[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.1"]
[White "Prazak, Daniel"]
[Black "Paseka, Matyas"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2064"]
[BlackElo "2082"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 9,120,27,12,5,17,18,20,12,24,20,29,12,19,14,22,32,23,1,7,1,1,1,1,4,20,8,21,0,33,20,73,76,143,143,143,139,133,131,130,120,125,97,102,91,97,87,97,93,104,104,104,104,104,104,104,104,104,104,104,104,105,105,105,105,105,105,102,72,156,168,172,150,170,151,302,158,151,114,114,114,143,143,142,108,511,127,500,27,31,27,22,30,52,27,27,27,27,27,27,0,0,0,0,0,0,0,0,0,0,0,0,27,166]} 1. e4 {[%emt 0:00:02]} c5 {[%emt 0:00:07]} 2. Nf3 {[%emt 0:00:09]} d6 {[%emt 0:00:05]} 3. Bb5+ {[%emt 0:00:14]} Nd7 {[%emt 0:00:08]} 4. a4 {[%emt 0:00:09]} Ngf6 {[%emt 0:00:08]} 5. Nc3 {[%emt 0:00:07]} a6 {[%emt 0:00:07]} 6. Be2 {[%emt 0:00:08] B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} b6 {[%emt 0:00:10]} 7. d4 {[%emt 0:00:08]} cxd4 {[%emt 0:00:12]} 8. Qxd4 {[%emt 0:00:08] The position is equal.} e5 {[%emt 0:00:12]} 9. Qe3 {[%emt 0:00:27]} Bb7 {[%emt 0:00:13]} 10. O-O {[%emt 0:03:00]} Be7 {[%emt 0:01:49]} 11. Nd2 {[%emt 0:02:54]} O-O {[%emt 0:03:15]} 12. Rd1 {[%emt 0:06:21]} Qc7 {[%emt 0:00:55]} 13. Nc4 {[%emt 0:07:58]} Rad8 {[%emt 0:05:25]} 14. b3 {[%emt 0:15:10]} Nc5 {[%emt 0:02:35][%cal Rb7e4]} 15. Bf3 {[%emt 0:02:42]} Ncxe4 {[%emt 0:13:15][%mdl 64] Remove Defender, Decoy} 16. Nxe4 {[%emt 0:13:48] [#]} (16. Bxe4 Nxe4 17. Nxe4 d5 $15) 16... Nxe4 $146 {[%emt 0:00:50]} ({Predecessor:} 16... Bxe4 17. Bxe4 d5 18. Bb2 Nxe4 19. Bxe5 Qc6 20. Qxb6 Qc8 21. Ne3 Nxf2 22. Rxd5 Rxd5 23. Nxd5 Bc5 24. Ne7+ {½-½ Valenzuela Gomez,F (2390)-Papadiamandis,E (2134) Sitges Sunway 7th 2020 (5)}) 17. Bxe4 {[%emt 0:01:15]} d5 {[%emt 0:00:08] [#]} 18. Bb2 $1 {[%emt 0:01:12]} dxe4 {[%emt 0:15:04]} (18... f6 19. Qxb6) 19. Bxe5 {[%emt 0:02:02]} Qc5 {[%emt 0:00:14]} (19... Rxd1+ $11 20. Rxd1 Rd8) 20. Bd4 $36 {[%emt 0:01:48][%mdl 2048] Keeping Black busy.} Rxd4 {[%emt 0:00:45]} 21. Qxd4 {[%emt 0:00:37]} ({Worse is} 21. Rxd4 Bg5 22. f4 exf3 $15) 21... Qxd4 {[%emt 0:00:08]} 22. Rxd4 {[%emt 0:00:09][%cal Oa1d1] Threatens to win with Rad1!} Bf6 {[%emt 0:00:06] [#]} 23. Rad1 {[%emt 0:01:46] Rd6 is the strong threat.} Bxd4 {[%emt 0:00:08]} 24. Rxd4 {[%emt 0:00:07][%mdl 4096] Endgame KRB-KRN} b5 {[%emt 0:18:40]} 25. axb5 {[%emt 0:00:46]} axb5 {[%emt 0:00:06]} 26. Nd6 {[%emt 0:00:08][%csl LRb5,LRb7,LRe4]} Ra8 {[%emt 0:00:43] ( -> ...Ra1+)} 27. h3 {[%emt 0:02:06] White is much more active.} (27. Nxb7 $2 {is a self mate.} Ra1+) 27... Bc6 {[%emt 0:02:44]} 28. Nxe4 {[%emt 0:00:33]} Bxe4 {[%emt 0:00:57]} 29. Rxe4 {[%emt 0:00:07] KR-KR} g6 {[%emt 0:00:22]} 30. Rb4 {[%emt 0:04:09]} Ra1+ {[%emt 0:00:38]} 31. Kh2 {[%emt 0:00:08]} Ra2 {[%emt 0:00:41]} 32. c3 {[%emt 0:00:27]} Rc2 {[%emt 0:10:26]} 33. Rxb5 {[%emt 0:00:22] aiming for c4.} Rxc3 {[%emt 0:00:06]} 34. g3 {[%emt 0:00:07]} Rc2 {[%emt 0:00:24]} 35. Kg2 {[%emt 0:00:11]} Rb2 {[%emt 0:00:05]} 36. h4 {[%emt 0:00:09]} h5 {[%emt 0:00:10]} 37. Kf3 {[%emt 0:00:39]} Kg7 {[%emt 0:00:21]} 38. Rb6 {[%emt 0:00:27]} Rb1 {[%emt 0:00:44]} ({Black should try} 38... f6) 39. b4 {[%emt 0:01:13]} Rb3+ {[%emt 0:00:27]} 40. Kf4 {[%emt 0:00:12]} Rb2 {[%emt 0:01:27]} 41. f3 {[%emt 0:30:50]} Rb1 $2 {[%emt 0:31:55]} (41... Kf8 $16 42. g4 Rh2) 42. Rb7 {[%emt 0:01:05]} ({White must play} 42. b5 $18) 42... Kf6 {[%emt 0:00:37]} 43. b5 {[%emt 0:01:09]} Rb4+ {[%emt 0:00:22]} 44. Ke3 {[%emt 0:00:08]} Rb3+ {[%emt 0:00:06]} 45. Ke4 {[%emt 0:02:26]} Ke6 {[%emt 0:06:26]} 46. b6 {[%emt 0:02:08]} Kf6 $2 {[%emt 0:05:03][%mdl 8192]} (46... Rb4+ $16 {is more resistant.} 47. Kd3 Kd5) 47. Rb8 $2 {[%emt 0:02:41]} (47. Kd5 $18 {is the precise move to win. Hoping for Kc5.} Rxf3 48. Kc4 Rxg3 49. Rc7) 47... Kg7 $2 {[%emt 0:00:27][%mdl 8192]} (47... Ke6 $16 {is a better chance.} 48. b7 Rb4+ 49. Kd3 Ke7) 48. b7 $2 {[%emt 0:00:55]} (48. Kd4 $18) 48... Rb1 {[%emt 0:01:02]} 49. Kd3 {[%emt 0:04:00]} Rb6 {[%emt 0:01:35]} 50. Kd4 {[%emt 0:03:49]} Rb1 {[%emt 0:02:29]} 51. g4 {[%emt 0:01:52]} hxg4 {[%emt 0:06:27]} 52. fxg4 {[%emt 0:00:09]} Rd1+ {[%emt 0:00:25]} 53. Kc3 {[%emt 0:00:47]} Rb1 {[%emt 0:00:06]} 54. h5 {[%emt 0:01:21]} gxh5 {[%emt 0:00:06]} 55. gxh5 {[%emt 0:00:05]} Kh7 {[%emt 0:00:56]} 56. Kd4 {[%emt 0:00:10]} Kg7 {[%emt 0:00:19]} 57. h6+ {[%emt 0:00:04]} Kh7 $1 {[%emt 0:00:04]} 58. Ke5 {[%emt 0:00:04]} Re1+ {[%emt 0:00:21]} 59. Kf6 {[%emt 0:00:08][%cal Ob8h8]} Rf1+ {[%emt 0:00:36]} 60. Ke7 {[%emt 0:00:05][%cal Ob8h8] Threatening mate with Rh8+!} Re1+ {[%emt 0:00:07] Blacks defense is rewarded with a draw.   Weighted Error Value: White=0.36/Black=0.31} 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.2"]
[White "Fizer, Marek"]
[Black "Seidl, Jan"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1929"]
