[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.21"]
[Round "1.1"]
[White "Admiraal, Miguoel"]
[Black "Reinderman, Dimitri"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2501"]
[BlackElo "2582"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,134,13,14,15,15,15,19,17,13,12,-20,42,48,47,29,27,6,14,0,37,7,31,1,27,0,8,31,54,59,55,55,93,65,49,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-11,0,0,0,-74,-62,-87,-85,-122,-137,-96,-106,-162,-22,-141,-160,-175,-142,-194,-183,-216,-212,-360,-346,-342,-321,-214,-189,-182,-185,-151,-53,-104,0,-326,-325,-333,-304,-614,-579,-548,-562,-543,-499,-744,-658,-609,-371,-1247,-1237,-12812,-5402,-29971,-29973,-29974,-29975,-29974,-29975,-29975,-7188,-29978,-29979,-29982,-29980,-29979,-29980,-29983,-29984]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 e6 5. O-O a6 6. Bd3 Nxf3+ 7. Qxf3 Qc7 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} 8. b3 Bd6 9. Qh3 Ne7 {The position is equal.} 10. Bb2 b5 11. Rae1 Be5 (11... c4 $11 12. Be2 Bb7) 12. f4 $14 Bd4+ $1 13. Kh1 Bb7 {[#]} 14. Nd1 $146 ({Predecessor:} 14. f5 Qe5 15. Bc1 Qc7 16. a4 c4 17. bxc4 bxc4 18. Be2 O-O 19. Ba3 Rfe8 20. Qg4 {½-½ (35) Van Damme,L (2185)-Babychuk,V (2223) ICCF email 2015}) 14... Bxb2 15. Nxb2 Ng6 16. a4 Bc6 17. axb5 axb5 18. f5 Ne5 19. Qg3 g6 20. Be2 O-O-O 21. fxe6 fxe6 22. Qc3 Qd6 23. Nd3 (23. b4 $5 cxb4 24. Qe3 $11) 23... Nxd3 24. Bxd3 Rhf8 25. Qa5 Qc7 26. Qa6+ Qb7 27. Qa1 d6 28. Rxf8 Rxf8 29. Rf1 Rxf1+ 30. Qxf1 Qg7 31. h3 Kc7 32. Bxb5 Bxe4 33. Bd3 Bc6 34. Be2 Kb6 35. Bf3 {And now Bxc6 would win.} Qf6 36. Qd3 (36. Qe2 $11 {keeps the balance.}) 36... Qa1+ $1 $17 37. Kh2 Qe5+ 38. g3 Bxf3 $1 39. Qxf3 {[%mdl 4096] Endgame KQ-KQ} Qe1 $1 {[%cal Re1d2]} 40. Qd3 (40. Qg2 $17 {is a better defense.}) 40... Qf2+ $19 41. Kh1 d5 $1 42. g4 g5 43. c3 (43. Qxh7 $17 Qxd2 44. Qd3 Qe1+ 45. Kg2) 43... h6 44. b4 c4 45. Qb1 (45. Qc2 $142) 45... Qxd2 46. Qa1 Qe3 47. Kg2 Kc7 48. b5 {[#]} Qb6 $1 49. Qa4 e5 ({Better is} 49... Qb7 $17 {...Kb6 is the strong threat.} 50. Qa5+ Kd7) 50. Qb4 $15 Qd6 (50... Kb7 $17) 51. b6+ $2 {[%mdl 8192] [#] White is now going downhill.} (51. Qa5+ $1 $11 {and White stays safe.} Qb6 52. Qb4) 51... Kc6 $1 $19 {White must now prevent ...Qxb4.} ({Less strong is} 51... Qxb6 52. Qe7+ Kc6 53. Qxe5 $17) 52. Qa5 Qd8 53. Qa6 $2 (53. Qa3) 53... Qxb6 54. Qa8+ Kc7 55. Qa3 {and the idea Qe7+ leaves White hopeful.} Kd7 56. Qa4+ (56. Qa8 $142 Qb5 57. Qa7+ Ke6 58. Qf2) 56... Kd6 57. Qa3+ Ke6 58. Kf3 $2 (58. Qa4 Ke7 59. Qa3+ Ke6 60. Qa4) 58... e4+ 59. Ke2 d4 60. cxd4 Qxd4 61. Qa6+ Ke5 62. Qa5+ Kf4 63. Qc7+ Qe5 64. Qxc4 Qb2+ {Black mates.} 65. Kf1 Kg3 {[%csl Gg3][%cal Rb2f2]} 66. Qc7+ Kxh3 67. Qd6 Qg2+ {[%mdl 64] Double Attack. Accuracy: White = 58%, Black = 85%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.21"]
[Round "1.2"]
[White "Zwirs, Nico"]
[Black "Van Haastert, Edwin"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2443"]
[BlackElo "2438"]
[Annotator "NA"]
[PlyCount "62"]
[EventDate "2020.02.21"]
[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 0:01:00]} Nc6 {[%emt 0:00:00]} 3. Bc4 {[%emt 0:00:31]} Nf6 {[%emt 0:00:00]} 4. d3 {[%emt 0:00:27]} Bc5 {[%emt 0:00:00]} 5. c3 {[%emt 0:03:27]} a6 {[%emt 0:00:27]} 6. Nbd2 {[%emt 0:03:34]} Ba7 {[%emt 0:00:46]} 7. h3 {[%emt 0:04:16]} d6 {[%emt 0:00:25]} 8. Bb3 {[%emt 0:00:26]} O-O {[%emt 0:01:14]} 9. Nf1 {[%emt 0:00:18]} d5 {[%emt 0:04:38]} 10. Qe2 {[%emt 0:02:32]} Be6 {[%emt 0:02:43]} 11. Bg5 {[%emt 0:10:55]} dxe4 {[%emt 0:01:56]} 12. dxe4 {[%emt 0:00:15]} Bxb3 {[%emt 0:00:36]} 13. axb3 {[%emt 0:00:06]} h6 {[%emt 0:05:46]} 14. Bh4 {[%emt 0:07:59]} Qd6 {[%emt 0:01:51]} 15. Ne3 {[%emt 0:11:12]} Bxe3 {[%emt 0:06:41]} ({And not} 15... Nxe4 16. Nf5 $16 {[%mdl 64] Discovered Attack}) 16. Qxe3 {[%emt 0:00:16]} Rad8 {[%emt 0:07:27]} 17. O-O {[%emt 0:17:17]} Qe6 $11 {[%emt 0:04:24]} 18. Bxf6 {[%emt 0:08:34]} Qxf6 {[%emt 0:00:13]} 19. Rfd1 {[%emt 0:00:07]} Rxd1+ {[%emt 0:14:17]} 20. Rxd1 {[%emt 0:00:16]} Rd8 {[%emt 0:00:05]} 21. Rd5 {[%emt 0:01:23]} Rxd5 {[%emt 0:10:57]} 22. exd5 {[%emt 0:00:08]} Ne7 {[%emt 0:00:05]} 23. c4 {[%emt 0:09:13]} Ng6 {[%emt 0:00:20]} 24. Qe4 {[%emt 0:04:34]} b6 {[%emt 0:02:12]} 25. h4 {[%emt 0:01:59]} a5 {[%emt 0:03:34]} 26. h5 {[%emt 0:03:27]} Nf4 {[%emt 0:00:26]} 27. Nxe5 {[%emt 0:01:03]} Nxh5 {[%emt 0:01:42]} 28. Nc6 {[%emt 0:04:13]} Qxb2 {[%emt 0:05:12]} 29. Qe8+ {[%emt 0:00:11]} Kh7 {[%emt 0:00:05]} 30. Qxf7 {[%emt 0:00:11]} Nf6 {[%emt 0:00:34]} 31. Qxc7 {[%emt 0:02:18]} Ng4 {[%emt 0:00:39]} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.21"]
[Round "1.3"]
[White "Trent, Lawrence"]
[Black "Feuerstack, Aljoscha"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "2386"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,66,-18,-14,-17,-38,-34,-37,-32,-34,-33,-59,-76,-72,-30,-90,-89,-89,-89,-110,-81,-93,-39,-54,-52,-39,-39,-37,-19,-48,-32,-44,-21,-41,-17,-50,-73,-46,-21,-61,-58,-57,-54,-121,-103,-100,-66,-428,-442,-426,-434,-522,-520,-756,-707,-838,-866,-1491,-1474]} 1. e4 e5 2. Nf3 Nf6 3. d3 Nc6 4. Be2 d5 5. Nbd2 Bc5 6. c3 a5 {[%cal Ba7a5,Ba5a4][%mdl 32] C44: Ponziani Opening and Scotch Gambit.} 7. h3 O-O 8. Qc2 a4 {Black is slightly better.} 9. Nf1 Re8 10. g4 d4 11. Ng3 {[#]} Bf8 $146 ({Predecessor:} 11... a3 12. b4 Bd6 13. b5 Na7 14. c4 c6 15. bxc6 Nxc6 16. O-O Nd7 17. Kh2 Bb4 {0-1 (37) Asylguzhin,R (2387)-Karadeniz,A (2307) Batumi 2002}) 12. a3 (12. Bd2 $11 {remains equal.}) 12... Nd7 $17 13. cxd4 exd4 14. Nh5 Nc5 15. Bg5 Be7 (15... f6 $17 16. Bh4 Be6) 16. Qxc5 $1 $15 Bxc5 17. Bxd8 Nxd8 18. Nd2 b5 19. O-O Bb6 20. f4 Ba5 21. Nf3 c5 22. Kh2 Bb7 $36 {[%mdl 2048] Black is really pushing.} 23. Rac1 Bb6 24. Ne5 Rc8 25. g5 Ne6 26. Ng4 {[#]} (26. Bg4 $15) 26... c4 $1 $17 {[%mdl 512]} 27. dxc4 Bxe4 {[#] And now ...d3 would win.} 28. Ng3 $2 {[%mdl 8192] This move loses the game for White.} (28. Ngf6+ $1 $15 {[%mdl 512]} gxf6 29. Nxf6+ Kh8 30. Nxe4 Nxg5 {[%mdl 64] Pin} 31. Ng3) 28... d3 $19 {Black is clearly winning.} 29. Bd1 Ba8 30. Nf5 {intending Nd6.} Bc7 31. Kg3 Nxf4 32. Rxf4 Re4 {[%mdl 64] Pin} 33. Nfh6+ Kf8 {Accuracy: White = 47%, Black = 85%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.21"]
[Round "1.4"]
[White "Nijboer, Friso"]
[Black "Sukandar, Irine Kharisma"]
[Result "0-1"]
[ECO "B36"]
[WhiteElo "2469"]
[BlackElo "2408"]
[Annotator "ChessBase"]
[PlyCount "35"]
[EventDate "2020.02.21"]
[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 0:00:03]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:06]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:11]} 4. Nxd4 {[%emt 0:00:00]} g6 {[%emt 0:00:14]} 5. c4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:18]} 6. Nc3 {[%emt 0:00:01]} d6 {[%emt 0:00:26]} 7. Be2 {[%emt 0:09:31]} Nxd4 {[%emt 0:00:34]} 8. Qxd4 {[%emt 0:00:04]} Bg7 {[%emt 0:00:09]} 9. Be3 {[%emt 0:03:32]} O-O {[%emt 0:00:24]} 10. Qd2 {[%emt 0:00:03]} a5 {[%emt 0:02:36]} 11. O-O {[%emt 0:07:30]} a4 {[%emt 0:01:03]} 12. f3 {[%emt 0:03:47]} Qa5 {[%emt 0:02:22]} 13. Rab1 {[%emt 0:06:05]} Be6 {[%emt 0:01:20]} 14. Rfc1 {[%emt 0:07:16]} Rfc8 {[%emt 0:00:45]} 15. b4 {[%emt 0:05:29]} axb3 {[%emt 0:00:19]} 16. axb3 {[%emt 0:00:01]} Qb4 {[%emt 0:00:24]} 17. Rc2 {[%emt 0:24:38]} Nd7 {[%emt 0:10:18]} 18. Na4 {[%emt 0:00:31]} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.21"]
[Round "1.5"]
[White "Warakomski, Tomasz"]
[Black "Bosboom, Manuel"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "2501"]
[BlackElo "2410"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,63,25,34,0,31,15,25,16,22,-5,38,37,33,18,74,64,78,88,125,57,52,50,47,49,37,38,40,18,56,92,233,231,274,282,264,256,421,369,880,685,786,684,710,712,707,704,753,715,801,795,915,915,4686,4686]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7 6. f4 Nc6 7. Nf3 {B56: Classical Sicilian: Unusual Lines.} Rc8 8. Bd3 g6 9. O-O {White has an edge.} Bg7 {[#]} 10. Kh1 $146 ({Predecessor:} 10. Qe1 O-O 11. Qh4 Qa5 {½-½ (11) Markovic,Z (2384)-Georgiev,K (2446) Golubac 2008}) 10... h5 11. Qe1 Nb4 12. Bd2 Ng4 (12... d5 $11 {remains equal.}) 13. h3 $16 Nxd3 14. cxd3 Qb6 {[#]} 15. d4 ({And not} 15. hxg4 hxg4+ 16. Nh2 g3 $17) (15. Nd5 $1 $16 {[%cal Rd5b6]} Qa6 16. Qh4 (16. hxg4 hxg4+ 17. Nh2 Qxd3 $17)) 15... Bb5 $14 (15... Bxd4 $2 16. Nd5 $18) 16. Nxb5 Qxb5 17. Rc1 Rxc1 18. Qxc1 {[%cal Rc1c8]} Qc6 19. Bc3 {aiming for d5.} Qxe4 20. d5 $1 $40 {[%mdl 128] White goes for the king.} f6 {[#] This move loses the game for Black.} (20... Kf8 $16) 21. Ng5 $1 $18 {[%cal Rg5e4]} Qf5 ({Wrong is} 21... Qxd5 $2 22. Bxf6 O-O 23. Bxg7 $18) 22. hxg4 hxg4+ 23. Kg1 Kd7 $2 (23... g3 {was necessary.} 24. Bd4 Rh4) 24. Qd1 Rc8 $2 (24... fxg5 25. Bxg7 Rc8 26. Qa4+ Kc7 27. fxg5 Qxd5 28. Rc1+ Kd8 29. Rxc8+ {[%mdl 64] Overworked Piece} Kxc8 30. Qe8+ {[%mdl 64] Double Attack} Kc7 31. Qxe7+ Kb6 32. Qe3+ Kc7) 25. Qa4+ {White is clearly winning.} Kc7 26. Ne6+ {[%mdl 64] Double Attack} Kb8 27. Nxg7 Qxd5 28. f5 g3 29. Qg4 gxf5 30. Nxf5 {[%mdl 64] Double Attack} e5 {[#]} 31. Ne7 $1 {[%csl Ge7][%cal Rg4c8]} Qc5+ {[#]} 32. Bd4 $1 {Accuracy: White = 84%, Black = 26%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.22"]
[Round "2.1"]
[White "Nijboer, Friso"]
[Black "Zwirs, Nico"]
[Result "1/2-1/2"]
[ECO "B56"]
