[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.1"]
[White "Janous, Marek"]
[Black "Zezula, Jakub"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2124"]
[BlackElo "1963"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 17,123,0,0,-11,0,11,20,24,74,81,74,77,80,87,87,68,86,77,44,42,66,73,80,21,15,6,9,5,5,8,9,9,18,8,8,14,41,27,46,12,14,19,37,30,116,75,110,53,64,29,26,11,8,0,81,62,81,76,316,72,56,25,150,145,431,412,501,501,403,100,107,107,107,107,107,107,137,0,0,0,582,422,1131,819,602,0,0,0,0,0,0,0,0,0,0,0,0,0,12848,12847,27999,27999,27999,27999,27999,27999,27999,27999]} 1. e4 {[%emt 0:00:07]} e5 {[%emt 0:00:09]} 2. Nf3 {[%emt 0:00:07]} Nc6 {[%emt 0:00:07]} 3. Nc3 {[%emt 0:00:38]} Nf6 {[%emt 0:00:43]} 4. d4 {[%emt 0:00:17]} exd4 {[%emt 0:01:03]} 5. Nxd4 {[%emt 0:00:24]} Bb4 {[%emt 0:01:09]} 6. Nxc6 {[%emt 0:00:20]} bxc6 {[%emt 0:00:29]} 7. Bd3 {[%emt 0:00:08]} d5 {[%emt 0:01:31]} 8. exd5 {[%emt 0:00:11]} cxd5 {[%emt 0:02:58]} 9. O-O {[%emt 0:00:08]} O-O {[%emt 0:02:08]} 10. h3 {[%emt 0:00:13] Prevents Bg4. C47: Scotch Four Knights and Four Knights with 4 g3.} h6 {[%emt 0:09:27]} 11. Qf3 {[%emt 0:00:34]} Bd6 {[%emt 0:02:00]} 12. Nb5 {[%emt 0:05:25] [#] The position is equal.} (12. Nxd5 $2 Nxd5 13. Qe4 (13. Qxd5 $2 Bh2+ {[%mdl 64] Discovered Attack} 14. Kxh2 Qxd5 $19) 13... g6 14. Bxh6 (14. Qxd5 $2 Bh2+ {[%mdl 64] Discovered Attack} 15. Kxh2 Qxd5 $19) 14... Re8 $19) 12... Ba6 $146 {[%emt 0:09:40]} (12... Bc5 $11) ({Predecessor:} 12... Bc5) 13. Nxd6 $16 {[%emt 0:06:17]} Qxd6 {[%emt 0:01:01]} 14. Bf4 {[%emt 0:00:54]} Qc6 {[%emt 0:07:06]} 15. Bxa6 {[%emt 0:02:48]} Qxa6 {[%emt 0:02:40]} 16. Bxc7 {[%emt 0:01:04]} Rac8 {[%emt 0:01:21]} 17. Be5 {[%emt 0:00:31]} Rxc2 {[%emt 0:05:27]} 18. Qd1 {[%emt 0:09:05]} (18. Rad1 {feels hotter.} Ne4 19. Qg4 f6 20. Bd4) 18... Rfc8 {[%emt 0:15:38]} 19. Bc3 {[%emt 0:02:05]} Qe2 {[%emt 0:00:44] [#]} 20. Qxe2 {[%emt 0:00:06]} ({White should play} 20. Qd4 $1 $16) 20... Rxe2 $11 {[%emt 0:00:06]} 21. Rfe1 {[%emt 0:03:28]} Rxe1+ {[%emt 0:03:17]} 22. Rxe1 {[%emt 0:00:35][%mdl 4096] Endgame KRB-KRN} Ne4 $1 {[%emt 0:00:35]} 23. Bd4 {[%emt 0:01:20]} a6 {[%emt 0:03:30]} 24. f3 {[%emt 0:05:21]} Ng3 {[%emt 0:05:53]} 25. Be5 {[%emt 0:00:53]} Nf5 26. g4 {[%emt 0:00:41]} Nh4 {[%emt 0:03:09]} (26... f6 $5 27. Bxf6 (27. gxf5 fxe5 28. Rxe5 d4 $11) 27... gxf6 28. gxf5 Rc2 $16) 27. Kf2 g5 {[%emt 0:01:32]} 28. Re2 {[%emt 0:08:05]} Ng6 29. Bg3 {[%emt 0:02:29]} Kg7 {[%emt 0:02:22]} 30. Ke3 {[%emt 