[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.12"]
[Round "1.1"]
[White "Pijpers, Arthur"]
[Black "Kuipers, Stefan"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2474"]
[BlackElo "2435"]
[Annotator "ChessBase"]
[PlyCount "81"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. e5 {[%emt 0:00:25]} Bf5 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:00:12]} e6 {[%emt 0:00:00]} 5. Be2 {[%emt 0:00:03]} Ne7 {[%emt 0:00:01]} 6. O-O {[%emt 0:00:59]} Ng6 {[%emt 0:00:16]} 7. Be3 {[%emt 0:04:39]} Nd7 {[%emt 0:00:30]} 8. Nbd2 {[%emt 0:02:50]} f6 {[%emt 0:00:17]} 9. exf6 {[%emt 0:07:39]} Qxf6 {[%emt 0:00:21]} 10. Ne1 {[%emt 0:12:50]} h5 {[%emt 0:13:46]} 11. Bxh5 {[%emt 0:12:02]} Qh4 {[%emt 0:05:56]} 12. Bxg6+ {[%emt 0:00:05]} Bxg6 {[%emt 0:00:05]} 13. h3 {[%emt 0:02:04]} Bd6 {[%emt 0:10:16]} 14. Ndf3 {[%emt 0:08:57]} Qf6 {[%emt 0:01:30]} 15. Qd2 {[%emt 0:08:14]} c5 {[%emt 0:20:03]} 16. dxc5 {[%emt 0:07:38]} Nxc5 {[%emt 0:02:04]} 17. Bd4 {[%emt 0:06:46]} Qf5 {[%emt 0:03:47]} 18. Qg5 {[%emt 0:05:02]} Qxg5 {[%emt 0:07:49]} 19. Nxg5 {[%emt 0:00:02]} e5 {[%emt 0:00:08]} 20. Bxc5 {[%emt 0:01:19]} Bxc5 {[%emt 0:00:07]} 21. Nd3 {[%emt 0:00:04]} Bxd3 {[%emt 0:01:10]} 22. cxd3 {[%emt 0:00:02]} Ke7 {[%emt 0:00:58]} 23. Nf3 {[%emt 0:02:29]} Bd6 {[%emt 0:00:24]} 24. Rfe1 {[%emt 0:02:11]} Kf6 {[%emt 0:01:09]} 25. Rac1 {[%emt 0:02:26]} Rac8 {[%emt 0:01:46]} 26. Kf1 {[%emt 0:01:48]} Rc6 {[%emt 0:02:01]} 27. Rxc6 {[%emt 0:02:23]} bxc6 {[%emt 0:00:06]} 28. d4 {[%emt 0:00:10]} e4 {[%emt 0:02:06]} 29. Nd2 {[%emt 0:00:04]} c5 {[%emt 0:00:40]} 30. f3 {[%emt 0:05:09]} Bf4 {[%emt 0:00:48]} 31. Rd1 {[%emt 0:02:46]} cxd4 {[%emt 0:09:22]} 32. fxe4 {[%emt 0:00:11]} Bxd2 {[%emt 0:00:49]} 33. Rxd2 {[%emt 0:00:06]} Ke5 {[%emt 0:00:06]} 34. exd5 {[%emt 0:00:04]} Kxd5 {[%emt 0:00:09]} 35. Ke1 {[%emt 0:02:38]} Rc8 {[%emt 0:04:09]} 36. Rf2 {[%emt 0:01:25]} Ke4 {[%emt 0:03:42]} 37. Re2+ {[%emt 0:01:31]} Kd3 {[%emt 0:00:07]} 38. Rd2+ {[%emt 0:00:15]} Ke3 {[%emt 0:00:06]} 39. Re2+ {[%emt 0:00:05]} Kd3 {[%emt 0:00:04]} 40. Re7 {[%emt 0:00:50]} Rc2 {[%emt 0:02:10]} 41. Rxg7 {[%emt 0:19:02]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.12"]
[Round "1.3"]
[White "Pruijssers, Roeland"]
[Black "Van der Wiel, John T.H."]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2534"]
[BlackElo "2380"]
[Annotator "ChessBase"]
[PlyCount "42"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:10]} 5. Nc3 {[%emt 0:00:02]} a6 {[%emt 0:00:22]} 6. Be3 {[%emt 0:00:10]} e5 {[%emt 0:00:55]} 7. Nb3 {[%emt 0:00:09]} Be6 {[%emt 0:00:08]} 8. Qd2 {[%emt 0:00:07]} Nbd7 {[%emt 0:00:40]} 9. O-O-O {[%emt 0:00:13]} b5 {[%emt 0:01:41]} 10. f3 {[%emt 0:00:59]} Rc8 {[%emt 0:00:53]} 11. g4 {[%emt 0:07:38]} Nb6 {[%emt 0:01:42]} 12. g5 {[%emt 0:21:48]} Nh5 {[%emt 0:01:15]} 13. Qf2 {[%emt 0:13:15]} Rxc3 {[%emt 0:07:19]} 14. bxc3 {[%emt 0:00:13]} Na4 {[%emt 0:00:28]} 15. Qe1 {[%emt 0:03:48]} Qd7 {[%emt 0:49:20]} 16. Rd5 {[%emt 0:12:23]} Bxd5 {[%emt 0:05:40]} 17. exd5 {[%emt 0:00:47]} Be7 {[%emt 0:00:08]} 18. c4 {[%emt 0:01:05]} O-O {[%emt 0:04:28]} 19. Na5 {[%emt 0:16:25]} Nf4 {[%emt 0:04:47]} 20. h4 {[%emt 0:01:32]} Bd8 {[%emt 0:00:45]} 21. Nc6 {[%emt 0:09:13]} Bb6 {[%emt 0:04:32]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.12"]
[Round "1.4"]
[White "Schekachikhin, Maksim"]
[Black "Das, Arghyadip"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2415"]
[BlackElo "2439"]
[Annotator "ChessBase"]
[PlyCount "78"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} c6 {[%emt 0:00:19]} 3. Nf3 {[%emt 0:00:30]} dxc4 {[%emt 0:00:20]} 4. e3 {[%emt 0:04:11]} b5 {[%emt 0:03:25]} 5. a4 {[%emt 0:06:29]} e6 {[%emt 0:00:45]} 6. axb5 {[%emt 0:07:42]} cxb5 {[%emt 0:00:06]} 7. b3 {[%emt 0:00:05]} a5 {[%emt 0:05:38]} 8. bxc4 {[%emt 0:01:19]} Bb4+ {[%emt 0:07:43]} 9. Bd2 {[%emt 0:04:14]} Bxd2+ {[%emt 0:01:49]} 10. Nbxd2 {[%emt 0:03:10]} b4 {[%emt 0:09:26]} 11. c5 {[%emt 0:11:04]} Nf6 {[%emt 0:03:04]} 12. Bb5+ {[%emt 0:15:45]} Bd7 {[%emt 0:01:54]} 13. Qa4 {[%emt 0:01:55]} Nd5 {[%emt 0:16:33]} 14. Ne5 {[%emt 0:08:23]} O-O {[%emt 0:03:22]} 15. Nxd7 {[%emt 0:06:58]} Nc3 {[%emt 0:00:21]} 16. Qb3 {[%emt 0:01:52]} Nxd7 {[%emt 0:00:49]} 17. Bc6 {[%emt 0:01:09]} Ra6 {[%emt 0:12:27]} 18. Bb7 {[%emt 0:01:53]} Ra7 {[%emt 0:00:29]} 19. Bf3 {[%emt 0:01:33]} e5 {[%emt 0:03:19]} 20. c6 {[%emt 0:14:42]} Nb6 {[%emt 0:00:47]} 21. dxe5 {[%emt 0:03:42]} Qe7 {[%emt 0:01:09]} 22. O-O {[%emt 0:01:48]} a4 {[%emt 0:05:57]} 23. Qb2 {[%emt 0:00:13]} Rd8 {[%emt 0:00:46]} 24. Ne4 {[%emt 0:01:42]} Nc4 {[%emt 0:03:33]} 25. Qc2 {[%emt 0:00:09]} Nxe4 {[%emt 0:00:53]} 26. Bxe4 {[%emt 0:00:37]} Nd2 {[%emt 0:01:25]} 27. Rfd1 {[%emt 0:01:14]} b3 {[%emt 0:00:27]} 28. Bxh7+ {[%emt 0:00:44]} Kh8 {[%emt 0:01:30]} 29. Qc3 {[%emt 0:00:21]} Kxh7 {[%emt 0:00:47]} 30. Rxd2 {[%emt 0:00:07]} Rxd2 {[%emt 0:00:04]} 31. Qxd2 {[%emt 0:00:05]} Qxe5 {[%emt 0:00:05]} 32. Rb1 {[%emt 0:01:25]} a3 {[%emt 0:05:20]} 33. Qd3+ {[%emt 0:00:25]} g6 {[%emt 0:00:32]} 34. c7 {[%emt 0:00:41]} a2 {[%emt 0:01:27]} 35. c8=Q {[%emt 0:00:28]} axb1=Q+ {[%emt 0:00:10]} 36. Qxb1 {[%emt 0:00:05]} Ra1 {[%emt 0:00:12]} 37. Qcc1 {[%emt 0:00:38]} b2 {[%emt 0:01:04]} 38. Qd1 {[%emt 0:00:28]} Rxb1 {[%emt 0:00:10]} 39. Qxb1 {[%emt 0:00:08]} Qc3 {[%emt 0:00:04]} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.12"]
[Round "1.5"]
[White "Sengupta, Deep"]
[Black "Stefansson, Hannes"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "2558"]
[BlackElo "2562"]
[Annotator "ChessBase"]
[PlyCount "74"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:00:00]} a6 {[%emt 0:00:08]} 4. Ba4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:11]} 5. O-O {[%emt 0:00:00]} b5 {[%emt 0:00:12]} 6. Bb3 {[%emt 0:00:02]} Bc5 {[%emt 0:00:18]} 7. a4 {[%emt 0:01:38]} Rb8 {[%emt 0:00:10]} 8. c3 {[%emt 0:00:08]} d6 {[%emt 0:00:19]} 9. d4 {[%emt 0:00:05]} Bb6 {[%emt 0:00:27]} 10. axb5 {[%emt 0:00:13]} axb5 {[%emt 0:00:11]} 11. Qd3 {[%emt 0:00:05]} O-O {[%emt 0:11:56]} 12. Bg5 {[%emt 0:00:22]} h6 {[%emt 0:09:51]} 13. Bxf6 {[%emt 0:19:22]} Qxf6 {[%emt 0:00:34]} 14. Qxb5 {[%emt 0:00:42]} Ne7 {[%emt 0:12:26]} 15. Qd3 {[%emt 0:14:57]} Ng6 {[%emt 0:01:08]} 16. g3 {[%emt 0:00:53]} Bh3 {[%emt 0:02:22]} 17. Re1 {[%emt 0:01:03]} Rfe8 {[%emt 0:11:52]} 18. Nbd2 {[%emt 0:01:56]} exd4 {[%emt 0:00:51]} 19. cxd4 {[%emt 0:00:10]} c5 {[%emt 0:00:46]} 20. Nc4 {[%emt 0:31:13]} cxd4 {[%emt 0:00:57]} 21. Nxb6 {[%emt 0:00:03]} Rxb6 {[%emt 0:00:11]} 22. Ra7 {[%emt 0:00:27]} Be6 {[%emt 0:04:53]} 23. Bxe6 {[%emt 0:00:03]} Rxe6 {[%emt 0:01:42]} 24. Nxd4 {[%emt 0:09:03]} Rxb2 {[%emt 0:00:26]} 25. Rf1 {[%emt 0:01:21]} Re7 {[%emt 0:07:29]} 26. Ra8+ {[%emt 0:03:41]} Kh7 {[%emt 0:01:42]} 27. Nf5 {[%emt 0:00:10]} Re6 {[%emt 0:00:59]} 28. Kg2 {[%emt 0:10:44]} Ne7 {[%emt 0:05:23]} 29. Nd4 {[%emt 0:01:38]} Re5 {[%emt 0:00:09]} 30. Nf3 {[%emt 0:00:19]} Rc5 {[%emt 0:03:58]} 31. Rb1 {[%emt 0:03:34]} Rcc2 {[%emt 0:03:20]} 32. e5+ {[%emt 0:01:29]} Qf5 {[%emt 0:00:14]} 33. Qxf5+ {[%emt 0:00:02]} Nxf5 {[%emt 0:00:07]} 34. Rxb2 {[%emt 0:00:01]} Rxb2 {[%emt 0:00:17]} 35. g4 {[%emt 0:01:19]} Ne3+ {[%emt 0:00:19]} 36. Kg3 {[%emt 0:00:01]} Nf1+ {[%emt 0:02:55]} 37. Kg2 {[%emt 0:00:02]} Ne3+ {[%emt 0:00:48]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.13"]
[Round "2.1"]
[White "Kuipers, Stefan"]
[Black "Stefansson, Hannes"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2435"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "36"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,36,31,0,8,7,8,8,9,0,0,0,7,0,-7,0,0,-3,-10,-5,-4,-5,0,-10,0,-4,0,-3,-8]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 O-O 6. Bg5 h6 {The position is equal. C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 7. Bh4 Be7 8. Nbd2 d6 9. Bb3 (9. a4 Nh5 10. g3 Nf6 11. Bxf6 Bxf6 12. h4 Ne7 13. Nh2 d5 14. Bb3 {1-0 (47) Anand,V (2771)-Ragger,M (2686) Batumi 2018}) 9... Na5 10. Bc2 c5 11. Nf1 Be6 12. Ne3 Ng4 $146 {[#] ...Nxe3 is the strong threat.} ({Predecessor:} 12... Nc6 13. O-O d5 14. Re1 {0-1 (38) Rauch,U (2148)-Tschann,S (2254) Sasbach 2018}) 13. Bg3 Nxe3 14. fxe3 b5 15. O-O b4 16. Ba4 bxc3 17. bxc3 Rb8 18. Qc2 Qc7 {Accuracy: White = 50%, Black = 84%.} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.13"]
[Round "2.2"]
[White "Das, Arghyadip"]
[Black "Sengupta, Deep"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2439"]
[BlackElo "2558"]
[Annotator "ChessBase"]
[PlyCount "41"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 Nc6 6. Bb5 Bd7 7. Nxc6 bxc6 8. Bd3 Qc7 9. c4 Nf6 10. Qe2 Bd6 11. h3 O-O 12. O-O Rab8 13. b3 Be5 14. Rb1 dxe4 15. Nxe4 Nxe4 16. Bxe4 c5 17. Bb2 Bxb2 18. Rxb2 Bc6 19. Rd1 Bxe4 20. Qxe4 Rfd8 21. Rbd2 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.13"]
[Round "2.3"]
[White "Van der Wiel, John T.H."]