[BlackElo "2025"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 9,73,-8,-29,-26,-20,-29,2,-8,0,-27,-13,-66,-71,-77,-86,-70,-50,-50,-47,-48,-29,-39,-37,-44,103,-69,-47,-70,-70,-81,-37,-78,-66,-81,-70,-100,-61,-87,-45,-100,-27,-92,52,52,212,201,200,173,174,166,170,73,330,300,825,718,1135,750,1150,531,520,529,410,195,29987,29988]} 1. e4 {[%emt 0:00:03]} c6 {[%emt 0:00:04]} 2. d4 {[%emt 0:00:08]} d5 {[%emt 0:00:02]} 3. f3 {[%emt 0:00:06]} e6 {[%emt 0:00:09]} 4. Nc3 {[%emt 0:00:11]} Bb4 {[%emt 0:00:17]} 5. Bf4 {[%emt 0:00:23]} Nf6 {[%emt 0:01:13]} 6. Qd3 $1 {[%emt 0:00:43] B12: Caro-Kann: Advance Variation.} O-O {[%emt 0:01:00]} 7. Nge2 {[%emt 0:01:02]} b6 {[%emt 0:04:12]} 8. Bg5 {[%emt 0:06:50] The position is equal.} Ba6 {[%emt 0:04:18]} 9. Qe3 {[%emt 0:01:26]} Be7 {[%emt 0:00:07] [#]} 10. e5 $146 {[%emt 0:03:24] [#]} (10. h4 $11) ({Predecessor:} 10. O-O-O Ng4 11. fxg4 Bxg5 12. Nf4 c5 13. g3 cxd4 14. Qxd4 Bxf1 15. Rhxf1 Bf6 16. Qa4 {1-0 Cioara,A (2385)-Engqvist,T (2355) Salongernas IM 5th 2005 (3)}) 10... Ng4 $1 $15 {[%emt 0:03:52][%mdl 64] Discovered Attack} 11. Qf4 {[%emt 0:09:16]} Bxg5 {[%emt 0:00:53]} 12. Qxg4 {[%emt 0:00:08]} c5 {[%emt 0:02:41]} 13. f4 {[%emt 0:04:49]} Be7 {[%emt 0:02:52]} 14. O-O-O $1 {[%emt 0:01:13]} Nc6 {[%emt 0:09:51] ...b5 is the strong threat.} 15. Kb1 {[%emt 0:05:12]} b5 {[%emt 0:09:09][%cal Bb6b5,Bb5b4][%mdl 32] White must now prevent ...b4.} 16. dxc5 $1 {[%emt 0:07:35]} Qa5 {[%emt 0:08:01]} (16... b4 $15 17. Ne4 Qa5 18. Nf6+ Kh8) 17. Ng3 $2 {[%emt 0:12:51]} (17. Nc1 $1 $16) 17... b4 $1 {[%emt 0:01:27]} 18. Nh5 {[%emt 0:06:51][%csl Gh5][%cal Rg4g7]} g6 $36 {[%emt 0:00:08][%mdl 2048] Black has some pressure.} 19. Ne2 {[%emt 0:01:53]} (19. Bxa6 bxc3 20. Qg3 Rfb8 $19) 19... Bc4 $1 {[%emt 0:06:30]} (19... Bxc5 20. Nf6+ Kg7 21. Ng3 $18) 20. Nc1 {[%emt 0:02:37] Hoping for Nf6+.} Qxc5 {[%emt 0:00:17]} 21. Nf6+ {[%emt 0:03:36]} Bxf6 {[%emt 0:04:19]} 22. exf6 {[%emt 0:00:11] Threatens to win with Qg5.} Nd4 {[%emt 0:03:54]} (22... Bxf1 23. Nb3 Qd6 24. Rhxf1 $14) 23. Bxc4 {[%emt 0:08:48]} Qxc4 {[%emt 0:03:35]} (23... h5 $2 24. Qg5 Nf5 25. Bd3 $18) 24. Rd2 {[%emt 0:01:34] [#]} Rac8 {[%emt 0:00:24]} (24... Rfc8 $1 $17 25. Rhd1 Nf5) 25. Qh3 {[%emt 0:08:50] [#]} (25. Nd3 $1 $11) 25... Kh8 {[%emt 0:02:57]} (25... Nxc2 26. Qh6 Na3+ 27. bxa3) ({Black should try} 25... Nf5 $1 $17 26. Nd3 Qd4) 26. Nd3 $14 {[%emt 0:02:57] Ne5 would be deadly.} Nc6 {[%emt 0:01:06]} (26... Nxc2 $2 27. Rc1 Na3+ 28. bxa3 $18) (26... Nf5 $1 $14) 27. Qh6 {[%emt 0:02:42][%csl Gf6][%cal Rh6g7]} Rg8 {[%emt 0:00:05] Prevents Qg7+} 28. h4 {[%emt 0:02:40] And now h5 would win.} Qe4 {[%emt 0:00:14]} 29. Qg5 {[%emt 0:03:25]} Rc7 {[%emt 0:04:14]} 30. Re1 {[%emt 0:02:13]} (30. h5 $18 {and White stays clearly on top.}) 30... Qc4 $2 {[%emt 0:01:11][%mdl 8192]} (30... Qd4 $16) 31. g4 $18 {[%emt 0:00:54]} a5 $2 {[%emt 0:02:24]} (31... Qd4 32. Rh2 Na5) 32. h5 {[%emt 0:00:55]} a4 {[%emt 0:00:04]} 33. hxg6 {[%emt 0:00:39]} fxg6 {[%emt 0:00:12]} 34. Ne5 {[%emt 0:00:26]} ({Weaker is} 34. Rxe6 Nd4 35. f7 (35. Re7 $2 Nf3 $19) 35... Nxe6 $16) (34. Rh1 $142 {Rdh2 would kill now.} Rgc8 35. Rdh2) 34... Nxe5 {[%emt 0:00:25]} 35. Qxe5 {[%emt 0:00:10] Threatening mate with f7+.} Rf7 {[%emt 0:00:31]} 36. Rh2 {[%emt 0:00:41]} (36. Qxe6 $142 Qc7 37. g5 (37. Qxd5 Rxf6 38. Qd4 Qxf4 $18)) 36... Re8 $2 {[%emt 0:00:34]} (36... Rgf8 $18 37. g5 (37. Qxe6 Rxf6 38. Qe7 R8f7 $11) 37... b3) 37. Reh1 {[%emt 0:00:28] Weighted Error Value: White=0.46/Black=0.63} 1-0

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.3"]
[White "Kubin, Tomas Daniel"]
[Black "Lang, Simon"]
[Result "0-1"]
[ECO "B84"]
[WhiteElo "1936"]
[BlackElo "1974"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 23,54,0,12,21,20,0,18,-31,-23,-65,-70,-69,0,0,54,40,50,-16,0,0,37,0,444,206,689,-72,-64,-1150,-1145,-1120,-1110,-1062,-499]} 1. e4 {[%emt 0:00:05]} c5 {[%emt 0:00:47]} 2. Nf3 {[%emt 0:00:15]} d6 {[%emt 0:00:47]} 3. d4 {[%emt 0:00:19]} cxd4 {[%emt 0:00:55]} 4. Nxd4 {[%emt 0:00:11]} Nf6 {[%emt 0:00:53]} 5. Nc3 {[%emt 0:00:20]} a6 {[%emt 0:01:23]} 6. Be2 {[%emt 0:00:27]} e6 {[%emt 0:01:28]} 7. a4 {[%emt 0:04:24]} Nc6 {[%emt 0:03:25]} 8. Be3 {[%emt 0:02:40]} Be7 {[%emt 0:02:01]} 9. O-O {[%emt 0:00:56]} O-O {[%emt 0:02:18]} 10. f4 {[%emt 0:01:24]} Qc7 {[%emt 0:02:39]} 11. Nb3 {[%emt 0:02:19]} b6 {[%emt 0:02:44]} 12. g4 {[%emt 0:05:30][%cal Bg2g4,Bg4g5][%mdl 32]} Re8 {[%emt 0:03:20]} 13. g5 {[%emt 0:07:17] B85: Sicilian Scheveningen: 6 Be2 a6, lines with early Be3.} Nd7 {[%emt 0:01:11]} 14. Qe1 {[%emt 0:04:54] [#]} Bb7 $146 {[%emt 0:09:23]} ({Predecessor:} 14... Bf8 15. Qh4 g6 16. f5 Nde5 17. Rf4 Nb4 18. Qf2 Nxc2 19. Bxb6 Qb8 20. Rf1 Bd7 {0-1 Bernard,B (2288)-Juptner,J (2241) CZE-chT2c 0405 2004 (3.1)}) 15. f5 {[%emt 0:11:37]} (15. Qf2 $11 {might be stronger.}) 15... exf5 $15 {[%emt 0:06:42] [#] ...Nb4 would be deadly.} 16. exf5 {[%emt 0:00:28]} (16. Nd5 Qd8 17. Qg3 (17. exf5 $2 Bxg5 18. Qg3 Bxe3+ 19. Nxe3 Nf6 $19) (17. Rxf5 g6 $17) 17... fxe4 $17) 16... Nb4 $1 {[%emt 0:08:13]} (16... Nce5 17. Qg3 $11 (17. Nd4 Nc4 $11)) 17. Nd4 {[%emt 0:04:44]} Bf8 {[%emt 0:05:23]} (17... Bf6 $15 18. gxf6 Rxe3) 18. Qg3 $36 {[%emt 0:04:30][%mdl 2048] White is pushing.} g6 {[%emt 0:05:18]} (18... Qc5 $11) 19. h4 {[%emt 0:07:49][%cal Bh2h4,Bh4h5][%mdl 32]} Ne5 {[%emt 0:10:08]} 20. fxg6 {[%emt 0:03:51]} (20. Rad1 $14) 20... hxg6 {[%emt 0:02:34]} (20... fxg6 {looks sharper.} 21. Rf6 Bg7 22. h5 Bxf6 23. gxf6 Qf7) 21. h5 {[%emt 0:02:08]} Re7 {[%emt 0:02:48]} 22. Rf4 {[%emt 0:08:15]} Nec6 $2 {[%emt 0:06:14][%mdl 8192]} (22... Rae8 $11 {and Black has nothing to worry.}) 23. Raf1 {[%emt 0:07:03]} (23. hxg6 $142 Nxd4 24. Bxd4) 23... Bg7 $2 {[%emt 0:04:59]} (23... Rae8 24. hxg6 Ne5 25. gxf7+ Rxf7 26. Rxf7 Nxf7 27. g6 $18) (23... Ne5 24. R1f2 (24. Qh2 Bg7 $16) 24... Bg7) 24. Nxc6 $2 {[%emt 0:02:38]} (24. hxg6 $18 {Intending Qh3 and mate.} Rxe3 25. Qh4 (25. gxf7+ Kf8 $18) 25... Rg3+ 26. Kh2 Rg2+ 27. Kh1) 24... Qxc6 $17 {[%emt 0:00:59]} (24... Rxe3 $2 25. Qxe3 Qxc6 26. Bf3 $18 (26. Rxb4 $2 Qg2#)) 25. Rxb4 $4 {[%emt 0:00:35][%mdl 8192] [#]} (25. Bd4 $15 Nd5 26. Bf3) 25... Rxe3 $1 $19 {[%emt 0:00:26][%mdl 576] Double Attack. Black is clearly winning.} 26. Qh2 {[%emt 0:06:19]} Qc5 {[%emt 0:01:05][%cal Re3g3]} ({And not} 26... Bxc3 27. hxg6 $19) 27. Qf2 {[%emt 0:04:42]} Rg3+ {An exciting game.   Weighted Error Value: White=1.02/Black=0.70} ({Less strong is} 27... Qxg5+ 28. Rg4 Qc5 29. hxg6 $14 (29. Qxf7+ Kh8 $11)) (27... Qxb4 $142 28. Qxf7+ Kh8) 0-1