0:03:31]} Nf8 {[%emt 0:11:50]} (30... Rc4 $11) 31. Kd4 {[%emt 0:08:37]} Rd8 {[%emt 0:02:14]} 32. Be5+ {[%emt 0:03:35]} (32. Kc5 $16) 32... f6 $14 {[%emt 0:03:26]} 33. Bg3 {[%emt 0:00:21]} (33. Bc7 $5 Rd7 $8 34. Bg3 $14) 33... Kf7 {[%emt 0:00:07] Repels Re7+} 34. Rc2 {[%emt 0:01:01]} Ne6+ {[%emt 0:00:26]} 35. Kd3 {[%emt 0:00:16]} Rd7 {[%emt 0:02:22]} (35... h5 $11 {remains equal.}) 36. Rc6 $16 {[%emt 0:02:12][%cal Ob2b4]} Rb7 {[%emt 0:00:41]} 37. b3 {[%emt 0:01:04][%cal Bb2b3,Bb3b4][%mdl 32]} (37. Rxa6 $2 Nc5+ 38. Kc2 Nxa6 $19) 37... Ke7 $2 {[%emt 0:00:55]} (37... a5 $16) 38. Rc8 $2 {[%emt 0:01:10]} (38. Rxa6 $2 Nc5+ 39. Kc3 Nxa6 $19) (38. Bd6+ $18 {and the rest is easy.} Kf7 39. Rxa6) 38... Kf7 {[%emt 0:00:59]} 39. Rb8 {[%emt 0:06:13]} Rd7 {[%emt 0:00:37]} (39... Rxb8 $11 {keeps the balance.} 40. Bxb8 Nd8) 40. b4 {[%emt 0:00:51]} Kg6 $2 {[%emt 0:00:32][%mdl 8192]} (40... Re7 $16) 41. Rb6 $18 {[%emt 0:30:30][%csl LRa6,LRe6]} Nf4+ {[%emt 0:04:32]} 42. Bxf4 {[%emt 0:00:00]} gxf4 {[%emt 0:00:28] KR-KR} 43. h4 $2 {[%emt 0:00:00]} (43. Rxa6 Rb7 44. Kc3 Rc7+ 45. Kd2 Rb7 $18) (43. Kd4 $18 {is more deadly.}) 43... Re7 $16 {[%emt 0:00:47]} 44. Rxa6 {[%emt 0:00:00]} Re3+ {[%emt 0:00:38]} 45. Kd4 {[%emt 0:00:00] Black must now prevent b5. White is more active.} Rxf3 {[%emt 0:00:15]} 46. b5 $1 {[%emt 0:00:00][%cal Ob5b6]} Rf1 {[%emt 0:02:58] [#]} 47. Ra3 {[%emt 0:00:00]} (47. Ra4 $1 $16 f3 48. Ke3 (48. Kxd5 $2 Rd1+ 49. Kc5 f2 $19)) 47... f3 $1 $11 {[%emt 0:02:20]} 48. Rb3 {[%emt 0:00:00]} f2 $2 {[%emt 0:02:21][%mdl 8192]} (48... h5 $1 $11 {and Black is okay.} 49. gxh5+ (49. Kxd5 hxg4 50. b6 Rd1+ 51. Kc5 f2 $19) 49... Kxh5) 49. Ke3 {[%emt 0:00:00] b6 would be deadly.} (49. Kxd5 Rd1+ 50. Kc5 f1=Q 51. h5+ Kg5 52. Rc3 Qf2+ 53. Kc6 Qd4 54. Rc5+ Kxg4 55. Rc2 Qe4+ 56. Kc5 Qxc2+ 57. Kb4 Rb1+ 58. Ka5 Qc5 59. Ka6 Qxb5+ 60. Ka7 Qb7#) 49... Ra1 {[%emt 0:00:51]} (49... d4+ $142 50. Ke2 {[%mdl 64] Deflection} (50. Kxd4 Rd1+ 51. Rd3 Rxd3+ 52. Kxd3 f1=Q+) 50... Ra1 51. Kxf2 Rxa2+ 52. Kf3 d3) 50. Kxf2 $18 {[%emt 0:00:00] Threatens to win with b6.} Rxa2+ {[%emt 0:00:47]} 51. Ke3 $2 {[%emt 0:00:00]} (51. Kf3 $18 {And now b6 would win.} Ra7 52. b6) 51... h5 $1 $11 {[%emt 0:05:34]} 52. b6 {[%emt 0:00:00]} Ra8 $1 {[%emt 0:00:15]} 53. b7 {[%emt 0:00:00]} Rb8 {[%emt 0:00:02]} 54. Kf4 {[%emt 0:21:03]} hxg4 {[%emt 0:01:00]} 55. Kxg4 {[%emt 0:00:11] h5+ is the strong threat.} d4 {[%emt 0:03:07]} 56. Rb5 {[%emt 0:00:22]} f5+ {[%emt 0:09:08]} 57. Kf4 {[%emt 0:02:00]} Kh5 $2 {[%emt 0:00:34][%mdl 8192]} (57... Kg7 $11 58. Rb6 (58. Kxf5 d3 $11) 58... Kf7) 58. Rxf5+ {[%emt 0:00:15]} Kxh4 {[%emt 0:00:02]} 59. Rb5 {[%emt 0:00:17] White mates.} d3 {[%emt 0:00:35]} 60. Ke3 {[%emt 0:00:09]} d2 {[%emt 0:00:14]} 61. Kxd2 {[%emt 0:00:13]} Kg4 {[%emt 0:00:04]} 62. Ke3 {[%emt 0:00:35] Weighted Error Value: White=0.39/Black=0.42} 1-0