[Black "Schekachikhin, Maksim"]
[Result "1/2-1/2"]
[ECO "B18"]
[WhiteElo "2380"]
[BlackElo "2415"]
[Annotator "NA"]
[PlyCount "69"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. Nd2 {[%emt 0:00:09]} dxe4 {[%emt 0:00:16]} 4. Nxe4 {[%emt 0:00:11]} Bf5 {[%emt 0:00:18]} 5. Ng3 {[%emt 0:00:23]} Bg6 {[%emt 0:00:16]} 6. Nh3 {[%emt 0:01:50]} Nf6 {[%emt 0:01:15]} 7. Nf4 {[%emt 0:01:13]} Nbd7 {[%emt 0:02:30]} 8. h4 {[%emt 0:15:22]} e5 {[%emt 0:02:59]} 9. dxe5 {[%emt 0:02:14]} Qa5+ {[%emt 0:08:07]} 10. c3 {[%emt 0:01:54]} Qxe5+ {[%emt 0:01:47]} 11. Qe2 {[%emt 0:07:51]} Bc5 {[%emt 0:13:06]} 12. Nxg6 {[%emt 0:06:04]} hxg6 {[%emt 0:00:41]} 13. Bf4 {[%emt 0:02:19]} Qxe2+ {[%emt 0:05:13]} 14. Bxe2 {[%emt 0:00:20]} O-O-O {[%emt 0:04:10]} 15. Bg5 {[%emt 0:12:50]} Rde8 {[%emt 0:07:03]} 16. O-O {[%emt 0:05:21]} Nd5 {[%emt 0:14:15]} 17. Rad1 {[%emt 0:12:42]} f6 {[%emt 0:07:24]} 18. Bc1 {[%emt 0:01:56]} Rxh4 {[%emt 0:02:07]} 19. Bf3 {[%emt 0:02:10]} Nc7 {[%emt 0:05:43]} 20. Rfe1 {[%emt 0:08:34]} Rxe1+ {[%emt 0:04:09]} 21. Rxe1 {[%emt 0:00:12]} Ne5 {[%emt 0:01:37]} 22. Be4 {[%emt 0:01:50]} Nd5 {[%emt 0:07:10]} 23. Bc2 {[%emt 0:03:34]} Nf4 {[%emt 0:04:48]} 24. Re4 {[%emt 0:03:55]} g5 {[%emt 0:00:32]} 25. Nf5 {[%emt 0:03:00]} Rg4 {[%emt 0:01:09]} 26. Bxf4 {[%emt 0:03:02]} gxf4 {[%emt 0:01:25]} 27. Kf1 {[%emt 0:01:24]} g6 {[%emt 0:02:09]} 28. f3 {[%emt 0:02:57]} Nxf3 {[%emt 0:02:10]} 29. gxf3 {[%emt 0:00:03]} Rg1+ {[%emt 0:00:06]} 30. Ke2 {[%emt 0:00:08]} Rg2+ {[%emt 0:00:39]} 31. Kd3 {[%emt 0:00:24]} gxf5 {[%emt 0:00:51]} 32. Rxf4 {[%emt 0:00:29]} Rg5 {[%emt 0:00:39]} 33. Kc4 {[%emt 0:00:44]} Be3 {[%emt 0:00:16]} 34. Rxf5 {[%emt 0:00:19]} Rg2 {[%emt 0:01:30]} 35. Kb3 {[%emt 0:00:32]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.13"]
[Round "2.4"]
[White "Lalith Babu M R"]
[Black "Pruijssers, Roeland"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2580"]
[BlackElo "2534"]
[Annotator "ChessBase"]
[PlyCount "95"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:03:16]} 2. c4 {[%emt 0:00:00]} g6 {[%emt 0:00:12]} 3. Nc3 {[%emt 0:00:00]} d5 {[%emt 0:00:06]} 4. cxd5 {[%emt 0:00:00]} Nxd5 {[%emt 0:00:07]} 5. e4 {[%emt 0:00:00]} Nxc3 {[%emt 0:00:13]} 6. bxc3 {[%emt 0:00:02]} Bg7 {[%emt 0:00:06]} 7. Bb5+ {[%emt 0:00:04]} c6 {[%emt 0:11:35]} 8. Ba4 {[%emt 0:00:05]} O-O {[%emt 0:00:06]} 9. Ne2 {[%emt 0:00:05]} c5 {[%emt 0:03:42]} 10. O-O {[%emt 0:00:31]} b6 {[%emt 0:00:46]} 11. Be3 {[%emt 0:20:37]} Ba6 {[%emt 0:05:57]} 12. Rb1 {[%emt 0:10:20]} Qc8 {[%emt 0:16:34]} 13. Re1 {[%emt 0:11:39]} Nc6 {[%emt 0:07:00]} 14. Nf4 {[%emt 0:04:00]} e6 {[%emt 0:10:43]} 15. d5 {[%emt 0:04:19]} Ne5 {[%emt 0:03:50]} 16. dxe6 {[%emt 0:01:14]} fxe6 {[%emt 0:00:25]} 17. Qd6 {[%emt 0:01:07]} Bc4 {[%emt 0:01:00]} 18. Bb3 {[%emt 0:00:42]} Kf7 {[%emt 0:02:42]} 19. Nh3 {[%emt 0:12:13]} Kg8 {[%emt 0:17:02]} 20. Ng5 {[%emt 0:04:18]} Re8 {[%emt 0:01:33]} 21. Bf4 {[%emt 0:04:56]} Bxb3 {[%emt 0:00:08]} 22. axb3 {[%emt 0:00:20]} Nc6 {[%emt 0:02:18]} 23. Qd3 {[%emt 0:00:45]} h6 {[%emt 0:01:22]} 24. Nf3 {[%emt 0:00:19]} Rd8 {[%emt 0:01:04]} 25. Qe3 {[%emt 0:09:10]} g5 {[%emt 0:00:22]} 26. Bg3 {[%emt 0:00:12]} Qa6 {[%emt 0:01:01]} 27. c4 {[%emt 0:01:07]} Nb4 {[%emt 0:03:57]} 28. Red1 {[%emt 0:00:54]} Qa2 {[%emt 0:00:11]} 29. Ne5 {[%emt 0:02:36]} Bxe5 {[%emt 0:01:48]} 30. Bxe5 {[%emt 0:00:08]} Rd3 {[%emt 0:00:05]} 31. Qe1 {[%emt 0:01:19]} Rad8 {[%emt 0:00:01]} 32. h4 {[%emt 0:00:14]} gxh4 {[%emt 0:03:49]} 33. Bf6 {[%emt 0:01:42]} R8d7 {[%emt 0:00:39]} 34. e5 {[%emt 0:00:41]} R7d4 {[%emt 0:01:03]} 35. Ra1 {[%emt 0:02:15]} Qxb3 {[%emt 0:01:26]} 36. Rxd3 {[%emt 0:00:18]} Qxd3 {[%emt 0:00:51]} 37. Qc1 {[%emt 0:00:15]} Qd2 {[%emt 0:00:34]} 38. Qa3 {[%emt 0:00:08]} a5 {[%emt 0:00:55]} 39. Qf3 {[%emt 0:00:19]} Qd3 {[%emt 0:00:30]} 40. Qh5 {[%emt 0:04:22]} Rd7 {[%emt 0:00:27]} 41. Qe8+ {[%emt 0:30:42]} Kh7 {[%emt 0:30:05]} 42. Be7 {[%emt 0:00:33]} Kg7 {[%emt 0:00:47]} 43. Qf8+ {[%emt 0:00:28]} Kg6 {[%emt 0:00:07]} 44. Qf6+ {[%emt 0:00:04]} Kh5 {[%emt 0:00:06]} 45. Qxh4+ {[%emt 0:00:04]} Kg6 {[%emt 0:00:06]} 46. Qf6+ {[%emt 0:00:04]} Kh5 {[%emt 0:00:05]} 47. Qxe6 {[%emt 0:00:29]} Rd4 {[%emt 0:00:37]} 48. Ra3 {[%emt 0:03:46]} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.13"]
[Round "2.5"]
[White "Pijpers, Arthur"]
[Black "Nikolic, Predrag"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2474"]
[BlackElo "2574"]
[Annotator "ChessBase"]
[PlyCount "78"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. Bc4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:01]} 4. d4 {[%emt 0:00:00]} exd4 {[%emt 0:02:28]} 5. O-O {[%emt 0:00:04]} d6 {[%emt 0:04:55]} 6. Nxd4 {[%emt 0:05:05]} Be7 {[%emt 0:00:53]} 7. Nc3 {[%emt 0:00:07]} O-O {[%emt 0:00:20]} 8. h3 {[%emt 0:00:03]} Re8 {[%emt 0:04:31]} 9. Nxc6 {[%emt 0:01:00]} bxc6 {[%emt 0:00:08]} 10. Qf3 {[%emt 0:00:06]} Bf8 {[%emt 0:10:05]} 11. Bg5 {[%emt 0:28:51]} Be6 {[%emt 0:00:16]} 12. Bb3 {[%emt 0:00:05]} Be7 {[%emt 0:01:18]} 13. Ba4 {[%emt 0:22:32]} Nd7 {[%emt 0:02:21]} 14. Bxe7 {[%emt 0:04:27]} Rxe7 {[%emt 0:00:23]} 15. Qg3 {[%emt 0:02:28]} Rb8 {[%emt 0:01:25]} 16. f4 {[%emt 0:00:41]} Bc4 {[%emt 0:10:07]} 17. Rf2 {[%emt 0:01:11]} Rb6 {[%emt 0:03:27]} 18. Bb3 {[%emt 0:03:10]} Ba6 {[%emt 0:01:34]} 19. Rd1 {[%emt 0:03:15]} Qe8 {[%emt 0:07:48]} 20. e5 {[%emt 0:06:27]} Nc5 {[%emt 0:08:01]} 21. Rfd2 {[%emt 0:05:31]} Nxb3 {[%emt 0:11:15]} 22. axb3 {[%emt 0:00:02]} d5 {[%emt 0:00:59]} 23. Ne4 {[%emt 0:01:24]} Qf8 {[%emt 0:00:16]} 24. Nc5 {[%emt 0:01:19]} Bc8 {[%emt 0:00:36]} 25. Ra1 {[%emt 0:05:54]} Re8 {[%emt 0:03:38]} 26. Qf2 {[%emt 0:00:17]} Rb5 {[%emt 0:01:26]} 27. Nd3 {[%emt 0:00:56]} a5 {[%emt 0:00:35]} 28. f5 {[%emt 0:01:50]} d4 {[%emt 0:02:18]} 29. g4 {[%emt 0:01:01]} Rd5 {[%emt 0:01:58]} 30. Ra4 {[%emt 0:02:19]} Ba6 {[%emt 0:04:28]} 31. Rxd4 {[%emt 0:02:34]} Bxd3 {[%emt 0:00:15]} 32. R4xd3 {[%emt 0:00:35]} Rdxe5 {[%emt 0:05:03]} 33. Rd7 {[%emt 0:00:03]} h6 {[%emt 0:00:30]} 34. Qd4 {[%emt 0:01:51]} h5 {[%emt 0:03:01]} 35. Rxc7 {[%emt 0:01:37]} hxg4 {[%emt 0:04:31]} 36. hxg4 {[%emt 0:00:21]} Rd5 {[%emt 0:00:18]} 37. Qf2 {[%emt 0:00:11]} Qb4 {[%emt 0:01:25]} 38. Rxd5 {[%emt 0:00:55]} Qxg4+ {[%emt 0:00:09]} 39. Kh2 {[%emt 0:00:30]} cxd5 {[%emt 0:00:15]} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.14"]
[Round "3.6"]
[White "Van Vliet, Jeffrey"]
[Black "Chanda, Sandipan"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2380"]
[BlackElo "2516"]
[Annotator "ChessBase"]
[PlyCount "96"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. c3 {[%emt 0:00:29]} Nf6 {[%emt 0:00:02]} 4. Be2 {[%emt 0:00:47]} Bd7 {[%emt 0:02:21]} 5. d3 {[%emt 0:00:16]} Bc6 {[%emt 0:03:52]} 6. O-O {[%emt 0:02:18]} Nbd7 {[%emt 0:00:22]} 7. Nbd2 {[%emt 0:02:43]} e6 {[%emt 0:03:07]} 8. Re1 {[%emt 0:04:12]} Be7 {[%emt 0:00:15]} 9. Bf1 {[%emt 0:00:08]} Ne5 {[%emt 0:10:45]} 10. d4 {[%emt 0:08:27]} Nxf3+ {[%emt 0:00:19]} 11. Qxf3 {[%emt 0:00:16]} cxd4 {[%emt 0:09:05]} 12. cxd4 {[%emt 0:00:21]} Qb6 {[%emt 0:05:06]} 13. Qd3 {[%emt 0:10:08]} O-O {[%emt 0:01:58]} 14. Nc4 {[%emt 0:05:58]} Qd8 {[%emt 0:00:37]} 15. e5 {[%emt 0:06:27]} dxe5 {[%emt 0:08:42]} 16. Nxe5 {[%emt 0:02:21]} Rc8 {[%emt 0:04:46]} 17. Bd2 {[%emt 0:08:20]} a6 {[%emt 0:10:54]} 18. a4 {[%emt 0:14:04]} Qd5 {[%emt 0:04:41]} 19. Nxc6 {[%emt 0:08:14]} Qxc6 {[%emt 0:01:27]} 20. g3 {[%emt 0:01:33]} Nd5 {[%emt 0:01:16]} 21. Bg2 {[%emt 0:00:29]} Bf6 {[%emt 0:00:20]} 22. Rec1 {[%emt 0:04:15]} Qd7 {[%emt 0:00:29]} 23. a5 {[%emt 0:01:30]} Rfd8 {[%emt 0:01:45]} 24. h4 {[%emt 0:04:13]} h6 {[%emt 0:04:41]} 25. Kh2 {[%emt 0:01:45]} Ne7 {[%emt 0:02:50]} 26. Rxc8 {[%emt 0:02:47]} Rxc8 {[%emt 0:00:53]} 27. Bc3 {[%emt 0:03:00]} Nd5 {[%emt 0:02:32]} 28. Re1 {[%emt 0:03:47]} Qb5 {[%emt 0:04:07]} 29. Qxb5 {[%emt 0:02:36]} axb5 {[%emt 0:00:06]} 30. Bxd5 {[%emt 0:00:48]} exd5 {[%emt 0:00:03]} 31. Re3 {[%emt 0:01:01]} h5 {[%emt 0:04:57]} 32. Kg2 {[%emt 0:00:10]} Kh7 {[%emt 0:00:13]} 33. Kf3 {[%emt 0:00:19]} Kg6 {[%emt 0:00:18]} 34. Rd3 {[%emt 0:02:21]} Kf5 {[%emt 0:04:02]} 35. Bb4 {[%emt 0:00:04]} Rc2 {[%emt 0:02:54]} 36. b3 {[%emt 0:00:12]} Ra2 {[%emt 0:01:23]} 37. Ke3 {[%emt 0:00:52]} Kg4 {[%emt 0:02:33]} 38. Rc3 {[%emt 0:00:44]} g5 {[%emt 0:01:16]} 39. Rc5 {[%emt 0:01:03]} gxh4 {[%emt 0:00:33]} 40. gxh4 {[%emt 0:00:13]} Rb2 {[%emt 0:02:10]} 41. f3+ {[%emt 0:03:56]} Kh3 {[%emt 0:00:18]} 42. Rxb5 {[%emt 0:02:16]} Rxb3+ {[%emt 0:00:27]} 43. Kf4 {[%emt 0:00:06]} Be7 {[%emt 0:03:54]} 44. Rxb7 {[%emt 0:00:17]} Bxb4 {[%emt 0:00:18]} 45. a6 {[%emt 0:00:40]} Bd6+ {[%emt 0:02:54]} 46. Kg5 {[%emt 0:00:24]} Rxb7 {[%emt 0:01:38]} 47. axb7 {[%emt 0:00:05]} Kg3 {[%emt 0:00:16]} 48. Kxh5 {[%emt 0:00:06]} Bf4 {[%emt 0:00:34]} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.14"]
[Round "3.7"]
[White "De Jong, Migchiel"]
[Black "Beerdsen, Thomas"]
[Result "1/2-1/2"]
[ECO "E19"]
[WhiteElo "2345"]
[BlackElo "2497"]
[Annotator "ChessBase"]
