[Event "Sofia MGU op 21st"]
[Site "Sofia"]
[Date "2011.01.09"]
[Round "4.5"]
[White "Arsov, Arsen"]
[Black "Kostov, Nikolai"]
[Result "1/2-1/2"]
[ECO "C45"]
[BlackElo "2005"]
[PlyCount "51"]
[EventDate "2011.01.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Qg6 7. Nd2 Bb6 8. g3 Nge7 9. Bg2 d6 10. 0-0 0-0 11. Nc4 Ne5 12. Nxb6 axb6 13. h3 f5 14. exf5 Bxf5 15. Nxf5 Qxf5 16. f4 N5c6 17. Qd2 Kh8 18. b3 d5 19. Rf2 Rad8 20. Raf1 Qf6 21. g4 d4 22. cxd4 Nxd4 23. Bxd4 Rxd4 24. Qc1 c6 25. Qe3 Qd6 26. Re2 1/2-1/2

[Event "Sofia MGU op 21st"]
[Site "Sofia"]
[Date "2011.01.09"]
[Round "5.6"]
[White "Ignatov, Radoslav"]
[Black "Arsov, Arsen"]
[Result "1-0"]
[ECO "C14"]
[PlyCount "85"]
[EventDate "2011.01.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. a3 a6 8. b4 b6 9. Nf3 c5 10. b5 a5 11. Na4 c4 12. g3 Qd8 13. Bg2 Ra7 14. 0-0 Nf8 15. Nh4 h6 16. Qg4 g6 17. f4 h5 18. Qe2 Nbd7 19. Nf3 Nh7 20. h4 Ndf8 21. Rad1 Bd7 22. Rb1 Rb7 23. Nc3 Qe7 24. Ra1 Ra7 25. Rfb1 Bc8 26. Na4 Qc7 27. Nd2 Nd7 28. Nc3 Bb7 29. Kf2 Nhf8 30. a4 Qd8 31. Rh1 Qe7 32. Rhb1 Ba8 33. Kf1 Bb7 34. Kg1 Ba8 35. Kh2 Bb7 36. Nd1 Ba8 37. Ne3 Bb7 38. Bf3 Ba8 39. Kg2 Qd8 40. Ra3 Nh7 41. Rc3 0-0 42. Kh3 f5 43. Bg2 1-0

[Event "Sofia MGU op 21st"]
[Site "Sofia"]
[Date "2011.01.09"]
[Round "6.7"]
[White "Kalchev, Sava"]
[Black "Arsov, Arsen"]
[Result "1-0"]
[ECO "D96"]
[WhiteElo "1682"]
[PlyCount "57"]
[EventDate "2011.01.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 dxc4 7. Qxc4 Be6 8. Qb4 Qb6 9. Qa3 h6 10. e4 g5 11. Be3 Ng4 12. Bd2 Bxd4 13. Nxd4 Qxd4 14. 0-0-0 Qd6 15. Qxd6 exd6 16. Be1 Ke7 17. h3 Ne5 18. Be2 Nbd7 19. g3 Ng6 20. Bd2 f6 21. f4 Bf7 22. h4 gxh4 23. f5 Nge5 24. Rxh4 h5 25. Rdh1 Rag8 26. g4 Nxg4 27. Bxg4 Rxg4 28. Rxg4 hxg4 29. Rxh8 1-0

[Event "Sofia MGU op 21st"]
[Site "Sofia"]
[Date "2011.01.08"]
[Round "3.4"]
[White "Arsov, Arsen"]
[Black "Burdarev, Evgeni"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "2012"]
[PlyCount "66"]
[EventDate "2011.01.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nf6 5. Nf3 Bb4+ 6. c3 Be7 7. Bg5 0-0 8. Nbd2 Re8 9. 0-0 h6 10. Bh4 Bg4 11. h3 Be6 12. Ne5 Nbd7 13. f4 Nf8 14. f5 Bc8 15. g4 c5 16. Ndf3 Qb6 17. b3 Ne4 18. Be1 Bf6 19. Kg2 Nd7 20. Nxd7 Bxd7 21. Be2 Re7 22. Rc1 Rae8 23. Rc2 Bc6 24. h4 Qc7 25. Bd3 b6 26. Qc1 c4 27. bxc4 dxc4 28. Bxc4 Nd6 29. Bg3 Qd7 30. Bd3 Re3 31. g5 hxg5 32. hxg5 Bxg5 33. Qd2 Rxf3 0-1