[WhiteElo "2469"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,84,35,46,28,66,60,82,87,90,85,66,73,91,90,109,125,99,-46,-65,-62,-43,-52,-66,-174,-62,-69,-62,-233,-109,-100,-110,-102,-75,-40,-40,-60,-67,-68,-41,-70,-67,-52,-54,-122,-108,-202,-180,-197,-182,-187,-173,-149,-160,-154,-153,-150,-139,-177,-37,-28,0,-80,0,0,0,-48,0,-62,-8,-8,0,-8,0,-11,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7 6. Bg5 e6 7. Qe2 {[#] B56: Classical Sicilian: Unusual Lines.} Qa5 $146 ({Predecessor:} 7... a6 8. O-O-O h6 9. Bh4 b5 10. g4 b4 11. Nd5 exd5 12. exd5+ Be7 13. Bxf6 gxf6 14. Re1 Kf8 {0-1 (38) Sawlin,L (2395)-Gasanov,E (2475) St Petersburg 2019}) 8. f4 Nc6 9. Nb3 {White is better.} Qc7 10. O-O-O a6 11. Bxf6 gxf6 12. Qh5 b5 13. f5 Ke7 14. Bxb5 (14. a3 $16) 14... axb5 $15 15. Nxb5 Qb6 $1 {[%cal Rb6b5]} 16. Nxd6 Ne5 {aiming for ...Ba4.} 17. Rd4 (17. Nxf7 $2 Be8 $19) (17. Kb1 $1 $15) 17... Bg7 (17... Rxa2 $19 18. Rhd1 Ra7) 18. Kb1 (18. Nxf7 $2 Be8 $19) 18... Rhd8 19. Qxh7 $2 (19. Rhd1 $15) 19... Rh8 (19... Qa7 $1 $19 {[%cal Ra7a2] and Black stays clearly on top.} 20. a3 (20. Qxg7 $2 Qxa2+ 21. Kc1 Rg8 $19) 20... Rh8 21. Qxg7 Rag8 22. fxe6 Bxe6 23. Qxh8 Rxh8) 20. Qxg7 $17 Rag8 21. Nc4 Nxc4 22. Rxd7+ Kxd7 23. Qxf7+ Kc8 24. fxe6 Re8 $40 {[%mdl 128] White needs to defend precisely.} 25. Qxf6 Qxe6 (25... Rxh2 $5 26. Rc1 Rh7 $11) 26. Qc3 Qc6 $1 {Strongly threatening ...Na3+!} 27. Nd4 (27. Ka1 $15) 27... Qc5 28. a4 {[#]} (28. Re1 $17) 28... Na3+ $1 $19 {[%mdl 512]} 29. Qxa3 (29. bxa3 Qxc3) 29... Qxd4 30. Re1 Rh7 31. Qf3 {[#]} Rb7 $1 {[%csl Gb7][%cal Rd4b2][%mdl 512]} 32. b3 Qxa4 33. e5 {Threatens to win with Qxb7+!} Qb5 34. e6 Ra7 (34... Qc5 $19 35. Re4 Rc7) 35. Re4 $1 $15 Kb8 ({Avoid the trap} 35... Qa5 $2 36. Ra4 $1 $18 {[%mdl 512]} (36. Rc4+ Kb8 $11)) 36. Qg3+ {[#]} (36. Qf4+ $11 {was the only way to keep the balance.} Ka8 37. Qf3) 36... Ka8 (36... Rc7 $1 $17) 37. Qf3 $1 $11 {Rb4+ is the strong threat.} Qd5 {[#]} 38. e7 $1 {[%mdl 512]} Qb7 (38... Raxe7 39. Ra4+) 39. Qf8 ({White should try} 39. Kb2 $11) 39... Qc8 ({Black should play} 39... Qd7 $1 $15 40. Qf3 Rb7) 40. Qf3 {Hoping for Rb4+.The position is equal.} Qb7 41. Qf8 Qc8 42. Qf3 {Black must now prevent Rb4+.} Qb7 {And White is the lucky defender. Accuracy: White = 63%, Black = 64%.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.22"]
[Round "2.2"]
[White "Van Haastert, Edwin"]
[Black "Trent, Lawrence"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2438"]
[BlackElo "2386"]
[Annotator "ChessBase"]
[PlyCount "56"]
[EventDate "2020.02.21"]
[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 0:03:48]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:01]} 3. Bb5 {[%emt 0:00:07]} a6 {[%emt 0:00:06]} 4. Ba4 {[%emt 0:00:08]} Nf6 {[%emt 0:00:14]} 5. O-O {[%emt 0:00:11]} Nxe4 {[%emt 0:00:05]} 6. d4 {[%emt 0:00:27]} Be7 {[%emt 0:00:21]} 7. Qe2 {[%emt 0:02:42]} b5 {[%emt 0:03:14]} 8. Bb3 {[%emt 0:00:22]} d5 {[%emt 0:01:01]} 9. dxe5 {[%emt 0:01:06]} Na5 {[%emt 0:18:34]} 10. Nbd2 {[%emt 0:05:48]} Nxb3 {[%emt 0:10:47]} 11. axb3 {[%emt 0:01:10]} Bb7 {[%emt 0:03:55]} 12. Nd4 {[%emt 0:13:55]} Qd7 {[%emt 0:04:12]} 13. e6 {[%emt 0:05:16]} fxe6 {[%emt 0:00:07]} 14. Nxe4 {[%emt 0:00:07]} dxe4 {[%emt 0:00:04]} 15. Qh5+ {[%emt 0:00:27]} g6 {[%emt 0:00:12]} 16. Qe5 {[%emt 0:00:27]} O-O-O {[%emt 0:01:34]} 17. Be3 {[%emt 0:11:09]} Rhe8 {[%emt 0:11:21]} 18. Qxe6 {[%emt 0:05:35]} Bc5 {[%emt 0:00:48]} 19. Qxd7+ {[%emt 0:00:10]} Rxd7 {[%emt 0:00:01]} 20. c3 {[%emt 0:00:23]} Bxd4 {[%emt 0:00:17]} 21. Bxd4 {[%emt 0:00:20]} Re6 {[%emt 0:00:54]} 22. b4 {[%emt 0:01:16]} Bd5 {[%emt 0:01:11]} 23. Rfe1 {[%emt 0:01:06]} Kb7 {[%emt 0:00:14]} 24. Re3 {[%emt 0:00:35]} Rde7 {[%emt 0:01:00]} 25. Bc5 {[%emt 0:00:53]} Rd7 {[%emt 0:01:12]} 26. Bd4 {[%emt 0:00:23]} Rde7 {[%emt 0:00:02]} 27. Bc5 {[%emt 0:00:08]} Rd7 {[%emt 0:00:01]} 28. Bd4 {[%emt 0:00:14]} Rde7 {[%emt 0:00:02]} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.22"]
[Round "2.3"]
[White "Feuerstack, Aljoscha"]
[Black "Admiraal, Miguoel"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2459"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,53,53,51,51,51,58,50,50,42,54,42,64,46,46,46,46,47,41,32,43,27,27,0,45,45,34,36,47,52,85,55,64,58,58,0,0,-23,0,-25,-25,-32,-50,-79,0,0,0,0,0,0,0,0,0,0,0,-73,-88,-98,0,-84,-84,-148,-167,-144,-150,-324,-280,-1155,-1116,-29991,-29992]} 1. e4 g6 2. d4 Bg7 3. Nf3 e6 4. Bd3 d6 5. Bg5 Ne7 6. Qd2 {B06: Modern Defence.} h6 7. Be3 $1 Nd7 {[%cal Bb8d7,Bd7f6,Bf6e4][%mdl 32]} 8. Nc3 {White is slightly better.} a6 9. O-O b6 10. Ne2 Bb7 11. Ng3 Nf6 12. h3 {[#]} d5 $146 {[%cal Rd5e4]} ({Predecessor:} 12... Nd7 13. c4 c6 14. Rac1 Qc7 15. Rfd1 Rd8 16. Nh2 c5 17. d5 exd5 18. exd5 Ne5 {1-0 (48) Yankelevich,L (2310)-Zweschper,E (2101) Hofheim 2014}) 13. e5 Ne4 14. Qe2 Nf5 15. Kh2 c5 16. c3 Qc7 17. Bxe4 {[#] Hoping for Nxf5.} dxe4 18. Nd2 cxd4 19. cxd4 Qc2 20. Nc4 Qxe2 21. Nxe2 b5 22. Na5 (22. Nb6 $14) 22... Bd5 $11 23. Nf4 Kd7 24. Nxd5 (24. Nb3 {looks sharper.} Rhc8 25. g4 Nh4 26. Rfc1 Nf3+ 27. Kg3) 24... exd5 25. g4 Nh4 26. f4 h5 (26... Bf8 $17) 27. Kg3 Nf3 28. Nb7 hxg4 29. hxg4 Rh2 {aiming for ...Rah8.} 30. Nc5+ Ke7 {Threatens to win with ...Rah8.} 31. Rf2 ({Don't go for} 31. Rxf3 $2 Rah8 $19) 31... Rh7 32. Rc1 (32. Rg2 $11) 32... Rah8 $40 {[%mdl 128] White is in trouble.} 33. Rg2 {[#]} Rh3+ $1 34. Kf2 Nh4 35. Rg3 (35. Rgg1 $142) 35... Rh2+ 36. Kf1 Nf3 37. Nxa6 $2 (37. Nd3 $17) 37... Rxb2 $19 38. Rc7+ $2 (38. Nc7 Rh1+ 39. Bg1) 38... Kd8 {( -> ...Rh1+)} 39. Rxf7 Rh1+ {Accuracy: White = 63%, Black = 89%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.22"]
[Round "2.4"]
[White "Sukandar, Irine Kharisma"]
[Black "Bosboom, Manuel"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2408"]
[BlackElo "2410"]
[Annotator "NA"]
[PlyCount "100"]
[EventDate "2020.02.21"]
[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 0:00:14]} d6 {[%emt 0:00:48]} 3. d4 {[%emt 0:00:37]} Nf6 {[%emt 0:01:05]} 4. dxe5 {[%emt 0:00:59]} Nxe4 {[%emt 0:01:44]} 5. Qd5 {[%emt 0:00:20]} Nc5 $1 {[%emt 0:00:38]} 6. Bg5 {[%emt 0:00:15]} Be7 {[%emt 0:01:16]} 7. exd6 {[%emt 0:00:18]} Qxd6 {[%emt 0:00:51]} 8. Nc3 {[%emt 0:01:09]} h6 {[%emt 0:19:28]} 9. Be3 {[%emt 0:04:44]} c6 {[%emt 0:02:17]} 10. Qxd6 {[%emt 0:02:48]} Bxd6 {[%emt 0:00:02]} 11. O-O-O {[%emt 0:00:28]} Be7 {[%emt 0:00:23]} 12. Bc4 {[%emt 0:05:22]} Nba6 {[%emt 0:19:23]} 13. Rhe1 {[%emt 0:06:53]} Be6 {[%emt 0:02:12]} 14. Bxa6 {[%emt 0:07:42]} Nxa6 {[%emt 0:00:49]} 15. Nd4 {[%emt 0:00:14]} Nc7 {[%emt 0:05:11]} 16. Nxe6 {[%emt 0:11:36]} Nxe6 {[%emt 0:00:47]} 17. f4 {[%emt 0:00:25]} g6 {[%emt 0:08:21]} 18. g4 {[%emt 0:01:16]} Bh4 $16 {[%emt 0:08:04]} 19. Re2 {[%emt 0:20:10]} O-O {[%emt 0:00:40]} 20. f5 {[%emt 0:01:00]} Ng5 {[%emt 0:00:33]} 21. Rd7 {[%emt 0:05:45]} b6 {[%emt 0:05:47]} 22. Rd6 {[%emt 0:00:58]} c5 {[%emt 0:04:08]} 23. fxg6 {[%emt 0:01:23]} fxg6 {[%emt 0:00:24]} 24. Rxg6+ {[%emt 0:00:14]} Kh7 {[%emt 0:00:05]} 25. Rd6 {[%emt 0:00:16]} Rae8 {[%emt 0:00:31]} 26. Rd7+ {[%emt 0:04:28]} Kg6 {[%emt 0:03:18]} 27. Bf4 {[%emt 0:07:33]} Ne6 {[%emt 0:03:37]} 28. Nd5 {[%emt 0:01:50]} Nxf4 {[%emt 0:03:04]} 29. Nxf4+ {[%emt 0:01:45]} Kg5 {[%emt 0:00:18]} 30. Ne6+ {[%emt 0:01:42]} Kxg4 {[%emt 0:00:47]} 31. Rd1 {[%emt 0:04:52]} Kf3 {[%emt 0:05:53]} 32. Re5 {[%emt 0:01:25]} Rg8 {[%emt 0:00:36]} 33. Rd3+ {[%emt 0:01:30]} Kf2 {[%emt 0:01:22]} 34. Rf5+ {[%emt 0:02:01]} Kg1 {[%emt 0:00:12]} 35. Nf4 {[%emt 0:03:56]} Bg5 {[%emt 0:01:30]} 36. h4 {[%emt 0:00:31]} Bxh4 {[%emt 0:01:07]} 37. Kd1 {[%emt 0:00:49]} Re1+ {[%emt 0:00:22]} 38. Kd2 {[%emt 0:00:01]} Re4 {[%emt 0:00:23]} 39. Ne2+ {[%emt 0:01:11]} Kh2 {[%emt 0:00:01]} 40. Rh5 {[%emt 0:00:39]} Kg2 {[%emt 0:00:59]} 41. b3 {[%emt 0:12:39]} Rge8 {[%emt 0:08:30]} 42. Kd1 {[%emt 0:02:57]} Rf8 {[%emt 0:03:50]} 43. Rdd5 {[%emt 0:06:39]} Rf1+ {[%emt 0:02:48]} 44. Kd2 {[%emt 0:00:01]} Rf2 {[%emt 0:00:17]} 45. Kd1 {[%emt 0:00:34]} Rfxe2 {[%emt 0:00:42]} 46. Rxh4 {[%emt 0:00:11]} Rxh4 {[%emt 0:00:09]} 47. Kxe2 {[%emt 0:00:05]} Re4+ {[%emt 0:00:36]} 48. Kd3 {[%emt 0:00:51]} Rd4+ {[%emt 0:00:22]} 49. Rxd4 {[%emt 0:00:06]} cxd4 {[%emt 0:00:01]} 50. c4 {[%emt 0:00:45]} dxc3 {[%emt 0:00:36]} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.22"]
[Round "2.5"]
[White "Reinderman, Dimitri"]
[Black "Warakomski, Tomasz"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2582"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,153,13,0,28,20,32,33,63,55,57,54,47,52,84,-4,22,24,44,33,39,33,75,59,60,60,71,62,60,45,35,41,42,42,32,31,35,31,39,20,53,11,9,5,6,10,35,8,23,0,54,58,60,56,57,63,50,48,108,52,49,43,46,40,81,11,19,11,49,14,8,0,80,94,80,80,80,95,93,93,87,0,0,0,80,80,92,109,221,221,260,268,266,240,264,257,241,237,388,387,456,439,542,544,527,518,514,388,360,378,377,339,394,394,392,395,394,303,330,303,1855,542,543,536,489,504,644,644,815,859,805,649,859,859,3225,1785,863,0,1412,1442,1867,1921,1960,1909]} 1. c4 c6 2. Nf3 d5 3. g3 Nf6 4. Bg2 dxc4 5. O-O Nbd7 6. Qc2 Nb6 7. Na3 Qd5 {A11: English Opening: 1...c6.} 8. b3 {[%cal Ra3c4]} cxb3 9. axb3 Be6 {White is slightly better.} 10. Bb2 $1 {[%mdl 4] is more profitable than 10.Rb1 at the moment.} Qxb3 11. Rfb1 Qxc2 $1 12. Nxc2 Nfd7 {[#]} 13. d3 $146 (13. Bd4 $1 $16 {[%cal Rd4b6]} c5 14. Bc3) ({Predecessor:} 13. Bd4 c5 14. Bc3 Bd5 15. Ne5 Bxg2 16. Kxg2 Nxe5 17. Rxb6 Nc6 18. Rxb7 h5 19. Ne3 {1-0 (51) Dawson,A (2113)-Goodwin,B (1829) ICCF email 2017}) 13... f6 14. Bd4 c5 {[#]} 15. Bxc5 $1 {[%mdl 512]} Nxc5 {[#]} 16. Rxb6 $1 {[%mdl 576] Pin} Bf7 (16... axb6 17. Rxa8+) 17. Nd2 e5 $1 18. Bxb7 Nxb7 19. Rxb7 a5 20. Ra4 Be7 21. Nc4 Bd5 22. Rb5 Bxc4 23. dxc4 Bd8 24. Ne3 Rf8 25. Nf5 {Strongly threatening Rb7.} g6 26. Nd6+ Kd7 27. Ne4 Bc7 28. Ra2 Ke7 29. Rb7 Rfc8 30. Rd2 Rab8 ({Black should try} 30... Ra6 $1 $11) 31. Ra7 $14 Rb6 $1 32. c5 $36 {[%mdl 2048] White is pushing.} Rc6 $1 33. Rd6 $1 {[%cal Rd6c6]} Rxc5 $1 {White must now prevent ...Rc4.} 34. Rda6 Rc1+ 35. Kg2 Rf8 $1 36. Rxa5 Rc6 37. Rb5 Rd8 38. g4 (38. Rc5 $16 Rxc5 39. Nxc5) 38... Rd4 $1 $11 {[%cal Rd4e4]} 39. f3 Kd7 40. Nc5+ Kd6 41. Ne4+ (41. Na6 {feels hotter.} Bb6 42. Rb7 Bd8 43. Rb8 Rxa6 44. Rxd8+ Ke6 45. Re8+) 41... Ke6 (41... Kd7 $1 $11 {remains equal.}) 42. Rc5 $1 $16 {[%cal Rc5c6]} Rxc5 43. Nxc5+ {[%mdl 4096] Endgame KRB-KRN} Kd6 {Hoping for ...Bb6.} 44. Ne4+ Kc6 45. Nxf6 Rd2 46. Kf1 ({Reject} 46. Nxh7 Rxe2+ 47. Kf1 Rxh2 $11) 46... Rd1+ $1 47. Kg2 Rd2 48. Kf2 $1 {White now steadily converts the win.} Bb6+ 49. Ke1 Rd6 (49... Rxe2+ $16 50. Kxe2 Bxa7) 50. Rf7 $18 Ba5+ 51. Kf2 Bb6+ 52. Kg3 Rd2 53. Nxh7 Rxe2 54. Rf6+ Kc7 $2 (54... Kb5 {was called for.} 55. Rxg6 Bf2+ 56. Kh3 Be3) 55. g5 e4 56. fxe4 Re3+ 57. Rf3 Rxe4 58. Nf8 $1 Kd8 {Black hopes to continue with ...Bc7+.} 59. Nxg6 Bc7+ 60. Kh3 Bd6 61. Nh8 Ke8 {If only Black now had time for ...Re2....} 62. Nf7 Bc7 {[#]} 63. Nh6 $1 Rf4 64. Rc3 Bd6 65. Rd3 Kd7 $2 (65... Be7 66. Rd5 Bd8) 66. Ng4 (66. g6 $142 {aiming for g7.} Rf6 67. Nf7 Rxg6 68. Ne5+ {[%mdl 64] Double Attack} (68. Nxd6 Rxd6 69. Re3 Re6 $11) 68... Ke6 {[#]} 69. Rxd6+ $1 {[%mdl 512]} Kxd6 70. Nxg6 Kc7 71. Kg4) 66... Ke6 67. Kh4 Rf8 68. h3 Be7 69. Re3+ Kd6 70. Kh5 Bd8 71. h4 Bb6 72. Re2 Bd4 73. Rd2 Rf4 74. Re2 (74. g6 $142 Ke7 75. Kg5) 74... Rf8 $1 75. g6 {White is clearly winning.} Bg7 76. Kg5 Ra8 77. Ne3 {Accuracy: White = 82%, Black = 59%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.23"]
[Round "3.1"]
[White "Warakomski, Tomasz"]