[PlyCount "123"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:01:04]} 2. c4 {[%emt 0:00:20]} b6 {[%emt 0:00:34]} 3. g3 {[%emt 0:00:28]} Bb7 {[%emt 0:00:18]} 4. Bg2 {[%emt 0:00:07]} e6 {[%emt 0:01:26]} 5. d4 {[%emt 0:01:04]} Be7 {[%emt 0:00:12]} 6. O-O {[%emt 0:00:18]} O-O {[%emt 0:00:04]} 7. Nc3 {[%emt 0:03:40]} Ne4 {[%emt 0:00:18]} 8. Qc2 {[%emt 0:00:29]} Nxc3 {[%emt 0:00:56]} 9. Qxc3 {[%emt 0:00:14]} c5 {[%emt 0:02:56]} 10. Rd1 {[%emt 0:02:07]} Bf6 {[%emt 0:07:37]} 11. Qd3 {[%emt 0:01:16]} Nc6 {[%emt 0:08:02]} 12. d5 {[%emt 0:02:45]} Nb4 {[%emt 0:04:31]} 13. Qb1 {[%emt 0:01:42]} exd5 {[%emt 0:00:34]} 14. a3 {[%emt 0:00:13]} Nc6 {[%emt 0:07:18]} 15. cxd5 {[%emt 0:01:19]} Nd4 {[%emt 0:01:34]} 16. Nxd4 {[%emt 0:00:36]} Bxd4 {[%emt 0:03:46]} 17. e3 {[%emt 0:01:04]} Bf6 {[%emt 0:06:08]} 18. Bd2 {[%emt 0:00:53]} d6 {[%emt 0:02:34]} 19. a4 {[%emt 0:09:20]} a6 {[%emt 0:01:30]} 20. Bc3 {[%emt 0:00:34]} b5 {[%emt 0:00:46]} 21. axb5 {[%emt 0:00:43]} axb5 {[%emt 0:00:06]} 22. Rxa8 {[%emt 0:00:14]} Bxa8 {[%emt 0:00:05]} 23. Qf5 {[%emt 0:01:23]} Bxc3 {[%emt 0:03:10]} 24. bxc3 {[%emt 0:00:06]} g6 {[%emt 0:03:36]} 25. Qf4 {[%emt 0:00:38]} Qe7 {[%emt 0:06:43]} 26. Ra1 {[%emt 0:02:44]} Rb8 {[%emt 0:02:50]} 27. Ra6 {[%emt 0:01:42]} b4 {[%emt 0:00:33]} 28. cxb4 {[%emt 0:00:27]} cxb4 {[%emt 0:00:05]} 29. Rxd6 {[%emt 0:00:18]} Qe8 {[%emt 0:08:15]} 30. Rd7 {[%emt 0:03:00]} Rc8 {[%emt 0:01:54]} 31. Rc7 {[%emt 0:05:07]} b3 {[%emt 0:00:59]} 32. d6 {[%emt 0:01:00]} Rxc7 {[%emt 0:11:41]} 33. dxc7 {[%emt 0:00:24]} Bxg2 {[%emt 0:00:19]} 34. Kxg2 {[%emt 0:03:30]} Qc6+ {[%emt 0:00:18]} 35. Kh3 {[%emt 0:03:17]} Qd7+ {[%emt 0:00:30]} 36. g4 {[%emt 0:01:00]} h5 {[%emt 0:03:07]} 37. f3 {[%emt 0:12:58]} hxg4+ {[%emt 0:00:18]} 38. fxg4 {[%emt 0:00:09]} b2 {[%emt 0:03:10]} 39. Qb4 {[%emt 0:03:20]} Qxc7 {[%emt 0:00:08]} 40. Qxb2 {[%emt 0:00:03]} Qc4 {[%emt 0:01:15]} 41. Qb8+ {[%emt 0:30:26]} Kg7 {[%emt 0:30:16]} 42. Qe5+ {[%emt 0:00:34]} Kg8 {[%emt 0:02:38]} 43. Qf4 {[%emt 0:00:20]} Qe6 {[%emt 0:01:20]} 44. Kg3 {[%emt 0:03:36]} Qb6 {[%emt 0:02:57]} 45. h4 {[%emt 0:01:23]} Qa5 {[%emt 0:02:19]} 46. Kh3 {[%emt 0:02:43]} Qd5 {[%emt 0:01:40]} 47. Qf2 {[%emt 0:01:44]} Qe4 {[%emt 0:00:00]} 48. Kg3 {[%emt 0:00:00]} Qe5+ {[%emt 0:00:00]} 49. Qf4 {[%emt 0:00:00]} Qa5 {[%emt 0:00:00]} 50. Qf3 {[%emt 0:00:00]} Qe5+ {[%emt 0:00:00]} 51. Kh3 {[%emt 0:00:00]} Qe6 {[%emt 0:00:00]} 52. Kg3 {[%emt 0:00:00]} Qe5+ {[%emt 0:00:00]} 53. Kg2 {[%emt 0:00:00]} Kg7 {[%emt 0:00:00]} 54. h5 {[%emt 0:00:00]} gxh5 {[%emt 0:00:00]} 55. gxh5 {[%emt 0:00:00]} Qg5+ {[%emt 0:00:00]} 56. Kf2 {[%emt 0:00:00]} f5 {[%emt 0:00:00]} 57. Qg3 {[%emt 0:00:00]} Kh6 {[%emt 0:00:00]} 58. Qxg5+ {[%emt 0:00:00]} Kxg5 {[%emt 0:00:00]} 59. Kf3 {[%emt 0:00:00]} Kxh5 {[%emt 0:00:00]} 60. Kf4 {[%emt 0:00:00]} Kg6 {[%emt 0:00:00]} 61. e4 {[%emt 0:00:00]} fxe4 {[%emt 0:00:00]} 62. Kxe4 {[%emt 0:00:00]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.14"]
[Round "3.8"]
[White "Ivanov, Sergey"]
[Black "Kollen, Zyon"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2496"]
[BlackElo "2362"]
[Annotator "ChessBase"]
[PlyCount "57"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:16]} c6 {[%emt 0:00:00]} 4. e3 {[%emt 0:00:44]} Nf6 {[%emt 0:00:00]} 5. Nf3 {[%emt 0:00:07]} Nbd7 {[%emt 0:00:05]} 6. Qc2 {[%emt 0:00:22]} Bd6 {[%emt 0:01:37]} 7. b3 {[%emt 0:01:01]} b6 {[%emt 0:01:55]} 8. Be2 {[%emt 0:02:37]} Bb7 {[%emt 0:03:59]} 9. O-O {[%emt 0:00:37]} O-O {[%emt 0:02:31]} 10. Bb2 {[%emt 0:00:23]} Re8 {[%emt 0:13:39]} 11. Rad1 {[%emt 0:03:03]} Qc7 {[%emt 0:03:52]} 12. h3 {[%emt 0:07:56]} a6 {[%emt 0:01:41]} 13. e4 {[%emt 0:08:27]} e5 {[%emt 0:08:30]} 14. dxe5 {[%emt 0:06:06]} Nxe5 {[%emt 0:01:14]} 15. Nd4 {[%emt 0:10:30]} dxe4 {[%emt 0:16:04]} 16. Nf5 {[%emt 0:00:58]} Bf8 {[%emt 0:01:00]} 17. Nxe4 {[%emt 0:00:24]} Nxe4 {[%emt 0:00:20]} 18. Qxe4 {[%emt 0:00:09]} Ng6 {[%emt 0:09:40]} 19. Qc2 {[%emt 0:05:28]} c5 {[%emt 0:03:48]} 20. Ne3 {[%emt 0:09:45]} Nf4 {[%emt 0:04:04]} 21. Bg4 {[%emt 0:00:54]} h5 {[%emt 0:02:13]} 22. Rd7 {[%emt 0:05:47]} Qc6 {[%emt 0:00:36]} 23. Qf5 {[%emt 0:00:51]} Rxe3 {[%emt 0:14:56]} 24. Qxf7+ {[%emt 0:01:33]} Kh7 {[%emt 0:00:06]} 25. Bf5+ {[%emt 0:01:13]} Kh6 {[%emt 0:00:14]} 26. Bxg7+ {[%emt 0:01:14]} Kg5 {[%emt 0:00:07]} 27. h4+ {[%emt 0:00:43]} Kxh4 {[%emt 0:00:13]} 28. Qf6+ {[%emt 0:00:33]} Qxf6 {[%emt 0:00:05]} 29. Bxf6# {[%emt 0:00:06]} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.14"]
[Round "3.9"]
[White "De Niet, Gert-Michiel"]
[Black "Lai, Hing Ting"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2208"]
[BlackElo "2460"]
[Annotator "ChessBase"]
[PlyCount "76"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:00]} d5 {[%emt 0:00:31]} 4. Nc3 {[%emt 0:00:00]} Bb4 {[%emt 0:00:12]} 5. Bg5 {[%emt 0:01:04]} h6 {[%emt 0:00:39]} 6. Bxf6 {[%emt 0:00:47]} Qxf6 {[%emt 0:00:07]} 7. e3 {[%emt 0:02:50]} c5 {[%emt 0:01:19]} 8. Rc1 {[%emt 0:04:26]} dxc4 {[%emt 0:04:04]} 9. Bxc4 {[%emt 0:00:54]} O-O {[%emt 0:09:24]} 10. O-O {[%emt 0:29:17]} cxd4 {[%emt 0:03:19]} 11. Nxd4 {[%emt 0:03:04]} Qe7 {[%emt 0:02:15]} 12. Qb3 {[%emt 0:09:07]} Bd6 {[%emt 0:10:38]} 13. Rfd1 {[%emt 0:07:27]} a6 {[%emt 0:01:53]} 14. a4 {[%emt 0:08:37]} Nd7 {[%emt 0:04:39]} 15. Qc2 {[%emt 0:01:12]} Nf6 {[%emt 0:01:51]} 16. Ne4 {[%emt 0:04:52]} Be5 {[%emt 0:02:47]} 17. b3 {[%emt 0:06:34]} Nxe4 {[%emt 0:03:54]} 18. Qxe4 {[%emt 0:00:02]} Bf6 {[%emt 0:00:18]} 19. Nf3 {[%emt 0:03:02]} e5 {[%emt 0:05:46]} 20. Nd2 {[%emt 0:03:03]} Rb8 {[%emt 0:03:55]} 21. Qb1 {[%emt 0:03:42]} Rd8 {[%emt 0:07:23]} 22. Ne4 {[%emt 0:02:26]} Bg4 {[%emt 0:00:09]} 23. f3 {[%emt 0:01:15]} Bf5 {[%emt 0:00:40]} 24. Nxf6+ {[%emt 0:00:21]} Qxf6 {[%emt 0:00:06]} 25. e4 {[%emt 0:00:07]} Be6 {[%emt 0:00:33]} 26. Bxe6 {[%emt 0:03:27]} Qxe6 {[%emt 0:00:06]} 27. Rxd8+ {[%emt 0:00:18]} Rxd8 {[%emt 0:00:07]} 28. Rd1 {[%emt 0:00:06]} Qb6+ {[%emt 0:00:33]} 29. Kf1 {[%emt 0:01:53]} Rc8 {[%emt 0:00:13]} 30. Rc1 {[%emt 0:00:31]} Rxc1+ {[%emt 0:00:17]} 31. Qxc1 {[%emt 0:00:01]} Qxb3 {[%emt 0:00:18]} 32. Qc8+ {[%emt 0:01:28]} Kh7 {[%emt 0:00:02]} 33. a5 {[%emt 0:00:50]} b6 {[%emt 0:04:40]} 34. axb6 {[%emt 0:01:02]} Qb1+ {[%emt 0:00:55]} 35. Ke2 {[%emt 0:00:16]} Qxb6 {[%emt 0:00:01]} 36. Qf5+ {[%emt 0:00:18]} Qg6 {[%emt 0:00:02]} 37. Qxe5 {[%emt 0:01:22]} Qxg2+ {[%emt 0:00:07]} 38. Ke3 {[%emt 0:01:27]} Qg5+ {[%emt 0:00:38]} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.14"]
[Round "3.10"]
[White "Both, Gert"]
[Black "Bueno, Mark"]
[Result "1/2-1/2"]
[ECO "E34"]
[WhiteElo "1859"]
[BlackElo "1976"]
[Annotator "NA"]
[PlyCount "66"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:00]} Bb4 {[%emt 0:00:00]} 4. Qc2 {[%emt 0:00:11]} d5 {[%emt 0:00:00]} 5. e3 {[%emt 0:00:31]} O-O {[%emt 0:00:11]} 6. Bd3 {[%emt 0:01:16]} b6 {[%emt 0:00:56]} 7. Nge2 {[%emt 0:00:54]} Bb7 {[%emt 0:01:37]} 8. O-O {[%emt 0:00:24]} Nbd7 {[%emt 0:00:23]} 9. cxd5 {[%emt 0:00:57]} exd5 {[%emt 0:00:20]} 10. a3 {[%emt 0:02:34]} Bxc3 {[%emt 0:00:32]} 11. Nxc3 {[%emt 0:00:20]} c5 {[%emt 0:00:38]} 12. b3 {[%emt 0:04:06]} Qe7 {[%emt 0:00:46]} 13. a4 {[%emt 0:02:27]} Rac8 {[%emt 0:00:49]} 14. Ba3 {[%emt 0:01:46]} Rfe8 {[%emt 0:00:11]} 15. Qd2 {[%emt 0:09:09]} Qe6 {[%emt 0:05:43]} 16. Rac1 {[%emt 0:10:45]} cxd4 {[%emt 0:06:06]} 17. exd4 {[%emt 0:00:26]} Ne4 {[%emt 0:00:35]} 18. Nxe4 {[%emt 0:03:01]} dxe4 {[%emt 0:00:08]} 19. Bc4 {[%emt 0:07:03]} Bd5 {[%emt 0:04:59]} 20. Rfe1 {[%emt 0:06:15]} Nf6 {[%emt 0:00:57]} 21. Rc3 {[%emt 0:04:54]} Bxc4 {[%emt 0:05:15]} 22. bxc4 {[%emt 0:00:10]} Rxc4 {[%emt 0:00:41]} 23. d5 {[%emt 0:00:25]} Qc8 {[%emt 0:00:25]} 24. Rxc4 {[%emt 0:01:48]} Qxc4 {[%emt 0:00:04]} 25. d6 {[%emt 0:00:34]} Qxa4 {[%emt 0:01:17]} 26. Bb2 {[%emt 0:01:27]} Qd7 {[%emt 0:16:18]} 27. Rc1 {[%emt 0:11:48]} Rd8 {[%emt 0:17:17]} 28. Rc7 {[%emt 0:02:13]} Qe6 {[%emt 0:06:00]} 29. Rxa7 {[%emt 0:02:06]} h6 {[%emt 0:03:41]} 30. Bxf6 {[%emt 0:02:33]} Qxf6 {[%emt 0:00:06]} 31. d7 {[%emt 0:00:20]} Qc6 {[%emt 0:00:42]} 32. h3 {[%emt 0:01:16]} b5 {[%emt 0:00:31]} 33. Qd4 {[%emt 0:05:54]} b4 {[%emt 0:19:18]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.15"]
[Round "4.1"]
[White "Kuipers, Stefan"]
[Black "Das, Arghyadip"]
[Result "1/2-1/2"]
[ECO "C13"]
[WhiteElo "2435"]
[BlackElo "2439"]
[Annotator "ChessBase"]
[PlyCount "29"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 4. Bg5 {[%emt 0:00:05]} dxe4 {[%emt 0:00:11]} 5. Nxe4 {[%emt 0:00:09]} Be7 {[%emt 0:00:04]} 6. Nxf6+ {[%emt 0:03:56]} Bxf6 {[%emt 0:00:29]} 7. Bxf6 {[%emt 0:00:37]} Qxf6 {[%emt 0:00:06]} 8. Nf3 {[%emt 0:00:15]} c5 {[%emt 0:02:20]} 9. Qd3 {[%emt 0:09:10]} Nc6 {[%emt 0:31:29]} 10. O-O-O {[%emt 0:06:45]} cxd4 {[%emt 0:03:20]} 11. Qe4 {[%emt 0:04:52]} Bd7 {[%emt 0:02:55]} 12. Nxd4 {[%emt 0:04:23]} Nxd4 {[%emt 0:03:44]} 13. Rxd4 {[%emt 0:00:19]} Bc6 {[%emt 0:00:28]} 14. Qe3 {[%emt 0:01:14]} O-O {[%emt 0:01:05]} 15. f3 {[%emt 0:05:05]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.15"]
[Round "4.2"]
[White "Van der Wiel, John T.H."]