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.4"]
[White "Janous, Marek"]
[Black "Werner, Hong Quan Dan"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2124"]
[BlackElo "2085"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 12,82,31,11,23,8,11,12,14,21,28,17,37,29,35,0,25,24,49,43,46,0,27,19,60,6,131,128,103,121,136,58,52,56,88,56,64,18,18,7,85,15,106,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 {[%emt 0:00:48]} c5 {[%emt 0:00:32]} 2. Nf3 {[%emt 0:00:15]} Nc6 {[%emt 0:00:15]} 3. Bb5 {[%emt 0:01:18]} g6 {[%emt 0:00:14]} 4. Bxc6 {[%emt 0:01:07]} dxc6 {[%emt 0:00:45]} 5. d3 {[%emt 0:00:07]} Bg7 {[%emt 0:00:14]} 6. h3 {[%emt 0:00:07]} Nf6 {[%emt 0:00:25]} 7. Nc3 {[%emt 0:00:54]} Nd7 {[%emt 0:00:37] B31: Sicilian: 2...Nc6 3 Bb5 g6.} 8. O-O {[%emt 0:00:59]} e5 {[%emt 0:00:24]} 9. Be3 {[%emt 0:00:26]} b6 $1 {[%emt 0:00:37][%mdl 4] now scores much better than the old 9...Qe7.} 10. Qd2 {[%emt 0:00:07]} h6 {[%emt 0:01:34]} 11. Nh2 {[%emt 0:00:14]} Nf8 {[%emt 0:00:46]} 12. f4 {[%emt 0:00:11]} exf4 {[%emt 0:00:22]} 13. Bxf4 {[%emt 0:00:06]} g5 {[%emt 0:01:31]} 14. Bg3 {[%emt 0:01:16]} Ng6 {[%emt 0:00:48]} 15. Rae1 {[%emt 0:02:30]} O-O {[%emt 0:04:45] [#]} 16. Kh1 $146 {[%emt 0:02:42]} (16. e5 $14) ({Predecessor:} 16. Qe2 Re8 17. Qf3 Re7 18. Ng4 Bxg4 19. Qxg4 c4 20. Rd1 cxd3 21. Rxd3 Qc8 22. Qf5 {½-½ Andreev,E (2420)-Alekseev,E (2623) BL2-West 1920 2019 (3.1)}) 16... Be6 {[%emt 0:04:25]} 17. Qe2 {[%emt 0:01:59]} Qd7 {[%emt 0:02:28]} 18. Qh5 {[%emt 0:10:03]} (18. e5 $1 $14) 18... Kh7 {[%emt 0:09:32] [#]} (18... Rae8 $11) 19. e5 $1 $16 {[%emt 0:05:51] Strongly threatening Ne4.} f5 {[%emt 0:05:49] Wards off Ne4. Threatens to win with ...f4.} 20. exf6 {[%emt 0:00:21]} Bxf6 {[%emt 0:00:24] [#]} 21. Rxf6 $1 {[%emt 0:24:39][%mdl 512]} Rxf6 $14 {[%emt 0:01:16]} 22. Ne4 $1 {[%emt 0:00:12][%csl LRf6,LRg5]} Raf8 {[%emt 0:14:05]} 23. Nxf6+ {[%emt 0:01:12]} (23. Nf3 {keeps more tension.} Kg7 24. Ne5 Qd5 25. Kh2) 23... Rxf6 {[%emt 0:00:05]} 24. Ng4 {[%emt 0:00:43]} (24. a4 $14) 24... Bxg4 $11 {[%emt 0:00:44]} 25. Qxg4 {[%emt 0:00:06]} Qf7 {[%emt 0:03:57]} (25... Qxg4 $11 {keeps the balance.} 26. hxg4 Kg7) 26. Qc4 {[%emt 0:01:53] White is more active.} ({White should try} 26. Kh2 $16) 26... Rf1+ {[%emt 0:04:59]} (26... Qxc4 $11 {remains equal.} 27. dxc4 Kg7) 27. Kh2 {[%emt 0:04:07]} (27. Rxf1 $16 Qxf1+ 28. Kh2) 27... Qxc4 {[%emt 0:03:53] The position is equal.} 28. dxc4 {[%emt 0:00:41]} Rxe1 {[%emt 0:00:22]} 29. Bxe1 {[%emt 0:00:07][%mdl 4096] Endgame KB-KN} Ne5 {[%emt 0:02:15]} 30. b3 {[%emt 0:01:48]} Kg6 {[%emt 0:01:09]} 31. Bc3 {[%emt 0:00:22]} Kf5 {[%emt 0:03:17]} 32. Kg3 {[%emt 0:02:20]} h5 {[%emt 0:01:08]} 33. Kf2 {[%emt 0:01:21]} b5 {[%emt 0:10:40]} 34. cxb5 {[%emt 0:00:56]} cxb5 {[%emt 0:00:04]} 35. Bd2 {[%emt 0:03:03]} Nc6 {[%emt 0:03:05]} 36. c3 {[%emt 0:04:43]} Nd8 {[%emt 0:01:46]} 37. Kf3 {[%emt 0:10:02] aiming for g4+.} Ne6 {[%emt 0:01:52]} 38. g4+ {[%emt 0:15:25]} hxg4+ {[%emt 0:00:11]} 39. hxg4+ {[%emt 0:00:01]} Ke5 {[%emt 0:00:10]} 40. Be1 {[%emt 0:02:29]} Kd5 {[%emt 0:01:19]} 41. Bd2 {[%emt 0:31:53]} a6 {[%emt 0:30:53] Weighted Error Value: White=0.18 (very precise) /Black=0.21 (precise)} 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.5"]
[White "Hladky, Tadeas"]
[Black "Dolensky, Filip"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "1973"]
[BlackElo "2108"]
[Annotator "TA"]
[PlyCount "173"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 10,173,0,0,64,50,58,30,31,5,1,4,33,0,33,27,32,27,35,27,56,49,32,30,40,40,56,61,67,35,36,35,39,32,41,22,20,20,22,-21,-13,-33,49,43,121,0,0,0,0,-86,-87,-93,-87,-93,-49,-75,-58,-70,-58,-75,0,-68,-35,-58,-20,-73,-77,-89,-89,-101,-58,-58,0,-108,-88,-85,-58,-162,-161,-152,-58,-76,-66,-66,-65,-65,-31,-109,-65,-65,-65,-65,0,-65,-65,-58,0,-58,0,-51,-37,-58,-34,-74,-73,-61,-35,-79,-64,-72,-72,-68,-64,-64,-64,-64,-57,-58,-57,-64,-58,-64,-57,-58,0,-74,-45,-71,-54,-81,-76,-83,-83,-132,-134,-138,-135,-209,-88,-101,-91,-91,-85,-85,-30,-55,-14,-14,-14,-14,-14,-14,-13,-13,-13,-13,-13,-13,-13,-14,-13,-13,-13,-13,-13,-12850]} 1. e4 {[%emt 0:00:03]} e6 {[%emt 0:02:01]} 2. d4 {[%emt 0:00:29][%cal Bd2d4,Bd4c5][%mdl 32]} d5 {[%emt 0:00:13]} 3. Nd2 {[%emt 0:01:16]} Be7 {[%emt 0:02:19]} 4. Ngf3 {[%emt 0:00:09]} Nf6 {[%emt 0:00:22]} 5. Bd3 {[%emt 0:00:11]} c5 {[%emt 0:00:48]} 6. dxc5 {[%emt 0:00:12]} Nc6 {[%emt 0:03:28] C03: French Tarrasch: Unusual Black 3rd moves.} (6... dxe4 $11 7. Nxe4 Nxe4 8. Bxe4 Qxd1+ 9. Kxd1 Bxc5) 7. O-O {[%emt 0:01:24]} O-O {[%emt 0:01:43]} 8. a3 {[%emt 0:06:01]} a5 {[%emt 0:03:53] White has an edge.