31. Re7 Kf6 32. Rd7 Ke5 33. Kg1 Rc5 34. Kf2 f5 35. Bd3 Be6 36. Rh7 Kf6 37. Bb5 f4 38. c4 Bg8 39. Rd7 Bxc4 40. Bxc4 Rxc4 41. Rad3 Ra6 42. Rxb7 Rxa4 43. Kg1 Rb4 0-1

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.18"]
[Round "6"]
[White "Gumularz, Szymon"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2512"]
[BlackElo "2579"]
[PlyCount "60"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 d6 9. c4 Nb6 10. exd6 Qxe2+ 11. Bxe2 Bxd6 12. Nc3 0-0 13. Be3 Be5 14. Rc1 a5 15. b3 a4 16. 0-0 axb3 17. axb3 Nd7 18. Bf3 Ra6 19. Rfd1 Nf6 20. Bd4 Bxd4 21. Rxd4 h5 22. Na4 Bg4 23. Nc5 Rb6 24. Bxg4 hxg4 25. Ra1 Re8 26. Ra7 Re5 27. Nd3 Re7 28. b4 Rb8 29. Kh2 Kh7 30. Ra6 c5 1/2-1/2

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.17"]
[Round "5"]
[White "Ovsejevitsch, Sergei"]
[Black "Tomczak, Jacek"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2579"]
[BlackElo "2604"]
[PlyCount "64"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Qd2 Qa5 9. Rb1 a6 10. Rc1 cxd4 11. cxd4 Qxd2+ 12. Kxd2 0-0 13. Nf3 e6 14. Bd3 Nc6 15. Rc4 Bd7 16. Rhc1 Rfc8 17. d5 exd5 18. exd5 Ne5 19. Nxe5 Bxe5 20. Rxc8+ Rxc8 21. Rxc8+ Bxc8 22. f4 Bd6 23. g3 Kf8 24. Kc3 b5 25. Bb6 Ke7 26. Kd4 Bg4 27. Bc5 Kd7 28. Bf1 h5 29. h4 Kc7 30. Bd3 Bc8 31. a3 Bg4 32. Bf1 Bd7 1/2-1/2

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.16"]
[Round "4"]
[White "Krasenkow, Michal"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2591"]
[BlackElo "2579"]
[PlyCount "97"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Nbxd2 0-0 7. Bg2 b6 8. Ne5 c5 9. dxc5 bxc5 10. Rc1 Na6 11. 0-0 Qd6 12. Nd3 Rb8 13. cxd5 exd5 14. e4 dxe4 15. Nxe4 Nxe4 16. Bxe4 Bb7 17. Bxb7 Rxb7 18. Qf3 Rd7 19. Nf4 Rfd8 20. Rc4 g6 21. Qc3 Qb6 22. Re1 Nb4 23. Rce4 Rd1 24. a3 Qc6 25. f3 Rxe1+ 26. Rxe1 Nd5 27. Qd2 Rd7 28. Re8+ Kg7 29. Nxd5 Qxd5 30. Qxd5 Rxd5 31. Kf2 Rd2+ 32. Re2 Rd3 33. Rc2 Rb3 34. g4 Kf6 35. Kg3 Rb5 36. Kf4 h6 37. Ke4 Ke6 38. f4 f5+ 39. gxf5+ gxf5+ 40. Kd3 Kd5 41. Kc3 c4 42. Rd2+ Kc5 43. Rd7 Rb3+ 44. Kc2 Rf3 45. Rxa7 Rxf4 46. Rc7+ Kd4 47. Rd7+ Kc5 48. Rc7+ Kd4 49. Rd7+ 1/2-1/2

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.15"]
[Round "3"]
[White "Ovsejevitsch, Sergei"]
[Black "Stocek, Jiri"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2579"]
[BlackElo "2604"]
[PlyCount "66"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. 0-0 Be7 7. b3 0-0 8. Bb2 d6 9. e3 a6 10. Qe2 Nbd7 11. Rfd1 Qc7 12. Rac1 Rfe8 13. d4 Ne4 14. Nxe4 Bxe4 15. Ne1 Bxg2 16. Nxg2 cxd4 17. Rxd4 Bf6 18. Rd2 Bxb2 19. Rxb2 Nf6 20. Rbc2 Red8 21. Ne1 Qb7 22. Nf3 Rd7 23. Nd4 Rc8 24. Qf3 Qxf3 25. Nxf3 Kf8 26. Kf1 Ke7 27. Ke2 g6 28. h3 h5 29. Kd3 Rdc7 30. Nd2 Nd7 31. Ke2 Nf6 32. Kd3 Nd7 33. Ke2 Nf6 1/2-1/2

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.14"]
[Round "2"]
[White "Shevchenko, Kirill"]
[Black "Ovsejevitsch, Sergei"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2619"]
[BlackElo "2579"]
[PlyCount "53"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. d3 d5 5. 0-0 e6 6. c4 Be7 7. cxd5 exd5 8. Nd4 g6 9. e4 dxe4 10. dxe4 0-0 11. Nc3 Re8 12. e5 Bxg2 13. Kxg2 Bc5 14. Ndb5 Nfd7 15. Bf4 Na6 16. Ne4 Be7 17. Qf3 Ndc5 18. Rad1 Qc8 19. Nec3 Ne6 20. Nd5 Nxf4+ 21. Qxf4 Bd8 22. Rfe1 Nc5 23. Qh6 Re6 24. b4 Nd7 25. Nd4 Re8 26. e6 Qb7 27. exf7+ 1-0

[Event "Rubinstein Memorial 57th"]
[Site "Polanica Zdroj"]
[Date "2021.08.13"]
[Round "1"]
[White "Ovsejevitsch, Sergei"]
[Black "Bluebaum, Matthias"]
[Result "1/2-1/2"]
[ECO "D24"]
[WhiteElo "2579"]
[BlackElo "2674"]
[PlyCount "61"]
[EventDate "2021.08.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "14"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. a4 b6 7. Bxc4 Bb7 8. 0-0 Bb4 9. Qe2 0-0 10. Bd3 c5 11. Rd1 cxd4 12. exd4 Nc6 13. Bg5 Be7 14. Bxf6 Bxf6 15. d5 exd5 16. Nxd5 Re8 17. Qc2 g6 18. Nxf6+ Qxf6 19. Qc3 Kg7 20. Bf1 Rad8 21. Qxf6+ Kxf6 22. Nd2 Nb4 23. Nc4 Rxd1 24. Rxd1 Re6 25. f3 Bd5 26. Kf2 Rc6 27. b3 b5 28. axb5 axb5 29. Na3 Rc3 30. Nxb5 Rxb3 31. Rd2 1/2-1/2

[Event "Oberliga Sued W 1920"]
[Site "Germany"]
[Date "2021.07.18"]
[Round "9.1"]
[White "Ovsejevitsch, Sergei"]
[Black "Bruehl, Andreas"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2582"]
[BlackElo "2335"]
[PlyCount "64"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Gau Algesheim"]
[BlackTeam "Altenkirchen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd2 Bf5 5. Nh4 Bg6 6. Qb3 Qb6 7. Qh3 Nbd7 8. Nxg6 fxg6 9. e3 c5 10. cxd5 cxd4 11. e4 Nc5 12. Bd3 e5 13. dxe6 Nxd3+ 14. Qxd3 Bb4 15. 0-0 0-0 16. Nf3 Rfe8 17. e5 Nd5 18. Nxd4 Rad8 19. Qe4 Bc5 20. Nb3 Bxf2+ 21. Kh1 Be3 22. Re1 Bxc1 23. Raxc1 Qxe6 24. Na5 Rd7 25. h3 g5 26. Rcd1 Nf6 27. Qa4 Rxd1 28. Qxd1 g4 29. Qb3 Qxb3 30. axb3 gxh3 31. gxh3 Nd7 32. Rd1 Nxe5 1/2-1/2