[Black "Stefansson, Hannes"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2380"]
[BlackElo "2562"]
[Annotator "ChessBase"]
[PlyCount "33"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:02]} 3. Bb5 {[%emt 0:00:00]} a6 {[%emt 0:00:13]} 4. Bxc6 {[%emt 0:00:25]} dxc6 {[%emt 0:00:21]} 5. O-O {[%emt 0:00:12]} Qd6 {[%emt 0:01:00]} 6. d3 {[%emt 0:01:45]} Ne7 {[%emt 0:02:23]} 7. Nbd2 {[%emt 0:01:20]} Ng6 {[%emt 0:02:34]} 8. Nc4 {[%emt 0:07:03]} Qe6 {[%emt 0:01:01]} 9. b3 {[%emt 0:05:55]} c5 {[%emt 0:06:42]} 10. Ne3 {[%emt 0:22:29]} f6 {[%emt 0:05:42]} 11. a3 {[%emt 0:08:17]} Qf7 {[%emt 0:04:41]} 12. Bd2 {[%emt 0:14:01]} Be6 {[%emt 0:05:54]} 13. b4 {[%emt 0:00:33]} b6 {[%emt 0:12:02]} 14. Kh1 {[%emt 0:05:06]} Bd6 {[%emt 0:01:51]} 15. bxc5 {[%emt 0:02:29]} bxc5 {[%emt 0:00:17]} 16. Bc3 {[%emt 0:04:39]} O-O {[%emt 0:13:08]} 17. Nd2 {[%emt 0:00:24]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.15"]
[Round "4.3"]
[White "Lalith Babu M R"]
[Black "Sengupta, Deep"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2580"]
[BlackElo "2558"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,43,-13,56,60,53,0,0,0,0,3,11,8,14,0,0,0,0,0,0,0,0,0,12,0,0,0,0,0,0,-9,-3,-13,-20,-38,-39,-37]} 1. c4 e6 2. Nf3 d5 3. g3 dxc4 4. Bg2 a6 5. Qc2 (5. O-O Nc6 6. Na3 Bxa3 7. bxa3 e5 8. Rb1 Nge7 9. Qc2 Bf5 10. e4 Bg4 11. Rxb7 Bxf3 12. Bxf3 {0-1 (41) Aronian,L (2785)-Grandelius,N (2643) Doha 2016}) 5... Nc6 (5... c5 $11) 6. Qxc4 $14 {A13: English Opening: 1...e6} e5 {[#]} 7. d3 $146 (7. Ng5 $1 $14 {[%mdl 512]} Nh6 (7... Qxg5 8. Bxc6+) 8. Bxc6+ bxc6 9. Qxc6+ Bd7 10. Qd5) ({Predecessor:} 7. O-O Be6 8. Qa4 f6 9. Nc3 Nge7 10. d4 b5 11. Qc2 exd4 12. Ne4 {1-0 (23) Chatalbashev,B (2546)-Englert,F (2375) Ballerup 2017}) 7... Be6 $11 8. Qa4 {Threatening Nxe5.The position is equal.} f6 9. Nc3 Qd7 10. O-O Nge7 11. Rd1 Nf5 12. e3 Rd8 13. d4 exd4 14. e4 Nd6 15. Nxd4 Nxd4 16. Qxd4 Nb5 17. Qxd7+ Rxd7 18. Nd5 c6 19. a4 Nc7 {[%mdl 64] [#] Pin} 20. Re1 Kf7 21. Nb6 Rd8 22. Bf4 {Accuracy: White = 70%, Black = 66%.} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.15"]
[Round "4.4"]
[White "Pijpers, Arthur"]
[Black "Schekachikhin, Maksim"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2474"]
[BlackElo "2415"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,93,73,84,93,93,90,91,91,100,92,93,93,103,105,97,106,94,110,102,77,136,141,128,122,134,134,123,127,131,131,122,128,122,120,143,148,171,176,164,150,200,204,386,392,359,333,335,323,270,323,682,307,254,277,532,480,470,462,428,405,790,770,786,755,721,706,29964,29966,29952,29953,29983,29984,29983,29984,29985,29986,29986,29987,29989,29989]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8. Qg3 Nc6 9. Nf3 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4} cxd4 10. cxd4 Nge7 11. Be2 {White is better.} ({Much weaker is} 11. Qxg7 $6 Rg8 $11) (11. Rb1 O-O 12. Bh6 Qa5+ 13. Bd2 Qa4 14. c3 Qc2 15. Rc1 Qe4+ 16. Be2 f4 {½-½ (117) Karjakin,S (2776)-Ivanchuk,V (2779) Monte Carlo 2011}) 11... O-O 12. O-O Bd7 13. a4 Be8 14. c3 Qd7 15. Nd2 Na5 $146 ({Predecessor:} 15... f4 16. Qg4 Bg6 {1-0 (34) Holroyd,K (2529)-Kuiper,J (2493) ICCF email 2015}) 16. Ba3 Rc8 17. Bb4 Nc4 (17... Nac6 $142) 18. Nxc4 $16 dxc4 19. a5 f4 20. Qh3 Bg6 21. Bc5 Bd3 22. Bxd3 cxd3 23. Bxe7 Qxe7 24. Qxd3 f3 25. g3 ({Don't play} 25. gxf3 $6 Qg5+ 26. Kh1 Qh5 $14) 25... Qg5 26. Rfe1 Qg4 27. Re3 Rf5 28. Rb1 Rcf8 $2 (28... Rf7 29. h3 Qg6 30. Qxg6 hxg6) 29. Rxb7 $18 Rh5 30. Qe4 ({Worse is} 30. Rxa7 Qh3 $11) 30... Qh3 {[%csl Gf3][%cal Rh3g2] [#]} 31. Rxf3 Qxh2+ 32. Kf1 {aiming for Rxg7+!} Qh1+ 33. Ke2 Rhf5 {[%cal Rf5f3]} 34. Rf4 Qa1 $2 (34... Qxe4+ 35. Rxe4 Rxf2+ 36. Kd3 R8f7) 35. Rxa7 {Qb7! is the strong threat.} Rxf4 36. gxf4 Qxc3 {[%mdl 4096] Endgame KQR-KQR} 37. Ra8 Qc4+ (37... Rxa8 $142 38. Qxa8+ Kf7 39. Qa7+ Kg6) 38. Kf3 Rxa8 39. Qxa8+ {KQ-KQ} Kf7 40. Qb7+ Kg6 41. a6 {[%cal Ba5a6,Ba6a7][%mdl 32] White mates.} Qd3+ 42. Kg2 Qe2 43. a7 Qg4+ 44. Kh1 Qh5+ {[#]} 45. Kg1 $1 Qd1+ 46. Kh2 Qh5+ 47. Kg3 {Accuracy: White = 99%, Black = 48%.} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.15"]
[Round "4.5"]
[White "Nikolic, Predrag"]
[Black "Pruijssers, Roeland"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2574"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,128,2,12,-3,0,6,16,11,13,0,7,10,19,20,18,16,21,6,10,-6,-8,-14,0,0,0,0,38,33,97,97,112,112,141,140,213,187,162,173,177,172,172,161,157,162,316,284,324,327,324,324,298,189,189,189,156,-131,-133,-133,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-681,-640,-661,-654,-377,-7,-8,-8,-8,0,-12687,-12710,-7022,-7029,-29948,-29954,-5135,-12632,-5135,-5124,-29967,-29968,-29967,-29969,-29963,-29965,-12653,-5110,-5102,-5102,-5102,-5065]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c3 c6 7. Bf4 Bf5 8. Qc1 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (8. Nbd2 Nbd7 9. Qb3 Qb6 10. Rfe1 Rfe8 11. Rac1 Ne4 12. Nxe4 dxe4 13. Nd2 e5 14. dxe5 Bxe5 15. Bxe5 Rxe5 {1-0 (44) Tomashevsky,E (2705)-Nielsen,P (2635) Germany 2019}) 8... Qc8 9. Bh6 Bh3 10. Bxg7 {The position is equal.} Kxg7 11. Qf4 $146 ({Predecessor:} 11. Ne5 Bxg2 12. Kxg2 {½-½ (12) Kurajica,B (2505)-Barlov,D (2433) Las Palmas 2014}) 11... Bxg2 12. Kxg2 Qf5 (12... Nbd7 {is more complex.} 13. Nbd2 Qb8 14. Qe3 e6 15. c4 Qc7) 13. Qxf5 gxf5 14. Nbd2 {[%cal Bb1d2,Bd2b3,Bb3a1,Ba1c2,Bc2b4][%mdl 32]} Ne4 15. Nb3 a5 16. Rac1 a4 17. Na1 b5 18. Ne5 Rc8 19. Nc2 $36 {[%mdl 2048] White is pushing.} Na6 20. Nb4 e6 ({Black should play} 20... Nb8 $14) 21. Nexc6 $16 a3 22. b3 $1 ({But not} 22. bxa3 $6 Nxb4 23. cxb4 Rxa3 $11) 22... Nxc3 23. Rc2 $1 f6 (23... Nxb4 $16 24. Nxb4 Ne4) 24. Nxa6 Rxa6 25. Nb4 $1 {[%cal Rb4a6]} Ra7 26. Rfc1 Rac7 27. Kf1 e5 28. e3 exd4 $2 (28... Kf7 {might work better.} 29. Ke1 h5) 29. exd4 $18 f4 30. gxf4 Kg6 31. f3 Kf5 32. Ke1 Nxa2 33. Rxc7 Re8+ 34. Kf2 $2 (34. Kd2 $16 {is necessary to keep the advantage.} Nxb4 35. Ra1 (35. Rxh7 Rg8 $14)) 34... Nxb4 $17 {[%mdl 4096] Endgame KRR-KRN} 35. Ra1 {[#]} h5 (35... Nd3+ $1 $17 36. Kf1 b4) 36. Rxa3 $11 {Rc3 is the strong threat.} Nd3+ 37. Kf1 Re1+ 38. Kg2 Nxf4+ 39. Kf2 Nd3+ 40. Kg2 Nf4+ 41. Kf2 Re2+ 42. Kg1 Rg2+ 43. Kf1 Rxh2 44. Ra6 Rh1+ 45. Kf2 Rh2+ 46. Kf1 h4 47. Rf7 Nh5 48. Rh7 Kg6 49. Rxh5 $2 {[%mdl 8192]} (49. Rh8 $11) 49... Kxh5 $19 50. Rxf6 $11 {[#] KR-KR} h3 $1 51. Kg1 Rb2 $2 (51... Rg2+ $19 52. Kh1 Kh4) 52. Rf5+ Kh4 53. Rxd5 Rxb3 {And now ...b4 would win.} 54. Rd8 $2 {[%mdl 8192]} (54. Re5 $11) 54... Kg3 $19 {[%cal Rb3b1]} 55. Rg8+ Kxf3 56. Kh2 Ke4 57. Rd8 b4 {[%cal Bb5b4,Bb4b3][%mdl 32]} 58. d5 Ke5 59. Rd7 Rc3 {Played: Rb3-d3} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.17"]
[Round "5.1"]
[White "Pruijssers, Roeland"]
[Black "Kuipers, Stefan"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2534"]
[BlackElo "2435"]
[Annotator "ChessBase"]
[PlyCount "93"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:01:50]} c6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:09]} d5 {[%emt 0:00:00]} 3. e5 {[%emt 0:00:06]} Bf5 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:00:06]} e6 {[%emt 0:00:00]} 5. Be2 {[%emt 0:00:06]} Ne7 {[%emt 0:00:06]} 6. O-O {[%emt 0:00:21]} Nd7 {[%emt 0:00:15]} 7. c3 {[%emt 0:02:29]} h6 {[%emt 0:02:00]} 8. Nbd2 {[%emt 0:04:22]} g5 {[%emt 0:00:48]} 9. Ne1 {[%emt 0:03:46]} Qc7 {[%emt 0:03:42]} 10. Nb3 {[%emt 0:03:54]} O-O-O {[%emt 0:04:15]} 11. Bd3 {[%emt 0:20:29]} Bg7 {[%emt 0:32:13]} 12. Bxf5 {[%emt 0:12:21]} Nxf5 {[%emt 0:00:24]} 13. Nd3 {[%emt 0:00:15]} c5 {[%emt 0:11:48]} 14. Nbxc5 {[%emt 0:02:53]} Nxc5 {[%emt 0:00:39]} 15. dxc5 {[%emt 0:01:09]} Bxe5 {[%emt 0:03:36]} 16. Qh5 {[%emt 0:00:08]} Bg7 {[%emt 0:04:39]} 17. b4 {[%emt 0:06:57]} Bxc3 {[%emt 0:08:35]} 18. Rb1 {[%emt 0:00:06]} Kb8 {[%emt 0:00:28]} 19. b5 {[%emt 0:04:02]} b6 {[%emt 0:08:32]} 20. Ba3 {[%emt 0:02:18]} g4 {[%emt 0:02:06]} 21. Rfc1 {[%emt 0:07:29]} d4 {[%emt 0:03:45]} 22. cxb6 {[%emt 0:02:39]} axb6 {[%emt 0:02:28]} 23. Nb4 {[%emt 0:01:04]} Ka8 {[%emt 0:00:46]} 24. Qxg4 {[%emt 0:00:48]} Ne7 {[%emt 0:02:07]} 25. Qe4+ {[%emt 0:09:52]} Ka7 {[%emt 0:02:55]} 26. Na6 {[%emt 0:04:27]} Qd7 {[%emt 0:00:25]} 27. Bxe7 {[%emt 0:00:34]} Qxe7 {[%emt 0:00:23]} 28. Nb4 {[%emt 0:00:09]} Bxb4 {[%emt 0:01:10]} 29. Rxb4 {[%emt 0:00:06]} Rd5 {[%emt 0:01:20]} 30. Rbc4 {[%emt 0:01:12]} Kb7 {[%emt 0:01:14]} 31. Qc2 {[%emt 0:00:20]} Rc5 {[%emt 0:00:35]} 32. Qe4+ {[%emt 0:01:24]} Rd5 {[%emt 0:00:08]} 33. Qf4 {[%emt 0:01:53]} e5 {[%emt 0:01:02]} 34. Qe4 {[%emt 0:01:24]} Rhd8 {[%emt 0:00:07]} 35. Rxd4 {[%emt 0:00:49]} Qd6 {[%emt 0:02:40]} 36. Rxd5 {[%emt 0:02:34]} Qxd5 {[%emt 0:00:03]} 37. Qa4 {[%emt 0:00:51]} Kb8 {[%emt 0:00:47]} 38. h3 {[%emt 0:01:03]} Rg8 {[%emt 0:00:56]} 39. g3 {[%emt 0:00:47]} Qd3 {[%emt 0:00:54]} 40. Qc4 {[%emt 0:01:18]} Qxc4 {[%emt 0:01:07]} 41. Rxc4 {[%emt 0:30:06]} Rg6 {[%emt 0:03:33]} 42. Kg2 {[%emt 0:00:00]} Kb7 {[%emt 0:01:47]} 43. f4 {[%emt 0:00:00]} Re6 {[%emt 0:02:07]} 44. Kf3 {[%emt 0:00:00]} f5 {[%emt 0:02:01]} 45. fxe5 {[%emt 0:00:00]} Rxe5 {[%emt 0:00:05]} 46. a4 {[%emt 0:00:00]} Rd5 {[%emt 0:00:05]} 47. Rh4 {[%emt 0:00:00]} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.17"]
[Round "5.2"]
[White "Schekachikhin, Maksim"]
[Black "Nikolic, Predrag"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2415"]
[BlackElo "2574"]
[Annotator "ChessBase"]
[PlyCount "88"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} f5 {[%emt 0:00:00]} 2. Bf4 {[%emt 0:00:47]} Nf6 {[%emt 0:00:10]} 3. e3 {[%emt 0:00:29]} g6 {[%emt 0:00:27]} 4. Nf3 {[%emt 0:02:28]} Bg7 {[%emt 0:01:16]} 5. Bc4 {[%emt 0:00:33]} d6 {[%emt 0:01:35]} 6. h3 {[%emt 0:01:01]} e6 {[%emt 0:00:18]} 7. g4 {[%emt 0:02:02]} Qe7 {[%emt 0:01:43]} 8. gxf5 {[%emt 0:07:10]} exf5 {[%emt 0:00:10]} 9. Nc3 {[%emt 0:01:51]} Nbd7 {[%emt 0:05:06]} 10. Qe2 {[%emt 0:23:42]} Nb6 {[%emt 0:00:36]} 11. Bb3 {[%emt 0:00:21]} Be6 {[%emt 0:01:22]} 12. Bxe6 {[%emt 0:04:13]} Qxe6 {[%emt 0:00:07]} 13. Ng5 {[%emt 0:00:21]} Qd7 {[%emt 0:02:28]} 14. O-O-O {[%emt 0:06:25]} h6 {[%emt 0:02:36]} 15. Nf3 {[%emt 0:00:49]} g5 {[%emt 0:00:11]} 16. Bh2 {[%emt 0:06:22]} O-O-O {[%emt 0:00:18]} 17. h4 {[%emt 0:03:20]} g4 {[%emt 0:00:49]} 18. Ne1 {[%emt 0:00:06]} h5 {[%emt 0:03:02]} 19. Nd3 {[%emt 0:02:51]} Ne4 {[%emt 0:00:50]} 20. Nxe4 {[%emt 0:03:45]} fxe4 {[%emt 0:00:12]} 21. Nf4 {[%emt 0:00:06]} d5 {[%emt 0:01:47]} 22. Kb1 {[%emt 0:04:03]} Rh6 {[%emt 0:03:24]} 23. b3 {[%emt 0:05:41]} Bf8 {[%emt 0:02:25]} 24. c3 {[%emt 0:03:55]} Ba3 {[%emt 0:02:47]} 25. Rd2 {[%emt 0:04:40]} a5 {[%emt 0:05:02]} 26. Rc2 {[%emt 0:02:06]} a4 {[%emt 0:04:33]} 27. b4 {[%emt 0:01:19]} Nc4 {[%emt 0:02:04]} 28. Ka1 {[%emt 0:00:51]} b6 {[%emt 0:00:26]} 29. Rb1 {[%emt 0:01:35]} Kb7 {[%emt 0:00:14]} 30. Qd1 {[%emt 0:01:36]} Rf8 {[%emt 0:00:39]} 31. Bg3 {[%emt 0:01:10]} Qb5 {[%emt 0:02:15]} 32. Qe2 {[%emt 0:01:44]} Rf5 {[%emt 0:00:31]} 33. Bh2 {[%emt 0:02:26]} Nd6 {[%emt 0:08:37]} 34. c4 {[%emt 0:03:19]} Nxc4 {[%emt 0:08:35]} 35. Nxd5 {[%emt 0:00:32]} Qxd5 {[%emt 0:00:28]} 36. Rxc4 {[%emt 0:01:28]} Rc6 {[%emt 0:00:14]} 37. Rxc6 {[%emt 0:01:14]} Qxc6 {[%emt 0:00:07]} 38. Qd2 {[%emt 0:00:12]} Rb5 {[%emt 0:02:03]} 39. Be5 {[%emt 0:00:34]} Qc4 {[%emt 0:01:01]} 40. d5 {[%emt 0:00:56]} Rxd5 {[%emt 0:01:03]} 41. Bd4 {[%emt 0:31:39]} Qd3 {[%emt 0:30:51]} 42. Qxd3 {[%emt 0:00:00]} exd3 {[%emt 0:00:00]} 43. b5 {[%emt 0:00:00]} Rf5 {[%emt 0:00:00]} 44. e4 {[%emt 0:00:00]} Rf4 {[%emt 0:00:00]} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.17"]