} 9. exd5 {[%emt 0:05:45]} exd5 {[%emt 0:01:31]} 10. h3 {[%emt 0:00:38]} Bxc5 {[%emt 0:02:37] [#]} 11. Nb3 $146 {[%emt 0:01:39]} ({Predecessor:} 11. b3 Qd6 12. Bb2 Re8 13. Re1 Bxh3 14. gxh3 Qg3+ 15. Kh1 Qxh3+ 16. Kg1 Bxf2+ 17. Kxf2 Ng4+ 18. Kg1 Qg3+ 19. Kh1 Nf2# {0-1 Indriunas,M (1792)-Kalvaitis,S (2169) Plunge op-A 38th 2018 (3)}) 11... Bd6 {[%emt 0:11:35]} 12. Re1 {[%emt 0:03:27]} h6 {[%emt 0:03:41]} 13. Be3 {[%emt 0:02:07]} Re8 {[%emt 0:03:22]} 14. Nbd4 {[%emt 0:11:23]} Be6 {[%emt 0:05:47]} 15. Nxe6 {[%emt 0:06:23]} Rxe6 {[%emt 0:02:27]} 16. Nd4 {[%emt 0:03:23]} Re8 {[%emt 0:12:37]} 17. Nf5 {[%emt 0:11:26]} Be5 {[%emt 0:07:29]} 18. c3 {[%emt 0:00:51]} Ne7 {[%emt 0:05:51]} 19. Qf3 {[%emt 0:15:39][%cal Oe3h6] White has more active pieces.} Nxf5 {[%emt 0:03:17]} 20. Qxf5 {[%emt 0:02:18][%cal Oe3h6]} Qc7 {[%emt 0:02:21]} 21. Rad1 {[%emt 0:02:33]} Rad8 {[%emt 0:00:37]} 22. Bb5 {[%emt 0:10:22] This pair of bishops is nice.} Re6 {[%emt 0:01:48]} 23. a4 {[%emt 0:01:48]} Ne4 {[%emt 0:02:30]} 24. Qf3 {[%emt 0:04:15]} Rf6 {[%emt 0:03:46]} 25. Qe2 {[%emt 0:00:32]} Rg6 {[%emt 0:01:42]} (25... Bh2+ $15 26. Kh1 Bg3) 26. Bd3 $14 {[%emt 0:02:47]} f5 {[%emt 0:00:18]} ({Don't do} 26... Bh2+ 27. Kh1 Re8 28. Bb5 $16) (26... Re6 $14) 27. Bd4 {[%emt 0:01:12]} (27. Bb1 $16) 27... Bxd4 $11 {[%emt 0:00:53]} 28. cxd4 {[%emt 0:00:04]} Qf4 {[%emt 0:01:25]} 29. Bxe4 {[%emt 0:03:22]} (29. f3 $11 Ng5 30. Kh1) 29... fxe4 $17 {[%emt 0:00:58]} ({But not} 29... dxe4 $6 30. d5 $11) 30. Rc1 {[%emt 0:00:56]} Rf8 {[%emt 0:01:36]} 31. Rc3 {[%emt 0:01:13]} Rg5 {[%emt 0:02:00]} 32. Rf1 {[%emt 0:00:36]} Rf6 {[%emt 0:01:20]} 33. Kh1 {[%emt 0:00:29]} Qh4 {[%emt 0:01:07]} 34. Kh2 {[%emt 0:00:55]} Qf4+ {[%emt 0:00:50]} (34... Rgf5 $5 {[%cal Rf5f2]}) 35. Kh1 {[%emt 0:00:02]} Rfg6 {[%emt 0:00:36]} 36. Rg1 {[%emt 0:00:19]} Rf5 $40 {[%emt 0:00:33][%mdl 128] Black attacks.} 37. Rf1 {[%emt 0:00:57]} (37. f3 $1 $11 {remains equal.}) 37... Kh7 {[%emt 0:01:18]} 38. Rb3 {[%emt 0:00:35]} b6 {[%emt 0:00:25]} 39. Rc3 {[%emt 0:00:03]} Rgf6 {[%emt 0:00:43]} 40. Kg1 {[%emt 0:00:57]} Rg6 {[%emt 0:03:28]} (40... Qg5 $15) 41. Kh1 $1 {[%emt 0:30:59]} Qh4 {[%emt 0:30:22]} 42. Kh2 {[%emt 0:01:11]} Qf6 {[%emt 0:00:47]} 43. Qe3 {[%emt 0:00:00]} ({White must play} 43. Qd2 $1 $15) 43... Qd6+ $1 $19 {[%emt 0:00:00]} 44. Kh1 {[%emt 0:00:00] [#]} Rgf6 {[%emt 0:00:00]} (44... Qd7 $1 $17 45. f4 Qxa4) 45. Kg1 {[%emt 0:00:00]} Qb4 {[%emt 0:00:00]} 46. b3 {[%emt 0:00:00]} Rg6 {[%emt 0:00:00]} 47. Kh1 {[%emt 0:00:00]} Qe7 {[%emt 0:00:00]} 48. Qe2 {[%emt 0:00:00]} (48. f4 $15) 48... Qf6 {[%emt 0:00:00]} (48... Qh4 {feels hotter.} 49. Kh2 Qg5 50. f3 Qf4+) 49. Qe3 {[%emt 0:00:00]} Qh4 {[%emt 0:00:00][%cal Of5f3] Strongly threatening ...Rf3!} 50. Kh2 {[%emt 0:00:00]} Qf6 {[%emt 0:00:00]} 51. Kh1 {[%emt 0:00:00]} Qd6 {[%emt 0:00:00]} 52. Qe2 {[%emt 0:00:00]} Qb4 {[%emt 0:00:00]} 53. Qe3 {[%emt 0:00:00]} Rgf6 {[%emt 0:00:00]} 54. Kg1 $1 {[%emt 0:00:00]} b5 {[%emt 0:00:00]} 55. axb5 {[%emt 0:00:00]} Qxb5 {[%emt 0:00:00]} 56. Rc5 {[%emt 0:00:00]} Qd7 {[%emt 0:00:00][%cal Of5f3] ...Rf3! would be deadly.} 57. Rc3 {[%emt 0:00:00]} Rg5 {[%emt 0:00:00] White must now prevent ...Rf3.} 58. Kh2 {[%emt 0:00:00]} Qd6+ {[%emt 0:00:00]} 59. Kh1 {[%emt 0:00:00]} Rgf5 {[%emt 0:00:00]} 60. Kg1 {[%emt 0:00:00]} Qe6 {[%emt 0:00:00]} 61. Qe2 {[%emt 0:00:00]} Rg5 {[%emt 0:00:00]} 62. Kh2 {[%emt 0:00:00]} Qd6+ {[%emt 0:00:00]} 63. Kh1 {[%emt 0:00:00]} Rgf5 {[%emt 0:00:30]} 64. Kg1 $1 {[%emt 0:00:00]} Qb4 {[%emt 0:01:25][%csl LRc3,LRd4]} 65. Qe3 {[%emt 0:00:00]} Rf7 {[%emt 0:00:53]} 66. Rc5 {[%emt 0:00:00]} Qb7 {[%emt 0:01:49]} ({Black should play} 66... Qb6 $15) 67. Rc3 {[%emt 0:00:00]} (67. Rxa5 $11 Qc6 68. Qc1 Qxc1 69. Rxc1) 67... Qd7 {[%emt 0:00:12]} 68. Qe2 {[%emt 0:00:00]} Rg5 {[%emt 0:00:22]} 69. Kh2 {[%emt 0:00:00]} Qd6+ {[%emt 0:00:08]} 70. Kh1 {[%emt 0:00:00]} Qg6 {[%emt 0:00:30]} 71. Rg1 {[%emt 0:00:00]} (71. f3 $142) 71... Qf6 $17 {[%emt 0:00:08][%csl LRd4,LRf2]} 72. f3 {[%emt 0:00:00]} Qxd4 {[%emt 0:00:28]} 73. Re3 {[%emt 0:01:34] [#]} (73. Qc2 $17) 73... exf3 {[%emt 0:01:37]} (73... Rg3 $1 $19 {[%cal Of7f3] aiming for ...Rfxf3!} 74. Rd1 Qb6) 74. Rxf3 {[%emt 0:00:06]} Rxf3 {[%emt 0:00:23]} 75. Qxf3 $19 {[%emt 0:00:03][%mdl 4096] Endgame KQR-KQR} Qe4 {[%emt 0:00:14]} 76. Rd1 {[%emt 0:02:28]} Qxf3 {[%emt 0:02:23]} (76... Rf5 $17 77. Qd3 Qxd3 78. Rxd3 Kg6) 77. gxf3 $17 {[%emt 0:00:04] KR-KR} Rg3 {[%emt 0:04:21]} 78. Rxd5 {[%emt 0:00:08] The position is equal.} Rxf3 {[%emt 0:00:35]} 79. Kg2 {[%emt 0:00:38]} Rxb3 {[%emt 0:00:06]} 80. Rxa5 {[%emt 0:00:02]} Kg6 {[%emt 0:00:24]} 81. Rc5 {[%emt 0:00:15]} h5 {[%emt 0:00:38]} 82. h4 {[%emt 0:00:21]} Rd3 {[%emt 0:00:42]} 83. Rg5+ {[%emt 0:00:11]} Kh6 {[%emt 0:00:06]} 84. Ra5 {[%emt 0:00:04]} Rc3 {[%emt 0:00:18]} 85. Rb5 {[%emt 0:00:04]} g6 {[%emt 0:00:28]} 86. Rb7 {[%emt 0:00:20]} Rc4 {[%emt 0:00:32]} 87. Rb5 $2 {[%mdl 40960] Weighted Error Value: White=0.19 (very precise) /Black=0.23 (precise) . An unexpected result.} (87. Kh3 $11) 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.6"]
[White "Tesar, Jakub"]
[Black "Mametev, Artem"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1960"]