[Black "Feuerstack, Aljoscha"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2501"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,84,7,24,4,5,-20,-13,-25,-25,-30,-16,-52,-49,-50,-35,-73,-49,-53,-53,-67,-69,-57,-36,-56,-37,-59,-57,-53,-49,-94,-93,-114,-55,-63,-62,-50,-15,-17,-16,-18,-16,-14,-14,-14,-14,-13,-12,-20,-10,-13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-6,-6,-6,-6,-6,-6]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Bg5 Nbd7 8. c4 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} h6 9. Bd2 Nc5 {[#] ...Nxd3+ is the strong threat.} 10. Qxe7+ Bxe7 11. b4 Na4 (11... Ne6 {with more complications.} 12. Nc3 c5 13. bxc5 dxc5 14. Be2 Bd6) 12. Nc3 Nxc3 13. Bxc3 O-O {[#]} 14. O-O-O $146 ({Predecessor:} 14. Be2 Nh5 15. g3 {½-½ (15) Kurajica,B (2510)-Hulak,K (2515) Banja Luka 1983}) 14... Re8 (14... a5 $5 {[%cal Ra5b4]} 15. b5 d5 $15) 15. Re1 Bd7 16. Be2 d5 17. Nd2 d4 18. Bxd4 Bxb4 19. Bf3 Red8 20. Re3 Ng4 21. Bxg4 Bxg4 22. Nb3 Bf5 ({Better is} 22... a5 $17 {Strongly threatening ...a4.} 23. Rg3 h5) 23. Kc2 $15 {[#]} b5 $1 {[%mdl 512]} 24. cxb5 c6 25. bxc6 {The position is equal.} Rac8 26. Kb2 Rxc6 {And now ...Rxd4! would win.} 27. Rc1 Rxc1 28. Kxc1 a5 29. Bc5 Rc8 ({Much weaker is} 29... Rxd3 $6 30. Rxd3 Bxd3 31. Bxb4 $14) 30. d4 a4 31. Kb2 axb3 32. Bxb4 bxa2 33. Kxa2 $11 {[%mdl 4096] Endgame KRB-KRB} Rc2+ 34. Ka3 Rxf2 35. Rf3 Rxf3+ 36. gxf3 {KB-KB} Bh3 37. f4 f6 38. Kb3 Be6+ 39. Kc3 Kf7 40. Kd3 f5 41. Ke3 Bd5 42. Bd6 g6 {Accuracy: White = 85%, Black = 93%.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.23"]
[Round "3.2"]
[White "Zwirs, Nico"]
[Black "Sukandar, Irine Kharisma"]
[Result "1-0"]
[ECO "B36"]
[WhiteElo "2443"]
[BlackElo "2408"]
[Annotator "ChessBase"]
[PlyCount "71"]
[EventDate "2020.02.21"]
[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 0:02:51]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:20]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:16]} 4. Nxd4 {[%emt 0:00:00]} g6 {[%emt 0:00:09]} 5. c4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:27]} 6. Nc3 {[%emt 0:00:14]} d6 {[%emt 0:00:17]} 7. f3 {[%emt 0:00:19]} Nxd4 {[%emt 0:03:23]} 8. Qxd4 {[%emt 0:00:07]} Bg7 {[%emt 0:00:06]} 9. Be3 {[%emt 0:00:09]} O-O {[%emt 0:00:18]} 10. Qd2 {[%emt 0:00:32]} Be6 {[%emt 0:01:13]} 11. Rc1 {[%emt 0:01:06]} Qa5 {[%emt 0:00:43]} 12. b3 {[%emt 0:00:35]} Rfc8 {[%emt 0:00:41]} 13. Be2 {[%emt 0:01:08]} Rab8 {[%emt 0:00:12]} 14. Nd5 {[%emt 0:23:38]} Qxd2+ {[%emt 0:00:42]} 15. Kxd2 {[%emt 0:00:18]} Nxd5 {[%emt 0:00:22]} 16. cxd5 {[%emt 0:01:36]} Bd7 {[%emt 0:00:09]} 17. Bxa7 {[%emt 0:06:01]} Rxc1 {[%emt 0:00:21]} 18. Rxc1 {[%emt 0:00:46]} Ra8 {[%emt 0:00:07]} 19. Be3 {[%emt 0:12:21]} Rxa2+ {[%emt 0:00:15]} 20. Kd1 {[%emt 0:12:22]} Ra1 {[%emt 0:03:37]} 21. g4 {[%emt 0:03:00]} f5 {[%emt 0:05:18]} 22. Rxa1 {[%emt 0:03:35]} Bxa1 {[%emt 0:03:12]} 23. exf5 {[%emt 0:00:16]} gxf5 {[%emt 0:00:05]} 24. g5 {[%emt 0:00:48]} Kf7 {[%emt 0:18:17]} 25. h4 {[%emt 0:04:06]} e5 {[%emt 0:06:12]} 26. dxe6+ {[%emt 0:04:26]} Bxe6 {[%emt 0:00:18]} 27. Kc2 {[%emt 0:00:23]} Bd5 {[%emt 0:03:06]} 28. h5 {[%emt 0:04:40]} Be5 {[%emt 0:04:37]} 29. f4 {[%emt 0:02:13]} Bh8 {[%emt 0:00:25]} 30. Bc4 {[%emt 0:01:39]} Ke6 {[%emt 0:01:07]} 31. Kd3 {[%emt 0:01:26]} b5 {[%emt 0:05:13]} 32. Bxd5+ {[%emt 0:02:17]} Kxd5 {[%emt 0:00:02]} 33. Bd2 {[%emt 0:00:17]} Bb2 {[%emt 0:06:49]} 34. Bc3 {[%emt 0:01:33]} Bc1 {[%emt 0:00:44]} 35. g6 {[%emt 0:00:16]} hxg6 {[%emt 0:00:23]} 36. h6 {[%emt 0:00:07]} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.23"]
[Round "3.3"]
[White "Admiraal, Miguoel"]
[Black "Van Haastert, Edwin"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2501"]
[BlackElo "2438"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,112,7,12,4,13,5,13,-3,24,0,28,35,47,56,62,59,75,0,0,-10,-14,-13,-10,-5,-10,-16,0,0,0,-15,-12,-12,-12,-13,-12,-33,-6,-12,0,0,0,0,0,-6,0,0,0,0,0,0,0,-25,0,0,0,-49,-53,-51,-45,-102,-104,-318,0,0,0,-77,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 Bb4 5. d3 d6 6. a3 {A28: English Opening: Four Knights Variation.} Bxc3+ (6... Ba5 {is more complex.} 7. Be2 Bg4 8. O-O Bb6 9. Be3 O-O) 7. bxc3 O-O 8. g3 Ne8 9. Nh4 {[#]} Ne7 $146 ({Predecessor:} 9... a6 10. a4 Rb8 11. Bg2 b5 12. axb5 axb5 13. cxb5 Rxb5 14. O-O Bd7 15. Nf5 Bxf5 16. exf5 {1-0 (38) Grigoryan,K (2544)-Georgiev,K (2608) Kragujevac 2016}) 10. Bg2 c6 11. O-O f5 12. exf5 Nxf5 {[#]} 13. Nxf5 (13. Nf3 $1 $16) 13... Bxf5 $11 14. f4 Qd7 15. Ra2 Nf6 16. fxe5 dxe5 17. Bg5 h6 ({Don't blunder} 17... Bxd3 $2 18. Bxf6 Qe6 19. Qxd3 $18) 18. Bxf6 $1 Rxf6 19. d4 Bg4 20. Qd3 Rxf1+ 21. Bxf1 Re8 22. Rf2 e4 23. Qe3 Bf3 24. c5 b6 25. cxb6 axb6 26. Rb2 Qa7 27. c4 c5 28. d5 Qc7 29. Rd2 Qd6 30. Bh3 Kh8 31. Rf2 Qe5 32. Bg2 (32. d6 $5 Qh5 33. d7 $11) 32... Bxg2 33. Kxg2 $15 {[%mdl 4096] Endgame KQR-KQR} Qd4 34. Qe2 {[#]} ({White should play} 34. Qxd4 $1 $15 cxd4 35. Kf1) 34... b5 $1 $17 {[%cal Rb5c4]} 35. cxb5 $2 (35. Qf1 $17 Kg8 36. cxb5) 35... Qxd5 $2 ({Black should try} 35... e3 $19 36. h4 Qxd5+ 37. Kh2 c4) 36. Qe3 $11 c4 37. a4 (37. b6 $1 $11) 37... c3 (37... Qd3 $17 38. Re2 Qd1) 38. Rc2 {The position is equal.} ({But not} 38. Qxc3 $2 e3+ 39. Rf3 e2 $19) 38... Rc8 {And now ...Qd3 would win.} 39. b6 $1 ({Wrong is} 39. Rxc3 $2 Rxc3 40. Qxc3 e3+ 41. Kh3 Qe6+ 42. Kg2 Qe4+ 43. Kg1 Qb1+ 44. Kg2 e2 $19) 39... Qb3 40. Qxe4 Qxb6 41. h4 Qa6 42. h5 Rf8 43. Rf2 Rxf2+ 44. Kxf2 {Black must now prevent Qe8+. KQ-KQ} Qc8 {Threatens to win with ...c2.} 45. Qc2 Qc5+ 46. Ke2 Qxh5+ 47. Kd3 Qf3+ 48. Kc4 Qxg3 {Hoping for ...h5.} 49. Qxc3 Qg4+ 50. Kb5 Qd7+ 51. Qc6 Qd3+ 52. Kb6 Qd4+ 53. Kb7 Qb4+ 54. Qb5 Qe4+ 55. Qc6 Qb4+ 56. Qb5 Qe4+ {Accuracy: White = 82%, Black = 86%.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.23"]
[Round "3.4"]
[White "Bosboom, Manuel"]
[Black "Reinderman, Dimitri"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2410"]
[BlackElo "2582"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,-33,-17,-47,-40,-47,-51,-59,-46,-50,-41,-59,-54,-127,-128,-247,-237,-239,-243,-256,-249,-283,-279,-375,-289,-380,-371,-377,-369,-379,-379,-418,-416,-490,-500,-500,-502,-545,-550,-555,-500,-555,-539,-634,-637,-982,-985,-977,-983,-1237,-1018,-1008,-1011,-978,-975,-1350,-1349,-29974,-29976,-29993,-29990,-29994,-29995]} 1. c4 g6 2. Nf3 Bg7 3. Nc3 c5 4. h4 Nf6 {[#]} 5. a3 $146 ({Predecessor:} 5. b3 Nc6 6. Bb2 e5 7. g3 d6 8. Bg2 O-O 9. d3 h6 10. Qd2 Be6 11. e4 {0-1 (34) Bacrot,E (2679)-Niemann,H (2465) chess.com INT 2020}) 5... Nc6 6. b4 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} cxb4 7. axb4 Nxb4 8. Qb3 {Black is slightly better.} Nc6 9. Bb2 O-O 10. e3 d6 11. h5 ({White should play} 11. Be2 $15) 11... Nxh5 $17 12. Rxh5 (12. Nd5 $17) 12... gxh5 $19 13. Be2 e5 14. Nd5 b6 15. g3 Ne7 16. d4 e4 17. Nh4 Nxd5 18. cxd5 Bf6 19. Ng2 Bg4 20. Bb5 h4 {[#] Hoping for ...h3.} 21. gxh4 Bf3 22. Nf4 Bxh4 23. Kd2 Bxf2 24. Ba3 Qf6 25. Rf1 Bh4 26. Bc6 Rad8 27. Ne6 fxe6 28. dxe6 Kh8 29. Bxe4 Qg7 {Strongly threatening ...Qg2+.} 30. Rxf3 Qg2+ {[%mdl 64] [#] Double Attack} 31. Kd3 Rxf3 32. Bxf3 Qxf3 33. d5 Bf6 {Black mates.} 34. Kd2 Qf2+ 35. Kd1 Rg8 {White got outplayed after the opening. Accuracy: White = 41%, Black = 93%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.23"]
[Round "3.5"]
[White "Trent, Lawrence"]
[Black "Nijboer, Friso"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2386"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,11,7,7,7,7,7,6,7,7,8,0,25,0,17,2,17,10,28,0,-9,-23,-23,-29,2,4,35,0,0,0,-6,0,-3,-22,0,0,23,9,19,4,16,-16,-3,-31,-30,-27,-34,-35,-32,-60,0,-10,-10,-63,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 Bf5 4. f3 e6 5. g4 Bg6 6. h4 {[#] Black must now prevent h5. D00: 1 d4 d5: Unusual lines.} h6 7. e3 Nc6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. Nge2 {[#]} Qe7 $146 ({Predecessor:} 10... e5 11. Bg3 exd4 12. exd4 Bxg3+ 13. Nxg3 Qe7+ 14. Nge2 O-O-O 15. O-O-O Rhe8 16. g5 Nh5 {1-0 (36) Lubbe,N-Schatz,F Verden 1999}) 11. O-O-O O-O-O 12. Kb1 Kb8 13. Bxd6 Qxd6 14. Na4 e5 15. Nec3 exd4 16. exd4 Nb4 17. Qd2 Na6 18. Nb5 Qb4 19. Qxb4 (19. Nac3 {keeps more tension.} Ne8 20. Qf4 Ka8 21. Na3 c6 22. Ne2) 19... Nxb4 20. c3 Nc6 21. Nc5 b6 22. Nd3 Rde8 23. Nf4 Nd8 24. g5 Nd7 25. Na3 c6 26. Rhe1 Rxe1 27. Rxe1 hxg5 28. hxg5 Kc7 29. g6 Rh4 (29... Rf8 $1 $15) 30. Nd3 Rh3 31. Kc2 (31. Re3 $11) 31... fxg6 ({Black should play} 31... Rg3 $15) 32. Re7 $11 {[#] Hoping for Ne5.The position is equal.} Kd6 33. Rxg7 Ne6 34. Rxg6 Rxf3 35. Nb1 Rf6 36. Rxf6 {Accuracy: White = 73%, Black = 85%.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.24"]
[Round "4.1"]
[White "Nijboer, Friso"]
[Black "Admiraal, Miguoel"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2469"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "151"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,151,0,0,0,0,0,0,0,0,-22,-1,-18,-17,-104,-33,-21,-26,-24,22,28,24,35,20,-109,-100,-95,-102,-93,-102,-81,-84,-89,-89,-143,-123,-122,-84,-91,-91,-104,-100,-155,-140,-158,-42,-42,-42,-51,-22,-25,-18,-12,-12,-24,0,0,0,0,0,-2,-4,-3,-3,-4,-5,-2,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,-8,0,-8,-8,-926,-879,-702,0,0,0,0,0,0,0,0,0,-1613,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,-8,0,0,0,0,1727,1289,29976,29977,29978,29978,29982,29983,29989,29990]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. c4 e6 6. Nc3 Ne7 7. Nge2 {7.Bg5 is vanishing. B12: Caro-Kann: Advance Variation.} Nd7 8. Ng3 Bg6 9. Bg5 {The position is equal.} Qb6 10. Rc1 $1 {[%mdl 4] is currently scoring better than 10.Qd2. Played by Alireza Firouzja in January 2020.} Qxb2 11. Bd3 $1 dxc4 12. Bxc4 (12. Bxg6 $11 Nxg6 13. Nxh5) 12... Nb6 (12... O-O-O $17 13. Qb3 Qxb3 14. Bxb3 f6 15. exf6 gxf6) 13. Bd3 $15 {[#]} Ned5 $146 {[%mdl 2048] Black has some pressure.} ({Predecessor:} 13... Bxd3 14. Qxd3 Qa3 15. O-O Nbd5 16. Nge4 Nf5 17. Rb1 Qa6 18. Qxa6 bxa6 19. Ne2 Be7 20. Bxe7 Ndxe7 {0-1 (38) Soumya,S (2384)-Flom,G (2510) Caleta 2020}) 14. Nxd5 Nxd5 ({Of course not} 14... exd5 $6 15. Bxg6 Bb4+ 16. Kf1 $16) 15. Bxg6 $1 Bb4+ 16. Kf1 fxg6 17. Rh3 (17. Rc2 $11 {remains equal.} Qa3 18. Ne4) 17... Qxa2 $17 18. Ne4 O-O 19. Rb3 Qa5 20. Rcb1 Qb5+ 21. Kg1 a5 22. Nd6 (22. Qc2 $142) 22... Qb6 23. Qd3 Rf5 24. Nxf5 gxf5 25. Qd1 g6 26. Rg3 (26. Bc1 $142) 26... Kf7 27. Bc1 c5 (27... Qa6 $17 28. Rbb3 Rg8) 28. dxc5 $15 Qxc5 29. Bd2 Qd4 (29... Qc7 {with more complications.} 30. Rd3 Qxe5 31. Qa4 Re8 32. Bg5 Qd6) 30. Bxb4 Qxd1+ 31. Rxd1 axb4 $11 {[%mdl 4096] Endgame KRR-KRN} 32. Rb3 b5 33. Rc1 Ra3 34. Rcb1 {Hoping for Rxa3.} Nc3 35. R1b2 Ra1+ 36. Kh2 Nd5 37. Rc2 Re1 38. Rc5 Re4 39. Rxb5 Rxh4+ 40. Rh3 $1 Rxh3+ 41. Kxh3 {KR-KN} g5 42. Ra5 Ke7 43. g3 Kd7 {Threatens to win with ...Kc6.} 44. Rc5 $1 Ke7 45. f3 Kf7 46. Rc8 Ke7 47. Rc4 f4 48. g4 $2 {[%mdl 8192]} (48. Rc8 $11) 48... hxg4+ $19 49. fxg4 {[#]} Kd7 $2 (49... f3 $1 $19 {[%cal Rf3f2]} 50. Rc8 Kd7) 50. Rc5 $11 Ne3 51. Rb5 Nd5 52. Rc5 $1 Ne3 53. Rb5 Nc4 (53... Nc2 $5 54. Rb6 $8 Ke7 $11) 54. Rc5 $2 {[%mdl 8192] [#]} (54. Rxb4 $11 Nxe5 55. Rb7+ Kd6 56. Rg7) 54... Nd2 $2 (54... Na3 $1 $19 {...b3 is the strong threat.} 55. Ra5 Kc6) 55. Rc2 Nf3 56. Rc5 b3 {aiming for ...Nd2.} 57. Rc3 $1 {[%cal Rc3f3]} Nxe5 {And now ...b2 would win.} 58. Rxb3 Ke7 59. Rb8 Kf6 60. Rf8+ Kg7 61. Rb8 Kf7 62. Ra8 Kf6 63. Rf8+ Kg7 64. Re8 Kf7 65. Ra8 Nd3 66. Kg2 e5 67. Ra7+ Ke6 {White must now prevent ...e4.} 68. Ra6+ Kd5 69. Rg6 Kd4 70. Rxg5 Ke3 71. Rf5 {Strongly threatening g5.} Ke2 $2 {[%mdl 8192]} (71... e4 $11) 72. g5 $18 e4 73. g6 {White mates.} f3+ 74. Kg3 e3 75. g7 f2 76. g8=Q {What a fight! Accuracy: White = 84%, Black = 80%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.24"]