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.2"]
[White "Tesar, Jakub"]
[Black "Dolensky, Filip"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1960"]
[BlackElo "2108"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 19,98,26,25,8,17,0,0,0,21,0,0,0,9,6,33,19,54,48,136,61,129,37,36,25,77,46,54,60,41,54,43,28,104,69,72,82,135,130,147,113,250,52,50,27,32,0,49,-22,-18,-16,-16,-18,-45,-61,8,8,243,250,240,182,188,175,196,190,193,192,178,163,190,183,199,202,306,155,146,137,329,228,217,191,170]} 1. e4 {[%emt 0:00:03]} c5 {[%emt 0:00:49]} 2. c3 {[%emt 0:00:14]} d5 {[%emt 0:02:43]} 3. exd5 {[%emt 0:00:16]} Qxd5 {[%emt 0:00:18]} 4. d4 {[%emt 0:00:14]} Nf6 {[%emt 0:01:03]} 5. Nf3 {[%emt 0:00:13]} e6 {[%emt 0:02:32]} 6. Be3 {[%emt 0:01:02]} cxd4 {[%emt 0:00:53]} 7. cxd4 {[%emt 0:02:40]} Nc6 {[%emt 0:01:30]} 8. Nc3 {[%emt 0:03:04]} Qa5 {[%emt 0:04:31]} 9. Be2 {[%emt 0:06:07]} Be7 {[%emt 0:05:42]} 10. O-O {[%emt 0:00:59]} O-O {[%emt 0:01:50]} 11. Qb3 {[%emt 0:04:10] B22: Sicilian: 2 c3.} Rd8 {[%emt 0:10:19]} 12. Rfd1 {[%emt 0:04:28] [#]} Nd5 $146 {[%emt 0:27:00]} ({Predecessor:} 12... Qb4 13. Qc2 a6 14. a3 Qd6 15. Ng5 h6 16. Nge4 Nxe4 17. Nxe4 Qc7 18. Rac1 Bd7 {1-0 Berend,E (2326)-Arakhamia Grant,K (2380) Speed Chess (Women) Q2 blitz 2021 (8)}) 13. Bd2 {[%emt 0:06:30] The position is equal.} Qc7 {[%emt 0:04:16]} 14. Nxd5 {[%emt 0:18:25]} exd5 {[%emt 0:03:38]} 15. Rac1 {[%emt 0:01:59][%cal Of3e5]} Qd6 {[%emt 0:04:11] Inhibits Ne5.} 16. g3 {[%emt 0:12:49]} f6 {[%emt 0:06:42]} 17. Bf1 {[%emt 0:12:55]} g5 {[%emt 0:03:37]} 18. Bg2 {[%emt 0:04:28]} Bd7 {[%emt 0:07:54]} (18... Bf8 $14) 19. a3 {[%emt 0:03:44] White is more active.} (19. Qxb7 $6 Rab8 20. Qa6 Rxb2 $11) (19. h4 $16) 19... Rab8 {[%emt 0:01:41]} ({Black should play} 19... Be8 $14) 20. Bc3 {[%emt 0:06:33]} (20. h4 $1 $16 {[%cal Rh4g5]}) 20... Bf5 {[%emt 0:02:02]} 21. Nd2 {[%emt 0:00:46]} Bg6 {[%emt 0:00:44]} (21... Qd7 $11 {keeps the balance.}) 22. Nf1 {[%emt 0:00:20]} (22. Ne4 $5 {[%cal Re4d6]} Qc7 23. Nc5 $14) 22... Bf7 {[%emt 0:01:05]} 23. Ne3 {[%emt 0:00:28]} Qd7 {[%emt 0:00:48] Inhibits Nf5.