[BlackElo "2074"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 10,83,29,22,17,23,32,39,20,8,12,8,10,12,12,6,7,8,12,18,17,8,18,13,14,8,20,4,4,3,14,19,38,43,37,34,50,37,49,13,24,0,8,0,10,0,0,0,0,-29,-28,-59,16,-66,-64,-51,-56,-57,-48,-39,-13,-13,-13,-20,71,34,40,-24,62,56,59,0,0,0,0,0]} 1. e4 {[%emt 0:00:03]} c5 {[%emt 0:00:02]} 2. c3 {[%emt 0:00:07]} d5 {[%emt 0:00:03]} 3. exd5 {[%emt 0:00:07]} Qxd5 {[%emt 0:00:04]} 4. d4 {[%emt 0:00:10]} Nc6 {[%emt 0:00:02]} 5. Nf3 {[%emt 0:00:09]} Bf5 {[%emt 0:00:04]} 6. Be3 {[%emt 0:00:16]} cxd4 {[%emt 0:00:11] B22: Sicilian: 2 c3.} 7. Nxd4 {[%emt 0:00:07]} Nf6 {[%emt 0:00:18]} 8. Nxf5 {[%emt 0:00:25]} Qxf5 {[%emt 0:00:02] White is slightly better.} 9. Bd3 {[%emt 0:00:46]} Qd5 {[%emt 0:00:07] [#] aiming for ...0-0-0.} 10. O-O {[%emt 0:00:10][%cal Od1b3]} O-O-O {[%emt 0:00:06]} 11. Be2 {[%emt 0:00:44] Strongly threatening Qa4. This pair of bishops is nice.} Qxd1 {[%emt 0:00:06]} 12. Rxd1 {[%emt 0:00:04]} Rxd1+ {[%emt 0:00:03]} 13. Bxd1 {[%emt 0:00:07]} Nd5 {[%emt 0:00:12]} 14. Bc1 {[%emt 0:01:14]} e6 {[%emt 0:00:22]} 15. Be2 {[%emt 0:01:28]} Be7 {[%emt 0:02:09]} 16. g3 {[%emt 0:09:24]} Rd8 {[%emt 0:20:07]} 17. Nd2 {[%emt 0:14:52] [#]} f5 $146 {[%emt 0:10:44]} ({Predecessor:} 17... Bg5 18. f4 Be7 19. Nb3 g6 20. Kg2 h5 21. Bd2 Bd6 22. Rd1 Bc7 23. Na1 Bb6 {½-½ Kotainy,J (2413)-Wirig,A (2490) Neckar op-A 17th 2013 (7)}) 18. Nf1 {[%emt 0:16:36]} g5 {[%emt 0:04:19]} 19. Bd2 {[%emt 0:03:29]} e5 {[%emt 0:01:47]} 20. Rd1 {[%emt 0:05:13]} f4 {[%emt 0:12:51]} 21. Bc1 {[%emt 0:05:28]} Nf6 {[%emt 0:03:05]} 22. Rxd8+ {[%emt 0:02:09]} Kxd8 {[%emt 0:01:11]} 23. Nd2 {[%emt 0:06:54]} e4 {[%emt 0:04:26]} 24. Nb3 {[%emt 0:04:49]} Bd6 {[%emt 0:03:44]} 25. Kf1 {[%emt 0:09:28]} h6 {[%emt 0:02:02][%cal Bh7h6,Bh6h5,Bh5h4][%mdl 32]} 26. Bd2 {[%emt 0:04:20]} e3 {[%emt 0:02:37][%mdl 64] [#] Deflection} 27. fxe3 {[%emt 0:01:08]} (27. Be1 {simplifies} exf2 28. Kxf2 fxg3+ 29. hxg3 Ke7 30. Kg2) 27... fxg3 {[%emt 0:00:03]} 28. h3 {[%emt 0:00:32]} h5 {[%emt 0:06:00]} 29. Kg2 {[%emt 0:01:37]} h4 {[%emt 0:04:15]} 30. Bf3 {[%emt 0:01:55]} Kc7 {[%emt 0:00:43]} ({Black should try} 30... Ne5 $15 31. Be2 (31. Bxb7 Kc7 $15) 31... g4) 31. e4 {[%emt 0:02:18]} (31. Nd4 $11) 31... Bf4 $15 {[%emt 0:06:24]} 32. Bxf4+ {[%emt 0:00:12]} gxf4 {[%emt 0:00:01][%mdl 4096] Endgame KBN-KNN} 33. Nc5 $1 {[%emt 0:00:38]} Nd8 {[%emt 0:07:29]} 34. e5 {[%emt 0:00:33]} Nd7 {[%emt 0:00:43]} 35. Nd3 {[%emt 0:00:55]} Ne6 {[%emt 0:00:57]} 36. b4 $1 {[%emt 0:01:22] Repels Ndc5} Kd8 {[%emt 0:02:16]} (36... b5 $11) 37. Bxb7 {[%emt 0:00:30]} (37. Bd5 $5 {[%cal Rd5e6]} Nef8 38. e6 $16 (38. Bxb7 Ng6 $16) (38. Nxf4 b6 $14)) 37... Nb6 $1 {[%emt 0:00:48]} 38. Nb2 {[%emt 0:04:39]} (38. Kh1 $14) 38... Kc7 {[%emt 0:02:23]} (38... f3+ $1 $11 39. Bxf3 (39. Kxf3 Kc7 $17) 39... Nf4+ 40. Kh1 Nxh3) 39. Bf3 $14 {[%emt 0:00:19]} Ng5 {[%emt 0:02:19]} 40. c4 {[%emt 0:04:40]} (40. a4 $1 $14) 40... Nd7 $11 {[%emt 0:00:26]} 41. Nd3 {[%emt 0:30:23] Threatens to win with Bd5.} Nb6 {[%emt 0:31:26]} 42. Nb2 {[%emt 0:00:00] Weighted Error Value: White=0.14 (very precise) /Black=0.14 (very precise)} 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.7"]
[White "Tillmann, Stanislav"]
[Black "Simunek, Jakub Simon"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1907"]
[BlackElo "1970"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 9,87,-17,5,-1,33,-19,-22,-18,-4,-17,-12,-23,0,0,0,0,10,-17,-4,-22,7,20,11,16,39,-20,-25,-86,-35,-98,-95,-158,-131,-137,-144,-135,-118,-120,-5,-9,-9,-7,-18,-20,-26,-26,-20,-14,-27,-38,-3,-8,-7,-38,-45,-48,-16,-20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1]} 1. d4 {[%emt 0:00:03]} d5 {[%emt 0:00:15]} 2. Nc3 {[%emt 0:00:05]} c5 {[%emt 0:01:39]} 3. Bf4 {[%emt 0:02:07]} Nf6 {[%emt 0:01:40]} 4. e3 {[%emt 0:00:49]} a6 {[%emt 0:02:31]} 5. Nf3 {[%emt 0:01:13]} Nc6 {[%emt 0:04:17]} 6. Be2 {[%emt 0:03:28] D00: 1 d4 d5: Unusual lines.} Bf5 {[%emt 0:05:43]} 7. a3 {[%emt 0:04:58]} (7. dxc5 $14 e6 8. Na4) 7... e6 $11 {[%emt 0:03:12]} 8. Ne5 {[%emt 0:07:17] [#]} Bd6 $146 {[%emt 0:09:53]} ({Predecessor:} 8... Rc8 9. g4 cxd4 10. exd4 Be4 11. f3 Bg6 12. h4 h6 13. Nxg6 fxg6 14. Qd3 Kf7 {½-½ Jacobsen,H (1873)-Petersen,T (1986) FAI-chT 2021 2020 (10.3)}) 9. g4 {[%emt 0:08:00]} cxd4 {[%emt 0:19:30]} 10. exd4 {[%emt 0:07:02]} Be4 {[%emt 0:07:04]} 11. f3 {[%emt 0:00:52] [#] Nxc6 would be deadly.} Bg6 {[%emt 0:05:58]} 12. h4 {[%emt 0:00:23]} h6 {[%emt 0:02:00]} 13. Nxg6 {[%emt 0:03:09]} fxg6 {[%emt 0:00:05]} 14. Qd2 {[%emt 0:00:27]} Rf8 {[%emt 0:12:01][%cal Of6e4]} (14... Bxf4 $5 15. Qxf4 O-O $11) 15. Bxd6 {[%emt 0:14:48]} Qxd6 {[%emt 0:00:05]} 16. O-O-O {[%emt 0:00:18]} Nd7 {[%emt 0:03:26]} 17. Bd3 {[%emt 0:04:31]} (17. Qd3 $14) 17... O-O-O {[%emt 0:02:48]} 18. Qe3 {[%emt 0:05:41]} (18. Rhf1 $11) 18... Qf4 {[%emt 0:01:31]} ({Better is} 18... e5 $17 19. dxe5 Ndxe5) 19. Rhe1 {[%emt 0:02:58]} ({White should play} 19. Qxf4 $15 Rxf4 20. Ne2 Rxf3 21. Bxg6) 19... Nxd4 $17 {[%emt 0:01:15]} (19... Qxd4 20. Qxe6 Rf6 21. Qxd5 $16) 20. Bxg6 {[%emt 0:01:07]} (20. Bf5 $142 Qxe3+ 21. Rxe3) 20... Nxf3 {[%emt 0:01:44]} 21. Qxf4 {[%emt 0:00:19]} Rxf4 {[%emt 0:00:19]} 22. Rxe6 {[%emt 0:01:02]} Nf8 {[%emt 0:01:24] A dynamic duo of knights.