[Round "4.2"]
[White "Zwirs, Nico"]
[Black "Trent, Lawrence"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2443"]
[BlackElo "2386"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,85,39,27,37,39,46,16,24,31,37,36,45,41,36,22,30,17,37,30,33,8,65,57,55,60,102,98,97,71,70,62,69,63,52,52,64,58,57,44,46,48,80,73,65,80,77,70,52,54,62,0,0,0,0,0,0,0,0,0,88,0,52,43,47,0,172,172,159,128,335,335,563,495,486,508,747,728]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. O-O d6 6. c3 Be7 {6...g5 is becoming the main line. C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} 7. a4 O-O 8. a5 a6 {The position is equal.} 9. Re1 Nh7 10. Nbd2 {[%cal Bb1d2,Bd2b3,Bb3c5][%mdl 32]} Ng5 11. d4 Bf6 {[%cal Re5d4] [#]} 12. Nxg5 $146 ({Predecessor:} 12. dxe5 Nxe5 13. Nxe5 Bxe5 14. Nf3 Bg4 15. Be2 Bxf3 16. Bxf3 Nxf3+ 17. Qxf3 Qd7 18. Qd3 {0-1 (51) Jovanovic,Z (2558)-Vitiugov,N (2687) Budva 2009}) 12... Bxg5 13. Nb3 Kh8 14. Bd5 Bxc1 15. Rxc1 Ne7 (15... Qg5 $11) 16. dxe5 $14 dxe5 17. Bc4 Bd7 18. Nc5 Bc6 19. Qxd8 Raxd8 20. Rcd1 Rd6 21. Kf1 Rfd8 22. Ke2 Kg8 23. f3 Kf8 24. Nd3 Ng6 $1 25. g3 Bd7 26. h4 h5 27. Nc5 Bc8 28. Bd5 b6 29. axb6 cxb6 30. Nb7 ({White should play} 30. Nd3 $14) 30... Bxb7 $1 $11 31. Bxb7 Rxd1 32. Rxd1 Rxd1 33. Kxd1 {[%mdl 4096] Endgame KB-KN} a5 34. Kc2 Ke7 {[#]} (34... Ne7 $11) 35. Bd5 (35. Kd3 $1 $16) 35... Nh8 ({Black should try} 35... f6 $11) 36. Kd3 f6 37. Kc4 {Hoping for Kb5.} Kd6 $2 (37... g5 $1 $11) 38. Kb5 $18 Kc7 39. Be6 Kb7 $2 {[#] Black cannot hold the game after this.} (39... g5 $16) 40. c4 g5 $2 (40... Kc7 {was worth a try.} 41. Bg8 Ng6) 41. Bf5 {White is clearly winning.} Nf7 42. c5 Nd8 43. cxb6 {Accuracy: White = 83%, Black = 63%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.24"]
[Round "4.3"]
[White "Feuerstack, Aljoscha"]
[Black "Bosboom, Manuel"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "2459"]
[BlackElo "2410"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,47,71,77,81,89,89,89,65,120,96,164,102,126,102,136,118,245,249,278,273,274,242,395,395,514,469,825,828,1003,995,1425,1409,1251,970,1448,1394,1714,1660,2152,2079]} 1. e4 c5 2. c3 g6 3. d4 Bg7 4. Nf3 b6 5. Bd3 cxd4 6. cxd4 {B27: Sicilian: 2 Nf3, unusual Black 2nd moves.} Nc6 {[#]} 7. d5 $146 ({Predecessor:} 7. O-O Nxd4 8. Nxd4 Bxd4 9. Bc4 e5 10. Be3 Bb7 11. Bxd4 exd4 12. Qxd4 Qf6 13. Qd2 {1-0 (51) Grischuk,A (2777)-Gareyev,T (2598) Moscow 2019}) 7... Nb4 8. Be2 {White is better.} Bb7 (8... Qc7 $14 9. Na3 Nf6) 9. Nc3 $16 a5 (9... Rc8 $16) 10. e5 (10. O-O $18) 10... Nh6 11. a3 Na6 12. Bf4 $36 {[%mdl 2048] White is really pushing.} Nc5 {Now Black is done in.} (12... f6 $16) 13. b4 $18 axb4 14. axb4 Na6 15. Qd2 Ng8 $2 {[#]} (15... Ng4 16. h3 g5) 16. O-O f6 {and the idea ...fxe5 leaves Black hopeful.} 17. e6 {White is clearly winning.} dxe6 (17... d6 $142 18. Nd4 Nc7 19. Rxa8 Qxa8) 18. Bb5+ Kf8 19. Nd4 Qc8 20. Nxe6+ Kf7 21. Ne4 Nxb4 22. Qxb4 Rxa1 23. Rxa1 Bxd5 24. Nc7 {Accuracy: White = 84%, Black = 23%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.24"]
[Round "4.4"]
[White "Sukandar, Irine Kharisma"]
[Black "Reinderman, Dimitri"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2408"]
[BlackElo "2582"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,58,12,8,4,21,0,7,12,-12,-4,0,0,-9,12,5,16,-58,-20,-25,-24,-27,-27,-38,-35,-155,-160,-309,-261,-967,-964,-2291,-1910,-1414,-651,-602,-524,-515,-510,-514,-498,-506,-497]} 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. a4 c6 8. Re1 b6 9. d5 cxd5 10. Nxd5 Nxd5 {C41: Philidor Defence.} 11. Bxd5 Rb8 12. h3 Nf6 {[#] The position is equal.} 13. b3 $146 ({Predecessor:} 13. Bb3 Bb7 14. Qd3 d5 15. Bxd5 Bxd5 16. exd5 e4 17. Rxe4 Nxe4 18. Qxe4 Re8 19. Qd3 Qd6 20. c4 Qf6 {½-½ (20) Kreisl,R (2322)-Monroy,C (2399) Olbia 2008}) 13... Nxd5 14. Qxd5 Bb7 15. Qd3 f5 16. exf5 Bf6 {Hoping for ...e4.} 17. Qe3 (17. Rb1 $11) 17... Bxf3 18. gxf3 Rb7 {[%cal Bb8b7,Bb7f7,Bf7f5,Bf5f3][%mdl 32]} 19. Ba3 Rbf7 20. Rad1 Be7 $1 21. f4 (21. Qe4 $15) 21... Rxf5 $17 22. Bb2 {[#]} (22. Qd3 $17 Rxf4 23. Re4) 22... Qe8 $1 $19 ({Not} 22... Rxf4 {[#]} 23. Bxe5 $1 {[%mdl 512]} Rf3 24. Qd4 $17) 23. fxe5 $2 (23. Ba3 Rxf4 24. Bxd6) 23... Qg6+ {Black is clearly winning.} 24. Kh1 Rf3 25. Rg1 Qh5 (25... Qf5 $142 26. Qxf3 Qxf3+ 27. Kh2 Qf4+ 28. Rg3 Bh4 {[%mdl 64] Pin}) 26. Rxg7+ Kxg7 27. exd6+ Bf6 28. Qe7+ Qf7 29. Qxf7+ Kxf7 {Accuracy: White = 47%, Black = 84%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.24"]
[Round "4.5"]
[White "Van Haastert, Edwin"]
[Black "Warakomski, Tomasz"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "2438"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,66,32,70,66,62,61,64,54,56,43,42,40,50,43,48,49,43,47,33,22,27,27,76,37,57,43,68,39,47,33,34,43,37,34,58,49,51,44,27,2,40,37,50,-39,-23,-15,-19,-85,-85,-154,-147,-694,-695,-679,-668,-685,-656,-737,-721]} 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 Qb6 6. Nf3 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} Bg4 7. Be2 Nh6 8. O-O {White is slightly better.} Bxf3 9. Bxf3 Nf5 10. Ne2 $1 h5 11. c3 {[#]} e6 $146 ({Predecessor:} 11... Nd7 12. Ng3 Nxg3 13. hxg3 e6 14. Qc2 Bf8 15. Be3 c5 16. Rfc1 Rc8 17. Qf2 Nb8 {1-0 (33) Umanskaja,E-Utkin,A (1770) Rybinsk 2010}) 12. Ng3 Nxg3 13. hxg3 Bf8 14. Qb3 Nd7 15. Be3 Qa6 16. Rfd1 Nb6 17. Qc2 Nc8 18. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Ne7 19. c4 Qb6 20. c5 Qd8 21. b4 Nf5 22. Bf2 g5 23. fxg5 Qxg5 24. Qd2 Qg7 25. Qe1 Be7 26. a4 (26. b5 $1 $14) 26... h4 $36 {[%cal Rh4g3][%mdl 2048] Black has some pressure.} 27. g4 Nh6 $1 {[%cal Bf5h6,Bh6g4,Bg4f2,Bf2h3][%mdl 32]} 28. Bxh4 (28. Rd3 $11) 28... Nxg4 $17 29. Bxe7 ({Better is} 29. Bg3) 29... Kxe7 30. Qg3 $2 {[%mdl 8192] [#] Loses the game.} (30. Ra3 $17) 30... Rh1+ $3 $19 {[%mdl 576] Decoy. Black is clearly winning.} 31. Kxh1 Qh6+ 32. Qh3 Nf2+ {[%mdl 64] Double Attack, Pin} 33. Kg1 Nxh3+ {Accuracy: White = 60%, Black = 87%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.25"]
[Round "5.1"]
[White "Admiraal, Miguoel"]
[Black "Zwirs, Nico"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2501"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,88,0,0,0,0,0,-13,13,12,18,-8,54,43,58,0,7,-10,-7,-8,-14,-68,-86,-89,-79,-63,-71,-89,-83,-86,-86,-63,-50,-85,-60,-85,-58,-70,-42,-76,-62,-131,-109,-143,-145,-140,-137,-208,-227,-213,-206,-359,-376,-399,-421,-418,-404,-1321,-4678,-5043,-4277,-4411,-3761,-2939,-2074,-1431,-1327,-7714,-6800,-29954,-29946,-12841,-5076]} 1. d4 d5 2. Nf3 Nf6 3. c3 g6 4. Bf4 Bg7 5. e3 O-O 6. Nbd2 b6 7. h3 Bb7 8. Bd3 c5 9. O-O Nc6 10. Qe2 Nd7 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} 11. Rad1 Qc8 {[#]} 12. Bh2 $146 ({Predecessor:} 12. e4 dxe4 13. Bxe4 cxd4 14. cxd4 Ba6 15. Bd3 Bxd3 16. Qxd3 Nf6 17. Ne4 Nd5 18. Bg5 {0-1 (51) Markov,V (2170)-Nutu Gajic,D Brezovica 1988}) 12... Re8 {The position is equal.} 13. e4 e6 {[%cal Rc5d4]} 14. Rfe1 a5 (14... cxd4 $11 15. cxd4 Bxd4) 15. Bb5 Na7 {[%cal Bc6a7,Ba7b5,Bb5c3][%mdl 32]} 16. exd5 (16. Bxd7 $1 $14 Qxd7 17. dxc5) 16... Nxb5 $11 17. dxe6 {[#]} Nxc3 $1 {[%mdl 512]} 18. exf7+ $1 (18. bxc3 Rxe6) 18... Kxf7 19. Ng5+ (19. Qc4+ $11 Bd5 20. Qxc3) 19... Kg8 $15 20. Qxe8+ Qxe8 21. Rxe8+ Rxe8 22. bxc3 cxd4 23. cxd4 Bd5 $1 $36 {[%mdl 2048] Black is really pushing.} 24. a3 Bf8 $1 25. Nb1 Ba2 26. f3 Bxb1 27. Rxb1 Bxa3 28. Ne4 Rc8 $1 29. Rb5 {Black continues to play with concentration.} (29. Kf1 $15) 29... Kf7 30. Kf2 Rc2+ 31. Ke3 Rxg2 32. Bc7 {[#]} (32. Bd6 $17 Bc1+ 33. Kd3) 32... Rb2 $1 $19 {[%cal Rb2b5]} 33. Rxb2 Bxb2 {[%mdl 4096] Endgame KBN-KBN} 34. Nd6+ $2 (34. Kd3 {keeps fighting.}) 34... Ke6 35. Nc4 Bc1+ 36. Kd3 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 37. Nxb6 (37. Kc3 $142 b5 38. Nd6) 37... Nxb6 38. Bxb6 {KB-KB} Kd5 39. Kc3 a3 {( -> ...a2)} 40. Kb3 Bb2 41. Bc5 {[#]} h5 $1 42. h4 Bc1 43. Bb6 g5 44. hxg5 Bxg5 {Accuracy: White = 48%, Black = 84%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.25"]
[Round "5.2"]
[White "Warakomski, Tomasz"]