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.26"]
[Round "9"]
[White "Ovsejevitsch, Sergei"]
[Black "Korobov, Anton"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "2587"]
[BlackElo "2683"]
[PlyCount "57"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Nxe4 Bxe4 9. Ne1 Bxg2 10. Nxg2 d5 11. Qa4 Qd7 12. Qxd7 Nxd7 13. cxd5 exd5 14. Nf4 Nf6 15. Nd3 c5 16. dxc5 bxc5 17. Bg5 c4 18. Nf4 h6 19. Bxf6 Bxf6 20. Rac1 Rfd8 21. Rfd1 Bxb2 22. Rc2 c3 23. Nxd5 Rac8 24. e4 Kf8 25. Rd3 Rc4 26. Re3 Rdc8 27. Kf1 Ra4 28. Nxc3 Bxc3 29. Rexc3 1/2-1/2

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.25"]
[Round "8"]
[White "Ovsejevitsch, Sergei"]
[Black "Matviishen, Viktor"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2587"]
[BlackElo "2506"]
[PlyCount "103"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Kh1 a5 10. Bg5 h6 11. Bd2 Ne8 12. Ne1 f5 13. exf5 gxf5 14. f4 e4 15. Nc2 Nf6 16. Be3 b6 17. Bd4 Kh8 18. Ne3 c5 19. dxc6 Nxc6 20. Nb5 Nxd4 21. Nxd4 Ne8 22. Qd2 Bd7 23. Rad1 Nc7 24. Rf2 Na6 25. Nb5 Bxb5 26. cxb5 Nc5 27. Bc4 Rc8 28. b3 Qh4 29. g3 Qh5 30. Qe2 Qg6 31. Qf1 Nd3 32. Bxd3 exd3 33. Rfd2 Bd4 34. Rxd3 Bxe3 35. Rxe3 Rc2 36. Re2 Rfc8 37. Rde1 Qh5 38. Qf2 Rxe2 39. Rxe2 Rc5 40. Kg2 Kg8 41. Qe3 Qf7 42. a4 Kg7 43. Qd4+ Qf6 44. Re7+ Kg6 45. Qe3 Rc3 46. Qe1 Rc1 47. Qe6 Rc2+ 48. Kh3 Qxe6 49. Rxe6+ Kh5 50. Rxd6 Rc3 51. Rd5 Kg6 52. Kh4 1-0

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.24"]
[Round "7"]
[White "Polivanov, Anatoliy"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "2452"]
[BlackElo "2587"]
[PlyCount "86"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 h6 5. Bh4 c5 6. dxc5 e6 7. Bxf6 Nxf6 8. e4 Bxc5 9. Bb5+ Ke7 10. exd5 Nxd5 11. Nxd5+ Qxd5 12. Qe2 Bd7 13. Bxd7 Qxd7 14. Qe5 Qd6 15. Rd1 Qxe5+ 16. Nxe5 Rhd8 17. Ke2 Bd4 18. Nd3 Rac8 19. c3 Bb6 20. Nb4 h5 21. f3 g5 22. Rxd8 Rxd8 23. h3 f5 24. Nd3 h4 25. c4 Bd4 26. b4 e5 27. Rd1 Rg8 28. a3 Rc8 29. c5 Ke6 30. Nc1 b6 31. cxb6 axb6 32. Nb3 Kd5 33. a4 Rc4 34. Nxd4 exd4 35. Ra1 Rxb4 36. a5 bxa5 37. Rxa5+ Kc4 38. Rxf5 Rb2+ 39. Kf1 d3 40. Ke1 Rxg2 41. f4 g4 42. hxg4 h3 43. Kf1 d2 0-1

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.23"]
[Round "6"]
[White "Ovsejevitsch, Sergei"]
[Black "Martynkova, Olena"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2587"]
[BlackElo "2222"]
[PlyCount "171"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Kh1 Nd7 10. g4 a5 11. Rg1 Nc5 12. Be3 b6 13. Rg2 Kh8 14. Qd2 Ng8 15. Rag1 Nf6 16. Qc2 Bd7 17. b3 c6 18. Nd2 cxd5 19. cxd5 Rc8 20. Qb1 Ne8 21. a3 Bf6 22. Nf3 Ra8 23. a4 Nc7 24. h4 Rb8 25. Rh2 b5 26. g5 Bg7 27. Bxc5 dxc5 28. Nxb5 Nxb5 29. Bxb5 Bxb5 30. axb5 Rxb5 31. h5 Kg8 32. Nd2 a4 33. Qd3 Qd7 34. bxa4 Rb4 35. a5 Rd4 36. Qc2 Qb5 37. f3 Rb4 38. Nf1 Qxa5 39. Qg2 Rfb8 40. hxg6 hxg6 41. Qa2 Qb5 42. Ne3 Rb3 43. Qe2 Qb4 44. d6 Qd4 45. Nd5 Rb1 46. Rhg2 Qa4 47. Qc2 Rxg1+ 48. Kxg1 Qxc2 49. Rxc2 Rd8 50. Rxc5 Rxd6 51. Rc8+ Kh7 52. Rc7 Kg8 53. Rc8+ Kh7 54. Rc7 Kg8 55. Ra7 Rd8 56. Kf2 Rb8 57. Ra6 Rb2+ 58. Kg3 Rb1 59. Nf6+ Bxf6 60. gxf6 Kh7 61. Ra7 Kg8 62. Ra8+ Kh7 63. Rf8 g5 64. Rxf7+ Kg6 65. Rf8 Rb6 66. f7 Rf6 67. Re8 Rxf7 68. Rxe5 Rf4 69. Ra5 Kf6 70. Ra1 Kg6 71. Rg1 Kf6 72. Kf2 Rh4 73. Ra1 Rf4 74. Ke3 Kf7 75. Rg1 Kf6 76. Rg4 Rxg4 77. fxg4 Ke5 78. Kd3 Kf4 79. Kd4 Kxg4 80. e5 Kf5 81. Kd5 g4 82. e6 Kf6 83. Kd6 g3 84. e7 g2 85. e8Q g1Q 86. Qf8+ 1-0

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.22"]
[Round "5"]
[White "Buksa, Nataliya"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C75"]
[WhiteElo "2410"]
[BlackElo "2587"]
[PlyCount "47"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 Ng6 5. c3 a6 6. Ba4 d6 7. d4 Bd7 8. d5 Nb8 9. Bxd7+ Nxd7 10. c4 Be7 11. Be3 0-0 12. Nfd2 Bg5 13. Nc3 Bxe3 14. fxe3 c6 15. Rf3 cxd5 16. Nxd5 Nc5 17. Rh3 h6 18. Qh5 Qg5 19. Qe2 Ne6 20. Rf1 Qd8 21. Qh5 Qg5 22. Qe2 Qd8 23. Qh5 Qg5 24. Qe2 1/2-1/2

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.21"]
[Round "4"]
[White "Ovsejevitsch, Sergei"]
[Black "Osmak, Iulija"]
[Result "1/2-1/2"]
[ECO "E21"]
[WhiteElo "2587"]
[BlackElo "2438"]
[PlyCount "65"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. dxc5 Na6 6. Bd2 0-0 7. e3 Nxc5 8. Be2 Bxc3 9. Bxc3 Nfe4 10. Bb4 Qb6 11. Ba3 Qa5+ 12. Kf1 d6 13. Nd4 a6 14. f3 Nf6 15. Kf2 Rd8 16. Qc2 Bd7 17. Nb3 Nxb3 18. axb3 Qc7 19. Bb4 e5 20. Rhc1 Be6 21. Ba5 b6 22. Be1 a5 23. b4 axb4 24. Rxa8 Rxa8 25. Bxb4 Rc8 26. Qd2 d5 27. Rd1 e4 28. cxd5 Bxd5 29. f4 Bb3 30. Ra1 Nd5 31. Ra3 Bc4 32. Bd6 Qc6 33. Bg4 1/2-1/2