} ({Don't do} 22... Rxg4 23. Bh5 (23. Rxd5 Rg1+ 24. Nd1 Nf6 $15) (23. Nxd5 Nd4 $14) 23... Rf4 24. Nxd5 $18) 23. Rb6 {[%emt 0:07:26]} Nxg6 {[%emt 0:10:23]} ({Stronger than} 23... Nxh4 24. Bd3 $15) (23... Kc7 $17 24. Rxd5 Rd4 25. Rxd8 Rxd8 26. Rxb7+ {[%mdl 64] Decoy} Kxb7 27. Be4+ Ka7 28. Bxf3 Ng6) 24. Rxg6 $11 {[%emt 0:01:06]} d4 {[%emt 0:00:05]} 25. Ne2 {[%emt 0:04:30]} Rf7 {[%emt 0:00:24]} 26. h5 {[%emt 0:02:44]} Ne5 {[%emt 0:01:58]} 27. Re6 {[%emt 0:00:14]} Nxg4 {[%emt 0:00:21]} 28. Rxd4 {[%emt 0:02:32]} Rf1+ {[%emt 0:02:06]} 29. Kd2 {[%emt 0:00:02]} Rxd4+ {[%emt 0:00:14]} 30. Nxd4 $15 {[%emt 0:00:07][%mdl 4096] Endgame KRN-KRN} Nf6 {[%emt 0:00:09]} 31. Re7 {[%emt 0:03:12]} Nxh5 {[%emt 0:00:32]} 32. Ne6 {[%emt 0:00:21]} g5 {[%emt 0:00:37] aiming for ...g4.} 33. Rh7 {[%emt 0:01:18] The position is equal.} Rf6 {[%emt 0:00:10]} (33... g4 $5 {[%cal Rg4g3]} 34. Rh8+ Kd7 35. Nc5+ Kd6 36. Rxh6+ (36. Nxb7+ Kd5 $17) 36... Kxc5 37. Rxh5+ Kd4 $15) 34. Nxg5 {[%emt 0:01:21]} hxg5 {[%emt 0:01:29]} 35. Rxh5 $11 {[%emt 0:00:08] KR-KR} Rf2+ {[%emt 0:00:23]} 36. Kd3 {[%emt 0:00:29]} Rg2 {[%emt 0:00:16]} 37. Rh7 {[%emt 0:00:33]} Kb8 {[%emt 0:00:45]} 38. Rg7 {[%emt 0:00:35]} Kc8 {[%emt 0:00:07]} 39. a4 {[%emt 0:00:48]} Rg4 {[%emt 0:00:55]} 40. a5 {[%emt 0:03:38]} Rb4 {[%emt 0:00:35]} 41. Kc3 {[%emt 0:31:03]} Rb5 {[%emt 0:30:07]} 42. b4 {[%emt 0:00:31]} Kb8 {[%emt 0:00:00]} 43. Kb3 {[%emt 0:00:00]} Rf5 {[%emt 0:00:00]} 44. c3 {[%emt 0:00:00] Weighted Error Value: White=0.18 (very precise) /Black=0.16 (very precise)} 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.8"]
[White "Davidek, Zdenek"]
[Black "Svoboda, Daniel"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "1957"]
[BlackElo "1748"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 22,96,12,0,0,0,0,0,0,-54,-63,-79,-31,-63,-11,-52,-45,-50,0,0,0,0,0,0,0,-17,-8,-14,9,8,0,0,0,-38,66,69,55,68,64,22,31,32,43,9,86,0,36,8,55,66,70,16,32,0,0,-16,31,10,12,-10,54,24,38,38,50,0,42,0,0,0,0,-69,-69,-100,-38,-86,-84]} 1. d4 {[%emt 0:00:03]} d5 {[%emt 0:00:11]} 2. Nf3 {[%emt 0:00:06]} Nf6 {[%emt 0:00:07]} 3. c4 {[%emt 0:00:06]} dxc4 {[%emt 0:00:17]} 4. e3 {[%emt 0:00:18]} e6 {[%emt 0:00:35]} 5. Bxc4 {[%emt 0:00:06]} c5 {[%emt 0:00:18]} 6. O-O {[%emt 0:00:28]} a6 {[%emt 0:00:33]} 7. a4 {[%emt 0:00:16]} cxd4 {[%emt 0:01:08]} 8. exd4 {[%emt 0:00:59]} Nc6 {[%emt 0:01:14]} 9. Nc3 {[%emt 0:00:26]} Be7 {[%emt 0:01:13]} 10. Re1 {[%emt 0:15:57]} O-O {[%emt 0:03:14]} 11. Bg5 {[%emt 0:09:55] 11.Bf4 is the modern continuation.} h6 {[%emt 0:00:36]} 12. Bh4 {[%emt 0:01:19]} Bd7 {[%emt 0:02:14] D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} 13. Qe2 {[%emt 0:03:56]} Nd5 {[%emt 0:06:05]} 14. Bxe7 {[%emt 0:00:52]} Ncxe7 {[%emt 0:01:38] [#] The position is equal.} 15. Ne4 $146 {[%emt 0:08:21]} (15. Nxd5 $11 Nxd5 16. Ne5) ({Predecessor:} 15. Nxd5 Nxd5 16. Bxd5 exd5 17. Qd3 Re8 18. Rxe8+ Bxe8 19. b3 Rc8 20. h3 b5 21. axb5 Bxb5 {0-1 Berner,R-Fischer,K Liga 2019 21539-K3-G3}) 15... Bc6 $15 {[%emt 0:08:21]} 16. Ne5 {[%emt 0:01:18]} Rc8 {[%emt 0:09:39]} ({Black should play} 16... Nb6 $17) 17. a5 {[%emt 0:16:38]} Nf5 {[%emt 0:14:25]} 18. Red1 {[%emt 0:04:09]} (18. Qg4 {keeps more tension.} Nxd4 19. Rad1 Nc2 20. Nxf7 Rxf7 21. Qxe6 Nxe1 22. Nd6) 18... Nf4 {[%emt 0:11:49][%csl LRd4,LRe2]} 19. Qg4 {[%emt 0:10:15]} Qh4 {[%emt 0:10:09]} (19... Bd5 $15 20. Qxf4 Bxc4) 20. Qxh4 $11 {[%emt 0:01:06]} Nxh4 {[%emt 0:00:12]} 21. Nxc6 {[%emt 0:00:02]} Rxc6 {[%emt 0:01:04]} 22. Bf1 {[%emt 0:00:23]} Nf5 {[%emt 0:02:30][%cal Bh4f5,Bf5d4,Bd4f3][%mdl 32]} 23. Ra3 {[%emt 0:02:47]} Rd8 {[%emt 0:03:04]} 24. g3 {[%emt 0:00:36]} Nxd4 {[%emt 0:09:07] ...Nde2+ is the strong threat.} 25. gxf4 {[%emt 0:01:02]} Nf3+ $1 {[%emt 0:00:22][%mdl 64] [#] Discovered Attack} 26. Rxf3 {[%emt 0:00:02]} Rxd1 {[%emt 0:00:06]} 27. Kg2 {[%emt 0:00:30]} Rb1 {[%emt 0:04:14]} (27... Rd4 $15 28. Rd3 Rxd3 29. Bxd3 f5) 28. Rb3 $14 {[%emt 0:00:56]} Ra1 $1 {[%emt 0:01:25]} 29. Rxb7 {[%emt 0:00:56] [#] Strongly threatening b4.} Rxa5 {[%emt 0:00:02]} 30. Bd3 {[%emt 0:00:26] Threatening mate with Rb8+.} f5 $1 {[%emt 0:01:04]} 31. Nc3 {[%emt 0:09:10]} Rac5 {[%emt 0:01:54]} 32. Ra7 {[%emt 0:01:01]} Ra5 {[%emt 0:01:53]} (32... Rd6 $11 {remains equal.} 33. Bf1 (33. Bxa6 Ra5 $15) 33... Rcc6) 33. Rb7 {[%emt 0:01:58]} (33. h4 $16) 33... Rac5 $1 {[%emt 0:00:06]} 34. Kf1 {[%emt 0:02:55]} Kh7 {[%emt 0:02:37]} (34... Rd6 $11 35. Ke2 g5) 35. Ke2 {[%emt 0:01:26]} Kg6 {[%emt 0:00:28]} 36. Rb4 {[%emt 0:01:57] White is much more active.} (36. Na4 $14 Rc1 37. b4) 36... Rd6 {[%emt 0:02:21]} 37. Rb7 {[%emt 0:04:57]} Kf6 {[%emt 0:00:39]} 38. Rb4 {[%emt 0:00:46][%cal Bb7b4,Bb4a4,Ba4a2,Ba2a6][%mdl 32]} Kf7 {[%emt 0:01:32]} (38... a5 $11 {feels stronger.} 39. Ra4 Rb6) 39. Ra4 {[%emt 0:00:13]} Rb6 {[%emt 0:00:40]} 40. Ra2 {[%emt 0:00:01] aiming for Na4.} Rd6 {[%emt 0:00:45]} (40... Rb4 $11) 41. Bxa6 {[%emt 0:06:12]} Rd4 {[%emt 0:00:54]} 42. Ke3 {[%emt 0:01:01]} Rb4 {[%emt 0:01:26]} 43. Bd3 {[%emt 0:00:21]} (43. h4 $14) 43... Kf6 {[%emt 0:04:31]} 44. Ra6 {[%emt 0:03:36]} g5 {[%emt 0:01:22]} 45. fxg5+ {[%emt 0:02:10]} hxg5 {[%emt 0:00:51]} 46. Ra1 {[%emt 0:00:39]} (46. Nd1 $11) 46... Rxb2 $15 {[%emt 0:04:43]} 47. Ra3 {[%emt 0:02:03]} Rc7 {[%emt 0:05:14]} (47... g4 $17 {Hoping for ...Re5+.} 48. Be2 Rc8) 48. Kf3 {[%emt 0:01:14]} (48. Ne2 $15 {might be stronger.}) 48... Rh7 {[%emt 0:02:48] Weighted Error Value: White=0.24 (precise) /Black=0.20 (precise)} 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.9"]
[White "Vilimek, Vit"]