} 24. Re1 {[%emt 0:00:55]} Bf8 {[%emt 0:00:32]} 25. Bf3 {[%emt 0:01:46][%cal Bg2f3,Bf3e2,Be2d3][%mdl 32]} h5 {[%emt 0:00:19]} (25... f5 $11 {remains equal.}) 26. Qd1 {[%emt 0:01:14]} g4 {[%emt 0:01:05]} 27. Be2 {[%emt 0:00:22][%cal Oh2h3]} f5 {[%emt 0:02:10]} (27... Bg6 $142) 28. Bd3 $16 {[%emt 0:01:21]} Be6 {[%emt 0:00:10]} 29. Qc2 {[%emt 0:00:33][%cal Re3f5]} Bh6 {[%emt 0:00:07]} (29... f4 $16) 30. Rcd1 $2 {[%emt 0:00:29]} (30. Bxf5 Bxf5 31. Nxf5 Bxc1 32. Rxc1 Qh7 $17) (30. Nxf5 $1 $18 Bg5 31. h4) 30... Rf8 $14 {[%emt 0:00:24]} 31. b4 {[%emt 0:01:10]} Rbc8 {[%emt 0:01:16][%cal Oc6d4]} 32. Qb3 {[%emt 0:01:45]} f4 {[%emt 0:01:08]} (32... Nd8 $11) 33. Nf1 (33. Ng2 $1 $14) 33... fxg3 {[%emt 0:01:13]} 34. hxg3 {[%emt 0:00:53]} Qf7 {[%emt 0:00:25]} (34... a6 {simplifies} 35. a4 Ne7 36. b5 axb5 37. Bxb5 Nc6) 35. Re2 {[%emt 0:00:38] [#]} h4 $1 {[%emt 0:00:30][%cal Oc6e5]} 36. b5 {[%emt 0:01:10] [#]} (36. gxh4 g3 37. Nxg3 (37. fxg3 Bg4 $17 {[%mdl 64] Skewer}) 37... Bg4 $17) (36. Qb2 Ne7) 36... h3 {[%emt 0:00:30]} 37. Nh2 $11 {[%emt 0:01:39]} (37. bxc6 $2 {perishes.} Qf3 $19) 37... Nb8 {[%emt 0:01:24]} (37... Ne5 $1 $11 {and Black stays safe.} 38. dxe5 (38. Rxe5 $2 {leads to mate.} Qxf2+ 39. Kh1 Qg2#) 38... d4) 38. Bb4 $18 {[%emt 0:00:47]} Rfe8 {[%emt 0:00:05]} 39. Rde1 {[%emt 0:01:06] aiming for Qb1.} Nd7 {[%emt 0:00:52] [#]} 40. Qb1 $1 $36 {[%emt 0:00:58][%mdl 2048] Black must now prevent Bg6. White is really pushing.} Kg7 {[%emt 0:01:39] [#] Repels Bg6} 41. Bg6 $1 {[%emt 0:14:12][%mdl 576] Decoy} Qxg6 {[%emt 0:01:49]} 42. Qxg6+ {[%emt 0:00:07][%mdl 64] Remove Defender} Kxg6 {[%emt 0:00:05]} 43. Rxe6+ {[%emt 0:00:05]} Rxe6 {[%emt 0:01:48]} 44. Rxe6+ {[%emt 0:00:06]} Kh5 {[%emt 0:06:21] ...Rc1+ is the strong threat.} 45. Nxg4 $1 {[%emt 0:02:40][%mdl 64] Deflection} Bg5 {[%emt 0:09:37]} (45... Bd2 {was necessary.}) 46. Ne3 {[%emt 0:01:40]} ({White should try} 46. Ne5 $18 Nxe5 47. Rxe5) 46... Bxe3 $16 {[%emt 0:06:36]} 47. Rxe3 {[%emt 0:00:20] Kh2 would be deadly.} Rc4 $2 {[%emt 0:02:00]} (47... Nf6 $16 {was worth a try.}) 48. Re7 {[%emt 0:12:12]} Nf6 {[%emt 0:00:27]} 49. f3 {[%emt 0:01:08] Repels Ne4. And now Kh2 would win.} Rc2 {[%emt 0:00:07] Weighted Error Value: White=0.32/Black=0.36} 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.3"]
[White "Werner, Hong Quan Dan"]
[Black "Davidek, Zdenek"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2085"]