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.20"]
[Round "3"]
[White "Neverov, Valeriy"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2453"]
[BlackElo "2587"]
[PlyCount "144"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 0-0 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 exd5 9. Be2 c5 10. dxc5 bxc5 11. 0-0 Nc6 12. Qc2 Qb6 13. Rfd1 h6 14. Ne5 Nxe5 15. Bxe5 Rd8 16. Rd2 Be6 17. Rad1 Qa5 18. a3 Rac8 19. Bc3 Qb6 20. Qa4 Bd7 21. Qa6 c4 22. Qxb6 axb6 23. Rxd5 Be6 24. Rxd8+ Bxd8 25. g4 Bf6 26. Bxf6 gxf6 27. Rc1 b5 28. Kf1 Rb8 29. Ke1 b4 30. axb4 Rxb4 31. Rc2 f5 32. gxf5 Bxf5 33. Rd2 Kg7 34. Bd1 Be6 35. f3 Rb5 36. Rc2 Kf6 37. Rd2 Rc5 38. Rc2 Rb5 39. Kd2 Rb3 40. Ke2 Rb5 41. Kd2 Rb3 42. Ke2 Rb5 43. Kf2 Rh5 44. Ke1 Rb5 45. Be2 Rb3 46. Kf2 Ke5 47. h4 Kf6 48. e4 Ke5 49. Kg3 f5 50. Bxc4 f4+ 51. Kg2 Bxc4 52. Rxc4 Rxb2+ 53. Kg1 Rb1+ 54. Kg2 Rb2+ 55. Kf1 Rb1+ 56. Ke2 Rb2+ 57. Kd3 Rf2 58. Rc5+ Kd6 59. Rh5 Rxf3+ 60. Kd4 Ra3 61. Rxh6+ Ke7 62. Ke5 f3 63. Re6+ Kf7 64. Rf6+ Ke7 65. Re6+ Kf7 66. Rf6+ Ke7 67. Rb6 Ra5+ 68. Kf4 f2 69. Rb1 Rh5 70. Kg3 Re5 71. Kf3 Rh5 72. Kg3 Re5 1/2-1/2

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.19"]
[Round "2"]
[White "Ovsejevitsch, Sergei"]
[Black "Solovchuk, Alexey"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2587"]
[BlackElo "2301"]
[PlyCount "72"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. g3 Ba6 5. Nbd2 c5 6. Bg2 Bb7 7. e4 cxd4 8. Nxd4 Bc5 9. N4b3 Qc7 10. 0-0 0-0 11. Nxc5 bxc5 12. f4 d6 13. g4 Nc6 14. g5 Nd7 15. Nb1 Nd4 16. Nc3 f5 17. Be3 e5 18. fxe5 dxe5 19. exf5 Bxg2 20. Kxg2 Qb7+ 21. Kg1 Nb6 22. b3 Nxf5 23. Bxc5 Nh4 24. Rxf8+ Rxf8 25. Nd5 Nf3+ 26. Kg2 Nxc4 27. Ne7+ Kh8 28. Qd5 Ne3+ 29. Bxe3 Qxe7 30. Kh1 e4 31. Bc5 Qc7 32. Qd6 Qxd6 33. Bxd6 Rd8 34. Bf4 Kg8 35. Kg2 Rd5 36. Rc1 a5 1/2-1/2

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.18"]
[Round "1"]
[White "Mosesov, Danylo"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2391"]
[BlackElo "2587"]
[PlyCount "66"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 0-0 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 exd5 9. Bd3 c5 10. b3 Nc6 11. 0-0 Bg4 12. dxc5 bxc5 13. Bb5 Qb6 14. Bxc6 Bxf3 15. Qxf3 Qxc6 16. Rad1 Rfd8 17. Rd2 Rd7 18. Rfd1 Rad8 19. Be5 Qe6 20. Qf4 h6 21. Rd3 d4 22. exd4 cxd4 23. Qg3 Bf6 24. Bxf6 Qxf6 25. h3 Rd5 26. Qc7 R8d7 27. Qc8+ Kh7 28. Qc4 g5 29. Qb4 Kg7 30. Qc4 h5 31. Qc2 Re5 32. Qd2 Red5 33. b4 Qe6 1/2-1/2

[Event "Lublin 12th"]
[Site "Lublin"]
[Date "2020.11.10"]
[Round "7"]
[White "Ovsejevitsch, Sergei"]
[Black "Nasuta, Grzegorz"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2587"]
[BlackElo "2535"]
[PlyCount "61"]
[EventDate "2020.11.05"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "POL"]
[EventCategory "9"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nbd2 Bf5 5. Nh4 Be4 6. Qb3 Qb6 7. f3 Qxb3 8. Nxb3 Bc2 9. Kd2 Bxb3 10. axb3 e6 11. g3 c5 12. dxc5 Nc6 13. Ng2 0-0-0 14. Kc2 Bxc5 15. Nf4 Nb4+ 16. Kc3 dxc4 17. bxc4 Rd1 18. Nd3 Nxd3 19. exd3 Rd8 20. Kc2 R8xd3 21. Ra4 Nd7 22. Bg2 Rxh1 23. Bxh1 Rd6 24. f4 Nb8 25. b4 Bg1 26. h3 Ra6 27. Rxa6 Nxa6 28. Bd2 Nc7 29. g4 g6 30. Kd3 Ne8 31. f5 1/2-1/2

[Event "Lublin 12th"]
[Site "Lublin"]
[Date "2020.11.09"]
[Round "6"]
[White "Czernek, Tymon"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2359"]
[BlackElo "2587"]
[PlyCount "75"]
[EventDate "2020.11.05"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "POL"]
[EventCategory "9"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 a6 7. Bb3 Ba7 8. Nbd2 0-0 9. h3 h6 10. Re1 Re8 11. Nf1 Be6 12. Ng3 Bxb3 13. Qxb3 Qd7 14. Nf5 Kh7 15. Qc2 Ne7 16. N3h4 Ng6 17. Qd2 Nxh4 18. Nxh4 d5 19. Nf5 Ng8 20. Qe2 Ne7 21. Qh5 Qe6 22. g4 dxe4 23. Rxe4 Qg6 24. Qxg6+ Nxg6 25. h4 Rad8 26. h5 Nf8 27. Be3 Bb8 28. Rd1 Nd7 29. g5 hxg5 30. Bxg5 f6 31. Be3 g6 32. hxg6+ Kxg6 33. Nh4+ Kf7 34. Nf5 Kg6 35. Nh4+ Kf7 36. Nf5 Kg6 37. Nh4+ Kf7 38. Nf5 1/2-1/2

[Event "Lublin 12th"]
[Site "Lublin"]
[Date "2020.11.08"]
[Round "5"]
[White "Teclaf, Pawel"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2477"]
[BlackElo "2587"]
[PlyCount "60"]
[EventDate "2020.11.05"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "POL"]
[EventCategory "9"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 0-0 8. d4 Nf5 9. Nxc6 dxc6 10. c3 c5 11. dxc5 Qxd1 12. Rxd1 Bxc5 13. Nd2 Re8 14. Nf3 h6 15. Bf4 Bb6 16. h3 Be6 17. g4 Ne7 18. Nd4 Bd5 19. Nb5 Bf3 20. Rd3 Be4 21. Rd2 Ng6 22. Bxc7 Nh4 23. Be2 Bf3 24. Bxb6 Bxe2 25. Nd4 Bxg4 26. hxg4 axb6 27. f3 Ng6 28. Kf2 Re5 29. Nf5 h5 30. Kg3 hxg4 1/2-1/2

[Event "Lublin 12th"]
[Site "Lublin"]
[Date "2020.11.07"]
[Round "4"]
[White "Ovsejevitsch, Sergei"]
[Black "Dziuba, Marcin"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2587"]
[BlackElo "2596"]
[PlyCount "48"]
[EventDate "2020.11.05"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "POL"]
[EventCategory "9"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. e3 Nbd7 5. Bd3 dxc4 6. Bxc4 a6 7. a4 b6 8. 0-0 Bb7 9. Nc3 Bd6 10. b3 0-0 11. Bb2 Bb4 12. Qe2 Qe7 13. Bd3 c5 14. Na2 Ba5 15. e4 Rfd8 16. Ba3 Nf8 17. Rfd1 Ng6 18. g3 Nd7 19. Rac1 h6 20. h4 Rdc8 21. Bb1 Ngf8 22. Bd3 Ng6 23. Bb1 Ngf8 24. Bd3 Ng6 1/2-1/2