[Round "5.3"]
[White "Sengupta, Deep"]
[Black "Pijpers, Arthur"]
[Result "1-0"]
[ECO "B60"]
[WhiteElo "2558"]
[BlackElo "2474"]
[Annotator "ChessBase"]
[PlyCount "73"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:01]} Nc6 {[%emt 0:00:00]} 6. Bg5 {[%emt 0:00:25]} e6 {[%emt 0:00:00]} 7. Qd2 {[%emt 0:00:03]} Qb6 {[%emt 0:00:00]} 8. Nb3 {[%emt 0:11:48]} Be7 {[%emt 0:00:17]} 9. Be2 {[%emt 0:03:27]} O-O {[%emt 0:07:30]} 10. Be3 {[%emt 0:02:40]} Qc7 {[%emt 0:00:32]} 11. g4 {[%emt 0:00:04]} d5 {[%emt 0:15:26]} 12. exd5 {[%emt 0:02:12]} Nxd5 {[%emt 0:03:11]} 13. Nxd5 {[%emt 0:00:06]} exd5 {[%emt 0:00:04]} 14. O-O-O {[%emt 0:00:53]} Rd8 {[%emt 0:11:31]} 15. Nd4 {[%emt 0:01:44]} a6 {[%emt 0:01:32]} 16. h3 {[%emt 0:15:55]} Bd7 {[%emt 0:12:28]} 17. Rhe1 {[%emt 0:03:21]} Ne5 {[%emt 0:04:24]} 18. Bf4 {[%emt 0:05:35]} Bd6 {[%emt 0:00:38]} 19. Bg3 {[%emt 0:00:18]} Rac8 {[%emt 0:04:47]} 20. Kb1 {[%emt 0:03:10]} b5 {[%emt 0:10:40]} 21. Bf1 {[%emt 0:01:56]} Re8 {[%emt 0:11:44]} 22. Re3 {[%emt 0:09:34]} Nc4 {[%emt 0:00:26]} 23. Bxc4 {[%emt 0:03:12]} Rxe3 {[%emt 0:19:23]} 24. fxe3 {[%emt 0:19:55]} dxc4 {[%emt 0:00:00]} 25. Nf5 {[%emt 0:06:57]} Bxg3 {[%emt 0:00:00]} 26. Ne7+ {[%emt 0:00:19]} Kf8 {[%emt 0:00:00]} 27. Nxc8 {[%emt 0:00:04]} Ke8 {[%emt 0:00:00]} 28. Nd6+ {[%emt 0:01:19]} Ke7 {[%emt 0:00:00]} 29. Ne4 {[%emt 0:01:39]} Be5 {[%emt 0:00:00]} 30. Qb4+ {[%emt 0:00:22]} Ke8 {[%emt 0:00:00]} 31. Nd6+ {[%emt 0:01:07]} Bxd6 {[%emt 0:00:00]} 32. Qxd6 {[%emt 0:00:05]} Qxd6 {[%emt 0:00:00]} 33. Rxd6 {[%emt 0:00:05]} Bc8 {[%emt 0:00:00]} 34. a4 {[%emt 0:00:19]} Ke7 {[%emt 0:00:00]} 35. Rc6 {[%emt 0:00:13]} Kd7 {[%emt 0:00:00]} 36. axb5 {[%emt 0:00:05]} axb5 {[%emt 0:00:00]} 37. Rb6 {[%emt 0:00:04]} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.17"]
[Round "5.4"]
[White "Stefansson, Hannes"]
[Black "Lalith Babu M R"]
[Result "1/2-1/2"]
[ECO "C92"]
[WhiteElo "2562"]
[BlackElo "2580"]
[Annotator "ChessBase"]
[PlyCount "102"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:00:08]} a6 {[%emt 0:00:00]} 4. Ba4 {[%emt 0:00:11]} Nf6 {[%emt 0:00:00]} 5. O-O {[%emt 0:00:24]} Be7 {[%emt 0:00:20]} 6. Re1 {[%emt 0:00:18]} b5 {[%emt 0:00:07]} 7. Bb3 {[%emt 0:00:21]} d6 {[%emt 0:00:06]} 8. c3 {[%emt 0:00:24]} O-O {[%emt 0:00:12]} 9. h3 {[%emt 0:00:34]} Bb7 {[%emt 0:08:40]} 10. d4 {[%emt 0:02:12]} Nd7 {[%emt 0:01:40]} 11. Nbd2 {[%emt 0:09:11]} Bf6 {[%emt 0:00:11]} 12. Nf1 {[%emt 0:02:24]} Na5 {[%emt 0:16:54]} 13. Bc2 {[%emt 0:00:22]} c5 {[%emt 0:00:04]} 14. dxc5 {[%emt 0:08:04]} dxc5 {[%emt 0:00:44]} 15. Ne3 {[%emt 0:06:08]} g6 {[%emt 0:04:01]} 16. Qe2 {[%emt 0:05:50]} Bg7 {[%emt 0:01:17]} 17. Rd1 {[%emt 0:00:48]} Qc7 {[%emt 0:03:01]} 18. a4 {[%emt 0:16:15]} b4 {[%emt 0:03:55]} 19. cxb4 {[%emt 0:03:12]} cxb4 {[%emt 0:01:07]} 20. Bd2 {[%emt 0:03:38]} Nc6 {[%emt 0:01:21]} 21. Nd5 {[%emt 0:00:59]} Qb8 {[%emt 0:00:17]} 22. Nxb4 {[%emt 0:04:42]} Nd4 {[%emt 0:00:22]} 23. Nxd4 {[%emt 0:00:08]} exd4 {[%emt 0:00:03]} 24. Nd3 {[%emt 0:09:41]} Re8 {[%emt 0:03:30]} 25. f3 {[%emt 0:00:36]} a5 {[%emt 0:03:10]} 26. Bf4 {[%emt 0:01:04]} Qd8 {[%emt 0:00:19]} 27. Qd2 {[%emt 0:01:27]} Ba6 {[%emt 0:01:30]} 28. Rab1 {[%emt 0:02:35]} Rc8 {[%emt 0:07:57]} 29. b4 {[%emt 0:02:31]} axb4 {[%emt 0:00:13]} 30. Nxb4 {[%emt 0:00:37]} Bc4 {[%emt 0:00:10]} 31. Nd3 {[%emt 0:02:07]} Ba6 {[%emt 0:01:58]} 32. Nb4 {[%emt 0:05:38]} Bc4 {[%emt 0:00:40]} 33. Bg3 {[%emt 0:00:18]} Nc5 {[%emt 0:01:58]} 34. Bf2 {[%emt 0:00:41]} Ne6 {[%emt 0:00:26]} 35. Nd3 {[%emt 0:00:30]} Qd6 {[%emt 0:09:53]} 36. a5 {[%emt 0:00:47]} Ra8 {[%emt 0:02:15]} 37. Nb2 {[%emt 0:04:34]} Ba6 {[%emt 0:07:11]} 38. Nd3 {[%emt 0:00:07]} Bc4 {[%emt 0:00:25]} 39. Ra1 {[%emt 0:00:23]} Rec8 {[%emt 0:01:12]} 40. Qe1 {[%emt 0:03:52]} Bxd3 {[%emt 0:03:10]} 41. Bxd3 {[%emt 0:30:05]} Nf4 {[%emt 0:30:07]} 42. Qf1 {[%emt 0:03:21]} Be5 {[%emt 0:01:33]} 43. a6 {[%emt 0:00:00]} Nxd3 {[%emt 0:00:00]} 44. Qxd3 {[%emt 0:00:00]} Rc6 {[%emt 0:00:00]} 45. a7 {[%emt 0:00:00]} Rc7 {[%emt 0:00:00]} 46. f4 {[%emt 0:00:00]} Bxf4 {[%emt 0:00:00]} 47. Bxd4 {[%emt 0:00:00]} Qe7 {[%emt 0:00:00]} 48. Qa6 {[%emt 0:00:00]} Qxe4 {[%emt 0:00:00]} 49. Qf6 {[%emt 0:00:00]} Be3+ {[%emt 0:00:00]} 50. Kh1 {[%emt 0:00:00]} Bxd4 {[%emt 0:00:00]} 51. Rxd4 {[%emt 0:00:00]} Qe7 {[%emt 0:00:00]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.17"]
[Round "5.5"]
[White "Das, Arghyadip"]
[Black "Van der Wiel, John T.H."]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2439"]
[BlackElo "2380"]
[Annotator "NA"]
[PlyCount "81"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:06]} 3. Bb5 {[%emt 0:00:28]} g6 {[%emt 0:00:20]} 4. Bxc6 {[%emt 0:00:23]} bxc6 {[%emt 0:01:21]} 5. d4 {[%emt 0:00:20]} cxd4 {[%emt 0:01:11]} 6. Qxd4 {[%emt 0:00:04]} f6 {[%emt 0:03:02]} 7. O-O {[%emt 0:04:21]} Bg7 {[%emt 0:10:24]} 8. c4 {[%emt 0:00:59]} Nh6 {[%emt 0:00:36]} 9. Bxh6 {[%emt 0:00:31]} Bxh6 {[%emt 0:00:15]} 10. c5 {[%emt 0:00:04]} O-O {[%emt 0:06:15]} 11. Rd1 {[%emt 0:00:12]} Qc7 {[%emt 0:14:53]} 12. Na3 {[%emt 0:08:45]} Kh8 {[%emt 0:01:55]} 13. Rd3 {[%emt 0:23:19]} Rb8 {[%emt 0:08:30]} 14. Nc4 {[%emt 0:08:11]} Ba6 {[%emt 0:02:14]} 15. b3 {[%emt 0:00:30]} Rbd8 {[%emt 0:04:12]} 16. Rad1 {[%emt 0:07:18]} Bg7 {[%emt 0:04:04]} 17. Qc3 {[%emt 0:06:54]} Qf4 {[%emt 0:29:22]} 18. Nfd2 {[%emt 0:27:04]} Qg4 {[%emt 0:01:10]} 19. Re1 {[%emt 0:01:41]} Qe6 {[%emt 0:01:14]} 20. Qa5 {[%emt 0:00:55]} Bc8 {[%emt 0:02:00]} 21. Nf3 {[%emt 0:00:27]} d6 {[%emt 0:04:04]} 22. cxd6 {[%emt 0:02:00]} exd6 {[%emt 0:00:23]} 23. Qxa7 {[%emt 0:00:35]} d5 {[%emt 0:00:55]} 24. exd5 {[%emt 0:00:19]} Qf5 {[%emt 0:00:13]} 25. Red1 {[%emt 0:03:39]} Rxd5 {[%emt 0:01:03]} 26. Rxd5 {[%emt 0:00:04]} cxd5 {[%emt 0:00:06]} 27. Ne3 {[%emt 0:00:06]} Qe4 {[%emt 0:00:30]} 28. Rxd5 {[%emt 0:01:02]} f5 {[%emt 0:01:00]} 29. Rd1 {[%emt 0:00:54]} f4 {[%emt 0:00:22]} 30. Nf1 {[%emt 0:00:34]} Bg4 {[%emt 0:00:44]} 31. Re1 {[%emt 0:01:25]} Qf5 {[%emt 0:01:27]} 32. Qb7 {[%emt 0:00:54]} Qa5 {[%emt 0:01:07]} 33. Re7 {[%emt 0:00:54]} Bxf3 {[%emt 0:00:19]} 34. Qxf3 {[%emt 0:00:58]} Qxa2 {[%emt 0:00:15]} 35. h3 {[%emt 0:00:37]} Rb8 {[%emt 0:01:02]} 36. Rb7 {[%emt 0:00:32]} Rf8 {[%emt 0:00:21]} 37. Qd3 {[%emt 0:00:38]} Qb2 {[%emt 0:00:27]} 38. Nd2 {[%emt 0:00:32]} Qc1+ {[%emt 0:01:00]} 39. Kh2 {[%emt 0:00:25]} f3 {[%emt 0:00:35]} 40. gxf3 {[%emt 0:00:48]} Bc3 {[%emt 0:00:32]} 41. Qd7 {[%emt 0:01:17]} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.18"]
[Round "6.1"]
[White "Kuipers, Stefan"]
[Black "Van der Wiel, John T.H."]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2435"]
[BlackElo "2380"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,51,24,18,20,17,27,5,31,0,24,-39,-73,-78,-82,-52,-68,-122,-100,-95,-102,-116,-85,-82,-63,-94,-102,-87,-74,-73,-61,-61,-54,-70,-53,-47,-43,-45,0,-44,0,-60,0,-16]} 1. e4 c5 2. Nf3 d6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Nf6 6. Nb3 g6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} 7. Be2 (7. Be3 Bg7 8. Qd2 Ng4 9. Bg5 h6 10. Bh4 g5 11. Bg3 Nc6 12. Be2 Nge5 13. h4 gxh4 14. Bxh4 {0-1 (35) Alekseenko,K (2638)-Nepomniachtchi,I (2763) St Petersburg 2018}) 7... Nbd7 8. g4 h6 9. f4 b5 10. e5 $146 ({White should try} 10. a3 $11) ({Predecessor:} 10. Bf3 Bg7 11. Qe2 b4 12. Nd1 a5 13. c4 Bb7 14. Rb1 a4 15. Nd2 Nc5 16. Nf2 {0-1 (49) Nijboer,F (2525)-Sadler,M (2615) Yerevan 1996}) 10... Bb7 $15 11. Bf3 Bxf3 12. Qxf3 dxe5 13. f5 (13. Be3 $15) 13... gxf5 14. gxf5 Rc8 15. Qb7 {[#]} b4 $1 {[%mdl 512]} 16. Qxb4 Qb6 17. Qh4 Rg8 18. Bd2 Rg1+ 19. Rxg1 Qxg1+ 20. Ke2 Qg2+ 21. Qf2 Qg4+ 22. Qf3 $1 Qc4+ 23. Qd3 Qg4+ 24. Qf3 $1 Qc4+ 25. Qd3 $1 Qg4+ 26. Qf3 $1 {Accuracy: White = 59%, Black = 38%.} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.18"]
[Round "6.2"]
[White "Lalith Babu M R"]
[Black "Das, Arghyadip"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "2580"]
[BlackElo "2439"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,39,38,77,43,28,0,8,-14,-11,-16,-18,-22,0,0,0,0,0,-8,-7,0,0,0]} 1. c4 e6 2. Nc3 d5 3. d4 c6 4. e3 Bd6 5. Bd3 Nf6 6. Nf3 Nbd7 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 h6 11. Be3 $146 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} (11. Bc2 e5 12. b4 Re8 13. c5 Bc7 14. Re1 exd4 15. Rxe8+ Qxe8 16. Bb2 Ne5 17. Qxd4 Nxf3+ 18. gxf3 f6 19. Qd3 Qh5 20. h4 Be6 21. Bxf6 gxf6 22. Qh7+ Kf8 23. Qxc7 {½-½ (23) Matlakov,M (2693)-Mozharov,M (2555) Moscow 2015}) ({Predecessor:} 11. c5 Bc7 12. Be3 e5 13. Bc2 {½-½ (14) Mohr,G (2483)-Zupe,M (2385) Bled 1999}) 11... e5 12. Bc2 Re8 {The position is equal.} 13. c5 Bc7 14. dxe5 Nxe5 15. Nxe5 Qxd1 (15... Bxe5 {looks sharper.} 16. Qxd8 Rxd8 17. Rad1 Be6 18. Rxd8+ Rxd8 19. b3 f5) 16. Rfxd1 {[#] Nc4 is the strong threat.} Bxe5 17. Bd4 Bxd4 18. Rxd4 Be6 19. Rad1 Bd5 20. Kf1 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.18"]
[Round "6.3"]
[White "Pijpers, Arthur"]
[Black "Stefansson, Hannes"]
[Result "1-0"]
[ECO "C81"]
[WhiteElo "2474"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,73,31,8,36,38,61,53,41,47,45,50,56,50,81,75,60,70,68,50,48,49,94,10,14,5,29,0,15,0,36,-9,-9,-11,-11,-26,-29,-18,-19,-78,-70,-81,-78,-78,-78,-157,-154,-429]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 O-O 11. c4 bxc4 12. Bxc4 Bc5 13. Be3 Bxe3 14. Qxe3 Qb8 15. Bb3 $1 Ne7 {[#] C81: Open Ruy Lopez: Keres Variation (9 Qe2)} (15... Na5 {is more complex.} 16. Nbd2 Nxd2 17. Rxd2 Nxb3 18. axb3 Rc8) (15... Na5 16. Nbd2 Qa7 17. Nxe4 Qxe3 18. fxe3 Nxb3 19. axb3 dxe4 20. Nd4 c5 21. Nc6 Rfe8 22. Ra5 Bxb3 23. Rd6 h6 24. h4 h5 {½-½ (88) Giri,A (2782)-Mamedyarov,S (2801) chess.com INT 2018}) 16. Nbd2 $146 {[%cal Bb1d2,Bd2f1,Bf1e3][%mdl 32]} ({Predecessor:} 16. Nc3 Nxc3 17. Qxc3 a5 18. Qc5 a4 19. Qxe7 axb3 20. a4 Bg4 21. Rxd5 Bxf3 22. gxf3 Ra6 23. Rad1 {1-0 (37) Lu,S (2615)-Torre,E (2468) Olongapo City 2015}) 16... Qb6 17. Qxb6 cxb6 {White is slightly better.} 18. Nd4 {Threatens to win with Nxe4.} Nc5 19. Bc2 Bd7 20. Nf1 Nc6 21. Nxc6 Bxc6 22. Ne3 Rad8 23. Nf5 Rfe8 24. f4 g5 25. g3 (25. b4 $16 Ne6 26. fxg5) 25... gxf4 $11 26. gxf4 Ne6 27. Nd6 Re7 $1 28. Rf1 Kh8 29. f5 Ng5 $1 $36 {[%mdl 2048] [#] aiming for ...Rg8. Black has some pressure.} 30. Rae1 d4 {[%cal Rg5h3]} 31. h4 Nf3+ 32. Rxf3 Bxf3 33. Kf2 (33. f6 $11 {remains equal.} Rc7 34. Bb3) 33... Bd5 $17 {And now ...f6 would win.} 34. f6 $1 {[%cal Rf6e7]} Rc7 35. Be4 {[#]} Be6 $1 36. Rg1 (36. Kf3 $142) 36... Rg8 {Strongly threatening ...Rxg1.} ({Stronger than} 36... Bxa2 37. Rg7 $11) 37. Rg7 $2 {[%mdl 32768] Accuracy: White = 54%, Black = 50%. . Loss on time!?} (37. Rd1 $17) 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.18"]