[Black "Hozda, Max"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2018"]
[BlackElo "2067"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 16,43,19,-52,-46,-37,-67,-94,-100,-120,-118,-142,-118,-178,0,0,0,0,0,0,0,0,-6,-39,-5,-27,1789,1759,1783,1453]} 1. e4 {[%emt 0:00:03]} d5 {[%emt 0:00:57]} 2. exd5 {[%emt 0:00:02]} Qxd5 {[%emt 0:00:06]} 3. Nc3 {[%emt 0:00:01]} Qa5 {[%emt 0:00:12]} 4. d4 {[%emt 0:00:01]} Nf6 {[%emt 0:00:14]} 5. Bc4 {[%emt 0:00:09]} c6 {[%emt 0:00:21]} 6. Nf3 {[%emt 0:00:06]} Bf5 {[%emt 0:00:31]} 7. O-O {[%emt 0:00:07]} Nbd7 {[%emt 0:02:59]} 8. Re1 {[%emt 0:00:23]} e6 {[%emt 0:06:28]} 9. Ne5 {[%emt 0:08:43]} (9. a3 $1 $11) 9... Nxe5 $15 {[%emt 0:19:05] B01: Scandinavian Defence.} 10. Rxe5 {[%emt 0:05:34]} Qb4 {[%emt 0:01:34]} 11. Qe2 {[%emt 0:17:21] [#]} O-O-O $1 {[%emt 0:01:23] Black is better.} 12. a3 {[%emt 0:10:25]} Qb6 {[%emt 0:01:07] [#]} 13. Be3 $146 {[%emt 0:05:23][%cal Od4d5]} ({Predecessor:} 13. Rxf5 exf5 14. Bxf7 Bd6 15. Qc4 Rhf8 16. Be6+ Kb8 17. Bxf5 Qa5 18. Qd3 g6 19. Bh3 {½-½ Stefansson,H (2470)-Westerinen,H (2420) Gausdal Int 1991 (9)}) 13... Ng4 {[%emt 0:27:50]} 14. b4 {[%emt 0:15:06]} (14. Na4 $2 Qc7 15. Bf4 Nxe5 16. Bxe5 Bd6 $19) (14. Rxf5 $17 exf5 15. Rb1) 14... Rxd4 $2 {[%emt 0:21:10]} (14... Qc7 $19 {...f6 would be deadly.} 15. Bf4 Nxe5) 15. Bxd4 $11 {[%emt 0:11:11]} Qxd4 {[%emt 0:00:08]} 16. Rxf5 {[%emt 0:02:12]} exf5 {[%emt 0:02:29]} (16... Qxc3 $2 17. Rd1 (17. Rxf7 $2 Qxa1+ 18. Qf1 Qe5 $19) 17... Bxb4 18. Rxf7 $18) 17. Qe8+ {[%emt 0:10:15]} Kc7 {[%emt 0:00:29]} 18. Qxf7+ {[%emt 0:01:27]} (18. Bxf7 Qxf2+ 19. Kh1 Qf4) 18... Qd7 {[%emt 0:02:10]} ({Resist} 18... Kb8 19. Qe8+ (19. Qxf5 $2 {perishes.} Bd6 $19) 19... Kc7 20. Rd1 Qxf2+ 21. Kh1 $14) 19. Re1 {[%emt 0:08:23][%cal Ba1e1,Be1e8,Be8e7][%mdl 32]} g6 {[%emt 0:01:59]} 20. Re8 {[%emt 0:02:46]} Bg7 {[%emt 0:00:10][%mdl 8192] [#] Black is weak on the light squares} (20... Qxf7 $11 21. Bxf7 Bg7 22. Rxh8 Bxh8) 21. Re7 $18 {[%emt 0:00:06]} Rd8 {[%emt 0:01:30]} 22. Qxg7 {[%emt 0:00:17] What a bad dream for Black.   Weighted Error Value: White=0.25 (precise) /Black=0.32} ({Weaker is} 22. Rxd7+ Rxd7 23. Qe6 Bxc3 $16) 1-0

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.10"]
[White "Pelc, Adam"]
[Black "Mohapl, Tomas"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "1871"]
[BlackElo "1946"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 17,66,0,4,-8,0,-7,-13,-10,18,8,14,15,0,0,26,0,78,67,227,204,216,197,189,170,174,185,177,169,183,185,302,295,460,322,1966,1870,1881,1864,1762,1702,29984,29985,29985,29986,29985,29986,29986,1002,29990,29991,29994]} 1. e4 {[%emt 0:00:13]} c5 {[%emt 0:00:05]} 2. Nc3 {[%emt 0:00:31]} Nc6 {[%emt 0:00:27]} 3. g3 {[%emt 0:00:54]} g6 {[%emt 0:02:25]} 4. Bg2 {[%emt 0:01:24]} Bg7 {[%emt 0:00:45]} 5. Nge2 {[%emt 0:04:02]} Nf6 {[%emt 0:03:36]} 6. d3 {[%emt 0:02:34]} d6 {[%emt 0:01:17]} 7. O-O {[%emt 0:00:51]} O-O {[%emt 0:00:40]} 8. h3 {[%emt 0:04:14]} Rb8 {[%emt 0:03:25] 8...Rb8 is better than 8...Bd7.} 9. f4 {[%emt 0:01:34]} Bd7 {[%emt 0:12:18] [#]} 10. Qe1 $146 {[%emt 0:11:15] B25: Closed Sicilian: 3 g3, lines without early Be3.} ({Predecessor:} 10. Be3 b5 11. a3 a5 12. a4 b4 13. Nb5 Ne8 14. Rb1 Nc7 15. c4 Nxb5 16. axb5 Nd4 17. Nxd4 cxd4 18. Bd2 e5 19. f5 {0-1 Demchenko,A (2679)-Jones,G (2682) Wch Blitz St Petersburg 2018 (13)}) 10... b5 {[%emt 0:08:00]} 11. Nd1 {[%emt 0:01:26][%cal Bc3d1,Bd1e3,Be3g4,Bg4h6,Bh6f7,Bf7g5][%mdl 32]} Ne8 {[%emt 0:13:30]} 12. Ne3 {[%emt 0:04:13] The position is equal.} Nd4 {[%emt 0:10:08]} 13. c3 {[%emt 0:04:39]} Nxe2+ {[%emt 0:00:58]} 14. Qxe2 {[%emt 0:00:05]} b4 {[%emt 0:01:02]} 15. Bd2 {[%emt 0:06:08]} e6 {[%emt 0:11:03]} 16. f5 {[%emt 0:21:45]} Bb5 {[%emt 0:02:38]} (16... bxc3 $11 {remains equal.} 17. Bxc3 Bxc3 18. bxc3 Qg5) 17. Ng4 {[%emt 0:07:26]} (17. fxe6 {simplifies} fxe6 18. Rxf8+ Bxf8 19. Ng4) 17... h5 $2 {[%emt 0:02:20] Loses the game.} (17... exf5 $14 18. exf5 Kh8) 18. Nh6+ $18 {[%emt 0:00:49]} Kh7 {[%emt 0:01:49]} 19. fxg6+ {[%emt 0:00:11]} fxg6 {[%emt 0:00:16]} 20. Nf7 {[%emt 0:01:14]} Qe7 {[%emt 0:01:35]} 21. Ng5+ {[%emt 0:01:16]} Kg8 {[%emt 0:00:25]} 22. Rxf8+ {[%emt 0:00:45]} ({Much less strong is} 22. cxb4 $6 Nc7 $16) 22... Bxf8 {[%emt 0:00:42]} 23. Rf1 {[%emt 0:00:37] aiming for Rf7.} (23. cxb4 cxb4 24. Rf1 Nf6 $16) 23... Bd7 {[%emt 0:06:46]} (23... bxc3 $142 24. bxc3 Ng7) 24. e5 {[%emt 0:02:28][%cal Be4e5,Be5f6,Bf6f7][%mdl 32] Hoping for Be4.} ({But not} 24. Rf7 Qxf7 25. Nxf7 bxc3 26. Bxc3 Kxf7) 24... d5 {[%emt 0:02:58] Inhibits Be4.} (24... bxc3 $142 25. bxc3 dxe5) 25. Rf7 {[%emt 0:00:41]} Qd8 $2 {[%emt 0:00:01] [#]} (25... Qxf7 26. Nxf7 bxc3 27. bxc3 Rb1+ 28. Kh2 Kxf7) 26. Rxf8+ $1 {[%emt 0:00:17][%mdl 512]} Kxf8 {[%emt 0:00:24]} 27. Qf2+ {[%emt 0:00:48]} Nf6 {[%emt 0:00:06]} 28. exf6 {[%emt 0:00:03] Intending Bf4 and mate.} bxc3 {[%emt 0:01:29] Black is weak on the dark squares} 29. Qxc5+ {[%emt 0:01:17]} Kg8 {[%emt 0:00:40]} 30. f7+ {[%emt 0:05:06]} Kg7 {[%emt 0:00:01]} 31. Bxc3+ {[%emt 0:00:11]} Kh6 {[%emt 0:00:01] [#]} 32. Qe3 {[%emt 0:00:17]} Qb6 {[%emt 0:01:36]} 33. Bd4 {[%emt 0:00:09][%mdl 64] Skewer} (33. Nxe6+ $2 {too greedy.} Qxe3+ 34. Kh2 Qxe6 $19) 33... Qd6 {[%emt 0:00:57]} 34. Ne4+ {[%emt 0:00:15] Artfully played by Pelc.   Weighted Error Value: White=0.11 (very precise) /Black=0.89} 1-0

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.11"]