[BlackElo "1957"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 14,110,11,5,47,0,22,0,4,0,0,0,0,0,0,0,9,1,11,-2,15,0,0,0,0,-2,0,-4,0,0,0,0,0,0,0,0,0,-10,0,-29,16,14,71,66,73,0,8,0,-7,-13,36,0,118,87,111,115,378,221,397,402,408,206,277,263,263,256,281,272,309,303,304,210,213,200,222,196,202,0,0,0,0,0,0,0,0,-228,-215,-224,-184,-205,0,0,0,0,0,0,0,0,11]} 1. e4 {[%emt 0:00:13]} e5 {[%emt 0:00:20]} 2. Nf3 {[%emt 0:00:20]} Nc6 {[%emt 0:00:10]} 3. Bc4 {[%emt 0:01:38]} Nf6 {[%emt 0:01:04]} 4. d3 {[%emt 0:00:12]} Bc5 {[%emt 0:00:17]} 5. c3 {[%emt 0:00:50]} O-O {[%emt 0:02:38]} 6. O-O {[%emt 0:01:44]} d6 {[%emt 0:05:49]} 7. Bb3 {[%emt 0:00:30] 7.Bb3 has lost popularity.} h6 {[%emt 0:01:10]} 8. Nbd2 {[%emt 0:00:21]} Be6 {[%emt 0:01:42] C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. Re1 {[%emt 0:02:40]} (9. Bxe6 $14 fxe6 10. b4) 9... Re8 {[%emt 0:06:48]} 10. Nf1 {[%emt 0:04:39]} d5 {[%emt 0:09:02]} 11. Qc2 {[%emt 0:09:57]} Qd7 {[%emt 0:10:35]} 12. Be3 {[%emt 0:11:18] [#]} Bf8 $146 {[%emt 0:07:07]} ({Predecessor:} 12... Bb6 13. h3 Rad8 14. Ba4 Qd6 15. Rad1 Re7 16. Bxc6 bxc6 17. d4 Nxe4 18. dxe5 Qd7 19. Bxb6 axb6 20. Rxe4 {1-0 Akopian,V (2605)-Montecatine Rios,R (2345) Dos Hermanas 1992 (1)}) 13. h3 {[%emt 0:03:32]} a6 {[%emt 0:01:53]} 14. Rad1 {[%emt 0:03:57]} Rad8 {[%emt 0:03:13]} 15. Ng3 {[%emt 0:01:39]} Qc8 {[%emt 0:13:26]} 16. a3 {[%emt 0:07:39]} g6 {[%emt 0:03:32]} 17. Nh2 {[%emt 0:10:53]} Bg7 {[%emt 0:00:52]} 18. Qc1 {[%emt 0:02:56]} Kh7 {[%emt 0:03:59]} 19. f3 {[%emt 0:04:05]} Na5 {[%emt 0:08:54]} 20. Ba2 {[%emt 0:02:01]} dxe4 {[%emt 0:04:26]} 21. Bxe6 {[%emt 0:00:22]} Qxe6 {[%emt 0:00:52]} 22. fxe4 {[%emt 0:03:27]} Nb3 {[%emt 0:00:58]} 23. Qc2 {[%emt 0:00:07]} c5 {[%emt 0:02:25]} 24. Nf3 {[%emt 0:03:19]} Rd7 {[%emt 0:01:00]} 25. Nd2 {[%emt 0:10:46]} Nxd2 {[%emt 0:01:14]} 26. Rxd2 {[%emt 0:00:04]} (26. Qxd2 $5 {[%cal Re3c5]} Red8 27. Qc2 $11 (27. Bxc5 Rxd3 28. Qe2 Rxd1 $17)) 26... Qc6 {[%emt 0:01:02]} 27. c4 {[%emt 0:01:23]} Rde7 {[%emt 0:01:45]} (27... Red8 $11) 28. Ne2 {[%emt 0:01:07]} Nd7 {[%emt 0:02:42]} 29. Nc3 {[%emt 0:00:48]} (29. Rf1 $1 $16) 29... f5 $1 $11 {[%emt 0:00:11]} 30. Nd5 {[%emt 0:01:00]} Rf7 {[%emt 0:00:05]} 31. b4 {[%emt 0:03:29]} Bf8 {[%emt 0:01:51]} (31... cxb4 $11 32. axb4 Rc8) 32. g3 {[%emt 0:02:38]} (32. Rb1 {keeps more tension.} Be7 33. Qd1 fxe4 34. dxe4 cxb4 35. axb4 Qxc4 36. Qg4) 32... Bd6 {[%emt 0:00:37]} (32... f4 $11 {keeps the balance.} 33. gxf4 cxb4) 33. Rf1 {[%emt 0:00:57]} Ref8 {[%emt 0:01:29]} 34. Rdf2 {[%emt 0:00:22] White has more active pieces.