[Round "6.4"]
[White "Nikolic, Predrag"]
[Black "Sengupta, Deep"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2574"]
[BlackElo "2558"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,113,8,0,15,-31,-19,-39,-15,-36,0,0,0,-16,-20,-13,-20,-48,-19,-54,-2,-2,-2,-76,-53,-59,-56,-52,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,36,29,29,29,34,33,37,33,43,16,235,234,310,315,323,298,527,501,620,629,594,568,530,266,257,240,228,227,398,398,768,479,829,844,923,911,3026,3001,29964,29965]} 1. Nf3 e6 2. g3 b5 3. d4 Bb7 4. Bg2 Nf6 5. O-O c5 6. c3 cxd4 7. cxd4 Be7 8. Bg5 O-O 9. Nbd2 d6 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems} (9... h6 10. Bxf6 Bxf6 11. Qb3 Qb6 12. a4 Nc6 13. e3 bxa4 14. Rxa4 Be7 15. Ne5 Nxe5 16. Bxb7 Rab8 17. Qxb6 axb6 {½-½ (79) Bindrich,F (2602)-Ider,B (2505) Karlsruhe 2018}) 10. Nb3 Nbd7 $146 {[%cal Bb8d7,Bd7f6,Bf6e4][%mdl 32]} ({Predecessor:} 10... Qb6 11. Be3 Bd5 12. Nc1 Nc6 13. h3 Qb7 14. Nd3 Rac8 15. Nf4 Be4 {0-1 (33) Pajukari,S (2042)-Illetsko,J (2253) ICCF email 2008}) 11. Qd3 Qb6 {Black is slightly better.} 12. Rfc1 Be4 13. Qc3 a5 14. Bxf6 Nxf6 15. Nbd2 Bb7 16. Qd3 Rac8 17. e4 d5 (17... b4 $15) 18. e5 $11 Ne4 19. Nf1 (19. Bf1 $11) 19... b4 20. Ne3 Ba6 21. Qd1 f5 ({Black should play} 21... Rcd8 $15) 22. exf6 $1 gxf6 23. Bf1 Bxf1 24. Qxf1 f5 25. Rxc8 Rxc8 26. Rc1 Rf8 27. Qd3 f4 28. Ng4 Bd6 29. Rc2 a4 30. Kg2 b3 31. axb3 axb3 32. Re2 Qb7 33. Nge5 Kh8 34. Kf1 Bb8 35. g4 Rc8 36. Qd1 Qb5 37. Nd3 Ba7 38. Kg2 Rf8 39. h3 Qb7 40. Re1 Qg7 41. Nde5 Rc8 42. Re2 Kg8 $2 (42... Rf8 $11 {and Black is okay.}) 43. Qxb3 $18 {[#] Strongly threatening Rxe4!} Kh8 44. Rc2 Rf8 45. Qa4 h5 $2 (45... Bb8 46. Qa6 Bxe5) 46. Qa6 hxg4 47. hxg4 Bxd4 48. Qxe6 {[#] Ng6+ is the strong threat.} ({Not} 48. Nxd4 Qxe5 49. Rc8 (49. Nxe6 f3+ 50. Kg1 Rg8 $11) 49... f3+ 50. Nxf3 Qf6 $18) 48... Bxe5 49. Qxe5 Qxe5 50. Nxe5 {[%mdl 4096] Endgame Threatens to win with Ng6+. KRN-KRN} Kg8 51. f3 Ng5 $2 (51... Nd6 52. b4 Rb8) 52. Rc6 Nh7 $2 (52... Kh7 53. Nd3 d4) 53. Rg6+ Kh8 54. b4 {[%cal Bb2b4,Bb4b5,Bb5b6,Bb6b7][%mdl 32]} Nf6 55. b5 Kh7 56. b6 Re8 57. b7 {Accuracy: White = 62%, Black = 44%.} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.18"]
[Round "6.5"]
[White "Pruijssers, Roeland"]
[Black "Schekachikhin, Maksim"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2534"]
[BlackElo "2415"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,41,18,11,19,24,20,9,13,6,14,0,22,0,13,10,12,14,31,21,41,41,41,42,41,8,13,12,19,0,0,0]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. O-O c5 7. dxc5 Nec6 {B12: Caro-Kann: Advance Variation} 8. Be3 Nd7 9. c4 dxc4 10. Na3 Bxc5 11. Nxc4 {And now Bxc5 would win.} O-O 12. Nd4 $146 ({Predecessor:} 12. Bf4 Nb6 13. Nd6 Bxd6 14. exd6 Qf6 {½-½ (93) Borisek,J (2576)-Nisipeanu,L (2668) Bled 2016}) 12... Be4 13. Rc1 Bxd4 14. Bxd4 Qg5 {[%csl Ge4][%cal Rg5g2]} 15. g3 Nxd4 16. Qxd4 {[%mdl 64] [#] Double Attack} Bd5 17. f4 Qe7 18. Nd6 f6 {The position is equal.} 19. Nf5 Qd8 20. exf6 Nxf6 21. Bc4 {Accuracy: White = 68%, Black = 60%.} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.19"]
[Round "7.1"]
[White "Schekachikhin, Maksim"]
[Black "Kuipers, Stefan"]
[Result "1/2-1/2"]
[ECO "A77"]
[WhiteElo "2415"]
[BlackElo "2435"]
[Annotator "ChessBase"]
[PlyCount "78"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:32]} c5 {[%emt 0:00:00]} 3. d5 {[%emt 0:00:09]} e6 {[%emt 0:00:00]} 4. Nc3 {[%emt 0:00:40]} exd5 {[%emt 0:00:00]} 5. cxd5 {[%emt 0:00:07]} d6 {[%emt 0:00:03]} 6. Nf3 {[%emt 0:01:07]} g6 {[%emt 0:00:07]} 7. Nd2 {[%emt 0:00:10]} Bg7 {[%emt 0:00:13]} 8. e4 {[%emt 0:00:07]} O-O {[%emt 0:00:18]} 9. Be2 {[%emt 0:00:06]} Re8 {[%emt 0:00:42]} 10. O-O {[%emt 0:00:18]} Nbd7 {[%emt 0:00:10]} 11. a4 {[%emt 0:01:02]} Ne5 {[%emt 0:00:17]} 12. Ra3 {[%emt 0:00:45]} a6 {[%emt 0:01:09]} 13. Qc2 {[%emt 0:11:05]} Bg4 {[%emt 0:04:11]} 14. Bxg4 {[%emt 0:21:46]} Nfxg4 {[%emt 0:00:58]} 15. h3 {[%emt 0:04:38]} Nh6 {[%emt 0:02:22]} 16. a5 {[%emt 0:07:00]} f5 {[%emt 0:06:11]} 17. Ne2 {[%emt 0:07:28]} Qh4 {[%emt 0:11:52]} 18. exf5 {[%emt 0:10:42]} Nxf5 {[%emt 0:00:43]} 19. Ra4 {[%emt 0:00:25]} Nd4 {[%emt 0:12:23]} 20. Nxd4 {[%emt 0:02:52]} cxd4 {[%emt 0:00:11]} 21. Qb3 {[%emt 0:07:00]} Rf8 {[%emt 0:07:23]} 22. Nc4 {[%emt 0:08:09]} Rac8 {[%emt 0:14:43]} 23. Bd2 {[%emt 0:02:53]} Nf3+ {[%emt 0:18:31]} 24. gxf3 {[%emt 0:00:57]} Qxh3 {[%emt 0:00:06]} 25. Ra3 {[%emt 0:08:24]} Rf5 {[%emt 0:01:43]} 26. f4 {[%emt 0:00:43]} d3 {[%emt 0:00:19]} 27. Qxd3 {[%emt 0:00:42]} Qxd3 {[%emt 0:00:07]} 28. Rxd3 {[%emt 0:00:05]} Rxc4 {[%emt 0:00:06]} 29. Rc1 {[%emt 0:01:45]} Rxc1+ {[%emt 0:07:07]} 30. Bxc1 {[%emt 0:00:03]} Rf7 {[%emt 0:00:28]} 31. b3 {[%emt 0:00:56]} Kf8 {[%emt 0:01:40]} 32. Ba3 {[%emt 0:00:17]} Ke7 {[%emt 0:00:41]} 33. Re3+ {[%emt 0:02:16]} Kd7 {[%emt 0:00:06]} 34. Re4 {[%emt 0:00:38]} Bc3 {[%emt 0:01:35]} 35. Bb4 {[%emt 0:00:39]} Bb2 {[%emt 0:00:31]} 36. Re6 {[%emt 0:00:50]} Rf6 {[%emt 0:00:07]} 37. Rxf6 {[%emt 0:00:33]} Bxf6 {[%emt 0:00:07]} 38. Kg2 {[%emt 0:00:05]} Bd4 {[%emt 0:03:48]} 39. Kg3 {[%emt 0:01:01]} Ke7 {[%emt 0:06:10]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.19"]
[Round "7.2"]
[White "Sengupta, Deep"]
[Black "Pruijssers, Roeland"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "2558"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,77,29,22,26,25,50,54,187,43,86,59,96,90,83,77,168,159,158,172,224,237,275,252,272,237,266,257,262,257,239,224,359,372,356,375,358,365,324,324,385,219,214,185,770,360,895,568,1463,692,1116,552,539,514,6295,6233,2151,896,880,865,29980,29981,29981,842]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. a3 b5 8. Nxc6 Qxc6 9. Be2 Bb7 {B49: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 7 Be2} 10. O-O (10. Qd2 Be7 11. O-O Bf6 12. Bd4 Qd6 13. Rfd1 Qxd4 14. Qxd4 Bxd4 15. Rxd4 Ne7 16. Rad1 Bc6 17. f3 {0-1 (44) Schroeder,J (2571)-Rapport,R (2726) Germany 2019}) 10... Bc5 11. Bd4 f6 {[#]} (11... Nf6 $14) 12. Bh5+ $146 (12. Bxb5 $1 $18 {[%mdl 512]} axb5 13. Qh5+ {[%mdl 64] Double Attack} g6 14. Qxc5 Qxc5 15. Bxc5) ({Predecessor:} 12. Bxb5 axb5 13. Qh5+ g6 14. Qxc5 Qxc5 15. Bxc5 Bc6 16. Rad1 Ne7 17. Rfe1 {1-0 (26) Cornette,M (2587)-Lombaers,P (2372) Caleta 2019}) 12... g6 $14 {White must now prevent ...Bxd4.} 13. Bf3 {e5 is the strong threat.} e5 14. Bxc5 Qxc5 15. Qd2 h5 {[#]} (15... Ne7 $16) 16. Rfd1 $1 $36 {[%mdl 2048] White is in control.} Bc6 17. b4 Qb6 {[#]} (17... Qd4 {might work better.}) 18. a4 $1 Rd8 19. axb5 axb5 20. Ra5 d6 21. Nd5 Qb7 22. Be2 Rh7 23. c4 bxc4 (23... Kf8 $142 24. cxb5 Bxd5) 24. Bxc4 Kf8 25. b5 Bxd5 26. Bxd5 (26. exd5 Rc7 $16) 26... Qb6 27. Qb4 Ne7 28. Ra6 (28. Bb3 $142) 28... Nxd5 29. Rxd5 Rc7 $2 (29... Ra7 30. Rxa7 {[%mdl 64] Overworked Piece} (30. Rxb6 $2 Ra1+ 31. Rd1 Rxd1+ 32. Qe1 Rxe1#) (30. Rxd6 Rxd6 31. Rxa7 Qd4 $16) 30... Qxa7 31. Rxd6 Kg7) 30. Qd2 (30. Rxb6 $2 {gets mated.} Rc1+ 31. Rd1 Rxd1+ 32. Qe1 Rxe1#) (30. g3 $142 Rc1+ 31. Kg2) 30... Qb7 $2 (30... Qb8 31. b6 (31. Raxd6 Rxd6 32. Rxd6 Ke7 $16) (31. Rdxd6 Kg7 $16) 31... Rh7) 31. Qh6+ {[%mdl 64] Double Attack} Kf7 32. h4 (32. Raxd6 $142 Rxd6 33. Rxd6) 32... Qc8 33. Qh7+ (33. Rdxd6 $142 Rxd6 34. Rxd6) 33... Kf8 34. Qxg6 Rg7 (34... Qe6 $142 35. Qxh5 Rcd7) 35. Qxf6+ Kg8 36. Raxd6 (36. Rc6 $142 Qa8 37. Rcxd6 Rxd6 38. Rxd6) 36... Rxd6 37. Rxd6 {Strongly threatening Rd8+.} Kh7 38. Qh6+ Kg8 39. Qe6+ {Accuracy: White = 53%, Black = 19%.} (39. Qxh5 $142 Kf8 40. Qh8+ Ke7 41. Qxc8 Kxd6 42. Qc6+ Ke7 43. b6 Rf7 44. b7) 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.19"]
[Round "7.3"]
[White "Stefansson, Hannes"]
[Black "Nikolic, Predrag"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2562"]
[BlackElo "2574"]
[Annotator "ChessBase"]
[PlyCount "30"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. exd5 {[%emt 0:00:12]} exd5 {[%emt 0:00:04]} 4. Nf3 {[%emt 0:00:14]} Nf6 {[%emt 0:01:42]} 5. Bd3 {[%emt 0:00:34]} Bg4 {[%emt 0:02:30]} 6. O-O {[%emt 0:00:59]} Be7 {[%emt 0:00:07]} 7. Bg5 {[%emt 0:03:28]} O-O {[%emt 0:02:48]} 8. Nbd2 {[%emt 0:02:38]} Nbd7 {[%emt 0:07:13]} 9. c3 {[%emt 0:01:44]} c5 {[%emt 0:01:58]} 10. dxc5 {[%emt 0:12:40]} Nxc5 {[%emt 0:00:55]} 11. Be2 {[%emt 0:02:30]} Ncd7 {[%emt 0:07:38]} 12. Bd3 {[%emt 0:00:02]} Nc5 13. Be2 {[%emt 0:00:01]} Qb6 {[%emt 0:00:00]} 14. Nb3 {[%emt 0:01:37]} Nce4 {[%emt 0:00:00]} 15. Be3 {[%emt 0:00:48]} Qc7 {[%emt 0:00:27]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.19"]
[Round "7.4"]
[White "Das, Arghyadip"]
[Black "Pijpers, Arthur"]
[Result "0-1"]
[ECO "B04"]
[WhiteElo "2439"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,70,35,38,42,0,0,0,0,-1,-4,-7,0,0,0,0,0,-21,-17,-53,-60,-85,-72,-85,-82,-79,-34,-46,-40,-47,-49,-98,-93,-112,-107,-143,-18,-20,-17,-32,-32,-37,-37,-31,-11,-35,-38,-114,-19,-260,-289,-298,-279,-609,-588,-29984,-29985]} 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. Ng5 e6 8. Qf3 Qe7 9. Ne4 {Bg5 is the strong threat.} h6 {B04: Alekhine's Defence: 4 Nf3} 10. Bf4 {[%cal Re5d6]} dxe5 (10... Nc6 11. exd6 Nxd4 12. dxe7 Nxf3+ 13. gxf3 Bxb2 14. Nbc3 Bxa1 15. Be5 f5 16. Bxh8 fxe4 17. Rg1 {0-1 (51) Pourramezanali,A (2528)-Firouzja,A (2618) Bushehr 2019}) 11. Bxe5 f5 {[#] aiming for ...Bxe5.The position is equal.} 12. Ned2 $146 ({Predecessor:} 12. Bxg7 Qxg7 13. Ned2 Qxd4 14. Nc3 Nc6 15. O-O-O Qg7 16. Qg3 O-O 17. f4 Kh8 18. Nf3 e5 19. Nxe5 Nxe5 20. fxe5 f4 21. Qf3 Qxe5 22. Rhe1 Qg7 23. Re4 Bd7 24. Rxf4 {½-½ (24) Mullon,J (2336)-Janev,E (2502) Saint Affrique 2008}) 12... Bxe5 13. dxe5 Nc6 14. Nc3 Bd7 15. Qe3 O-O-O 16. h4 Na5 17. a3 Nxb3 18. cxb3 Bc6 19. f3 Kb8 20. O-O-O g5 21. hxg5 hxg5 22. Rxh8 Rxh8 23. Nc4 Nd5 24. Nxd5 Bxd5 25. Qd4 Rh2 (25... b6 $17 26. Kb1 Rh2) 26. Ne3 $11 c6 $36 {[%mdl 2048] Black fights for an advantage.} 27. b4 f4 28. Nxd5 cxd5 $15 {[%mdl 4096] Endgame KQR-KQR} 29. Rg1 b6 30. b3 Qh7 31. Kb2 (31. b5 $15) 31... Rh1 (31... Qh4 $17 {And now ...Qg3 would win.} 32. Ka1 Rh1) 32. Rd1 $2 {[#]} (32. b5 $11 {and White is okay.}) 32... Qh2 $19 33. Rd2 Rg1 34. g4 $2 (34. Qd3 Rxg2 35. Rxg2 Qxg2+ 36. Kb1) 34... fxg3 35. b5 Rg2 {Accuracy: White = 26%, Black = 55%.} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.19"]
[Round "7.5"]
[White "Van der Wiel, John T.H."]
