[Event "Milan Crespi op-B 34th"]
[Site "Milan"]
[Date "2013.12.08"]
[Round "7"]
[White "Costisanu, Romica"]
[Black "Duin, Roelf Jan"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1483"]
[PlyCount "82"]
[EventDate "2013.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ITA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 0-0 6. Bg5 h6 7. Bd2 d6 8. h3 a6 9. b4 Ba7 10. Qb3 b5 11. Bd5 Nxd5 12. exd5 Ne7 13. c4 Nf5 14. g4 Nh4 15. Ke2 Qf6 16. d4 Nxf3 17. Qxf3 Qxf3+ 18. Kxf3 Bxd4 19. Bc3 Bxc3 20. Nxc3 bxc4 21. a4 Bb7 22. Rhd1 f5 23. Ke3 fxg4 24. hxg4 Rf4 25. f3 Raf8 26. Rf1 Rd4 27. Rad1 Rxd1 28. Rxd1 Rf6 29. b5 Rf8 30. a5 axb5 31. Nxb5 Rc8 32. Nc3 Ra8 33. Ra1 Ba6 34. Ra2 Rb8 35. Ra3 Rb3 36. Rxb3 cxb3 37. f4 exf4+ 38. Kxf4 b2 39. Kf5 b1Q+ 40. Nxb1 Bd3+ 41. Kf4 Bxb1 0-1

[Event "Milan Crespi op-B 34th"]
[Site "Milan"]
[Date "2013.12.08"]
[Round "6"]
[White "Duin, Roelf Jan"]
[Black "Frignani, Alessandro"]
[Result "1-0"]
[ECO "C21"]
[BlackElo "1369"]
[PlyCount "57"]
[EventDate "2013.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ITA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 d6 5. Nf3 Nf6 6. Nxc3 Be6 7. Qb3 Bxc4 8. Qxc4 h6 9. Qb5+ Nbd7 10. Qxb7 Be7 11. Nd4 Qb8 12. Qxb8+ Rxb8 13. Nc6 Rb7 14. 0-0 Nc5 15. b4 Na6 16. Nd5 Nxd5 17. exd5 Kd7 18. Rb1 Nb8 19. b5 a6 20. a4 Bf6 21. Be3 Re8 22. g3 Re4 23. Nxb8+ Rxb8 24. bxa6 Rxb1 25. Rxb1 Rxa4 26. a7 c6 27. Rb7+ Kc8 28. Rb8+ Kc7 29. a8Q 1-0

[Event "Milan Crespi op-B 34th"]
[Site "Milan"]
[Date "2013.12.07"]
[Round "4"]
[White "Duin, Roelf Jan"]
[Black "Costanza, Calogero"]
[Result "1-0"]
[ECO "B00"]
[BlackElo "1598"]
[PlyCount "37"]
[EventDate "2013.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ITA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 b6 2. d4 e6 3. Nc3 Bb7 4. Nf3 Bb4 5. Bd3 Ne7 6. 0-0 Ng6 7. Re1 0-0 8. e5 d6 9. Bd2 dxe5 10. dxe5 Nc6 11. Ng5 Bxc3 12. bxc3 Ncxe5 13. Rxe5 Nxe5 14. Bxh7+ Kh8 15. Qh5 g6 16. Bxg6+ Kg7 17. Nxe6+ fxe6 18. Qh6+ Kf6 19. Bg5# 1-0

[Event "Milan Crespi op-B 34th"]
[Site "Milan"]
[Date "2013.12.07"]
[Round "5"]
[White "Versari, Marino"]
[Black "Duin, Roelf Jan"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "1600"]
[PlyCount "69"]
[EventDate "2013.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ITA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 c6 4. Nf3 Bg4 5. e3 e6 6. h3 Bh5 7. cxd5 cxd5 8. a3 a6 9. Be2 Bd6 10. 0-0 0-0 11. b4 Nbd7 12. Bb2 Rc8 13. Rc1 Nb6 14. Nd2 Bg6 15. Na4 Bc7 16. Nc5 Qd6 17. Nf3 Rb8 18. Ne5 Ne4 19. Nxe4 Bxe4 20. f4 f6 21. Ng4 Rbc8 22. Qe1 Bb8 23. Qg3 f5 24. Rxc8 Nxc8 25. Ne5 Rf6 26. Rc1 Qd8 27. Qe1 Bxe5 28. dxe5 Rg6 29. g4 h5 30. g5 Rxg5+ 31. fxg5 Qxg5+ 32. Bg4 fxg4 33. Rxc8+ Kh7 34. Qg3 gxh3 35. Qxg5 1-0

[Event "Milan Crespi op-B 34th"]
[Site "Milan"]
[Date "2013.12.06"]
[Round "3"]
[White "Pavlidis, Pavlos"]
[Black "Duin, Roelf Jan"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "1459"]
[PlyCount "39"]
[EventDate "2013.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ITA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nf3 Nf6 4. Nc3 Bg7 5. Bg5 0-0 6. Qd2 Nbd7 7. 0-0-0 a6 8. h3 c5 9. dxc5 Nxc5 10. Bxf6 Bxf6 11. e5 Bg7 12. exd6 Bxc3 13. Qxc3 Ne4 14. Qe3 Nxd6 15. Qh6 f6 16. Bc4+ Kh8 17. Nh4 Bf5 18. g4 Bxc2 19. Kxc2 Qe8 20. Bb3 1-0

[Event "Milan Crespi op-B 34th"]
[Site "Milan"]
[Date "2013.12.05"]
[Round "2"]
[White "Duin, Roelf Jan"]
[Black "Lamera, Giuseppe"]
[Result "1/2-1/2"]
[ECO "B08"]
[BlackElo "1494"]
[PlyCount "62"]
[EventDate "2013.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ITA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 d6 2. d4 c6 3. Nf3 g6 4. Bc4 Nf6 5. Nc3 Bg7 6. 0-0 0-0 7. Re1 Bg4 8. h3 Bxf3 9. Qxf3 e5 10. dxe5 dxe5 11. Bg5 Nbd7 12. Rad1 Qc7 13. Re2 h6 14. Bh4 g5 15. Bg3 Rad8 16. Red2 a5 17. a4 Kh8 18. Ne2 Qb6 19. Bb3 Nc5 20. Bxe5 Rxd2 21. Rxd2 Nfxe4 22. Bxg7+ Kxg7 23. Rd1 Qc7 24. Nd4 Qe5 25. Qg4 Nf6 26. Qf3 Kg6 27. Bc4 Rd8 28. c3 Qf4 29. Bd3+ Nxd3 30. Qxd3+ Qe4 31. Qxe4+ Nxe4 1/2-1/2

[Event "Milan Crespi op-B 34th"]
[Site "Milan"]
[Date "2013.12.04"]
[Round "1"]
[White "Bejo, Armand"]
[Black "Duin, Roelf Jan"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "1609"]
[PlyCount "23"]
[EventDate "2013.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ITA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bc5 5. c3 d6 6. d4 Bb6 7. d5 a6 8. Ba4 Nxe4 9. dxc6 Bxf2+ 10. Rxf2 b5 11. Bb3 Nxf2 12. Kxf2 1-0