} Nb8 $2 {[%emt 0:02:59][%mdl 8192]} (34... Bb8 $16) 35. Qd2 {[%emt 0:02:04]} (35. exf5 $142 gxf5 36. d4) 35... Qc8 $2 {[%emt 0:01:05]} (35... cxb4 36. axb4 f4) 36. Bxh6 $18 {[%emt 0:00:09]} Rg8 {[%emt 0:00:13]} 37. Kh2 {[%emt 0:03:17]} (37. Qg5 $142 {Strongly threatening Qh4.} Qd8 38. Qe3) 37... Nc6 {[%emt 0:00:35]} 38. Qg5 {[%emt 0:00:41]} Qd8 {[%emt 0:00:04]} 39. exf5 {[%emt 0:00:48]} Qxg5 {[%emt 0:00:23]} 40. Bxg5 {[%emt 0:00:05] And now fxg6+ would win.} gxf5 {[%emt 0:00:51]} 41. Nf6+ {[%emt 0:31:46]} (41. Rxf5 $6 Rxf5 42. Rxf5 cxb4 $18) 41... Kg6 {[%emt 0:01:16]} 42. Nxg8 {[%emt 0:00:00]} Kxg5 {[%emt 0:00:19] [#]} 43. g4 $1 {[%emt 0:00:00]} f4 {[%emt 0:02:42] [#]} 44. h4+ $1 {[%emt 0:00:00]} Kxh4 {[%emt 0:00:35] [#] ...Kg5 would be deadly.} 45. Kg1 $2 {[%emt 0:00:00]} ({Only move:} 45. g5 $1 $18 {[%cal Rg5g6]}) 45... Bf8 {[%emt 0:01:26]} 46. Rh2+ {[%emt 0:00:00]} Kg5 {[%emt 0:01:49]} ({Don't play} 46... Kxg4 47. b5 axb5 48. cxb5 $14 (48. Rg2+ $2 Kf5 $19)) 47. b5 {[%emt 0:00:00]} axb5 {[%emt 0:01:37]} (47... Nd4 48. a4 $14) 48. cxb5 {[%emt 0:00:00]} Nd4 {[%emt 0:00:05] Threatens to win with ...c4.} 49. Rh5+ $2 {[%emt 0:00:00]} (49. Kf2 $11 {and White stays safe.}) 49... Kxg4 $19 {[%emt 0:02:35]} 50. Nh6+ {[%emt 0:00:00]} Bxh6 $1 {[%emt 0:00:39]} 51. Rxh6 {[%emt 0:00:00] [#]} Nxb5 $2 {[%emt 0:01:16]} ({Black should play} 51... c4 $1 $19 {[%cal Rc4d3]} 52. dxc4 Nf3+ 53. Kg2 e4) 52. a4 {[%emt 0:00:00] The position is equal.} Nc3 {[%emt 0:05:53][%cal Of7d7]} 53. Kf2 {[%emt 0:00:00]} Nxa4 {[%emt 0:03:00]} 54. Rg1+ {[%emt 0:00:00]} Kf5 {[%emt 0:00:05]} 55. Rh5+ {[%emt 0:00:00]} ({But not} 55. Rhg6 Rf6 56. R6g5+ Ke6 $17) 55... Ke6 {[%emt 0:04:04] Quite a comeback for White.   Weighted Error Value: White=0.29 (precise) /Black=0.29 (precise)} 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.4"]
[White "Mohapl, Tomas"]
[Black "Paseka, Matyas"]
[Result "0-1"]
[ECO "E71"]
[WhiteElo "1946"]
[BlackElo "2082"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 9,66,36,45,41,30,19,70,44,48,40,52,33,49,38,43,33,45,44,39,21,25,17,5,-46,32,37,36,-20,-13,-19,-19,-20,0,0,79,93,84,-110,-97,-217,-200,-226,-222,-608,-628,-816,-725,-1357,-1353,-29987,-29988,-29994,-29995,-29995,-522,-29996,-29997,-29997,-29998]} 1. d4 {[%emt 0:00:03]} Nf6 {[%emt 0:00:08]} 2. c4 {[%emt 0:00:19]} g6 {[%emt 0:00:06]} 3. Nc3 {[%emt 0:00:26]} Bg7 {[%emt 0:00:12]} 4. e4 {[%emt 0:00:45]} d6 {[%emt 0:00:07]} 5. h3 {[%emt 0:00:42]} Nbd7 {[%emt 0:00:10]} 6. Be3 {[%emt 0:04:08] E71: King's Indian: 4 e4 d6 5 h3.