[Event "Lublin 12th"]
[Site "Lublin"]
[Date "2020.11.07"]
[Round "3"]
[White "Sliwicka, Alicja"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "C87"]
[WhiteElo "2311"]
[BlackElo "2587"]
[PlyCount "66"]
[EventDate "2020.11.05"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "POL"]
[EventCategory "9"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Nf6 6. Re1 Be7 7. Bxc6+ bxc6 8. d4 exd4 9. Nxd4 Bd7 10. Qf3 0-0 11. e5 Nd5 12. c4 dxe5 13. Rxe5 Bf6 14. Re4 Nb4 15. a3 Nd3 16. Nc3 Nc5 17. Be3 Nxe4 18. Nxe4 Re8 19. Rd1 Qe7 20. Nxf6+ Qxf6 21. Qxf6 gxf6 22. Nb3 Red8 23. Bd4 Bf5 24. Nc5 Rab8 25. b4 a5 26. g4 Bc2 27. Rd2 axb4 28. Rxc2 Rxd4 29. Rb2 Rxg4+ 30. Kf1 Rxc4 31. Nd7 Rd8 32. Nxf6+ Kg7 33. Nh5+ Kg6 0-1

[Event "Lublin 12th"]
[Site "Lublin"]
[Date "2020.11.06"]
[Round "2"]
[White "Ovsejevitsch, Sergei"]
[Black "Szpar, Milosz"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2587"]
[BlackElo "2449"]
[PlyCount "51"]
[EventDate "2020.11.05"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "POL"]
[EventCategory "9"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 exd4 8. Nxd4 Re8 9. f3 c6 10. Kh1 Nbd7 11. Bg5 Qb6 12. Nb3 a5 13. Na4 Qb4 14. Nc1 Nc5 15. Nd3 Nxd3 16. Bxd3 d5 17. exd5 cxd5 18. a3 Qf8 19. Nb6 Ra7 20. cxd5 Qd6 21. Qb3 Nd7 22. Rae1 Rxe1 23. Rxe1 Nxb6 24. Re8+ Bf8 25. Bh6 Nd7 26. Qc3 1-0

[Event "Lublin 12th"]
[Site "Lublin"]
[Date "2020.11.05"]
[Round "1"]
[White "Pacan Milej, Kosma"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2423"]
[BlackElo "2587"]
[PlyCount "95"]
[EventDate "2020.11.05"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "POL"]
[EventCategory "9"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. Qc2 0-0 9. Nf3 Re8 10. 0-0 Nf8 11. h3 Be6 12. Ne5 N6d7 13. Bxe7 Qxe7 14. f4 f6 15. Nf3 Nb6 16. Rae1 Bf7 17. Nh4 Rad8 18. Qf2 Nc8 19. Nf5 Qd7 20. g4 Nd6 21. Ng3 b6 22. Kh2 c5 23. g5 fxg5 24. fxg5 Qc7 25. Qf3 Nc4 26. Bxc4 dxc4 27. d5 Ng6 28. e4 Ne5 29. Qf4 Qd7 30. Re2 b5 31. Nd1 Bg6 32. Ne3 Nd3 33. Qg4 Qd6 34. Nef5 Bxf5 35. Rxf5 Re5 36. Kg1 Rde8 37. Rxe5 Qxe5 38. Nf5 b4 39. g6 Qf6 40. gxh7+ Kh8 41. Qg3 g6 42. Nh4 Kxh7 43. Nf3 Rf8 44. Rg2 Kh8 45. Nh4 Kh7 46. Nf3 Kh8 47. Nh4 Kh7 48. Nf3 1/2-1/2

[Event "POL-ch rapid"]
[Site "Trzcianka"]
[Date "2020.10.18"]
[Round "1"]
[White "Chowaniec, Artur"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "B56"]
[WhiteElo "1543"]
[BlackElo "2587"]
[PlyCount "74"]
[EventDate "2020.10.18"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 Ng4 7. Qd2 Nxe3 8. Qxe3 g6 9. Bc4 Bg7 10. Nde2 0-0 11. 0-0 Na5 12. Bb3 e6 13. Rad1 Qe7 14. Nb5 Rd8 15. c3 a6 16. Nbd4 Bd7 17. Qd3 Rac8 18. Kh1 Be8 19. f4 e5 20. Nf3 Bb5 21. Qc2 exf4 22. Nxf4 Nxb3 23. Nd5 Qf8 24. Qxb3 Bxf1 25. Rxf1 h6 26. Qxb7 Rb8 27. Qxa6 Rxb2 28. Nh4 Qe8 29. Qd3 Qe6 30. h3 Rdb8 31. Nb4 Re8 32. a4 Qxe4 33. Qxe4 Rxe4 34. Nf3 Bxc3 35. Nd5 Bg7 36. Re1 Rxe1+ 37. Nxe1 Rb1 0-1

[Event "POL-ch rapid"]
[Site "Trzcianka"]
[Date "2020.10.18"]
[Round "8"]
[White "Grabarczyk, Miroslaw"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "2391"]
[BlackElo "2587"]
[PlyCount "77"]
[EventDate "2020.10.18"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 d5 8. cxd5 exd5 9. Bf4 Na6 10. Ne5 h6 11. Qa4 Qe8 12. Qxe8 Rfxe8 13. Rfd1 Bf8 14. Rac1 g5 15. Be3 c5 16. f4 gxf4 17. gxf4 cxd4 18. Bxd4 Nc7 19. Ne4 Nxe4 20. Rxc7 Re7 21. Rdc1 Rae8 22. Bxe4 dxe4 23. Ng4 Bg7 24. Nf6+ Bxf6 25. Bxf6 Re6 26. Bh4 Rg6+ 27. Bg3 Bd5 28. Rc8 Rxc8 29. Rxc8+ Kg7 30. Kf2 Rc6 31. Rxc6 Bxc6 32. Ke3 Kf6 33. Bh4+ Ke6 34. Kd4 f5 35. Be1 a5 36. Bh4 a4 37. Bd8 Bd5 38. a3 b5 39. e3 1/2-1/2

[Event "POL-ch rapid"]
[Site "Trzcianka"]
[Date "2020.10.18"]
[Round "7"]
[White "Ovsejevitsch, Sergei"]
[Black "Budrewicz, Krzysztof"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2587"]
[BlackElo "2289"]
[PlyCount "69"]
[EventDate "2020.10.18"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 Na6 7. Be3 e5 8. d5 Nh5 9. g3 f5 10. exf5 Bxf5 11. Ng5 Nf6 12. g4 Bd7 13. Nge4 Qe7 14. 0-0 Nxe4 15. Nxe4 Rf4 16. Bxf4 exf4 17. Bf3 b6 18. Re1 Qh4 19. Rb1 h5 20. gxh5 g5 21. Kh1 g4 22. h6 Be5 23. Rg1 Kh8 24. Rxg4 Bxg4 25. Bxg4 f3 26. h3 Rg8 27. Qxf3 Qxh6 28. b4 Nb8 29. Be6 Rf8 30. Qg4 Qh7 31. Rg1 Na6 32. Ng5 Rxf2 33. Nf7+ Rxf7 34. Bxf7 Qxf7 35. Qh4+ 1-0