[Black "Lalith Babu M R"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "2380"]
[BlackElo "2580"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,82,10,6,7,-22,-20,-21,-20,-14,-14,-8,22,-25,-38,-27,-40,-33,-31,-35,-16,-47,-16,-26,-12,-24,-10,-27,0,-45,-25,-25,-18,-32,0,0,22,0,0,-9,8,11,33,22,74,22,86,13,110,0,22,-2,0,0,0,0,0,0,0,-295,-279,-1104,-1096,-1063,-1003,-1924,-1818,-29988,-934]} 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 {[%cal Bb8c6,Bc6a5,Ba5c4][%mdl 32]} 7. Ndf3 Qb6 8. a3 Be7 9. Ne2 O-O {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} 10. h4 f6 11. Qd3 $146 ({Predecessor:} 11. Rh3 Na5 12. b4 cxb4 13. axb4 Nc4 14. Ng3 {½-½ (74) Ponomariov,R (2694)-Tomczak,J (2588) Katowice 2017}) 11... Na5 {The position is equal.} 12. b4 cxb4 13. axb4 Nc4 (13... Nb3 {looks sharper.} 14. Ra2 a5 15. Be3 Qc7 16. g4 Nb6) 14. Nd2 (14. h5 {seems wilder.} a5 15. g4 Qd8 16. Bg2 b6 17. Qc2) 14... fxe5 15. Nxc4 dxc4 16. Qxc4 exd4 17. Nxd4 Nf6 18. Bd3 Nd5 19. Ne2 Bd7 20. Qe4 Nf6 $1 {[%cal Rf6e4]} 21. Qe3 Qd6 22. Ba3 b5 23. Rd1 {Threatens to win with Bxh7+!} Qa6 24. Bc1 Rac8 25. O-O Nd5 26. Qe4 Qb6+ 27. Kh1 Rf5 {And now ...Rh5! would win.} 28. Qf3 $1 Rf6 29. f5 Bc6 (29... Nxc3 $11 30. Be3 Qb8 31. Nxc3 Rxc3) 30. Qg3 (30. Qh3 $16) 30... exf5 (30... Qc7 $11 {remains equal.}) 31. Bg5 (31. Bxf5 $16 Rcf8 32. Nd4) 31... Rcf8 (31... Re8 $1 $11 {keeps the balance.} 32. Nd4 (32. Bxf6 Bxf6 33. Rxf5 Ne3 $11 {[%mdl 64] Double Attack}) 32... Bd6) 32. Bxf6 ({White should try} 32. Bb1 $16 {Ba2 is the strong threat.} R6f7 33. Nd4) 32... Bxf6 33. Bxf5 {aiming for Be6+.} Ne3 $1 $36 {[%mdl 2112] Double Attack. Black fights for an advantage.} 34. Be6+ Kh8 35. Rxf6 $1 {[%cal Rf6f8]} Bxg2+ (35... Rxf6 $2 {perishes.} 36. Qxe3 $1 {[%mdl 512]} Rxe6 37. Qxe6 $18) ({Much worse is} 35... gxf6 $6 36. Rd6 $16) 36. Kh2 {[%cal Rf6f8]} ({Avoid the trap} 36. Qxg2 $2 gxf6 37. Qf3 Nxd1 $19) 36... gxf6 37. Rd6 $2 {[%mdl 8192] [#]} (37. Qd6 $1 $11 {and White is okay.} Re8 38. Qxb6 axb6 39. Rd6) 37... Ba8 $1 $19 {Hoping for ...Nf1+.} 38. Qf4 $2 (38. Rxb6 Nf1+ {[%mdl 64] Double Attack, Zwischenzug} 39. Kh3 Nxg3 40. Kxg3 axb6 41. Nd4) 38... Qb7 {[%csl Ga8,Ge3][%cal Rb7g2]} 39. Qf2 f5 {( -> ...Qh1+)} 40. Kg3 Qg7+ 41. Kf4 Ng2+ {Accuracy: White = 36%, Black = 39%.} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.20"]
[Round "8.1"]
[White "Kuipers, Stefan"]
[Black "Lalith Babu M R"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2435"]
[BlackElo "2580"]
[Annotator "ChessBase"]
[PlyCount "71"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:03:02]} g6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:06]} Bg7 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:06]} d6 {[%emt 0:00:00]} 4. Be3 {[%emt 0:00:35]} a6 {[%emt 0:00:00]} 5. g4 {[%emt 0:00:55]} b5 {[%emt 0:00:42]} 6. Bg2 {[%emt 0:01:41]} Bb7 {[%emt 0:00:11]} 7. Nge2 {[%emt 0:01:42]} b4 {[%emt 0:01:21]} 8. Nd5 {[%emt 0:04:04]} a5 {[%emt 0:01:58]} 9. O-O {[%emt 0:04:15]} Nd7 {[%emt 0:02:57]} 10. c3 {[%emt 0:04:00]} e6 {[%emt 0:10:12]} 11. Ndf4 {[%emt 0:00:10]} e5 {[%emt 0:00:06]} 12. Nd3 {[%emt 0:02:01]} Ngf6 {[%emt 0:17:07]} 13. f3 {[%emt 0:03:54]} h5 {[%emt 0:00:06]} 14. g5 {[%emt 0:07:28]} Nh7 {[%emt 0:00:10]} 15. h4 {[%emt 0:00:17]} O-O {[%emt 0:01:38]} 16. f4 {[%emt 0:07:13]} exd4 {[%emt 0:06:30]} 17. Bxd4 {[%emt 0:04:19]} Bxd4+ {[%emt 0:15:16]} 18. cxd4 {[%emt 0:01:18]} c5 {[%emt 0:00:06]} 19. d5 {[%emt 0:06:53]} c4 {[%emt 0:01:20]} 20. Nf2 {[%emt 0:00:44]} Qb6 {[%emt 0:01:06]} 21. Bh3 {[%emt 0:07:54]} Nc5 {[%emt 0:01:12]} 22. Kg2 {[%emt 0:02:19]} Rae8 {[%emt 0:07:18]} 23. Qd4 {[%emt 0:02:49]} Ba6 {[%emt 0:06:57]} 24. Rfe1 {[%emt 0:01:02]} Rb8 {[%emt 0:02:36]} 25. f5 {[%emt 0:09:38]} Rfe8 {[%emt 0:01:21]} 26. Kg3 {[%emt 0:05:02]} Na4 {[%emt 0:01:12]} 27. fxg6 {[%emt 0:00:45]} fxg6 {[%emt 0:00:07]} 28. Be6+ {[%emt 0:02:22]} Rxe6 {[%emt 0:00:41]} 29. Qxb6 {[%emt 0:00:45]} Rxb6 {[%emt 0:00:44]} 30. dxe6 {[%emt 0:00:05]} Nxb2 {[%emt 0:00:07]} 31. Nf4 {[%emt 0:00:22]} Kg7 {[%emt 0:00:15]} 32. e5 {[%emt 0:03:29]} Bb5 {[%emt 0:01:35]} 33. Nd5 {[%emt 0:00:36]} Rc6 {[%emt 0:00:30]} 34. e7 {[%emt 0:03:18]} Kf7 {[%emt 0:00:37]} 35. e6+ {[%emt 0:00:50]} Ke8 {[%emt 0:00:03]} 36. Ne4 {[%emt 0:00:21]} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.20"]
[Round "8.2"]
[White "Pijpers, Arthur"]
[Black "Van der Wiel, John T.H."]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2474"]
[BlackElo "2380"]
[Annotator "ChessBase"]
[PlyCount "130"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. Nge2 {[%emt 0:00:00]} Nc6 {[%emt 0:00:12]} 4. d4 {[%emt 0:00:06]} cxd4 {[%emt 0:00:11]} 5. Nxd4 {[%emt 0:00:04]} Nf6 {[%emt 0:00:14]} 6. f3 {[%emt 0:02:44]} e6 {[%emt 0:13:01]} 7. Be3 {[%emt 0:01:15]} a6 {[%emt 0:01:22]} 8. Qd2 {[%emt 0:00:15]} Be7 {[%emt 0:07:59]} 9. O-O-O {[%emt 0:00:18]} Nxd4 {[%emt 0:12:50]} 10. Bxd4 {[%emt 0:00:22]} e5 {[%emt 0:00:47]} 11. Be3 {[%emt 0:00:35]} Be6 {[%emt 0:00:16]} 12. g4 {[%emt 0:15:27]} Qa5 {[%emt 0:05:33]} 13. Qf2 {[%emt 0:03:17]} Nd7 {[%emt 0:06:58]} 14. Kb1 {[%emt 0:01:18]} Rc8 {[%emt 0:00:28]} 15. Nd5 {[%emt 0:01:55]} Bd8 {[%emt 0:02:38]} 16. h4 {[%emt 0:17:55]} Nf6 {[%emt 0:02:59]} 17. Nxf6+ {[%emt 0:08:34]} gxf6 {[%emt 0:01:14]} 18. a3 {[%emt 0:03:27]} Rc6 {[%emt 0:02:45]} 19. Rh2 {[%emt 0:10:46]} Bb6 {[%emt 0:05:50]} 20. Bxb6 {[%emt 0:01:59]} Qxb6 {[%emt 0:02:19]} 21. Qd2 {[%emt 0:02:13]} Ke7 {[%emt 0:03:10]} 22. g5 {[%emt 0:04:00]} Rhc8 {[%emt 0:16:07]} 23. gxf6+ {[%emt 0:02:59]} Kd7 {[%emt 0:00:13]} 24. Bd3 {[%emt 0:06:52]} Rc3 {[%emt 0:06:55]} 25. Qf2 {[%emt 0:04:05]} R8c5 {[%emt 0:02:46]} 26. f4 {[%emt 0:04:54]} Rxa3 {[%emt 0:00:57]} 27. f5 {[%emt 0:00:02]} Ba2+ {[%emt 0:00:24]} 28. Kc1 {[%emt 0:00:01]} Rb3 {[%emt 0:02:11]} 29. c3 {[%emt 0:02:55]} Kc7 {[%emt 0:02:08]} 30. Qf1 {[%emt 0:03:21]} a5 {[%emt 0:00:55]} 31. Rc2 {[%emt 0:00:39]} a4 {[%emt 0:00:13]} 32. Bc4 {[%emt 0:00:04]} a3 {[%emt 0:01:34]} 33. Bxb3 {[%emt 0:01:22]} Qxb3 {[%emt 0:00:20]} 34. Qd3 {[%emt 0:01:07]} Rc6 {[%emt 0:00:57]} 35. bxa3 {[%emt 0:01:28]} Bb1 {[%emt 0:00:32]} 36. Rdd2 {[%emt 0:01:08]} Bxc2 {[%emt 0:00:21]} 37. Rxc2 {[%emt 0:00:02]} Qxa3+ {[%emt 0:00:19]} 38. Kd2 {[%emt 0:00:01]} Qa7 {[%emt 0:00:31]} 39. Qe3 {[%emt 0:00:54]} Qa1 {[%emt 0:00:24]} 40. Rc1 {[%emt 0:01:00]} Qa2+ {[%emt 0:00:53]} 41. Rc2 {[%emt 0:30:11]} Qb1 {[%emt 0:01:43]} 42. Rc1 {[%emt 0:00:00]} Qb2+ {[%emt 0:01:49]} 43. Rc2 {[%emt 0:00:00]} Qb1 {[%emt 0:01:27]} 44. Qg3 {[%emt 0:00:00]} Ra6 {[%emt 0:01:41]} 45. Qe1 {[%emt 0:00:00]} Qxe1+ {[%emt 0:02:02]} 46. Kxe1 {[%emt 0:00:00]} Ra4 {[%emt 0:00:13]} 47. Re2 {[%emt 0:00:00]} Kc6 {[%emt 0:01:37]} 48. Kf2 {[%emt 0:00:00]} d5 {[%emt 0:06:30]} 49. exd5+ {[%emt 0:00:00]} Kxd5 {[%emt 0:00:09]} 50. Rd2+ {[%emt 0:00:00]} Kc6 {[%emt 0:00:13]} 51. Rd8 {[%emt 0:00:00]} Rf4+ {[%emt 0:03:07]} 52. Ke3 {[%emt 0:00:00]} Rxf5 {[%emt 0:00:10]} 53. Rh8 {[%emt 0:00:00]} Rxf6 {[%emt 0:01:59]} 54. Rxh7 {[%emt 0:00:04]} Kd5 {[%emt 0:02:18]} 55. Rh8 {[%emt 0:00:49]} Rc6 {[%emt 0:01:20]} 56. Rd8+ {[%emt 0:00:06]} Ke6 {[%emt 0:00:22]} 57. Re8+ {[%emt 0:00:19]} Kf5 {[%emt 0:02:41]} 58. Kd3 {[%emt 0:00:15]} b6 {[%emt 0:01:16]} 59. h5 {[%emt 0:03:04]} Kf4 {[%emt 0:01:28]} 60. c4 {[%emt 0:04:44]} Rh6 {[%emt 0:01:59]} 61. Rb8 {[%emt 0:00:36]} f5 {[%emt 0:00:12]} 62. Ke2 {[%emt 0:00:07]} e4 {[%emt 0:00:30]} 63. Kf2 {[%emt 0:00:41]} Rxh5 {[%emt 0:02:00]} 64. Rxb6 {[%emt 0:00:04]} Rh2+ {[%emt 0:00:11]} 65. Ke1 {[%emt 0:00:41]} Kf3 {[%emt 0:00:21]} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.20"]
[Round "8.3"]
[White "Nikolic, Predrag"]
[Black "Das, Arghyadip"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2574"]
[BlackElo "2439"]
[Annotator "ChessBase"]
[PlyCount "111"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:25]} 2. g3 {[%emt 0:00:29]} d5 {[%emt 0:00:26]} 3. Bg2 {[%emt 0:00:07]} Nf6 {[%emt 0:00:06]} 4. O-O {[%emt 0:00:13]} c5 {[%emt 0:00:14]} 5. d4 {[%emt 0:00:40]} Nc6 {[%emt 0:00:13]} 6. c4 {[%emt 0:00:23]} dxc4 {[%emt 0:00:11]} 7. Qa4 {[%emt 0:00:19]} Bd7 {[%emt 0:00:13]} 8. Qxc4 {[%emt 0:00:09]} b5 {[%emt 0:00:08]} 9. Qd3 {[%emt 0:00:28]} c4 {[%emt 0:00:13]} 10. Qd1 {[%emt 0:00:58]} Rc8 {[%emt 0:00:06]} 11. Bg5 {[%emt 0:01:21]} Be7 {[%emt 0:04:09]} 12. Nc3 {[%emt 0:00:38]} b4 {[%emt 0:13:27]} 13. Bxf6 {[%emt 0:09:46]} Bxf6 {[%emt 0:01:01]} 14. Ne4 {[%emt 0:00:28]} Be7 {[%emt 0:01:15]} 15. Rc1 {[%emt 0:07:22]} Na5 {[%emt 0:03:23]} 16. d5 {[%emt 0:03:09]} exd5 {[%emt 0:03:29]} 17. Qxd5 {[%emt 0:00:08]} O-O {[%emt 0:03:35]} 18. Rfd1 {[%emt 0:13:04]} Ba4 {[%emt 0:07:18]} 19. Rd2 {[%emt 0:00:10]} Qb6 {[%emt 0:04:20]} 20. Qf5 {[%emt 0:02:30]} g6 {[%emt 0:08:27]} 21. Qf4 {[%emt 0:01:14]} Rcd8 {[%emt 0:15:48]} 22. Ne5 {[%emt 0:07:22]} Bb5 {[%emt 0:04:11]} 23. Rxd8 {[%emt 0:06:20]} Qxd8 {[%emt 0:00:56]} 24. Ng4 {[%emt 0:00:21]} f6 {[%emt 0:01:13]} 25. Ne3 {[%emt 0:03:35]} Nc6 {[%emt 0:12:09]} 26. Nd5 {[%emt 0:06:17]} Kh8 {[%emt 0:02:57]} 27. Rd1 {[%emt 0:13:46]} f5 {[%emt 0:08:12]} 28. Ndc3 {[%emt 0:01:26]} Qb6 {[%emt 0:02:03]} 29. Nxb5 {[%emt 0:00:21]} fxe4 {[%emt 0:00:36]} 30. Qxe4 {[%emt 0:00:07]} Rxf2 {[%emt 0:00:09]} 31. Nd4 {[%emt 0:00:57]} Rf6 {[%emt 0:00:55]} 32. e3 {[%emt 0:03:06]} Rd6 {[%emt 0:02:42]} 33. Rf1 {[%emt 0:06:06]} Rxd4 {[%emt 0:00:04]} 34. exd4 {[%emt 0:00:08]} Qxd4+ {[%emt 0:00:04]} 35. Kh1 {[%emt 0:01:00]} Qxe4 {[%emt 0:00:44]} 36. Bxe4 {[%emt 0:00:03]} Ne5 {[%emt 0:00:24]} 37. Rc1 {[%emt 0:04:37]} Bc5 {[%emt 0:01:23]} 38. Bd5 {[%emt 0:04:12]} Bd4 {[%emt 0:00:52]} 39. Bxc4 {[%emt 0:00:12]} Bxb2 {[%emt 0:00:02]} 40. Rc2 {[%emt 0:00:07]} Bc3 {[%emt 0:00:19]} 41. Ba6 {[%emt 0:30:23]} Kg7 {[%emt 0:31:05]} 42. a3 {[%emt 0:03:08]} h5 {[%emt 0:00:00]} 43. axb4 {[%emt 0:00:00]} Bxb4 {[%emt 0:00:00]} 44. Rc7+ {[%emt 0:00:00]} Kh6 {[%emt 0:00:00]} 45. Kg2 {[%emt 0:00:00]} Kg5 {[%emt 0:00:00]} 46. h4+ {[%emt 0:00:00]} Kh6 {[%emt 0:00:00]} 47. Rxa7 {[%emt 0:00:00]} g5 {[%emt 0:00:00]} 48. Rb7 {[%emt 0:00:00]} Bd2 {[%emt 0:00:00]} 49. Rb2 {[%emt 0:00:00]} Be3 {[%emt 0:00:00]} 50. Re2 {[%emt 0:00:00]} Bd4 {[%emt 0:00:00]} 51. Re4 {[%emt 0:00:00]} Bc3 {[%emt 0:00:00]} 52. Be2 {[%emt 0:00:00]} Kg6 {[%emt 0:00:00]} 53. Ra4 {[%emt 0:00:00]} Nd7 {[%emt 0:00:00]} 54. Bd3+ {[%emt 0:00:00]} Kh6 {[%emt 0:00:00]} 55. Ra7 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 56. hxg5+ {[%emt 0:00:00]} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.20"]