[White "Zezula, Jakub"]
[Black "Sigut, Ondrej"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "1963"]
[BlackElo "1804"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 28,65,60,51,104,104,101,102,100,99,186,205,204,201,202,208,198,193,193,190,465,384,278,116,117,62,65,45,87,0,0,0,1440,1411,1091,691,5406,5306,2069,2005]} 1. e4 {[%emt 0:00:02]} e6 {[%emt 0:00:04]} 2. d4 {[%emt 0:00:08]} d5 {[%emt 0:00:05]} 3. Nd2 {[%emt 0:00:04]} c5 {[%emt 0:00:10]} 4. exd5 {[%emt 0:00:10]} Qxd5 {[%emt 0:00:06]} 5. Ngf3 {[%emt 0:00:07][%cal Bg1f3,Bf3d4,Bd4f5][%mdl 32]} cxd4 {[%emt 0:00:14]} 6. Bc4 {[%emt 0:00:06]} Qd6 {[%emt 0:00:07]} 7. O-O {[%emt 0:00:08]} Nc6 {[%emt 0:00:13]} 8. Nb3 {[%emt 0:00:19]} Nf6 {[%emt 0:00:15]} 9. Nbxd4 {[%emt 0:00:06]} Nxd4 {[%emt 0:00:11]} 10. Nxd4 {[%emt 0:00:03]} a6 {[%emt 0:00:08]} 11. Bb3 {[%emt 0:00:26]} Qc7 {[%emt 0:00:38]} 12. Re1 {[%emt 0:00:26]} Bd6 {[%emt 0:01:25]} 13. Nf5 {[%emt 0:01:17]} Bxh2+ {[%emt 0:11:24]} 14. Kh1 {[%emt 0:00:02]} O-O {[%emt 0:02:55]} 15. Nxg7 $1 {[%emt 0:00:05][%cal Od1d4] aiming for Qd4!} Kxg7 {[%emt 0:25:22] C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5.} (15... Rd8 $14 16. Qf3 Kxg7 17. Bh6+ Kg6) 16. Qd4 $1 $16 {[%emt 0:00:10][%cal Oc1h6]} e5 {[%emt 0:24:33]} (16... h6 $2 17. Bxh6+ (17. Qh4 Rh8 $16) 17... Kg6 18. Bxf8 $18) 17. Qh4 {[%emt 0:00:28][%mdl 1024] White has strong compensation.} Ng4 {[%emt 0:02:43] Prevents Bh6+. ...Qd8 is the strong threat. White is better.} 18. f3 $1 {[%emt 0:05:40]} Qd8 {[%emt 0:04:05] [#]} (18... Qd6 $16) 19. Bg5 $1 $18 {[%emt 0:17:56]} f6 {[%emt 0:04:33] [#]} 20. Bc1 {[%emt 0:21:01]} ({Don't do} 20. fxg4 $6 fxg5 21. Qxh2 Rf4 $16) 20... Bf4 {[%emt 0:07:18]} (20... f5 $2 21. Bg5 $18) 21. Bxf4 {[%emt 0:00:50]} ({Worse is} 21. fxg4 Bxc1 22. Raxc1 Qd4 $15) 21... exf4 {[%emt 0:01:34]} 22. Rad1 {[%emt 0:01:34] [#]} Qc7 $146 {[%emt 0:00:43] Hoping for ...Ne5.} ({Predecessor:} 22... Nf2+ 23. Qxf2 Qa5 24. Rd5 Qc7 25. Rc5 Qd6 26. Rh5 Kh8 27. Qh4 Qc7 28. c3 b5 {1-0 Maiko,J (2189)-Kostiukova,L UKR-ch U18 Girls 2001}) 23. fxg4 {[%emt 0:00:35] Black must now prevent g5.} h6 {[%emt 0:01:00] Black is weak on the light squares} (23... Kh8 24. Re4 Qg7) 24. Rd2 {[%emt 0:03:08] Threatens to win with Rde2.} b6 {[%emt 0:02:17]} 25. Rde2 {[%emt 0:03:34]} (25. Qh5 $18) 25... Ra7 $16 {[%emt 0:00:25]} 26. Re8 {[%emt 0:06:35]} (26. Bd5 $16 Qc5 27. Qh5) 26... Qc5 $14 {[%emt 0:02:22]} 27. c3 {[%emt 0:08:22]} Rc7 {[%emt 0:02:48]} 28. Qh3 {[%emt 0:04:36] White is more active.} ({White should play} 28. R1e4 $16) 28... Rxe8 $1 $11 {[%emt 0:02:50]} 29. Rxe8 $40 {[%emt 0:00:14][%mdl 128] Black needs to defend precisely.} Rf7 $2 {[%emt 0:01:14][%mdl 8192]} 30. Bxf7 $18 {[%emt 0:01:11] White is clearly winning.} Kxf7 {[%emt 0:00:03]} 31. Rh8 {[%emt 0:01:36]} Qe3 {[%emt 0:00:55]} 32. Qh5+ {[%emt 0:00:33]} Ke7 {[%emt 0:00:25]} 33. Re8+ {[%emt 0:00:07][%mdl 64] Skewer.   Weighted Error Value: White=0.62/Black=0.46} ({And not} 33. Rxc8 Qe1+ 34. Kh2 Qg3+ 35. Kh1 Qe1+ 36. Kh2 Qg3+ 37. Kh1 Qe1+ $11) 1-0

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.14"]
[Round "5.12"]
[White "Slaby, Matej"]
[Black "Mrazek, Adam"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1932"]
[BlackElo "1745"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 9,81,0,0,-9,1,-10,-8,-22,-19,-17,0,-36,-39,-32,-10,-14,-6,-11,0,0,18,21,26,18,38,0,0,0,0,0,38,-33,0,-29,-28,-46,-54,-57,-46,-69,-56,-69,-7,-45,0,0,74,50,62,0,157,144,146,93,92,91,92,85,743,41,32,26,52,57,60,73,96,106,491,502,1562,1501,1183,1134]} 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. h3 O-O 5. e3 d6 6. Bh2 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} b6 7. Bd3 Bb7 8. Nbd2 {The position is equal.} Nbd7 {[%cal Oe7e5]} 9. O-O Re8 10. e4 e5 11. dxe5 dxe5 12. b4 {[#]} Qe7 $146 ({Predecessor:} 12... Nh5 13. Re1 Qe7 14. c3 a5 15. a3 Nf4 16. Bf1 Red8 17. Qc2 h5 18. Nc4 Qf6 {0-1 Golubov,S (2482)-Mamedyarov,S (2817) Wch Blitz St Petersburg 2018 (2)}) 13. Rb1 c5 14. a3 c4 {[%mdl 64] Deflection} 15. Bxc4 Nxe4 16. Nxe4 Bxe4 17. Re1 (17. Qe2 $5 {[%cal Re2e4]} Bb7 18. Rfd1 $11) 17... Bb7 18. Bd5 Bxd5 19. Qxd5 Rac8 20. Qa2 (20. Rbd1 $14 Rc7 21. Bg3) 20... Kh8 21. Re2 f6 22. c4 Nf8 23. Rd1 Bh6 24. Rde1 {[%cal Rf3e5]} Qf7 $1 25. Re4 b5 (25... Red8 $15) 26. g4 {[%cal Og4g5]} (26. Rh4 $2 Bg7 27. Qc2 bxc4 $19) (26. Bxe5 $5 fxe5 27. Nxe5 $11) 26... bxc4 {Strongly threatening ...Ne6.} 27. g5 $1 Bg7 (27... Bxg5 $11 28. Nxg5 fxg5) 28. gxf6 $16 Bxf6 29. Bxe5 (29. Nxe5 $14 Bxe5 30. Bxe5+ Kg8 31. Qc2) 29... Bxe5 $2 (29... Nd7 $1 $11) 30. Nxe5 Qf5 31. Qe2 ({White should try} 31. Rxc4 h5 32. Rxc8 Rxc8 33. Qf7) 31... Kg7 {...c3 would be deadly.} 32. Nxc4 {[%mdl 64] Discovered Attack} (32. Rxc4 $2 {perishes.} Qxe5 33. Qxe5+ Rxe5 34. Rxe5 Rxc4 $19) 32... Rxe4 33. Qxe4 Qxh3 $2 {[%mdl 8192]} (33... Qxe4 $16 34. Rxe4 Kf6) 34. Re3 $2 (34. Nd6 $18) 34... Qd7 $14 35. Rd3 Qe6 {Black is weak on the dark squares} 36. Qd4+ Kg8 37. Ne5 Rc1+ {[#]} 38. Kg2 $1 Re1 $2 {[%mdl 8192] [#]} (38... Qe7 $16) 39. Ng4 $1 $18 {[%cal Rg4h6] Active counter play! White is clearly winning.} Qe4+ (39... g5 $142 40. Rf3 Nd7 41. Qxd7 {[%mdl 64] Remove Defender, Decoy} Qxd7 42. Nf6+ Kg7 43. Nxd7 Re7) 40. Qxe4 Rxe4 41. Nf6+ {Weighted Error Value: White=0.29 (precise) /Black=0.42} 1-0