[Black "Nijboer, Friso"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2501"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,133,12,16,25,0,12,0,-6,-39,-14,-82,-45,-36,-30,-32,-21,-21,-21,-28,-27,-33,-32,-48,-50,-61,-55,-58,-62,-62,-36,-67,-54,-54,-37,-59,-44,-85,-89,-104,-106,-113,-101,-134,-81,-160,-162,-156,-90,-173,14,30,29,23,19,9,81,86,75,74,95,18,26,8,14,7,18,16,8,12,38,37,170,82,115,121,139,120,141,147,198,227,232,68,114,74,99,50,58,58,58,41,110,52,52,10,27,7,62,62,60,14,29,8,29,28,61,61,61,61,61,61,60,60,282,273,367,171,1111,1005,4922,5049,29966,29961]} 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d3 Nd7 7. Bd2 {7.Be2 is the hot move.} Bc5 {B11: Caro-Kann: Two Knights Variation.} 8. Qg3 Bd4 9. Be2 Ne7 {The position is equal.} 10. f4 {[#]} a5 $146 ({Predecessor:} 10... O-O 11. Be3 Bxe3 12. Qxe3 Qb6 13. Qxb6 axb6 14. O-O b5 15. a3 Nc5 16. e5 d4 {0-1 (45) Yalamanchi,K-Bodiroga,P (2425) ICC INT 2009}) 11. Nd1 (11. Be3 $11 {keeps the balance.} Qb6 12. Bxd4 Qxd4 13. Qf2) 11... O-O 12. c3 Bb6 13. Nf2 f5 14. e5 d4 15. c4 a4 16. O-O Ba5 17. Bc1 b5 18. Rd1 Nc5 19. Qf3 Qb6 20. Rb1 Ra7 21. Kh1 Rd8 22. Bf1 Rad7 23. Kh2 Na6 24. h4 Nb4 $1 25. a3 Na6 26. h5 h6 27. g4 Nc5 (27... bxc4 $142 $1 28. dxc4 fxg4 29. Nxg4 Nc5) 28. Bh3 ({White should play} 28. g5) 28... bxc4 $17 29. dxc4 Rf8 (29... Qa6 $142 30. gxf5 Nxf5) 30. Bd2 (30. g5 $17) 30... Qb3 $2 ({Better is} 30... Bxd2 $19 31. Rxd2 fxg4 32. Qxg4 Nf5) 31. Qxb3 $11 Nxb3 32. Bxa5 Nxa5 33. Nd3 fxg4 (33... Nb3 $11 {remains equal.}) 34. Bxg4 $16 Nf5 35. Nc5 Re7 36. Bxf5 (36. Kh3 $1 $16) 36... Rxf5 $11 37. Rxd4 Rxh5+ 38. Kg2 g5 39. Rh1 Rxh1 40. Kxh1 gxf4 41. Nxa4 {[%mdl 4096] Endgame KRN-KRN} f3 (41... Nb3 $1 $14 42. Rxf4 Rf7) 42. Kg1 (42. b4 $1 $18) 42... Rg7+ 43. Kf2 Rg2+ 44. Kxf3 Rc2 {[#]} 45. Ke3 $1 h5 (45... Nb3 $16 {was necessary.} 46. Rd6 Rxc4) 46. Kd3 $18 Rg2 47. Rh4 $2 (47. Nc5 $18) 47... Rg3+ 48. Kc2 Kf7 49. b4 Rg2+ $1 50. Kd1 Nb3 51. Rxh5 {Rh3 is the strong threat.} Rd2+ 52. Ke1 Ra2 53. Rh4 Rxa3 54. Nb6 c5 ({Black should try} 54... Kg6 $1 $11) 55. b5 $1 $14 Nd4 {And now ...Nf3+ would win.} 56. Re4 {Strongly threatening Nd7.} Ke8 57. Nc8 Nf5 (57... Kd7 $5 58. Nd6 $8 Nf3+ 59. Ke2 Nxe5 60. Rxe5 Kxd6 $14) 58. Rg4 Kd7 59. Nd6 {Black must now prevent Ne4.} Re3+ $1 60. Kd2 {aiming for Nxf5.} Rxe5 61. Ne4 Kc7 62. Kd3 Kb6 $2 (62... Nd4 $14) 63. Rg5 $18 Ka5 {If only Black now had time for ...Kb6....} 64. Rg1 (64. Rg8 $142) 64... Nd4 $2 {[#]} (64... Kb6 65. Rg5 Ka7) 65. Nxc5 $1 {[%mdl 512]} Nxb5 (65... Rxc5 66. Kxd4) 66. Ra1+ Na3 {[#]} 67. Kd4 $1 {A wild game. Accuracy: White = 61%, Black = 53%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.25"]
[Round "5.3"]
[White "Trent, Lawrence"]
[Black "Sukandar, Irine Kharisma"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2386"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,17,36,1,8,-8,4,-7,0,0,12,0,25,26,15,28,48,60,56,45,52,56,77,71,81,90,88,85,108,103,134,81,125,126,125,126,123,29,84,73,185,158,491,358,575,510,510,494,727,679,942,575,1093,1070,960,897,1056,927,1067,1067,29989,29990,29999]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. d3 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} Nc6 7. Bd2 a6 8. Qc1 {[#] The position is equal.} Rb8 $146 ({Predecessor:} 8... d6 9. Bh6 Bd7 10. h4 Ng4 11. Bxg7 Kxg7 12. h5 Rb8 13. Bh3 Rh8 14. h6+ Kf8 {1-0 (57) Polert,A (1852)-Krtschil,A (1445) Osnabrueck 2013}) 9. Bh6 b5 10. h4 bxc4 11. Bxg7 Kxg7 12. h5 Rh8 13. h6+ Kf8 14. dxc4 d6 15. b3 Bb7 16. Ng5 Nd4 17. Bxb7 Rxb7 18. e3 Nc6 19. Qd2 Qd7 20. Rh4 (20. O-O-O $142) 20... Qf5 21. e4 Qd7 22. O-O-O Nd4 {Hoping for ...Rxb3!} 23. Qb2 ({White should try} 23. Qf4 $16) 23... Qd8 (23... Ng4 $11) 24. f4 {And now e5 would win.} Nh5 (24... e5 $16 {keeps fighting.}) 25. e5 $18 Nxg3 $2 {This move loses the game for Black.} (25... Qa5 $16) 26. Qg2 $1 {[%csl LRb7,LRg3][%mdl 64] [#] Double Attack} Qa5 $2 (26... d5 {might work better.} 27. Qxg3 Qa5) 27. Qxg3 Qa3+ 28. Kd2 Qb2+ (28... d5 $142 29. Ke1 Qa5) 29. Ke1 Nf5 30. Rh2 Qa3 31. Qf3 Qb4 32. Rh3 Rb8 33. Kf1 Qa5 34. Kg1 dxe5 {[#]} 35. Qd5 $1 {[%csl Gg5][%cal Rd5f7][%mdl 64] Double Attack} Kg8 {Accuracy: White = 76%, Black = 41%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.25"]
[Round "5.4"]
[White "Bosboom, Manuel"]
[Black "Van Haastert, Edwin"]
[Result "0-1"]
[ECO "A12"]
[WhiteElo "2410"]
[BlackElo "2438"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,114,0,-15,14,-12,-17,0,-2,-49,-38,-44,-52,-101,-42,-59,-54,-51,-37,-46,-57,-58,-44,-51,-28,-35,-18,-78,-80,-71,-52,-96,-35,-43,-22,-31,-17,-23,0,0,-8,-6,57,55,62,-19,-13,-45,34,-248,-234,-240,-240,-247,-242,-238,-247,-236,-200,-233,-260,-248,-256,-347,-232,-256,-227,-249,-202,-204,0,-14,0,-57,-53,-68,0,0,0,0,0,-102,-75,-110,0,-472,-448,-457,-106,-124,-115,-114,-3,-12,0,-779,-731]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. b3 Bg4 5. Bb2 Nbd7 6. d3 e6 7. Nbd2 Be7 8. c4 O-O 9. O-O a5 10. a3 Re8 11. Qc2 Bf8 {[#] A12: English Opening: 1...c6 with b3 by White.} 12. Rae1 $146 ({Predecessor:} 12. h3 Bh5 13. e4 dxe4 14. dxe4 e5 15. Rfe1 Qc7 16. Nh4 Bc5 17. Nf1 Nf8 18. Ne3 Ne6 19. Nef5 {1-0 (38) Li,R (2581)-Chandra,A (2503) Las Vegas 2018}) 12... Bh5 13. Nh4 e5 {The position is equal.} 14. Kh1 Nc5 15. Ndf3 d4 16. Rb1 Nfd7 (16... h6 $17 17. Ne1 Qb6) 17. Bc1 f6 18. h3 Qc7 19. Nf5 Bf7 20. b4 axb4 21. axb4 Na6 22. Bd2 c5 23. b5 (23. bxc5 $11 Naxc5 24. Ra1) 23... Nb4 $17 24. Qb3 Ra5 25. e3 {[%cal Re3d4]} dxe3 (25... g6 $17 26. N5h4 dxe3 27. Bxe3 Rxb5 $1 {[%mdl 512]}) 26. Nxe3 $15 {[#]} Rxb5 $1 {[%mdl 512]} 27. Nd5 (27. cxb5 Bxb3) 27... Bxd5 28. cxd5 Bd6 29. Rfc1 Qd8 30. h4 Nf8 (30... Ra5 $11) 31. h5 $14 {[%mdl 1024] White has compensation.} Ra5 32. Nh4 (32. h6 $14) 32... Qd7 $36 {[%mdl 2048] Black has some pressure.} 33. Be4 {[#]} Rea8 (33... g6 $1 $15 {[%mdl 512]}) 34. Nf5 $2 {[%mdl 8192]} (34. Qd1 $14 {stays ahead.}) 34... Ra3 $19 35. Qd1 Nxd3 {[%mdl 64] Double Attack} 36. Be3 Nxc1 37. Qxc1 R3a4 38. Qc2 Ra1 39. Rxa1 Rxa1+ 40. Kg2 b6 41. Qb3 Qc7 42. Bd3 g6 43. Nh6+ Kg7 44. Ng4 Nd7 $2 (44... f5 $19 45. Bh6+ Kh8) 45. Bh6+ $11 Kf7 46. hxg6+ ({Better is} 46. Qc2 $1 $11 Nf8 47. Bxf8 Kxf8 48. hxg6) 46... hxg6 $15 {aiming for ...c4!} 47. Qc2 $1 e4 (47... Ke7 $15 48. Bxg6 Qc8) 48. Bxe4 $11 Ne5 49. Nxe5+ Bxe5 ({Not} 49... fxe5 $2 50. Bxg6+ Kg8 51. Qf5 $18) 50. Bxg6+ (50. f4 $1 $11 {keeps the balance.}) 50... Ke7 $1 $17 ({Don't go for} 50... Kg8 $2 51. Qf5 $18) 51. f4 {[#]} Qd7 (51... Qa7 $1 $17 {Hoping for ...Ra2.} 52. d6+ (52. fxe5 $2 Ra2 $19) 52... Kd8) 52. Be4 $2 {[%mdl 8192]} (52. fxe5 $11 {and White has nothing to worry.} Qxd5+ {[%mdl 64] Double Attack} 53. Be4) 52... Bd4 $19 53. Bf3 Kd6 $2 (53... Kd8 $19 54. g4 b5) 54. Bf8+ $17 Kc7 {Strongly threatening ...Kb8.} 55. d6+ {[#]} Kb8 (55... Kc8 $1 $17 {Threatens to win with ...Qe6.} 56. g4 Qb5) 56. g4 $1 $11 f5 57. g5 $2 {[%mdl 8192]} (57. Qxf5 $11 Qb5 58. Kg3) 57... Qf7 {Accuracy: White = 54%, Black = 60%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.25"]
[Round "5.5"]
[White "Reinderman, Dimitri"]
[Black "Feuerstack, Aljoscha"]
[Result "1/2-1/2"]
[ECO "B10"]
[WhiteElo "2582"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,90,-41,-19,-20,-24,-36,5,6,9,7,21,11,6,9,0,0,68,10,24,-3,0,0,0,-6,-6,-97,-88,-87,-85,-84,0,-76,0,-65,-75,-118,-98,-135,-130,-188,-104,-114,-118,-110,-115,-121,-80,-89,-42,-45,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 c5 2. e3 Nf6 3. Nf3 g6 4. d4 cxd4 5. exd4 d5 6. cxd5 Bg7 7. Bb5+ Nbd7 8. d6 exd6 9. O-O O-O 10. Nc3 a6 11. Bxd7 Bxd7 {[#]} 12. Bg5 $146 {B10: Caro-Kann: 2 d3 and 2 c4.} ({Predecessor:} 12. Qb3 Rb8 13. Bf4 Bg4 14. Nd2 Nh5 15. Be3 b5 16. f3 Be6 17. d5 Bc8 18. Nce4 Bb7 19. Rad1 Re8 {0-1 (31) Nielsen,L (2246)-Grubert,C (2148) Denmark 2018}) 12... Qa5 13. d5 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 14. Qd2 b4 15. Bxf6 $1 Bxf6 16. Ne4 $1 {[%csl LRd6,LRf6]} Bg7 17. Nxd6 Qc7 18. Ne4 ({Don't blunder} 18. Qxb4 $2 Rab8 $19) 18... Rfd8 (18... Rad8 $11) 19. Qxb4 (19. Rfe1 $14) 19... Bf5 20. d6 Qc6 {Strongly threatening ...Rab8.} 21. Ng3 Bd3 22. Rfd1 Rab8 23. Qe1 (23. Nd4 $11 Qxd6 24. Qxd6 Rxd6 25. Rxd3 Rxd4 26. Rxd4 Bxd4 27. Rb1) 23... Qxd6 $17 24. Rd2 Bh6 25. Rdd1 Bg7 26. Rd2 $1 ({Don't play} 26. Ne4 Qb6 $17) 26... Bh6 (26... Qb6 $5 {[%cal Rg7b2]} 27. Ne5 Bb5 $15) 27. Rdd1 Rxb2 28. Ne5 Re8 $1 {[%cal Re8e5]} 29. Qc3 Qxe5 30. Qxd3 {[#]} (30. Rxd3 $17 Qxc3 31. Rxc3) 30... Qf4 (30... Rxf2 $1 $19 {[%mdl 512] Threatens to win with ...Qc5.} 31. Qxa6 (31. Kxf2 Be3+) 31... Qe3) 31. Qf3 Qxf3 32. gxf3 Rc8 33. a4 Rcc2 34. Rd8+ Bf8 35. Ne4 f5 36. Ng5 $1 {The position is equal.} Rxf2 {aiming for ...Rg2+.} 37. Ne6 $1 {[%csl Ge6][%cal Rd8f8]} Rg2+ 38. Kf1 {[%csl Ge6][%cal Rd8f8]} Rgf2+ 39. Kg1 {[%csl Ge6][%cal Rd8f8]} Rg2+ 40. Kf1 {[%csl Ge6][%cal Rd8f8]} Kf7 (40... Rbf2+ {looks sharper.} 41. Ke1 Re2+ 42. Kf1 Rgf2+ 43. Kg1 Rg2+) 41. Nxf8 Rxh2 {[%cal Rh2h1]} 42. Kg1 Rhg2+ 43. Kh1 Rh2+ 44. Kg1 Rhg2+ 45. Kh1 Rh2+ {Whites escaped into a draw. Accuracy: White = 77%, Black = 78%.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.27"]
[Round "6.1"]
[White "Van Haastert, Edwin"]
[Black "Reinderman, Dimitri"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2438"]
[BlackElo "2582"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,64,48,43,41,52,59,51,50,46,56,27,42,33,37,63,16,12,14,45,41,36,27,25,12,33,0,0,0,0,0,0,0,0,-62,-62,-193,-187,-292,-241,-245,-236,-250,-237,-209,-235,-233,-207,-594,-562,-562,-554]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6 9. Nc4 {B33: Sicilian: Pelikan and Sveshnikov Variations.} Rb8 10. Nd5 Bxd5 11. exd5 {White is slightly better.} Ne7 12. Bxf6 gxf6 13. g3 {[#]} b5 $5 $146 {[%mdl 8] An interesting novelty.} ({Predecessor:} 13... h5 14. Bh3 Bh6 15. Qf3 Nc8 16. O-O b5 17. Na5 Qxa5 18. Qxf6 Rg8 19. Qxh6 {1-0 (59) Zelcic,R (2526)-Dreev,A (2671) Zagreb 2019}) 14. Ne3 Bh6 15. Bg2 f5 16. O-O Bxe3 (16... f4 $5 {[%cal Rf4e3]} 17. Qh5 Bg7 $14) 17. fxe3 Qb6 18. Qd2 h5 19. Bh3 Qc5 20. Rad1 h4 21. Bxf5 hxg3 22. hxg3 Rh5 $36 {[%mdl 2048] Black has good play.} 23. Be4 f5 24. Bg2 (24. g4 $11 Rg5 25. Bxf5 Nxf5 26. Rxf5 Rxg4+ 27. Kf2) 24... Kd7 $15 {White must now prevent ...Rg8.} 25. Qf2 {[#] White does not recover from this.} (25. b4 $15 Qc7 26. e4) 25... e4 $1 $19 26. Qd2 (26. Rd4 $142) 26... Rg5 27. Qd4 Qxd4 ({And not} 27... Rxg3 28. Qxc5 dxc5 29. d6 $11) 28. Rxd4 Rxg3 29. Kf2 Rbg8 30. Bh1 Rh3 {[#] Hoping for ...Rh2+.} 31. a4 $2 (31. Bg2 {nothing else works.} Rh2 32. Rg1) 31... Rh2+ 32. Ke1 Rgh8 {Accuracy: White = 48%, Black = 96%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.27"]
[Round "6.2"]
[White "Nijboer, Friso"]
[Black "Bosboom, Manuel"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2469"]