[Event "POL-ch rapid"]
[Site "Trzcianka"]
[Date "2020.10.18"]
[Round "2"]
[White "Ovsejevitsch, Sergei"]
[Black "Grzesik, Gracjan"]
[Result "1/2-1/2"]
[ECO "E14"]
[WhiteElo "2587"]
[BlackElo "2152"]
[PlyCount "140"]
[EventDate "2020.10.18"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. e3 Be7 5. Bd3 0-0 6. 0-0 b6 7. Nc3 Bb7 8. cxd5 exd5 9. Rb1 c5 10. b3 Ne4 11. Bb2 f5 12. dxc5 bxc5 13. Ne2 Bf6 14. Qc2 Nc6 15. a3 Qd6 16. Nf4 Ne7 17. Rfd1 Rad8 18. h4 g6 19. b4 cxb4 20. axb4 Rc8 21. Qb3 Nc3 22. Bxc3 Rxc3 23. Qa2 a6 24. Ng5 Rfc8 25. Nge6 Be5 26. Nc5 Rb8 27. Nxb7 Rxb7 28. Bxa6 Rbc7 29. Nxd5 Nxd5 30. Qxd5+ Qxd5 31. Rxd5 Rc1+ 32. Rd1 Rxd1+ 33. Rxd1 Bc3 34. b5 Ba5 35. g3 Kg7 36. Kg2 Rc2 37. Rb1 Bb6 38. Kf3 Kf6 39. Bb7 h6 40. Bc6 g5 41. hxg5+ hxg5 42. Rb3 f4 43. gxf4 gxf4 44. exf4 Rxf2+ 45. Kg4 Rf1 46. Rg3 Bc7 47. Rf3 Rg1+ 48. Kh3 Rb1 49. Bd7 Rb4 50. Kg4 Rd4 51. Bc6 Rb4 52. Kg3 Rd4 53. Rf1 Rb4 54. Kg4 Bb8 55. Bd7 Rd4 56. Bc6 Rb4 57. Rd1 Bxf4 58. Kf3 Bc7 59. Rd7 Bb6 60. Ke2 Ke6 61. Rb7 Bg1 62. Rd7 Bb6 63. Kd3 Bg1 64. Kc3 Rb1 65. Rd3 Ke7 66. Kc4 Ke6 67. Be4 Ke5 68. Bh7 Rc1+ 69. Kb4 Rb1+ 70. Kc4 Rc1+ 1/2-1/2

[Event "POL-ch rapid"]
[Site "Trzcianka"]
[Date "2020.10.18"]
[Round "5"]
[White "Ovsejevitsch, Sergei"]
[Black "Klimkowski, Jan"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2587"]
[BlackElo "2298"]
[PlyCount "137"]
[EventDate "2020.10.18"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Qc2 0-0 6. a3 Bxc3+ 7. Qxc3 Bb7 8. g3 d6 9. Bg2 Nbd7 10. 0-0 a5 11. b3 Re8 12. Bb2 Ne4 13. Qc2 f5 14. Ne1 Qb8 15. Nd3 d5 16. Rfd1 a4 17. b4 dxc4 18. Qxc4 Bd5 19. Qc1 Qb7 20. Nf4 b5 21. Nxd5 exd5 22. Qc2 Nb6 23. Bc1 Nc4 24. Bf4 c6 25. Bh3 g6 26. Rd3 Qe7 27. Re1 Qf6 28. Bg2 Re7 29. h4 Qf7 30. Qc1 Rae8 31. h5 gxh5 32. f3 Nf6 33. e3 h4 34. gxh4 Nh5 35. Bg5 Re6 36. e4 fxe4 37. fxe4 dxe4 38. d5 exd3 39. dxe6 Rxe6 40. Rf1 Qe8 41. Qd1 Ng3 42. Qg4 Ne2+ 43. Kh1 Ne5 44. Qh3 d2 45. Bxd2 Rg6 46. Re1 Nc4 47. Bf4 Qf7 48. Bh2 Re6 49. Rf1 Qg6 50. Qf3 Re8 51. Qxc6 Qxc6 52. Bxc6 Re3 53. Bxb5 Nxa3 54. Bxa4 Re4 55. Bb3+ Kg7 56. Re1 Rxb4 57. Bd1 Rxh4 58. Bxe2 Nc4 59. Bf1 Nd6 60. Bg2 Nf5 61. Kg1 Rg4 62. Kf2 Ra4 63. Be4 Kf6 64. Re2 Nd4 65. Rb2 Ne6 66. Bc6 Rc4 67. Bd5 Rd4 68. Bg2 Nf4 69. Ke3 1-0

[Event "POL-ch rapid"]
[Site "Trzcianka"]
[Date "2020.10.18"]
[Round "9"]
[White "Ovsejevitsch, Sergei"]
[Black "Krasenkow, Michal"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2587"]
[BlackElo "2597"]
[PlyCount "92"]
[EventDate "2020.10.18"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e3 Nxc3 6. dxc3 Qxd1+ 7. Kxd1 Bf5 8. Nh4 Bd7 9. e4 Nc6 10. Kc2 0-0-0 11. Nf3 e6 12. Bf4 Na5 13. Be2 Bc6 14. Nd2 b5 15. f3 Bd6 16. Be3 Rd7 17. b3 Rhd8 18. a4 bxa4 19. bxa4 Kc7 20. Nc4 Nxc4 21. Bxc4 Rb8 22. h3 h5 23. Rhb1 Rxb1 24. Kxb1 Rd8 25. Kc2 Re8 26. Bb5 f5 27. Bxc6 Kxc6 28. Kd3 Rb8 29. Ra2 Rb1 30. exf5 exf5 31. Kc4 f4 32. Bf2 g5 33. Re2 Ra1 34. Kb3 c4+ 35. Kxc4 Rxa4+ 36. Kb3 Ra5 37. Bd4 Rb5+ 38. Kc4 a5 39. Re6 Rd5 40. Re8 Rf5 41. Ra8 Bc7 42. Ra6+ Kb7 43. Ra7+ Kb8 44. Ra6 Kb7 45. Ra7+ Kb8 46. Ra6 Kb7 1/2-1/2

[Event "POL-ch rapid"]
[Site "Trzcianka"]
[Date "2020.10.18"]
[Round "6"]
[White "Piesik, Piotr"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "A17"]
[WhiteElo "2396"]
[BlackElo "2587"]
[PlyCount "93"]
[EventDate "2020.10.18"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 e6 5. c4 Be7 6. Nc3 0-0 7. d3 d5 8. cxd5 exd5 9. Nd4 Qc8 10. e4 dxe4 11. dxe4 g6 12. e5 Nh5 13. Nd5 Bxd5 14. Bxd5 c6 15. Bf3 Rd8 16. Be3 Bc5 17. Qa4 Bxd4 18. Bxd4 b5 19. Qb4 Ng7 20. Be3 Nf5 21. Bg5 Rd4 22. Qc3 b4 23. Qc5 Nd7 24. Qxc6 Qxc6 25. Bxc6 Rc8 26. Bxd7 Rxd7 27. Rac1 Re8 28. Bf6 Ne7 29. Bxe7 Rexe7 30. f4 f6 31. exf6 Re2 32. Rf2 Rxf2 33. Kxf2 Rd2+ 34. Ke3 Rxb2 35. Rc8+ Kf7 36. Rc7+ Kxf6 37. Rxa7 Rxh2 38. g4 h6 39. Ra6+ Kf7 40. f5 gxf5 41. gxf5 b3 42. axb3 Rh3+ 43. Kf4 Rxb3 44. Rxh6 Rb1 45. Rh7+ Kf6 46. Rh6+ Kf7 47. Rh7+ 1/2-1/2

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.23"]
[Round "9"]
[White "Kucza, Karol"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "2277"]
[BlackElo "2587"]
[PlyCount "20"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. d4 Nf6 7. d5 Nb8 8. Bxd7+ Nbxd7 9. Re1 Be7 10. c4 0-0 1/2-1/2

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.22"]
[Round "8"]
[White "Ovsejevitsch, Sergei"]
[Black "Pultinevicius, Paulius"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2587"]
[BlackElo "2519"]
[PlyCount "19"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. dxc3 Qxd1+ 7. Kxd1 f6 8. Be3 e5 9. Nd2 Nd7 10. Nb3 1/2-1/2

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.21"]
[Round "7"]
[White "Sabuk, Piotr"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "E18"]
[WhiteElo "2377"]
[BlackElo "2587"]
[PlyCount "72"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 0-0 6. Nc3 b6 7. cxd5 exd5 8. 0-0 Bb7 9. Bf4 Na6 10. Ne5 Re8 11. Rc1 h6 12. Qa4 Bf8 13. Rfd1 Qe7 14. Bh3 g5 15. Be3 c5 16. Nd7 Nxd7 17. Bxd7 Red8 18. Bc6 Bxc6 19. Qxc6 Qe6 20. Qa4 Nc7 21. Kg2 Ne8 22. Qa6 Nd6 23. dxc5 Nf5 24. c6 d4 25. c7 Qc6+ 26. Kg1 Qxc7 27. Na4 Qe5 28. Bd2 b5 29. Ba5 Re8 30. Bc7 Qxe2 31. Qa5 Qf3 32. Qxb5 Re2 33. Rf1 Ne3 34. Qc6 Qxc6 35. Rxc6 Nxf1 36. Kxf1 d3 0-1