} e5 {[%emt 0:00:31]} 7. d5 {[%emt 0:01:09]} h5 {[%emt 0:00:09]} (7... Nc5 $11) 8. b4 {[%emt 0:17:50] [#] White is slightly better.} Bh6 $146 {[%emt 0:05:01]} ({Predecessor:} 8... a5 9. a3 h4 10. c5 Nh5 11. cxd6 cxd6 12. Nb5 O-O 13. Nf3 Ndf6 14. Nd2 Nf4 {0-1 Gharibyan,M (2479)-Ivic,V (2610) EU-ch 22nd Terme Catez 2022 (6)}) 9. Bxh6 {[%emt 0:03:11]} Rxh6 {[%emt 0:00:08]} 10. Bd3 {[%emt 0:03:05]} h4 {[%emt 0:04:19]} 11. Qc1 {[%emt 0:09:17]} Rh8 {[%emt 0:00:27]} 12. Nf3 {[%emt 0:03:13][%cal Oc4c5]} Nh5 {[%emt 0:03:14]} 13. Ne2 {[%emt 0:00:33] Inhibits Nf4.} b6 {[%emt 0:04:48]} 14. Qc3 {[%emt 0:19:04]} Qf6 {[%emt 0:10:44]} 15. Bc2 {[%emt 0:02:00]} Kf8 {[%emt 0:06:57]} 16. Ba4 {[%emt 0:03:22]} (16. O-O $11) 16... Kg7 {[%emt 0:05:08]} (16... a5 $1 $15) 17. Bc6 $36 {[%emt 0:02:23][%mdl 2048] White has good play.} Rb8 {[%emt 0:00:28][%cal Oa7a5,Ba8b8,Bb8b6,Bb6b2][%mdl 32]} 18. a4 {[%emt 0:05:27] [#]} ({White should play} 18. O-O $14) 18... a5 $1 $11 {[%emt 0:04:34][%mdl 64] Deflection} 19. bxa5 {[%emt 0:04:38]} Nc5 {[%emt 0:00:09] Inhibits a6.} (19... bxa5 $5 {[%cal Rd7c5]} 20. Bxd7 (20. Qxa5 $2 {perishes.} Nc5 $19) 20... Bxd7 $15) 20. axb6 {[%emt 0:00:51]} Rxb6 {[%emt 0:00:14] ...Rb3 would be deadly.} 21. Nd2 {[%emt 0:04:10] Inhibits Rb3.} Nf4 {[%emt 0:30:20]} (21... Qg5 $1 $11 {keeps the balance.} 22. Nf3 Qh6) 22. Nxf4 $16 {[%emt 0:02:39]} Qxf4 {[%emt 0:00:11]} 23. Qe3 {[%emt 0:10:14]} (23. O-O $16 {and life is bright.}) 23... Rb2 {[%emt 0:03:15] Black has more active pieces. The white rooks are badly placed.} 24. Bb5 {[%emt 0:01:50]} (24. Qxf4 $17 {might work better.} exf4 25. a5) 24... Qxe3+ $19 {[%emt 0:02:14]} 25. fxe3 {[%emt 0:00:06] [#]} Rh5 $1 {[%emt 0:00:10][%cal Bh8h5,Bh5g5,Bg5g3,Bg3e3][%mdl 32] aiming for ...Rg5.} 26. a5 $2 {[%emt 0:00:53]} (26. Rh2 Rh8 27. Kd1) 26... Rg5 {[%emt 0:01:16]} 27. Rg1 {[%emt 0:00:47]} Rg3 {[%emt 0:03:08]} 28. a6 {[%emt 0:00:47]} Rxe3+ {[%emt 0:00:23]} 29. Kf1 {[%emt 0:00:27] White is weak on the dark squares} Rxd2 {[%emt 0:00:23]} 30. a7 {[%emt 0:00:18]} Nxe4 {[%emt 0:02:24][%cal Re4g3]} 31. Rh1 {[%emt 0:00:31]} Ng3+ {[%emt 0:00:06]} 32. Kg1 {[%emt 0:00:05]} Ree2 {[%emt 0:00:05][%csl Gd2][%cal Re2g2]} 33. Rh2 {[%emt 0:00:44] [#]} Bxh3 $1 {[%emt 0:00:06] Weighted Error Value: White=0.88/Black=0.15 (very precise)} 0-1

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.5"]
[White "Mametev, Artem"]