[Round "8.4"]
[White "Pruijssers, Roeland"]
[Black "Stefansson, Hannes"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2534"]
[BlackElo "2562"]
[Annotator "ChessBase"]
[PlyCount "77"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:01:10]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:09]} Nc6 {[%emt 0:00:00]} 3. Bc4 {[%emt 0:00:04]} Bc5 {[%emt 0:00:00]} 4. O-O {[%emt 0:00:09]} Nf6 {[%emt 0:00:06]} 5. d3 {[%emt 0:00:06]} O-O {[%emt 0:00:13]} 6. h3 {[%emt 0:00:44]} d5 {[%emt 0:01:36]} 7. exd5 {[%emt 0:00:34]} Nxd5 {[%emt 0:00:21]} 8. Re1 {[%emt 0:00:34]} Be6 {[%emt 0:01:34]} 9. c3 {[%emt 0:01:18]} Bb6 {[%emt 0:05:27]} 10. b4 {[%emt 0:05:22]} f6 {[%emt 0:05:08]} 11. a4 {[%emt 0:03:14]} a5 {[%emt 0:09:28]} 12. b5 {[%emt 0:01:34]} Nce7 {[%emt 0:00:38]} 13. d4 {[%emt 0:04:38]} Ng6 {[%emt 0:02:19]} 14. Nbd2 {[%emt 0:10:12]} Bf7 {[%emt 0:09:47]} 15. Ba3 {[%emt 0:12:15]} Nxc3 {[%emt 0:06:33]} 16. Qb3 {[%emt 0:01:12]} exd4 {[%emt 0:00:57]} 17. Bxf8 {[%emt 0:00:09]} Qxf8 {[%emt 0:00:12]} 18. Ne4 {[%emt 0:01:42]} Nxe4 {[%emt 0:03:05]} 19. Rxe4 {[%emt 0:00:15]} Rd8 {[%emt 0:01:00]} 20. Rae1 {[%emt 0:01:13]} Bxc4 {[%emt 0:01:37]} 21. Qxc4+ {[%emt 0:00:04]} Qf7 {[%emt 0:00:08]} 22. Re8+ {[%emt 0:05:45]} Rxe8 {[%emt 0:00:06]} 23. Rxe8+ {[%emt 0:00:04]} Nf8 {[%emt 0:00:05]} 24. Nd2 {[%emt 0:03:19]} Qxc4 {[%emt 0:07:01]} 25. Nxc4 {[%emt 0:00:06]} Kf7 {[%emt 0:00:04]} 26. Ra8 {[%emt 0:04:40]} d3 {[%emt 0:12:24]} 27. Nxb6 {[%emt 0:07:54]} cxb6 {[%emt 0:00:07]} 28. Rd8 {[%emt 0:00:08]} Ne6 {[%emt 0:00:22]} 29. Rd7+ {[%emt 0:01:15]} Ke8 {[%emt 0:00:06]} 30. Rxd3 {[%emt 0:00:22]} Nc5 {[%emt 0:00:23]} 31. Rd4 {[%emt 0:00:08]} h5 {[%emt 0:01:54]} 32. f4 {[%emt 0:11:55]} g6 {[%emt 0:03:08]} 33. g4 {[%emt 0:04:50]} hxg4 {[%emt 0:00:26]} 34. hxg4 {[%emt 0:00:06]} Ke7 {[%emt 0:00:38]} 35. f5 {[%emt 0:02:21]} g5 {[%emt 0:01:55]} 36. Kf2 {[%emt 0:00:11]} Kf7 {[%emt 0:01:53]} 37. Kf3 {[%emt 0:00:39]} Ke7 {[%emt 0:00:09]} 38. Ke3 {[%emt 0:00:06]} Ke8 {[%emt 0:01:00]} 39. Rd6 {[%emt 0:02:22]} 1-0

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.20"]
[Round "8.5"]
[White "Schekachikhin, Maksim"]
[Black "Sengupta, Deep"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "2415"]
[BlackElo "2558"]
[Annotator "ChessBase"]
[PlyCount "56"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} f5 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:02:32]} Nf6 {[%emt 0:00:10]} 4. Bf4 {[%emt 0:00:14]} b6 {[%emt 0:01:33]} 5. e3 {[%emt 0:00:56]} Bb7 {[%emt 0:00:04]} 6. Be2 {[%emt 0:00:36]} Bb4+ {[%emt 0:04:23]} 7. Nbd2 {[%emt 0:02:50]} O-O {[%emt 0:00:07]} 8. O-O {[%emt 0:01:24]} Be7 {[%emt 0:01:04]} 9. h3 {[%emt 0:02:00]} c5 {[%emt 0:06:53]} 10. Rc1 {[%emt 0:09:21]} Ne4 {[%emt 0:06:08]} 11. Bh2 {[%emt 0:10:41]} Bf6 {[%emt 0:08:14]} 12. Qc2 {[%emt 0:08:16]} Na6 {[%emt 0:29:33]} 13. a3 {[%emt 0:05:26]} cxd4 {[%emt 0:00:54]} 14. Nxd4 {[%emt 0:10:09]} Nac5 {[%emt 0:00:36]} 15. N2f3 {[%emt 0:03:06]} g5 {[%emt 0:06:47]} 16. b4 {[%emt 0:01:52]} g4 {[%emt 0:00:11]} 17. hxg4 {[%emt 0:04:26]} fxg4 {[%emt 0:00:04]} 18. bxc5 {[%emt 0:01:22]} gxf3 {[%emt 0:06:08]} 19. Bxf3 {[%emt 0:02:15]} Nxc5 {[%emt 0:00:12]} 20. Bxb7 {[%emt 0:01:31]} Nxb7 {[%emt 0:00:01]} 21. Rcd1 {[%emt 0:04:10]} Qe7 {[%emt 0:00:39]} 22. Nb5 {[%emt 0:00:38]} Qg7 {[%emt 0:06:20]} 23. Nd6 {[%emt 0:08:38]} Nc5 {[%emt 0:00:12]} 24. Ne4 {[%emt 0:00:32]} Be7 {[%emt 0:00:44]} 25. Nxc5 {[%emt 0:01:10]} Bxc5 {[%emt 0:00:04]} 26. Bd6 {[%emt 0:02:56]} Rf5 {[%emt 0:08:06]} 27. Bxc5 {[%emt 0:02:10]} Rxc5 {[%emt 0:00:04]} 28. Rd4 {[%emt 0:00:36]} Kh8 {[%emt 0:08:10]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.21"]
[Round "9.1"]
[White "Sengupta, Deep"]
[Black "Kuipers, Stefan"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2558"]
[BlackElo "2435"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,96,3,5,0,21,21,21,32,49,44,38,44,59,17,73,66,109,100,119,110,121,58,57,41,116,115,128,126,106,127,124,104,110,100,91,86,71,13,12,0,0,0,0,0,0,0,0,-24,-17,-17,-23,-28,21,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,0,0,0,0,0,0,0,-8,-8,-8,-8]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bd3 Bxd3 6. Qxd3 e6 7. Bg5 {B12: Caro-Kann: Advance Variation} Qa5+ (7... Qb6 {is more complex.} 8. Nd2 c5 9. c4 Qxb2 10. Rb1 Qxd4 11. Qxd4 cxd4 12. cxd5 exd5 13. Ngf3 b6) (7... Be7 8. Nf3 Nh6 9. Nbd2 Nf5 10. Nf1 Qa5+ 11. c3 Qa6 12. Qd2 Nd7 13. Ng3 Nxg3 14. fxg3 f6 {½-½ (72) Inarkiev,E (2693)-Tomashevsky,E (2705) St Petersburg 2018}) 8. Nd2 Qa6 9. c4 Ne7 10. Ngf3 Nd7 11. O-O Nf5 12. b3 c5 (12... Ba3 $11) 13. Rfe1 $16 cxd4 $146 ({Predecessor:} 13... Rc8 14. Rad1 dxc4 15. Nxc4 {1-0 (60) Lopez Gracia,F (2302)-Gines Esteo,P (2319) Zaragoza 2017}) 14. Nxd4 Nxd4 15. Qxd4 Bc5 16. Qc3 (16. Qf4 $16) 16... Qb6 $14 17. Qg3 f6 (17... O-O $1 $14) 18. exf6 $16 O-O {[#]} 19. b4 $1 {[%cal Rb4c5]} Bd4 {[%mdl 64] Double Attack} 20. Nf3 {And now Be3 would win.} Nxf6 {[#]} 21. c5 $1 Qxb4 22. Rab1 Qa4 23. Bxf6 Bxf6 24. Rxe6 (24. Rxb7 $16 Qg4 25. Qd6) 24... Rf7 $11 25. Rbe1 Raf8 26. Qg6 Qg4 27. Qd3 Qc4 $1 {[%cal Rc4d3]} 28. Rd1 Qxa2 29. Qxd5 (29. c6 {feels hotter.} d4 30. Rd6 a5 31. Rd2 Qa1+ 32. Rd1) 29... Qxd5 30. Rxd5 Rc7 31. Ng5 a5 32. c6 {The position is equal.} bxc6 33. Rxa5 c5 34. Rxf6 gxf6 {[%mdl 4096] Endgame KRR-KRN} (34... Rxf6 $2 {loses.} 35. Ra8+ Rf8 36. Rxf8+ Kxf8 37. Ne6+ Ke7 38. Nxc7 $18) 35. Ne6 $1 {[%csl LRc5,LRc7,LRf8][%mdl 64] Double Attack} Rfc8 {Hoping for ...Rc6.} 36. Nxc7 Rxc7 {KR-KR} 37. Kf1 Kf7 38. Ra4 Ke6 39. g4 hxg4 40. Rxg4 c4 {Threatens to win with ...c3.} 41. Ke2 Kf5 42. f3 c3 {White must now prevent ...c2.} 43. Kd1 Re7 44. Kc2 Re2+ 45. Kxc3 Re3+ 46. Kd2 Rxf3 47. Ra4 Rf4 48. Rxf4+ Kxf4 {Accuracy: White = 57%, Black = 60%.} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.21"]
[Round "9.2"]
[White "Stefansson, Hannes"]
[Black "Schekachikhin, Maksim"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2562"]
[BlackElo "2415"]
[Annotator "ChessBase"]
[PlyCount "46"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. e5 {[%emt 0:00:15]} Bf5 {[%emt 0:00:08]} 4. Nf3 {[%emt 0:00:17]} e6 {[%emt 0:00:12]} 5. Be2 {[%emt 0:00:19]} Ne7 {[%emt 0:01:28]} 6. O-O {[%emt 0:00:25]} c5 {[%emt 0:02:40]} 7. c4 {[%emt 0:08:02]} Nbc6 {[%emt 0:00:33]} 8. dxc5 {[%emt 0:05:09]} d4 {[%emt 0:01:26]} 9. Qa4 {[%emt 0:04:51]} Ng6 {[%emt 0:07:09]} 10. Rd1 {[%emt 0:06:47]} d3 {[%emt 0:03:46]} 11. Be3 {[%emt 0:03:43]} Be7 {[%emt 0:22:11]} 12. Nc3 {[%emt 0:19:43]} O-O {[%emt 0:01:50]} 13. h3 {[%emt 0:05:07]} Ngxe5 {[%emt 0:07:32]} 14. Nxe5 {[%emt 0:00:18]} Nxe5 {[%emt 0:00:08]} 15. Bf4 {[%emt 0:09:45]} Nd7 {[%emt 0:17:21]} 16. b4 {[%emt 0:00:49]} Bf6 {[%emt 0:08:32]} 17. Bxd3 {[%emt 0:00:23]} Bxc3 {[%emt 0:08:13]} 18. Rac1 {[%emt 0:00:06]} Bb2 {[%emt 0:04:46]} 19. Bxf5 {[%emt 0:07:49]} Bxc1 {[%emt 0:00:09]} 20. Rxd7 {[%emt 0:02:19]} Qf6 {[%emt 0:03:46]} 21. Bxh7+ {[%emt 0:00:59]} Kxh7 {[%emt 0:00:04]} 22. Qc2+ {[%emt 0:00:39]} Qf5 {[%emt 0:01:03]} 23. Qxc1 {[%emt 0:00:19]} e5 {[%emt 0:00:11]} 0-1

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.21"]
[Round "9.3"]
[White "Das, Arghyadip"]
[Black "Pruijssers, Roeland"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2439"]
[BlackElo "2534"]
[Annotator "ChessBase"]
[PlyCount "38"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:01:32]} 2. g3 {[%emt 0:00:00]} d5 {[%emt 0:01:34]} 3. Bg2 {[%emt 0:00:00]} c6 {[%emt 0:01:00]} 4. O-O {[%emt 0:00:10]} Bg4 {[%emt 0:00:55]} 5. d3 {[%emt 0:00:12]} e6 {[%emt 0:00:15]} 6. h3 {[%emt 0:01:26]} Bh5 {[%emt 0:02:39]} 7. Qe1 {[%emt 0:00:05]} Nbd7 {[%emt 0:11:01]} 8. Nh4 {[%emt 0:00:49]} Qb6 {[%emt 0:04:32]} 9. a4 {[%emt 0:15:01]} Bc5 {[%emt 0:03:57]} 10. Kh1 {[%emt 0:12:13]} a5 {[%emt 0:15:12]} 11. f4 {[%emt 0:16:16]} Be3 {[%emt 0:10:26]} 12. Bxe3 {[%emt 0:04:48]} Qxe3 {[%emt 0:00:07]} 13. g4 {[%emt 0:02:36]} Bg6 {[%emt 0:00:16]} 14. Qf2 {[%emt 0:02:06]} Qxf2 {[%emt 0:00:48]} 15. Rxf2 {[%emt 0:00:00]} Nc5 {[%emt 0:00:16]} 16. Nd2 {[%emt 0:04:41]} Ke7 {[%emt 0:14:14]} 17. Ndf3 {[%emt 0:08:07]} Nfd7 {[%emt 0:07:02]} 18. Nd4 {[%emt 0:01:03]} f6 {[%emt 0:01:09]} 19. f5 {[%emt 0:03:40]} Bf7 {[%emt 0:00:26]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.21"]
[Round "9.4"]
[White "Van der Wiel, John T.H."]
[Black "Nikolic, Predrag"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2380"]
[BlackElo "2574"]
[Annotator "ChessBase"]
[PlyCount "27"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. Nd2 {[%emt 0:00:00]} a6 {[%emt 0:00:00]} 4. Ngf3 {[%emt 0:00:51]} Nf6 {[%emt 0:01:44]} 5. exd5 {[%emt 0:12:44]} exd5 {[%emt 0:00:21]} 6. Bd3 {[%emt 0:00:07]} Qe7+ {[%emt 0:01:38]} 7. Be2 {[%emt 0:01:34]} Nc6 {[%emt 0:03:22]} 8. O-O {[%emt 0:02:08]} Be6 {[%emt 0:00:04]} 9. c3 {[%emt 0:01:12]} h6 {[%emt 0:04:57]} 10. Re1 {[%emt 0:01:47]} Qd7 {[%emt 0:09:36]} 11. Bd3 {[%emt 0:07:40]} Be7 {[%emt 0:03:58]} 12. Ne5 {[%emt 0:01:22]} Nxe5 {[%emt 0:02:03]} 13. dxe5 {[%emt 0:00:22]} Ng8 {[%emt 0:05:07]} 14. Nf3 {[%emt 0:06:16]} 1/2-1/2

[Event "13th Leiden Crown Group 2019"]
[Site "Leiden"]
[Date "2019.07.21"]
[Round "9.5"]
[White "Lalith Babu M R"]
[Black "Pijpers, Arthur"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2580"]
[BlackElo "2474"]
[Annotator "ChessBase"]
[PlyCount "49"]
[EventDate "2019.07.08"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} g6 {[%emt 0:00:06]} 3. Nc3 {[%emt 0:00:25]} Bg7 {[%emt 0:00:05]} 4. e4 {[%emt 0:00:24]} d6 {[%emt 0:00:05]} 5. d4 {[%emt 0:00:05]} O-O {[%emt 0:00:05]} 6. h3 {[%emt 0:00:04]} e5 {[%emt 0:00:05]} 7. d5 {[%emt 0:00:05]} Nh5 {[%emt 0:00:04]} 8. g3 {[%emt 0:00:15]} f5 {[%emt 0:00:05]} 9. exf5 {[%emt 0:00:10]} gxf5 {[%emt 0:00:04]} 10. Nh4 {[%emt 0:00:10]} Nf4 {[%emt 0:00:39]} 11. gxf4 {[%emt 0:04:08]} Qxh4 {[%emt 0:00:14]} 12. Rg1 {[%emt 0:00:03]} Kh8 {[%emt 0:27:05]} 13. fxe5 {[%emt 0:02:49]} Bxe5 {[%emt 0:00:24]} 14. Bg5 {[%emt 0:01:13]} Qd4 {[%emt 0:00:07]} 15. Qxd4 {[%emt 0:00:54]} Bxd4 {[%emt 0:00:03]} 16. Nb5 {[%emt 0:00:04]} Bb6 {[%emt 0:01:05]} 17. c5 {[%emt 0:04:28]} dxc5 {[%emt 0:21:50]} 18. Bf4 {[%emt 0:01:53]} Ba5+ {[%emt 0:10:50]} 19. b4 {[%emt 0:04:08]} Bxb4+ {[%emt 0:00:06]} 20. Kd1 {[%emt 0:00:09]} Re8 {[%emt 0:03:19]} 21. Nxc7 {[%emt 0:01:38]} Re4 {[%emt 0:00:06]} 22. Bh6 {[%emt 0:04:37]} Bc3 {[%emt 0:06:01]} 23. Rc1 {[%emt 0:00:13]} Be5 {[%emt 0:00:26]} 24. Nxa8 {[%emt 0:00:25]} b6 {[%emt 0:04:19]} 25. Rc4 {[%emt 0:00:29]} 1-0