[BlackElo "2410"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,120,49,55,47,105,67,106,66,207,160,175,158,172,168,168,164,185,185,261,282,289,298,319,313,299,296,318,322,320,313,413,416,402,334,328,312,327,329,330,332,314,323,370,370,370,362,357,348,478,479,522,512,502,504,633,626,617,585,585,585,555,169,169,160,160,160,811,856,832,819,747,681,468,230,230,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 c5 5. dxc5 Nc6 6. Bb5 {B12: Caro-Kann: Advance Variation.} d4 (6... Qa5+ $14 7. Nc3 O-O-O 8. Bxc6 bxc6) 7. c3 Qd5 8. cxd4 {White is better.} (8. Ne2 {keeps more tension.} Bxb1 9. Rxb1 Qxg2 10. Rg1 Qe4 11. Bd3) 8... O-O-O {[#]} (8... Qxg2 $14 9. Qf3 Qxf3 10. Nxf3 Be4) 9. Nf3 $146 {aiming for Nc3.} ({Predecessor:} 9. Bxc6 Qxc6 10. Nf3 e6 11. Be3 Bxc5 12. Nbd2 Kb8 13. Rc1 Qb5 14. Rxc5 Qxb2 15. O-O Qxa2 16. Ng5 Nh6 17. Nde4 Bxe4 18. Nxe4 Nf5 19. Nd6 {1-0 (19) Goldberg,A (2330)-Orso,M (2360) Berlin East 1987}) 9... Nxd4 10. Qxd4 Qxd4 11. Nxd4 Rxd4 12. Nc3 f6 13. Be3 Rb4 (13... Rd8 $142 14. c6 e6) 14. O-O-O $18 fxe5 15. a3 Rb3 16. Rd2 Rxc3+ 17. bxc3 Nf6 18. Rhd1 a6 19. Ba4 Kc7 20. f3 h5 21. c4 g6 22. Rd8 Bh6 23. Rxh8 Bxe3+ 24. Kb2 Bxc5 25. Bc2 Bf2 26. Bxf5 gxf5 27. Rdd8 e4 {With the idea ...e3.} 28. Kc2 Bxh4 29. Rc8+ Kb6 30. c5+ Kb5 31. Rc7 Bg3 32. Rxb7+ Kxc5 33. Rxe7 Nd5 34. Rc8+ Kd6 35. Rd8+ $2 (35. Rg7 h4 36. Rd8+ Ke5 37. fxe4 Ne3+ 38. Kd3 Nxg2 39. exf5) 35... Kxe7 36. Rxd5 exf3 37. gxf3 {[%mdl 4096] Endgame KR-KB} Ke6 $2 (37... Kf6 $16 38. Kd3 Kg5) 38. Ra5 h4 39. Rxa6+ Bd6 40. a4 Ke5 {intending ...h3.} 41. a5 (41. Rc6 $142) 41... h3 {[#] Threatens to win with ...h2.} 42. Ra8 $2 ({White has to play} 42. f4+ $1 $18 Kd5 (42... Kxf4 43. Rxd6) 43. Ra7) 42... Kf4 $1 $11 {The position is equal.} 43. Rh8 Kg3 44. a6 Bc5 45. f4 {Black must now prevent Kd3.} Bb6 46. Kd3 h2 47. Kc4 Kg2 $1 48. Kd5 h1=Q 49. Rxh1 Kxh1 {KB-KPP} 50. Ke5 Kg2 51. Kxf5 Kf3 52. Ke5 {Strongly threatening f5.} Kg4 $1 53. f5 {Hoping for f6.} Kg5 54. Ke6 {White threatens f6 and mate.} Bc5 55. Ke5 Ba7 56. Ke6 {And now f6 would win.} Bc5 57. f6 Kg6 58. f7 {Intending a7! and mate.} Kg7 59. f8=Q+ Kxf8 60. a7 Bxa7 {Blacks defense is rewarded with a draw. Accuracy: White = 79%, Black = 69%.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.27"]
[Round "6.3"]
[White "Zwirs, Nico"]
[Black "Warakomski, Tomasz"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2443"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,84,27,39,26,34,61,61,67,66,76,59,55,48,60,120,110,116,114,129,118,121,108,120,130,88,92,91,103,182,186,331,330,314,55,47,45,46,43,37,44,51,39,39,-90,-110,-136,-146,-142,-150,-150,-147,-150,-150,-151,-143,-141,-150,-281,-270,-278,-271,-332,-282,-319,-282,-317,-323,-444,-443,-444,-412,-431,-417,-1154,-1345,-893,-827]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. g4 Nc6 {[#]} 6. d5 $146 {B06: Modern Defence.} ({Predecessor:} 6. h3 e5 7. d5 Nce7 8. Nf3 Nf6 9. Qd2 h5 10. g5 Nd7 11. O-O-O b5 12. Ne1 Nb6 {1-0 (34) Kasimdzhanov,R (2652)-Khoroshev,N (2399) Tashkent 2019}) 6... Na7 7. Bd4 Kf8 8. Bxg7+ {White is slightly better.} Kxg7 9. Qd4+ f6 10. f3 c5 11. Qd2 b5 (11... Qa5 $14) 12. h4 $16 b4 13. Nce2 e5 14. dxe6 Bxe6 15. Nf4 Bf7 16. Nge2 Nc6 17. Ng3 Nge7 18. h5 d5 (18... Qc7 $16) 19. exd5 $18 Nd4 (19... g5 {was worth a try.}) 20. O-O-O Nxd5 21. hxg6 $2 ({Better is} 21. h6+ $18 Kf8 22. Ne4) 21... hxg6 $14 22. Rxh8 Qxh8 23. Nxd5 Bxd5 24. c3 bxc3 25. bxc3 Qb8 26. cxd4 (26. Ne4 $14 {keeps the upper hand.} Bxe4 27. fxe4) 26... Qxg3 $17 27. dxc5 Qxf3 {aiming for ...Qa3+.} 28. Qd3 {[#]} (28. Qxd5 $2 Qc3+ 29. Kb1 Rb8+ 30. Qb3 Rxb3+ 31. axb3 Qxb3+ 32. Kc1 Qc3+ 33. Kb1 Qb4+ 34. Kc2 Qxc5+ 35. Kb3 a5 $19) 28... Rc8 $1 {[%cal Rc8c5]} 29. Qxf3 ({Don't go for} 29. Qxd5 $2 Qc3+ 30. Kb1 Rb8+ 31. Qb3 Rxb3+ 32. axb3 Qxb3+ 33. Kc1 Qc3+ 34. Kb1 Qb4+ 35. Kc2 Qxc5+ 36. Kb3 a5 $19) 29... Bxf3 {[%mdl 4096] Endgame KRB-KRB} 30. Rd4 Rxc5+ 31. Kd2 a5 32. Ke3 Bd5 33. Rd2 (33. a3 $17 {is a better defense.}) 33... Be6 $19 34. Be2 {[#]} Rc3+ $1 35. Kf4 g5+ 36. Ke4 Ra3 37. Rd6 Ra4+ ({Weaker is} 37... Bxa2 38. Ra6 $19) ({Resist} 37... Rxa2 38. Bd1 $19) 38. Ke3 Bxg4 39. Bd3 Rxa2 40. Ra6 f5 41. Kd4 (41. Bb1 $142 Re2+ 42. Kd3) 41... Be2 42. Ra7+ Kg6 {Never resign too early! Accuracy: White = 60%, Black = 81%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.27"]
[Round "6.4"]
[White "Trent, Lawrence"]
[Black "Admiraal, Miguoel"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2386"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,63,43,44,43,43,43,56,43,43,45,37,21,20,24,33,11,22,25,16,13,18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,123,125,229,229,221,218,194,200,1376,1364,1377,971,1314,1300,1287,1223,1043,1040]} 1. e4 c6 2. Nc3 d5 3. Nf3 Qa5 {[#]} 4. Qe2 $146 ({Predecessor:} 4. h3 dxe4 5. Nxe4 Bf5 6. Qe2 e6 7. c3 Nd7 8. g4 Bg6 9. d4 Ngf6 10. Nxf6+ Nxf6 11. Ne5 {0-1 (36) Lu,S (2624)-Sunilduth Lyna,N (2603) Xingtai 2019}) 4... Bg4 5. exd5 Nf6 6. h3 {B11: Caro-Kann: Two Knights Variation.} Bxf3 $1 7. Qxf3 ({Much worse is} 7. gxf3 cxd5 8. Qb5+ Qxb5 $11) 7... Nxd5 8. Bc4 {[%cal Rc3d5] White is slightly better.} e6 9. O-O Be7 10. Qg3 O-O 11. Ne4 Nd7 12. d3 Rfd8 13. Bh6 {[%csl Gh6][%cal Rg3g7]} g6 14. Rae1 N7f6 15. Qf3 Nxe4 16. Rxe4 Rd7 17. h4 Qd8 18. g3 Bf6 19. Bc1 b5 20. Bb3 a5 21. a3 h5 22. g4 hxg4 23. Qxg4 Kg7 {[#]} (23... Bg7 $11 24. Ree1 Qf8) 24. h5 $1 $16 Qh8 (24... Qc7 $16 {keeps fighting.}) 25. hxg6 $18 Rg8 {[#] White should prevent ...Kf8.} 26. Kg2 $1 {Strongly threatening Rh1.} Kf8 27. Rh1 Qg7 $2 (27... Rxg6 28. Rxh8+ Bxh8 29. Qxg6 {[%mdl 64] Remove Defender, Deflection} (29. Bg5 Bf6 $16) 29... fxg6 30. Rxe6 {[%mdl 64] Double Attack} Bxb2) 28. Bh6 {White is clearly winning.} Bxb2 29. Qf3 Qxh6 30. Rxh6 Bc1 {[#]} 31. Bxd5 $1 cxd5 {[#]} 32. Rf4 $1 {Accuracy: White = 96%, Black = 67%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.27"]
[Round "6.5"]
[White "Sukandar, Irine Kharisma"]
[Black "Feuerstack, Aljoscha"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2408"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,101,18,14,8,14,16,23,10,23,23,20,10,23,20,21,8,18,4,137,137,135,134,138,136,125,82,76,62,164,170,168,162,171,163,319,314,506,308,452,241,851,627,772,645,598,444,598,599,702,690,670,653,593,598,745,758,743,743,901,808,798,791,775,760,819,825,821,820,802,793,812,815,1227,1207,1518,1427,1557,1345,1189,1041,29980,29971]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Nc3 Nxc3 10. bxc3 dxc4 11. Bxc4 Bf5 12. Re1 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Nd7 13. Bg5 Qa5 14. Nh4 {White has an edge.} Nb6 15. Bb3 {And now c4 would win.} Bd7 16. Bd2 Rae8 17. Qf3 {[#] aiming for Rxe8.} Be6 $146 ({Predecessor:} 17... Re7 18. g3 Rfe8 19. Ng2 Be6 20. Ne3 Qb5 21. Qe2 Qxe2 22. Rxe2 c5 23. Ree1 cxd4 24. cxd4 Bxb3 25. axb3 {1-0 (36) Clair,M (2185)-Armand,L (1859) France AJEC 2002}) 18. g3 Re7 19. Qd3 {Hoping for c4.} Rfe8 (19... Qb5 $11 {remains equal.} 20. Qc2 Nc4) 20. c4 $16 Bb4 21. Re5 $1 {[%cal Re5a5]} (21. Bxb4 $6 Qxb4 22. Nf5 Bxf5 $11) 21... Qa3 22. Bg5 $1 ({But not} 22. Bxb4 $6 Qxb4 23. Nf5 Bxf5 $11) 22... Rd7 23. Bc1 Qa6 24. Bb2 Rdd8 {[#] White stays focused until the end.} (24... g6 $14) 25. d5 $1 $18 Rxd5 26. Rxd5 Nxd5 (26... cxd5 $2 {loses.} 27. Bc2 $18 (27. Qd4 Bf8 $11)) 27. Bc2 Nf6 $2 (27... g6 28. Ng2 (28. cxd5 Qxd3 29. Bxd3 Bxd5 $16) 28... Bc5) 28. Bxf6 $1 gxf6 $2 (28... g6 {might work better.} 29. Bb3 Qa5) 29. Qxh7+ Kf8 30. Rb1 $40 {[%mdl 128] White attacks with force.} (30. Rd1 $142 Qa5 {[#]} 31. a3 $1 {[%mdl 512]}) 30... c5 $2 (30... Qa5 31. a3 Qxa3) 31. Rd1 Qxc4 32. Qh6+ {[%mdl 64] Double Attack} Ke7 {[#]} 33. Ng6+ $1 {[%mdl 512]} fxg6 34. Bb3 Qd4 35. Rxd4 cxd4 36. Qg7+ Kd6 37. Qxf6 Bc5 38. Qxg6 Re7 39. h4 Ke5 40. Qg5+ Kd6 41. Qf4+ Kd7 42. Qb8 {White wants to mate with Ba4+.} Kc6 43. Bxe6 Rxe6 {[%mdl 4096] Endgame KQ-KRB} 44. Qc8+ Kd6 45. Qxb7 Bb6 46. Qf3 Re5 47. h5 Rd5 48. Qd3 Bd8 49. h6 {Strongly threatening Qg6+.} Bf6 50. Qa6+ Ke5 51. f4+ {Accuracy: White = 89%, Black = 49%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.28"]
[Round "7.1"]
[White "Reinderman, Dimitri"]
[Black "Nijboer, Friso"]
[Result "0-1"]
[ECO "A18"]
[WhiteElo "2582"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,78,12,10,14,17,8,0,0,0,0,0,0,12,0,-19,0,-50,-38,-42,-18,-69,-75,-73,-77,-80,-73,-60,-64,-64,-65,-64,-51,-63,-75,-75,-76,-76,-76,-76,-76,-78,-75,-87,-62,-70,-67,-114,-59,-135,-87,-412,-397,-531,-510,-477,-247,-239,-243,-1016,-1008,-977,-968,-1258,-1247]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. Nf3 b6 8. d4 Bb7 9. Bd3 {Threatening Bg5. The main line 9.Bd3 scores better than 9.Be2.} h6 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4).} 10. Qe2 Nd7 11. Be4 Bxe4 {The position is equal.} 12. Qxe4 Rc8 {[#]} 13. Qb7 $146 ({Predecessor:} 13. Qc6 Bd6 14. a4 Qd8 15. O-O O-O 16. Be3 Nf6 17. h3 Qd7 18. Qxd7 Nxd7 19. a5 {½-½ (29) Klausen,T (2467)-Bykov,E (2274) ICCF email 2012}) 13... Qd8 14. Qxa7 Bd6 15. O-O O-O (15... Ra8 $5 16. Qb7 $8 O-O $11) 16. Be3 Ra8 17. Qb7 Ra5 18. Qc6 ({Better is} 18. Qe4 $11) 18... Qa8 $15 19. Qxa8 (19. Qxd7 $2 Rd8 $19) 19... Rfxa8 20. Rfb1 Rxa2 21. Rxa2 Rxa2 22. Kf1 f5 23. g3 g5 24. Rb5 Kf7 25. Ke1 Ke8 26. h4 g4 27. Nd2 h5 28. Kd1 c6 $36 {[%mdl 2048] Black is really pushing.} 29. Rb1 c5 30. Rb3 Kd8 31. Nb1 Kc8 ({Black should try} 31... e5 $17 {Strongly threatening ...f4.} 32. dxe5 Bxe5) 32. Bd2 (32. Nd2 $1 $15) 32... e5 33. dxe5 $2 {[%mdl 8192] [#]} (33. Ra3 $17 {is a better chance.} Rxa3 34. Nxa3) 33... Nxe5 $19 34. Ra3 Rb2 35. Ra1 Nxc4 (35... Nd3 $142 36. Ra8+ Kb7) 36. Kc1 Bb8 37. Ra4 $2 {[#]} (37. Be1 Re2 38. Kd1) 37... Rxb1+ $1 {[%mdl 576] Remove Defender, Deflection. Black is clearly winning.} 38. Kxb1 Nxd2+ 39. Kc2 Ne4 {White got outplayed after the opening. Accuracy: White = 51%, Black = 82%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.28"]
[Round "7.2"]
[White "Bosboom, Manuel"]
[Black "Zwirs, Nico"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2410"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,55,0,6,-11,-2,-6,0,-18,-19,-61,-45,-58,-18,-18,-13,-5,41,0,0,-19,-11,-13,-9,-36,-36,-82,-75,-77,-73,-62,-13,-14,0,0,7,11,12,-18,0,0,7,-21]} 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. d3 Bg7 6. e4 d6 7. c4 c5 8. Nc3 O-O 9. Ng5 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} Nc6 10. f4 e6 {[#]} 11. Nh3 $146 ({Predecessor:} 11. f5 Qe7 12. Bf4 Nd4 13. g4 Nd7 14. Nf3 exf5 15. gxf5 gxf5 16. Nxd4 Bxd4+ 17. Kh1 {1-0 (40) Kortschnoj,V (2620)-Stefansson,H (2557) Istanbul 2000}) 11... Nd4 12. g4 Nd7 13. f5 Ne5 14. Bg5 f6 15. Be3 Nec6 16. fxe6 Nxe6 17. Nd5 Ne5 18. Nhf4 Nxf4 19. Nxf4 {Threatening Ne6.} Qd7 20. Bh3 Rae8 21. Rf2 Bc8 22. Rg2 Nf7 23. Rg3 {The position is equal.} Ng5 24. Bg2 Ne6 25. Nd5 Nc7 26. Nf4 Ne6 27. Nd5 Nc7 28. Nf4 {Accuracy: White = 68%, Black = 81%.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.28"]
[Round "7.3"]
[White "Warakomski, Tomasz"]
[Black "Trent, Lawrence"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2501"]