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.20"]
[Round "6"]
[White "Ovsejevitsch, Sergei"]
[Black "Zochowski, Kacper"]
[Result "1-0"]
[ECO "E54"]
[WhiteElo "2587"]
[BlackElo "2278"]
[PlyCount "67"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. e3 0-0 6. Bd3 c5 7. 0-0 cxd4 8. exd4 dxc4 9. Bxc4 Nbd7 10. Bg5 Nb6 11. Bb3 Be7 12. Re1 Bd7 13. Qd3 Bc6 14. Bc2 g6 15. Bh6 Re8 16. Ne5 Nbd5 17. Qh3 Qc8 18. Rac1 Nxc3 19. bxc3 Nh5 20. c4 Bb4 21. Red1 Qc7 22. Bb3 Bd6 23. Re1 Bb4 24. Re2 Bf8 25. Qe3 Rac8 26. Bxf8 Rxf8 27. Ree1 Qa5 28. Ng4 Qd8 29. Qe5 Ng7 30. Nf6+ Kh8 31. Rc3 Qc7 32. Rh3 Nh5 33. Rxh5 gxh5 34. Qxh5 1-0

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.19"]
[Round "5"]
[White "Lukasiewicz, Krzysztof"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2343"]
[BlackElo "2587"]
[PlyCount "100"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. Nf3 Nc6 5. Nbd2 Bg4 6. c3 Qb6 7. dxc5 Qxc5 8. Qb3 Bc8 9. Be2 g6 10. 0-0 Bg7 11. Rac1 0-0 12. c4 d4 13. exd4 Nxd4 14. Nxd4 Qxd4 15. Be3 Qe5 16. Nf3 Qc7 17. h3 b6 18. Nd4 Bb7 19. c5 bxc5 20. Nb5 Qb8 21. Rxc5 Be4 22. Qa4 a6 23. Nc3 Qxb2 24. Bxa6 Bd3 25. Bc1 Qb8 26. Bxd3 Rxa4 27. Nxa4 e6 28. Rc4 Nd5 29. Bd2 Qa7 30. Bc2 Bd4 31. Bb3 Rd8 32. Bg5 f6 33. Bd2 Kg7 34. Nc3 Nxc3 35. Bxc3 Bxc3 36. Rxc3 e5 37. Rfc1 Kh6 38. Rc6 f5 39. R1c5 Rd2 40. Rc7 Qb6 41. Bg8 e4 42. h4 Rd1+ 43. Kh2 Qb8 44. Be6 Rd6 45. Bc8 Rd2 46. Kg3 Rxa2 47. Kh3 Rxf2 48. Be6 Rf1 49. Bc4 Rh1+ 50. Kg3 Qd8 0-1

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.18"]
[Round "4"]
[White "Ovsejevitsch, Sergei"]
[Black "Kowalczyk, Rafal"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2587"]
[BlackElo "2268"]
[PlyCount "105"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. Nc3 Bb7 5. Qd3 d5 6. cxd5 Nxd5 7. e4 Nxc3 8. bxc3 c5 9. Qb5+ Nc6 10. Rb1 Be7 11. Be3 cxd4 12. cxd4 0-0 13. Be2 Nb8 14. Qd3 Nd7 15. 0-0 Rc8 16. Rfc1 Nf6 17. Nd2 Qd7 18. f3 Rxc1+ 19. Rxc1 Rc8 20. Rxc8+ Qxc8 21. Qc4 Qxc4 22. Nxc4 Nd7 23. Kf2 Bb4 24. Bf4 f6 25. Nd6 e5 26. Nxb7 exf4 27. Bc4+ Kf8 28. Nd8 g5 29. Ke2 Nb8 30. h4 h6 31. Ne6+ Ke7 32. Ng7 Nc6 33. Nf5+ Kd8 34. Bb5 Ne7 35. Nxh6 gxh4 36. Ng4 f5 37. Ne5 fxe4 38. fxe4 Bc3 39. Kd3 Ba1 40. Nf3 Kc7 41. Nxh4 a6 42. Be8 Kd8 43. Bh5 Nc6 44. Nf5 b5 45. e5 a5 46. Bf3 Kd7 47. Bxc6+ Kxc6 48. Ne7+ Kd7 49. Nd5 a4 50. Nxf4 b4 51. Ne2 Bb2 52. Kc2 Ba1 53. Kb1 1-0

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.17"]
[Round "3"]
[White "Praczukowski, Stanislaw"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "C71"]
[WhiteElo "2109"]
[BlackElo "2587"]
[PlyCount "70"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. d4 exd4 7. Nxd4 Nge7 8. c4 g6 9. Nc3 Bg7 10. Be3 Ne5 11. Bxd7+ Qxd7 12. b3 0-0 13. Rc1 f5 14. f3 Rae8 15. exf5 gxf5 16. Qd2 c6 17. Nde2 b5 18. cxb5 axb5 19. Rfd1 N7g6 20. Bf2 Nf7 21. Rc2 Bh6 22. Qd4 Re5 23. f4 Re7 24. Rcd2 Rfe8 25. a3 d5 26. Qb4 Nd6 27. Ng3 Nxf4 28. Bc5 Re1+ 29. Rxe1 Rxe1+ 30. Kf2 Qe6 31. Qd4 Rc1 32. Nce2 Nxe2 33. Rxe2 Ne4+ 34. Nxe4 fxe4 35. g3 Qf5+ 0-1

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.16"]
[Round "2"]
[White "Ovsejevitsch, Sergei"]
[Black "Fiedorek, Michal"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2587"]
[BlackElo "2212"]
[PlyCount "50"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. d5 a5 8. Be3 Ng4 9. Bg5 f6 10. Bd2 f5 11. exf5 gxf5 12. 0-0 e4 13. Ne1 Ne5 14. f3 exf3 15. Nxf3 Nbd7 16. Kh1 Nxf3 17. gxf3 Ne5 18. Qc1 Qh4 19. Bf4 Bd7 20. Rg1 Kh8 21. Qd2 a4 22. Nb5 Bxb5 23. cxb5 Ng6 24. Bg5 Qd4 25. Rac1 Rae8 1/2-1/2

[Event "Rubinstein Memorial 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.15"]
[Round "1"]
[White "Betkowski, Andrzej"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2044"]
[BlackElo "2587"]
[PlyCount "64"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Nd2 cxd4 5. exd4 Qb6 6. Nb3 Ne4 7. Bf4 Nc6 8. Nf3 g6 9. Be2 Bg7 10. 0-0 0-0 11. c3 Bf5 12. Nfd2 Rad8 13. Nxe4 dxe4 14. Qc1 e5 15. dxe5 Nxe5 16. Be3 Qc7 17. Nd4 Bg4 18. f3 exf3 19. Nxf3 Rfe8 20. Bb5 Nxf3+ 21. gxf3 Bd7 22. Bxd7 Rxd7 23. Kg2 Rd3 24. Bf4 Re2+ 25. Rf2 Qc6 26. Rxe2 Qxf3+ 27. Kg1 Qxe2 28. Qe1 Qg4+ 29. Bg3 h5 30. Kh1 Qf3+ 31. Kg1 Bh6 32. Qe8+ Kh7 0-1

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.13"]
[Round "9"]
[White "Ovsejevitsch, Sergei"]
[Black "Pajeken, Jakob Leon"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2602"]
[BlackElo "2342"]
[PlyCount "55"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 Qe7 7. e4 d6 8. d3 h6 9. h3 Be6 10. Be2 b6 11. 0-0 0-0 12. Re1 Nh7 13. d4 Na5 14. c5 dxc5 15. Nxe5 cxd4 16. cxd4 c5 17. Ba3 Rfc8 18. Nf3 Ng5 19. d5 Bd7 20. Nxg5 Qxg5 21. Bf1 Bxh3 22. Bc1 Qg6 23. Re3 Bg4 24. Rg3 h5 25. f3 Qd6 26. Kf2 c4 27. Qc3 f5 28. exf5 1-0