[BlackElo "2386"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,119,23,31,35,38,38,39,34,23,14,31,19,40,20,21,14,37,4,31,22,41,23,25,27,53,0,0,-33,-29,-44,-41,-88,-31,-79,-69,-70,-34,-35,-19,-96,-29,-12,0,0,0,0,0,0,0,-46,-36,-68,-50,-43,-35,-76,-26,-14,0,0,-5,-18,-27,-184,-181,-231,-216,-294,-287,-290,-66,-61,-26,-30,-30,-30,-29,-25,-16,-12,-8,0,0,0,0,0,0,0,0,0,0,0,0,-29974,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 d6 6. a4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} g5 7. Qb3 Qe7 8. a5 {White is slightly better.} a6 {[#]} 9. Be3 $146 ({Predecessor:} 9. Nbd2 Nd7 10. Nf1 Nc5 11. Qc2 f5 12. b4 fxe4 13. dxe4 Ne6 14. Ne3 Nf4 15. g3 {1-0 (41) Savchenko,B (2577)-Gareyev,T (2598) Moscow 2019}) 9... Bg7 10. Nbd2 O-O 11. O-O (11. h4 $5 {[%cal Rh4g5]}) 11... Nh5 12. Kh1 Kh8 13. Ng1 Nd8 14. Qd1 g4 15. d4 f5 16. exf5 Bxf5 17. Be2 (17. Ne2 $14) 17... exd4 $11 18. cxd4 Nf6 19. Ra3 Nc6 20. Bd3 Qd7 (20... Bxd3 $17 21. Rxd3 Qe6) 21. Ne2 Bxd3 22. Rxd3 Qf5 23. Ra3 Rae8 24. Nc4 (24. f3 $11) 24... Ne4 (24... Qe6 $17 25. Ra4 Nd5) 25. Nd2 Nb4 26. Nxe4 Qxe4 27. Ng3 Qg6 28. Rb3 Nd5 29. Rxb7 h5 30. Rb3 $1 h4 $36 {[%mdl 2048] Black is more active.} 31. Ne2 Qe4 32. Qb1 Qxb1 (32... Qe6 {feels hotter.} 33. Kg1 h3 34. gxh3 Rf3 35. Ng3 Bh6) 33. Rxb1 Rb8 34. Rxb8 Rxb8 35. Bd2 c5 36. Kg1 $2 (36. dxc5 $11 dxc5 37. h3) 36... cxd4 $19 ({Worse is} 36... Bxd4 37. Nxd4 cxd4 38. b4 $11) 37. Kf1 {[#]} Nc3 $1 {[%cal Rc3b1][%mdl 512]} 38. Rc1 (38. bxc3 Rxb1+) 38... Ne4 ({Stronger than} 38... Rxb2 39. Bxc3 dxc3 40. Nxc3 $11) 39. Rd1 Rxb2 $2 ({Black should try} 39... d3 $19 40. Be1 dxe2+ 41. Kxe2 Be5) 40. Be1 $15 Nc3 41. Nxc3 $1 dxc3 42. Rxd6 $11 {[%mdl 4096] Endgame KRB-KRB} c2 43. Rc6 Kg8 {Threatens to win with ...Bh6!} 44. Bd2 Bf8 45. Ke2 ({Much weaker is} 45. Rxa6 Bb4 $17) 45... c1=Q 46. Rxc1 Bb4 47. Rd1 $1 Bxa5 48. Kd3 Bxd2 49. Rxd2 Rxd2+ 50. Kxd2 {K3P-K3P} Kf7 51. Ke3 $2 {[%mdl 8192] [#]} (51. Kc3 $11) 51... Kf6 $2 (51... h3 $1 {mates} 52. gxh3 gxh3 53. f3 a5 54. Kd4 Kf6 55. f4 Kf5 56. Ke3 a4 57. Kd4 Kxf4 58. Kd3 Kf3 59. Kd2 Kg2 60. Kd3 Kxh2 61. Kc3 Kg3 62. Kb4 h2 63. Kxa4 h1=Q 64. Kb5 Qd5+ 65. Kb4 Qc6 66. Ka3 Kf4 67. Kb4 Ke3 68. Ka5 Kd3 69. Kb4 Qb6+ 70. Ka4 Kc4 71. Ka3 Qb3#) 52. f3 $1 {[%cal Rf3g4] The position is equal.} gxf3 (52... h3 $5 53. g3 $8 gxf3 54. Kxf3 a5 $11) 53. Kxf3 {KPP-KPP} Kf5 54. Ke3 a5 55. Kd3 Kf4 56. g3+ hxg3 57. hxg3+ Kxg3 58. Kc4 a4 59. Kb4 a3 60. Kxa3 {Accuracy: White = 69%, Black = 78%.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.28"]
[Round "7.4"]
[White "Feuerstack, Aljoscha"]
[Black "Van Haastert, Edwin"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2459"]
[BlackElo "2438"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,67,18,8,21,8,15,8,15,0,12,2,6,6,0,0,4,0,2,0,37,22,63,41,41,27,84,89,95,94,94,81,112,101,109,23,29,41,185,179,370,366,451,452,560,441,1127,608,576,499,1037,1178,1157,1142,6370,1095,29997,29998]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 b5 6. Bb3 Bc5 7. d3 h6 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 8. Nd5 d6 9. c3 Rb8 {The position is equal.} 10. O-O {[#]} Nxd5 $146 ({Predecessor:} 10... O-O 11. Be3 Nxd5 12. Bxd5 Bxe3 13. fxe3 Ne7 14. Bb3 Be6 15. Nh4 Qd7 16. Qh5 c5 {½-½ (34) Vachier Lagrave,M (2775)-Anand,V (2764) Paris 2019}) 11. exd5 Ne7 $1 12. d4 exd4 13. Nxd4 O-O 14. Qd3 Bxd4 15. Qxd4 Re8 (15... Nf5 $5 {[%cal Rf5d4]} 16. Qd3 Nh4 $14) 16. Bd2 Bb7 17. Rfe1 Qd7 18. h3 c5 (18... Qf5 $11 {remains equal.}) 19. dxc6 $1 $16 Qxc6 {[%csl Gb7][%cal Rc6g2] [#]} 20. Qg4 {Black must now prevent Bxh6.} d5 21. Re5 Ng6 22. Rxd5 a5 {Threatens to win with ...a4.} 23. Rf5 (23. Rd4 $16) 23... Ne5 $11 24. Qg3 {Hoping for Bf4.} Nc4 {This move loses the game for Black.} ({Black should try} 24... Rbd8 $14 25. Be3 Rd6) 25. Be3 $40 {[%mdl 128] Bd4 is the strong threat. White wants a kill.} Rbd8 $2 (25... a4 {keeps fighting.}) 26. Bd4 {[%csl Gd4][%cal Rg3g7]} g6 27. Rc5 Qd7 28. Rh5 Re4 (28... Qc6 $142 29. Rxh6 Rxd4) 29. Rxh6 {[%csl Gd4][%cal Rh6h8]} Rxd4 30. cxd4 {aiming for Bxc4.} Qxd4 {[#]} (30... Qe7 $142 31. Rh5 a4 32. Bxc4 bxc4) 31. Rd1 $1 Qxd1+ 32. Bxd1 Rxd1+ 33. Kh2 {Intending Qb8+ and mate.} Nd2 34. Qb8+ {[%mdl 64] Double Attack. Accuracy: White = 81%, Black = 46%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.28"]
[Round "7.5"]
[White "Admiraal, Miguoel"]
[Black "Sukandar, Irine Kharisma"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2501"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "146"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,146,6,0,0,0,0,-2,-7,-17,-10,-20,3,-39,-38,-55,-31,-30,-36,-52,-48,-82,-88,-68,-42,-81,-91,-60,-64,-130,-114,-151,-173,-208,-81,-81,-83,-93,-47,-44,-41,-41,-37,-96,-109,-96,0,0,0,0,0,0,0,-43,0,-45,-45,-49,-53,-71,-46,-70,-58,-72,-69,-84,-79,-131,-129,-130,-128,-133,-133,-204,-197,-191,-183,-198,-162,-175,-160,-160,-159,-162,-126,-129,0,-154,0,-234,-234,-220,-237,-220,-218,-201,-175,-235,-175,-197,-175,-175,-175,-175,-175,-274,-274,-363,-355,-354,-346,-425,-266,-572,-561,-641,-623,-675,-617,-719,-703,-886,-868,-1158,-1121,-1129,-1100,-2338,-1096,-1185,-1213,-1197,-1196,-1148,-1146,-29983,-29984,-29984,-29985]} 1. e4 c5 2. Nc3 d6 3. Bc4 Nc6 4. Nf3 g6 5. O-O Bg7 6. h3 e6 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} 7. d3 Nge7 8. a3 O-O {The position is equal.} 9. Ba2 {[#]} h6 $146 ({Predecessor:} 9... b6 10. Bf4 h6 11. Qd2 g5 12. Be3 Nd4 13. Nh2 Ng6 14. Nd1 Ba6 15. Re1 Nc6 {½-½ (24) Kamsky,G (2677)-Sakaev,K (2596) Moscow 2019}) 10. Be3 f5 11. Qd2 Kh7 12. exf5 gxf5 13. Rae1 Ng6 {Strongly threatening ...f4.} 14. Qd1 f4 15. Bd2 d5 16. Na4 Qd6 17. c4 d4 $1 18. b4 b6 $1 19. Re4 (19. Qe2 $15) 19... e5 20. Qe2 cxb4 21. c5 Qf6 (21... bxc5 $19 {has better winning chances. ...Rb8 is the strong threat.} 22. Nb2 Bf5) 22. axb4 b5 $1 {[%cal Rb5a4]} 23. Nb2 Bf5 24. Ra1 Rfd8 25. Bb3 a6 26. Ra2 {[#]} (26. g4 $15 Bxe4 27. Qxe4) 26... Nge7 $1 $17 27. g4 Bxe4 (27... Bg6 $17) 28. dxe4 $11 Ra7 29. Nd3 Ng6 30. Bd5 Rc8 31. Kg2 Nce7 32. Bb3 Nh4+ 33. Nxh4 Qxh4 34. Ne1 Qf6 35. Nf3 Rd8 36. Qd3 Ng6 37. Bd5 Qe7 38. Bb3 ({Better is} 38. Qb3) 38... Bf6 $17 39. Ra1 Nh4+ 40. Nxh4 Bxh4 41. f3 (41. Qf3 $17) 41... Bg3 $19 42. Bd5 {[#]} h5 $1 43. Qb3 (43. gxh5 Qf6) 43... Kg7 44. Be6 hxg4 45. Bxg4 Qf7 46. Be6 Qg6 47. Bf5 Qf7 48. Be6 $1 {[%cal Re6f7] Black keeps a firm grip on the game.} Qe7 $2 ({Black should play} 48... Qe8 $17 49. Kg1 Bh4) 49. Rg1 $2 (49. Bg4 $1 $11) 49... Kf6 50. Bg4 Qf7 51. Qxf7+ Kxf7 52. Rc1 Rc7 53. Ra1 (53. Kf1 $142) 53... Rc6 54. Ra3 Bh4 55. Kf1 Ke8 56. Ke2 Ra8 57. Kd3 {[#]} (57. Bh5+ $142 Kd7 58. Bg4+ Kc7 59. Ra5) 57... a5 $1 58. bxa5 (58. Rxa5 Rxa5) 58... Be7 ({Not} 58... Rxc5 59. Be6 $17) 59. Ra1 Bxc5 60. h4 Bf8 61. h5 $2 (61. Bh5+ {nothing else works.} Kd7 62. Bf7) 61... b4 62. Bf5 b3 63. Bg6+ Ke7 64. Bh7 Kf7 65. Rg1 Ba3 66. Bg6+ Ke7 67. Bf5 b2 68. h6 Rc1 (68... Rb8 $142 69. Rb1 Rb3+ 70. Ke2 Rxh6 71. Bh3 Rxh3 72. Ke1 Rbxf3 73. Rxb2 Bxb2 74. a6 d3 75. Ba5 Rh1+ 76. Kd2 Rh2+ 77. Kd1 Rf1+ 78. Be1 {[#]} Re2 $1 {[%mdl 512]} 79. a7 Rfxe1#) 69. Rg7+ Kf8 70. Rb7 b1=Q+ 71. Rxb1 Rxb1 72. Kc4 Rd1 73. h7 Kg7 {Accuracy: White = 53%, Black = 76%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.29"]
[Round "8.2"]
[White "Admiraal, Miguoel"]
[Black "Warakomski, Tomasz"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2501"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,90,25,46,49,55,60,55,44,52,50,37,41,52,54,59,59,83,74,77,69,79,56,62,56,56,57,57,54,56,50,55,0,0,0,10,0,0,-7,0,-17,-3,-26,0,0,0,-62,-11,-83,-67,-121,-90,-90,-91,-190,-192,-222,-238,-323,-298,-335,-335,-335,-334,-335,-331,-324,-322,-294,-250,-373,-373,-366,-351,-885,-914,-1171,-1132,-1106,-1056,-1121,-1144,-1154,-1124]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 Bg4 6. Na3 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} e6 7. Nxc4 Bb4+ 8. Bd2 {[#] White is slightly better.} Bxd2+ $146 ({Predecessor:} 8... Be7 9. Qb3 b6 10. Nfe5 O-O 11. Rd1 Qxd4 12. Be3 {1-0 (12) Horvath,R (1971)-Wallner,D (2134) Graz 2009}) 9. Qxd2 Bxf3 10. Bxf3 {And now Qb4 would win.} Na6 11. O-O O-O 12. b4 Qe7 13. Rab1 Rac8 14. Rfc1 Rfd8 15. e3 Nd5 16. a3 Nac7 17. a4 Ne8 18. Na5 Nd6 19. Qb2 g6 20. b5 ({White should try} 20. Qa2 $14) 20... cxb5 $1 $11 21. axb5 Qd7 22. Bxd5 exd5 23. b6 a6 24. Nb3 Rxc1+ 25. Qxc1 Nc4 26. Nc5 Qc6 27. Nd3 ({White should play} 27. h4 $11) 27... Rd6 (27... Ra8 $15) 28. Nb4 (28. Nc5 $11) 28... Qc8 {Black keeps a firm grip on the game.} 29. Nd3 (29. Nxa6 $15 bxa6 30. b7) 29... Rxb6 30. Rxb6 Nxb6 31. Qc5 (31. Qa3 $17 {might work better.}) 31... Qxc5 $19 32. Nxc5 {[%mdl 4096] Endgame KN-KN} a5 {[%cal Ba6a5,Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 33. Nxb7 a4 34. Nc5 a3 35. Kf1 a2 36. Nb3 f5 37. Ke2 Kg7 38. Kd3 Kf6 39. Kc3 (39. Ke2 $142) 39... Nc4 40. Na1 Kg5 41. Kb4 $2 {[#]} (41. h3 h5 42. Kb3) 41... Kg4 {Black is clearly winning.} 42. Kc5 Kf3 43. Kxd5 Nd2 44. Ke5 Kxf2 45. Kf4 Nc4 {Accuracy: White = 56%, Black = 91%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.29"]
[Round "8.3"]
[White "Trent, Lawrence"]
[Black "Bosboom, Manuel"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2386"]
[BlackElo "2410"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,9,28,22,33,12,15,16,34,-15,25,31,15,-22,-6,-3,-15,-27,-6,-14,20,0,41,11,116,100,104,97,303,345,332,322,342,352,322,298,282,262,301,296,318,283,288,277,258,284,294,290,324,306,853,658,997,948,933,613,609,605,609,622,1088,973,1713,935,1508,1495]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 a6 5. Bd3 Nc6 6. O-O {B23: Closed Sicilian: Lines without g3.} e6 7. b3 g5 8. Bb2 {[#] aiming for Nd5.The position is equal.} Bg7 {[#]} 9. Kh1 $146 ({Predecessor:} 9. Na4 Bxb2 10. Nxb2 g4 11. Ne1 h5 12. c3 Nge7 13. f4 d5 14. Qe2 Qc7 15. Bc2 {1-0 (35) Martinez Duany,L (2528)-Nagy,G (2474) Famalicao 2018}) 9... g4 10. Ng1 h5 11. Qc1 Nf6 12. Qe1 d6 13. Nd1 Bd7 14. Ne3 b5 15. f4 Qb6 16. Qh4 Nd4 (16... Qd8 $1 $11) 17. c3 $36 {[%mdl 2048] White has strong initiative.} Nc6 18. a4 {[#] Strongly threatening axb5.} c4 $2 {Now Black is done in.} (18... Rb8 $16 {was worth a try.}) 19. bxc4 $18 bxa4 20. Ba3 Qc7 21. Ne2 Ng8 22. Rab1 Bf6 23. Qe1 Be7 24. Bc2 h4 25. Nxg4 ({But not} 25. Bxa4 $6 Qa5 $18) 25... h3 26. g3 ({Don't do} 26. Bxa4 $6 hxg2+ 27. Kxg2 Qa5 $16) 26... Na5 27. d3 f5 28. Nf2 fxe4 29. Nd4 (29. dxe4 Nxc4 30. Bc1 e5 $14) 29... e5 $2 (29... exd3 30. Bxd3 Nf6) 30. Qxe4 {White is clearly winning.} Nc6 31. Qg6+ Kd8 32. Ne6+ Bxe6 33. Qxe6 Nf6 34. Ne4 Nxe4 35. dxe4 exf4 36. gxf4 Na5 37. c5 {Accuracy: White = 74%, Black = 43%.} 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.29"]
[Round "8.4"]
[White "Zwirs, Nico"]
[Black "Reinderman, Dimitri"]
[Result "*"]
[ECO "B45"]
[WhiteElo "2443"]
[BlackElo "2582"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,55,33,31,30,22,33,26,25,27,38,37,42,37,38,33,64,34,29,0,18,-5,0,0,0,0,58,56,136,73,116,92,95,77,89,85,65,14,64,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bc5 {Recently 6...Bb4 got a lot of attention.} 7. Bf4 {[#] And now Nc7+ would win.} O-O {B45: Sicilian Four Knights.} 8. Bc7 Qe7 9. Bd6 $1 {[%cal Rd6e7]} Bxd6 {White has an edge.} 10. Qxd6 Qd8 11. O-O-O Ne8 12. Qg3 a6 13. Nd6 {[#]} b5 $146 {[%cal Bb7b5,Bb5b4][%mdl 32]} ({Predecessor:} 13... Nxd6 14. Rxd6 b5 15. Be2 Qa5 16. Kb1 b4 17. Nd1 Qc5 18. Qd3 a5 19. Qd2 a4 {0-1 (34) Stepanyan,E (1881)-Maltsevskaya,A (2318) Moscow 2020}) 14. Kb1 Qa5 15. Nxe8 Rxe8 16. e5 b4 17. Ne4 {[#] Nf6+ is the strong threat.} Qxe5 18. Nd6 Rd8 (18... Qxg3 $11 19. hxg3 Rd8) 19. f4 $36 {[%mdl 3072] White has compensation. White has some pressure.} Qc5 (19... Qf6 $14) 20. f5 (20. Qh4 $142) 20... Qe5 21. Qf3 (21. Qf2 {seems wilder.} Rf8 22. g4 a5 23. Bb5 a4 24. Rhe1) 21... Rf8 22. Bc4 {Strongly threatening Rhf1.} a5 23. Rhe1 Qf6 24. g4 (24. Qe4 $14) 24... Ba6 25. Ne4 ({Better is} 25. Bb3 $14) 25... Qh4 $1 $11 {The position is equal.} 26. Bxa6 Rxa6 27. Nc5 Ra7 28. Rf1 {Accuracy: White = 77%, Black = 63%.} *

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.02.29"]
[Round "8.5"]
[White "Nijboer, Friso"]
[Black "Feuerstack, Aljoscha"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "2469"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,86,0,-4,-8,-22,-20,-17,-15,-24,-21,-20,-37,-69,-79,-78,-69,-79,-58,-71,0,0,0,0,0,0,0,0,148,-11,-18,-18,-11,-110,-110,-203,-208,-199,-211,-206,-204,-206,-205,-208,-170,-194,-156,-158,-165,-160,-170,-172,-162,-184,-144,-148,-138,-174,-175,-190,-181,-207,-209,-208,-195,-212,-190,-196,-147,-201,-195,-279,-272,-365,-330,-1415,-1413,-1410,-1281]} 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bc5 5. O-O O-O 6. d3 Nd4 {C48: Four Knights: 4 Bb5, replies other than 4...Bb4.} 7. Nxe5 d6 8. Nf3 Bg4 {Strongly threatening ...c6.The position is equal.} 9. Be3 $1 Bxf3 10. gxf3 Nh5 11. Bc4 Qh4 $1 {[%cal Rh4h3] Hoping for ...Qh3.} 12. Kg2 b5 13. Bb3 (13. Bxb5 $2 Nxb5 14. Nxb5 Bxe3 $19) 13... Kh8 {[#] Threatens to win with ...f5.} 14. Ne2 $146 ({Predecessor:} 14. Nd5 c6 15. Nc7 Rac8 16. Na6 Bb6 17. Nb4 a5 {0-1 (17) Lauer,F (974)-Narkun,M (2265) LSS email 2013}) 14... Nxf3 (14... Nxe2 $1 $17 15. Qxe2 f5) 15. Ng3 Qxh2+ ({Don't play} 15... Bxe3 16. Qxf3 Bf4 17. Qxh5 $16) 16. Kxf3 {And now Rh1 would win.} Nxg3 17. Bf4 {[%mdl 64] Pin} f5 {( -> ...fxe4+)} 18. Bxg3 Qh3 {[#]} (18... fxe4+ $1 $11 19. Ke2 exd3+ 20. Qxd3 (20. Kxd3 Qg2 $11) 20... Rae8+ 21. Kd1 Qh3) 19. Ke2 $2 ({White has to play} 19. d4 $1 $16) 19... f4 $1 $11 {[%cal Rf4g3]} 20. Rh1 Qg4+ $40 {[%mdl 128] Black mounts an attack.} 21. f3 (21. Kd2 $11 Qxd1+ 22. Raxd1 fxg3 23. fxg3) 21... Qxg3 $17 {[%csl Gc5][%cal Rg3f2]} 22. d4 (22. Qf1 $17 {was the only defense.}) 22... Qg2+ $19 23. Kd3 {[#]} Bxd4 $1 {[%mdl 512] White must now prevent ...c5.} 24. Qf1 (24. Kxd4 Qf2+) 24... Qxf1+ 25. Raxf1 Bxb2 26. c3 c6 27. Be6 Rad8 28. Rfg1 Ba3 29. Bf5 h6 30. Rg6 Bc5 31. Ra1 d5 32. Kc2 Rd6 {...Rxg6 is the strong threat.} 33. Rxd6 Bxd6 $17 {[%mdl 4096] Endgame KRB-KRB} 34. a4 b4 35. cxb4 Bxb4 36. Kd3 Rf6 37. Bc8 dxe4+ 38. Kxe4 Bd2 39. a5 (39. Rd1 $17 Rd6 40. Rb1) 39... c5 $19 40. a6 (40. Ra2 {was worth a try.} Bb4 41. Kd5) 40... c4 41. Ra4 Rc6 42. Bd7 $2 (42. Bb7 Rc7 43. Ra2) 42... Rc7 43. Bf5 {[#]} g6 $1 {Accuracy: White = 53%, Black = 84%.} 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.03.01"]
[Round "9.1"]
[White "Bosboom, Manuel"]
[Black "Admiraal, Miguoel"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2410"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,88,-9,-28,-5,-13,-12,-10,-12,-51,-47,-45,-46,-50,-26,-37,-36,-79,-43,-69,-50,-62,-41,-31,-36,-86,-83,-89,-81,-85,-73,-100,-104,-95,-84,-89,-85,-113,-133,-129,-79,-68,0,0,0,-10,-20,-8,-14,-9,-10,-10,-10,-16,-10,-11,-12,-12,0,0,0,0,0,0,0,0,0,0,0,-2708,-2331,-1697,-1107,-12841,-12842,-12841,-12842,-12843,-12843]} 1. c4 e5 2. b3 Nf6 3. Bb2 Nc6 4. e3 d5 5. cxd5 Nxd5 6. a3 Bd6 7. Qc2 Qg5 {A01: Nimzowitsch-Larsen Opening.} 8. Nf3 Qg6 9. Qxg6 $1 hxg6 {The position is equal.} 10. Bc4 Nb6 $1 11. Bb5 Bd7 12. Nc3 {[#]} Na5 $146 ({Predecessor:} 12... f5 13. Ke2 e4 14. Ng5 a6 15. Bxc6 bxc6 16. f3 exf3+ 17. gxf3 c5 18. a4 Rb8 {1-0 (40) Bosboom,M (2403)-Krysa,L (2533) Dieren 2018}) 13. b4 Nac4 14. Bc1 a5 15. Rb1 axb4 16. axb4 f6 17. Bxd7+ Kxd7 18. Ke2 Na4 19. Kd3 Ncb6 20. e4 g5 21. g3 Ke6 22. Kc2 Nxc3 23. dxc3 Nc4 24. Kb3 b5 25. Nd2 Nxd2+ 26. Bxd2 Rh3 (26... g4 $15) 27. Be3 $11 g6 28. Ra1 Rxa1 29. Rxa1 Rxh2 {[%mdl 4096] Endgame KRB-KRB} 30. Ra5 $1 f5 31. exf5+ gxf5 32. Rxb5 f4 33. gxf4 gxf4 34. Ba7 $1 e4 35. Kc4 Rh1 {Hoping for ...e3!} 36. Ra5 Rd1 37. Bd4 f3 38. b5 Bf4 {[#] And now ...e3! would win.} 39. Ra2 Kf5 40. Kd5 $2 {[%mdl 8192]} (40. Ra8 $11) 40... e3 $1 $19 {[%cal Re3e2] Black is clearly winning.} 41. fxe3 Bxe3 42. Ra8 f2 43. Rf8+ Kg4 44. Kc6 Rxd4 {Accuracy: White = 71%, Black = 91%.} ({Less strong is} 44... Bxd4 45. cxd4 Rc1+ 46. Kb7 $17) 0-1

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.03.01"]
[Round "9.2"]
[White "Reinderman, Dimitri"]
[Black "Trent, Lawrence"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2582"]
[BlackElo "2386"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,55,39,34,33,46,28,29,25,32,43,37,29,44,51,43,31,51,50,66,33,75,75,101,40,83,14,29,25,80,29,84,84,106,107,166,41,40,18,11,0,0,0,470,468,478,448,905,0]} 1. Nf3 b6 2. e4 Bb7 3. Nc3 e6 4. d4 Bb4 5. Bd3 Nf6 6. Nd2 {B00: Queen's Fianchetto Defence, Nimzowitsch Defence.} d6 7. O-O Nbd7 8. a3 {White has an edge.} Bxc3 $1 9. bxc3 O-O 10. Re1 {[#]} e5 $146 ({Predecessor:} 10... Re8 11. f3 h6 12. a4 a5 13. Nf1 Bc6 14. f4 Nf8 15. c4 Bb7 16. Ng3 Ng6 {½-½ (50) Ciklabakkal,M (2183)-Becker,C (2196) ICCF email 2017}) 11. Nf1 Re8 12. Ng3 Nf8 13. Qf3 g6 14. Bh6 Kh8 15. a4 Ne6 16. Be3 (16. d5 $16 Nc5 17. a5) 16... a5 17. h4 (17. d5 $16 Nc5 18. Bb5) 17... Ng8 18. d5 Ng7 (18... Nc5 $11) 19. h5 ({White should play} 19. Bg5 $16 f6 20. Bd2) 19... g5 {[#]} (19... Rf8 $11) 20. Nf1 $1 $36 {[%mdl 2048] White has strong initiative.} g4 21. Qxg4 {Threatens to win with h6.} Nf6 {[#]} (21... Bc8 $16 {might work better.} 22. Qf3 Qh4) 22. Qf3 (22. Qh4 $1 $18 {aiming for Bg5.} Nfxh5 23. Bg5) 22... Ngxh5 $14 23. Bg5 {Ng3 is the strong threat.} Rg8 24. Bh4 Rg6 25. Ne3 Bc8 $2 {[%mdl 8192] [#]} (25... Qf8 $11) 26. Qxh5 $1 $18 {[%mdl 576] Pin. White is clearly winning.} Qg8 (26... Nxh5 27. Bxd8) 27. Qf3 Nh5 (27... Qg7 $142 28. g3 Rh6) 28. g4 $2 {[%mdl 32768] Accuracy: White = 64%, Black = 59%. . Loss on time!?} (28. Qxh5 $18 Qf8 29. g3) 1-0

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.03.01"]
[Round "9.3"]
[White "Warakomski, Tomasz"]
[Black "Sukandar, Irine Kharisma"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2501"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,13,9,-9,0,-12,-5,-11,-16,-8,-4,-2,-14,-14,2,-11,-9,-37,0,-5,-11,-17,0,-46,0,0,0,0,0,0,0,0,0,0,-9,-18,-16,-33,-24,-75,0,-86,-26,-72,0,-206,-181,-259,-217,-182,-186,-207,-56,-958,-981,-1541,-1341,-1319,-480,-1452,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-29999]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. c3 Nf6 5. Qe2 Bg4 6. d4 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} cxd4 7. cxd4 d5 8. e5 {The position is equal.} Nd7 {aiming for ...Nxd4!} 9. Be3 e6 10. O-O {[#]} a6 $146 ({Predecessor:} 10... Be7 11. Nbd2 O-O 12. Bd3 Rc8 13. Rac1 Qb6 14. h3 Bh5 15. Rc2 Bg6 16. Bxg6 hxg6 {0-1 (105) Fressinet,L (2640)-Ni,H (2611) ICC INT 2004}) 11. Ba4 b5 12. Bd1 Be7 13. Nbd2 O-O 14. Bc2 Nb4 15. Bb1 Rc8 16. Nb3 f5 17. exf6 Nxf6 18. h3 Bh5 19. a3 Nc6 20. Nbd2 Qe8 21. Re1 Bd6 22. a4 Bb4 23. axb5 axb5 24. g4 (24. Ra6 $11 {keeps the balance.}) 24... Bg6 ({Black should try} 24... Nxg4 $1 $17 25. hxg4 Bxg4 26. Bxh7+ (26. Qd3 Qh5 $15) 26... Kh8) 25. Qxb5 (25. Bxg6 $11 Qxg6 26. Red1) 25... Ne4 (25... h5 $17 {...Bxb1 is the strong threat.} 26. g5 Ne4) 26. Qe2 Rb8 (26... Nxd2 $1 $17 27. Bxd2 Rxf3 $1 {[%mdl 512]} 28. Bxb4 Nxd4) 27. Ra2 $2 {[#]} (27. Bxe4 $11 Bxe4 28. Rec1 Bxd2 29. Nxd2) 27... Nxd2 $1 $19 28. Nxd2 Bxb1 29. Rxb1 e5 30. dxe5 Nxe5 $2 (30... d4 $19 31. Bxd4 {[%mdl 64] Decoy} Nxd4 32. Qc4+ Qf7) 31. Ra7 $2 {[%mdl 8192]} (31. f4 $15 Nc6 32. f5) 31... Bxd2 $1 32. Bxd2 Nf3+ {[%mdl 64] Discovered Attack} 33. Kf1 Qe4 (33... Nxd2+ $142 34. Qxd2 Qe4) 34. Re1 (34. Qxe4 $142 Nxd2+ 35. Kg2 Nxe4 36. f3) 34... Rbe8 $2 (34... Nxd2+ $19 35. Kg1 Nf3+ {[%mdl 64] Double Attack} 36. Kf1 Qf4) 35. Bc3 $1 $11 Nh2+ 36. Kg1 Nf3+ {[%mdl 64] Double Attack} 37. Kf1 {[#]} Nd2+ $1 $40 {[%mdl 640] Black is up to no good.} 38. Kg1 (38. Bxd2 Qh1#) 38... Nf3+ {[%mdl 64] Double Attack} 39. Kf1 Nh2+ 40. Kg1 Nf3+ {[%mdl 64] Double Attack} 41. Kf1 {[#]} Nd2+ $1 {[%mdl 576] Back Rank} 42. Qxd2 $2 {[%mdl 8192]} (42. Kg1 $11 Nf3+ {[%mdl 64] Double Attack}) (42. Bxd2 Qh1#) 42... Qh1# {[%mdl 32768] Accuracy: White = 65%, Black = 66%. . An unexpected result.} 1/2-1/2

[Event "12th Batavia Amsterdam 2020"]
[Site "Amsterdam"]
[Date "2020.03.01"]
[Round "9.4"]
[White "Feuerstack, Aljoscha"]
[Black "Zwirs, Nico"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2459"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.02.21"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,52,45,20,8,23,17,27,20,35,32,25,23,20,19,16,35,14,16,14,4,17,12,16,14,16,4,29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 g6 5. Nf3 Bg7 6. Na3 {[%cal Bb1a3,Ba3b5,Bb5d4][%mdl 32]} cxd4 7. Nb5 {[#] aiming for Nc7+. B06: Modern Defence.} Na6 8. Nbxd4 Nf6 9. Bb5+ {White has an edge.} Bd7 10. Bxa6 bxa6 11. O-O O-O 12. Re1 e6 {[#]} 13. Ne5 $146 ({Predecessor:} 13. h3 Qb7 14. c4 Rac8 15. Qb3 Qb6 16. Bf4 Nh5 17. Bh2 Bxd4 18. Nxd4 Qxd4 19. Rad1 Qxc4 20. Qxc4 Rxc4 21. Rxd7 {½-½ (32) Thompson,B (2308)-Carr,T (2347) ICCF email 2016}) 13... Rfd8 14. h3 Be8 15. Qe2 Qb7 16. Bg5 h6 17. Bf4 Rac8 18. Rad1 a5 19. Rd2 a4 {The position is equal.} 20. a3 a6 21. Bg3 Nh5 22. Bh2 Nf6 23. Qe3 Kh7 24. Qe2 Kg8 25. Qe3 Kh7 26. Qe2 Kg8 {A rather calm draw. Accuracy: White = 95%, Black = 95%.} 1/2-1/2