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.12"]
[Round "8"]
[White "Gavrilescu, David"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2473"]
[BlackElo "2602"]
[PlyCount "90"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 0-0 10. Be3 Bg4 11. h3 Bh5 12. Qc2 Bg6 13. Qb3 Ne7 14. 0-0 c6 15. Bd3 Nd2 16. Nxd2 Bxd3 17. Rfe1 Bg6 18. Na4 Ba5 19. Nc5 Bxd2 20. Bxd2 b6 21. Nb7 Qd7 22. Nd6 Nf5 23. Nxf5 Bxf5 24. Rac1 Rfc8 25. Bb4 c5 26. dxc5 a5 27. c6 Rxc6 28. Rxc6 Qxc6 29. Bd2 d4 30. Rc1 Qe6 31. Qxe6 Bxe6 32. Rc6 Bxa2 33. Rxb6 h6 34. Rd6 Rb8 35. Rxd4 Rxb2 36. Bxa5 Be6 37. Bc3 Rc2 38. Rd3 Kh7 39. Bd2 Bf5 40. Rd4 Be6 41. g4 h5 42. gxh5 Bxh3 43. Kh2 Be6 44. Kg3 Rc4 45. Rxc4 Bxc4 1/2-1/2

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.12"]
[Round "7"]
[White "Ovsejevitsch, Sergei"]
[Black "Schoppen, Casper"]
[Result "1/2-1/2"]
[ECO "E21"]
[WhiteElo "2602"]
[BlackElo "2479"]
[PlyCount "111"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 0-0 5. Bg5 c5 6. Rc1 cxd4 7. Nxd4 h6 8. Bh4 d5 9. e3 e5 10. Nc2 Bxc3+ 11. bxc3 dxc4 12. Qxd8 Rxd8 13. Na3 Nc6 14. Nxc4 Be6 15. f3 Rac8 16. a3 Bxc4 17. Bxc4 Na5 18. Be2 Rc5 19. Kf2 g5 20. Bg3 Nh5 21. Rhd1 Rxd1 22. Bxd1 Nxg3 23. hxg3 Nc4 24. a4 e4 25. Bc2 Nd6 26. Bxe4 Nxe4+ 27. fxe4 Rc4 28. a5 Rxe4 29. Rb1 Re7 30. g4 Kg7 31. Kf3 Kg6 32. Rb5 Kf6 33. c4 Rc7 34. e4 a6 35. Rf5+ Ke6 36. c5 Rd7 37. Ke3 Rd1 38. Rf3 Ra1 39. Rh3 Rxa5 40. Rxh6+ Ke5 41. c6 Ra3+ 42. Ke2 bxc6 43. Rxc6 Kxe4 44. Rf6 Ra2+ 45. Kf1 a5 46. Rxf7 Rd2 47. Ke1 Rd5 48. Ke2 a4 49. Ra7 Rd4 50. g3 Rb4 51. Ra5 Kd4 52. Kd2 Rb2+ 53. Kc1 Rg2 54. Rxa4+ Ke3 55. Ra5 Rxg3 56. Rxg5 1/2-1/2

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.11"]
[Round "6"]
[White "Olsen, Filip Boe"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2332"]
[BlackElo "2602"]
[PlyCount "140"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 Bg4 6. c3 e6 7. Qb3 Qc8 8. Ne5 Nxe5 9. dxe5 c4 10. Qa4+ Nd7 11. b3 Be7 12. bxc4 0-0 13. cxd5 Nb6 14. Qc2 Bf5 15. e4 Nxd5 16. exf5 Nxf4 17. g3 Qc6 18. Qe4 Qxe4+ 19. Nxe4 exf5 20. gxf4 fxe4 21. Bg2 f5 22. exf6 Bxf6 23. Ke2 Bxc3 24. Rac1 Ba5 25. Bxe4 Rxf4 26. Bxb7 Re8+ 27. Kf1 Re5 28. Rc2 Rb4 29. Ba8 Bb6 30. h3 Bc5 31. h4 Be7 32. Kg2 Rg4+ 33. Kf3 h5 34. Rd1 Rf5+ 35. Ke2 Bxh4 36. Kf1 Kh7 37. Bd5 Rf6 38. Rd3 Ra4 39. f3 Bg3 40. Kg2 Be5 41. Be4+ Kh6 42. Rd5 Bf4 43. Kh3 g6 44. Rdc5 Kg7 45. Kh4 Rd4 46. Rd5 Rxd5 47. Bxd5 Rd6 48. Rc5 Kh6 49. Kh3 Be3 50. Rb5 a6 51. Ra5 Bd2 52. Rc5 Bb4 53. Rc4 Rxd5 54. Rxb4 Rd3 55. Kg3 Ra3 56. Rb2 g5 57. Kg2 Kg6 58. Rc2 Ra4 59. Kg3 Ra5 60. Rh2 Ra3 61. Rc2 g4 62. Rc6+ Kf7 63. Kh4 gxf3 64. Rc2 Ra5 65. a4 Rxa4+ 66. Kxh5 Kf6 67. Rc8 Rf4 68. Rc6+ Ke5 69. Rc1 f2 70. Rf1 Kf6 0-1

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.10"]
[Round "4"]
[White "Baskin, Robert"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "2385"]
[BlackElo "2602"]
[PlyCount "86"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. d4 Nf6 7. Bxc6 Bxc6 8. Re1 Be7 9. Nc3 exd4 10. Nxd4 0-0 11. Nf5 Bd7 12. Nxe7+ Qxe7 13. Bg5 Qe5 14. Bxf6 Qxf6 15. e5 Qg5 16. Qd3 Bc6 17. Qg3 Qxg3 18. hxg3 dxe5 19. Rxe5 f6 20. Re7 Rf7 21. Rxf7 Kxf7 22. Rd1 h5 23. f3 Re8 24. Kf2 Re7 25. Rd8 Rd7 26. Rxd7+ Bxd7 27. Ke3 Ke6 28. Kd4 b6 29. b4 Bc6 30. Nd1 Be8 31. Ne3 Bg6 32. a4 Kd6 33. Nc4+ Kc6 34. Ne3 Be8 35. c4 Bd7 36. g4 hxg4 37. fxg4 Kd6 38. b5 axb5 39. axb5 c5+ 40. bxc6 Bxc6 41. Nf5+ Ke6 42. Nxg7+ Kf7 43. Nf5 Bxg2 1/2-1/2

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.10"]
[Round "5"]
[White "Ovsejevitsch, Sergei"]
[Black "Kollars, Dmitrij"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2602"]
[BlackElo "2592"]
[PlyCount "78"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. Qc2 Bb7 6. a3 Bxc3+ 7. Qxc3 0-0 8. g3 c5 9. dxc5 bxc5 10. Bg2 Nc6 11. 0-0 Qe7 12. Rd1 Rfd8 13. Be3 a5 14. Ne5 Rdc8 15. Bxc6 Bxc6 16. Bg5 h6 17. Bxf6 Qxf6 18. Nxd7 Qxc3 19. bxc3 Ba4 20. Rd3 Ra6 21. Rb1 Bc2 22. Rb8 Rxb8 23. Nxb8 Bxd3 24. Nxa6 Bxe2 25. f4 Bxc4 26. Nxc5 Kf8 27. Kf2 Ke7 28. Ke3 Bd5 29. Kd4 Kd6 30. c4 Bc6 31. Nb3 a4 32. c5+ Kd7 33. Nc1 f6 34. Nd3 Bb5 35. Nb4 Be2 36. h4 Bf3 37. Ke3 Bg4 38. Kd4 Bf3 39. Na2 Bd1 1/2-1/2

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.09"]
[Round "3"]
[White "Lagunow, Raphael"]
[Black "Ovsejevitsch, Sergei"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2389"]
[BlackElo "2602"]
[PlyCount "73"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nbd2 d5 8. exd5 Nxd5 9. 0-0 0-0 10. a3 Be7 11. Re1 Bg4 12. h3 Bh5 13. g4 Bg6 14. Ne4 Re8 15. Nc5 Bxc5 16. dxc5 Rxe1+ 17. Qxe1 Qd7 18. Qd1 Rd8 19. Bxd5 Qxd5 20. Qxd5 Rxd5 21. Be3 a5 22. Rc1 f6 23. Kh2 Kf7 24. Rc3 Be4 25. Nd2 Bd3 26. Kg3 Ke6 27. f3 Ba6 28. f4 g6 29. Nf3 Rd1 30. Rc2 Kd5 31. Rd2+ Rxd2 32. Bxd2 a4 33. Bc3 Ke6 34. Nd4+ Nxd4 35. Bxd4 f5 36. Be5 c6 37. g5 1/2-1/2

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.09"]
[Round "2"]
[White "Ovsejevitsch, Sergei"]
[Black "Ernst, Sipke"]
[Result "1/2-1/2"]
[ECO "D43"]
[WhiteElo "2602"]
[BlackElo "2554"]
[PlyCount "140"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 dxc4 5. Qa4+ c6 6. Qxc4 b5 7. Qd3 Nbd7 8. e4 b4 9. Na4 c5 10. e5 Nd5 11. Be2 Bb7 12. Nxc5 Bxc5 13. dxc5 Rc8 14. 0-0 Nxc5 15. Qd4 0-0 16. Qg4 f5 17. exf6 Qxf6 18. Qg5 a5 19. Qxf6 gxf6 20. Nd4 Rfd8 21. Rd1 Kf7 22. Nb3 a4 23. Nxc5 Rxc5 24. Bf3 Rb5 25. Bh6 Kg6 26. Bd2 a3 27. bxa3 Nc3 28. Bxc3 Rxd1+ 29. Bxd1 bxc3 30. Rc1 Be4 31. Bb3 Rg5 32. Bc2 Bxc2 33. Rxc2 Rc5 34. f3 Rb5 35. Rxc3 Rb2 36. Rc6 Rxa2 37. Ra6 Kg5 38. Ra4 h5 39. h4+ Kg6 40. Kh2 e5 41. Ra6 Ra1 42. a4 Ra2 43. a5 Ra4 44. Kg3 Ra2 45. Ra8 Kg7 46. a6 Kh7 47. a7 Kg7 48. Kh2 f5 49. Re8 Rxa7 50. Rxe5 Kf6 51. Re8 Kg7 52. Kg3 Ra4 53. Re6 Rb4 54. Kh3 Ra4 55. Rb6 Rc4 56. Rb2 Ra4 57. g3 Ra3 58. Kg2 Rc3 59. Kf2 Ra3 60. Ke2 Kf6 61. Rb6+ Kf7 62. Rd6 Rb3 63. Rd3 Rb6 64. Rd7+ Kg6 65. Ke3 Ra6 66. Rd8 Ra3+ 67. Kf4 Ra4+ 68. Ke5 Ra5+ 69. Ke6 Ra6+ 70. Ke7 Ra7+ 1/2-1/2

[Event "Hamburg New Chess Brains 4th"]
[Site "Hamburg"]
[Date "2020.03.08"]
[Round "1"]
[White "Parvanyan, Ashot"]
[Black "Ovsejevitsch, Sergei"]
[Result "1-0"]
[ECO "E18"]
[WhiteElo "2447"]
[BlackElo "2602"]
[PlyCount "105"]
[EventDate "2020.03.08"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[EventCategory "9"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 0-0 5. 0-0 b6 6. Ne5 d5 7. cxd5 exd5 8. d4 Bb7 9. Nc3 Na6 10. Bf4 h6 11. Rc1 Re8 12. h4 Bf8 13. e3 c5 14. Nb5 Qe7 15. a3 Ne4 16. Qe2 Qe6 17. Kh2 Red8 18. Bh3 Qe8 19. h5 Nd6 20. Nxd6 Bxd6 21. Qf3 Nc7 22. Nd3 Ba6 23. Rfd1 Bxd3 24. Rxd3 c4 25. Rd2 Qe7 26. Bg2 b5 27. Re1 Ne6 28. Bxd6 Qxd6 29. Qf5 Rab8 30. e4 dxe4 31. Bxe4 Ng5 32. Bb1 Qd7 33. Re3 Qxf5 34. Bxf5 Rb6 35. d5 Rbd6 36. f4 Nh7 37. Be4 Nf6 38. Bf3 Kf8 39. Re5 Nd7 40. Re3 Nb6 41. Re1 Re8 42. Rxe8+ Kxe8 43. g4 Ke7 44. g5 Rd8 45. Kg3 Kd6 46. Re2 Na4 47. Kg4 a5 48. Kf5 b4 49. axb4 axb4 50. gxh6 gxh6 51. Kf6 Rd7 52. Re8 Nxb2 53. Rc8 1-0

[Event "Oberliga Sued W 1920"]
[Site "Germany"]
[Date "2020.03.01"]
[Round "7.1"]
[White "Ovsejevitsch, Sergei"]
[Black "Carow, Johannes"]
[Result "1/2-1/2"]
[ECO "A31"]
[WhiteElo "2602"]
[BlackElo "2433"]
[PlyCount "154"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nc2 Nf6 6. Nc3 e6 7. Rb1 Bc5 8. e3 0-0 9. Be2 d5 10. 0-0 dxc4 11. Na3 Rd8 12. Qa4 a6 13. Qxc4 Ne5 14. Qh4 Qc7 15. Ne4 Be7 16. Nxf6+ Bxf6 17. Qe4 Bd7 18. Bd2 Bc6 19. Qc2 Rac8 20. Rbd1 b5 21. f4 Nd7 22. Bf3 Qb7 23. Bxc6 Rxc6 24. Qb1 Nb6 25. Bc1 Rdc8 26. Qe4 Na4 27. Nc2 Qc7 28. Nd4 Rc4 29. Qf3 Bxd4 30. exd4 Nb6 31. f5 Nd5 32. Bg5 Qd7 33. fxe6 fxe6 34. Bh4 Rc2 35. Rf2 Rxf2 36. Qxf2 Qf7 37. Qxf7+ Kxf7 38. Rd2 Rc1+ 39. Kf2 Nb4 40. a3 Nd5 41. Kf3 a5 42. Ke4 a4 43. Ke5 Rc6 44. Rf2+ Ke8 45. Ke4 h6 46. Bg3 Rc1 47. Be5 Re1+ 48. Kd3 Re3+ 49. Kc2 g6 50. Bd6 Rb3 51. Bf4 b4 52. Bc1 h5 53. Rf3 bxa3 54. bxa3 Rb6 55. Bh6 Rc6+ 56. Kd2 Rb6 57. Kc2 Nc7 58. Bf8 Rc6+ 59. Bc5 Na6 60. Rc3 Kd7 61. Kd3 Rc8 62. Ke4 g5 63. Rc4 Rb8 64. Rxa4 Nxc5+ 65. dxc5 Rb2 66. Ra7+ Kc6 67. Rh7 Rxg2 68. Rxh5 Kxc5 69. Kf3 Ra2 70. Rxg5+ Kd6 71. h4 Rxa3+ 72. Kg4 Ra1 73. Kh5 Rh1 74. Rg4 Ke7 75. Kg6 Kf8 76. Kf6 e5 77. Kxe5 Kf7 1/2-1/2

[Event "Oberliga Sued W 1920"]
[Site "Germany"]
[Date "2020.01.19"]
[Round "5.1"]
[White "Mayer, Frank"]
[Black "Ovsejevitsch, Sergei"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "2315"]
[BlackElo "2604"]
[PlyCount "50"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 e5 2. e3 Nf6 3. Nc3 Bb4 4. Nge2 0-0 5. a3 Be7 6. Qc2 Re8 7. d4 Bf8 8. dxe5 Rxe5 9. Nf4 a5 10. b3 Na6 11. Bb2 Re8 12. Be2 c6 13. 0-0 Nc5 14. Rab1 Ne6 15. Bf3 Nxf4 16. exf4 d6 17. Rbd1 Bd7 18. h3 h6 19. g4 h5 20. g5 Nh7 21. Bxh5 Nxg5 22. fxg5 Qxg5+ 23. Bg4 Bxg4 24. hxg4 Qxg4+ 25. Kh2 Re5 0-1