[Black "Kubin, Tomas Daniel"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2074"]
[BlackElo "1936"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 30,77,37,29,64,43,57,53,56,32,37,37,34,34,165,120,128,125,251,250,252,243,251,233,235,226,462,0,0,-248,-248,-330,-334,-342,-341,-334,-315,-332,-368,-693,-685,-814,-804,-1803,-1415,-1189,-1097,-1017,-998,-29999]} 1. e4 {[%emt 0:10:45]} c5 {[%emt 0:00:12]} 2. Nf3 {[%emt 0:00:04][%cal Bg1f3,Bf3d4,Bd4b5,Bb5a3,Ba3c2][%mdl 32]} Nc6 {[%emt 0:00:08]} 3. d4 {[%emt 0:00:05]} cxd4 {[%emt 0:00:07]} 4. Nxd4 {[%emt 0:00:03]} Nf6 {[%emt 0:00:24]} 5. Nc3 {[%emt 0:00:09]} e5 {[%emt 0:00:26]} 6. Ndb5 {[%emt 0:00:18]} d6 {[%emt 0:00:08]} 7. Bg5 {[%emt 0:00:04]} a6 {[%emt 0:00:11]} 8. Na3 {[%emt 0:00:05]} b5 {[%emt 0:00:13]} 9. Nd5 {[%emt 0:00:09]} Be7 {[%emt 0:00:11]} 10. Bxf6 {[%emt 0:00:03]} Bxf6 {[%emt 0:00:44]} 11. c4 {[%emt 0:00:02]} b4 {[%emt 0:05:40]} 12. Nc2 {[%emt 0:00:07]} a5 {[%emt 0:01:45]} 13. g3 {[%emt 0:00:07]} Bg5 {[%emt 0:06:39]} 14. Bg2 {[%emt 0:00:19]} O-O {[%emt 0:03:55]} 15. O-O {[%emt 0:00:16]} Rb8 {[%emt 0:11:23]} 16. b3 {[%emt 0:01:51]} f5 {[%emt 0:03:35] B33: Sicilian: Pelikan and Sveshnikov Variations.} 17. exf5 {[%emt 0:00:42]} Bxf5 {[%emt 0:01:10]} 18. Nde3 {[%emt 0:00:52]} Bxe3 {[%emt 0:03:40] White is slightly better.} 19. Nxe3 {[%emt 0:00:16]} ({Reject} 19. Bxc6 Bc5 $11) 19... Nd4 {[%emt 0:04:24]} 20. Nxf5 {[%emt 0:01:57]} Rxf5 {[%emt 0:01:42] [#]} 21. Qd3 $146 {[%emt 0:02:53]} ({Predecessor:} 21. Bd5+ Kh8 22. Be4 Rf6 23. Qd3 Qb6 24. Rad1 Rbf8 25. Qe3 Qc5 26. Kg2 a4 27. h4 {½-½ Yu,B (1180)-Chia,Y (1891) Tanglin op Singapore 2022 (2)}) 21... Qf6 {[%emt 0:12:21]} (21... g6 $14) 22. Be4 {[%emt 0:06:29]} Rh5 {[%emt 0:06:54]} 23. f4 {[%emt 0:02:14]} Qe7 {[%emt 0:02:34]} (23... exf4 $16 24. Rad1 Ne6) 24. Bd5+ {[%emt 0:05:05]} Kh8 {[%emt 0:01:38]} 25. fxe5 {[%emt 0:03:13]} dxe5 {[%emt 0:01:42]} 26. Rae1 {[%emt 0:05:21] [#] Qxd4 would be deadly.} Qd6 {[%emt 0:04:57]} 27. Rf7 {[%emt 0:06:50]} g6 $2 {[%emt 0:04:59]} (27... Rf8 28. Ref1 Rxf7 29. Rxf7 Rh6) 28. Qe3 $2 {[%emt 0:03:17]} (28. g4 $18 Rg5 29. h3) 28... Nc2 $1 $11 {[%emt 0:03:38][%csl LRe1,LRe3]} 29. Qf2 {[%emt 0:31:47]} (29. Qa7 $1 $11 Nxe1 30. c5 Nf3+ 31. Rxf3) 29... Nxe1 $19 {[%emt 0:00:58]} 30. Qxe1 {[%emt 0:00:58]} Rf5 {[%emt 0:01:33]} 31. Rxf5 {[%emt 0:03:31]} gxf5 {[%emt 0:00:13][%mdl 4096] Endgame KQR-KQB} 32. Kg2 {[%emt 0:02:20]} Re8 {[%emt 0:01:53] Strongly threatening ...e4.} 33. Qe3 {[%emt 0:00:32]} e4 {[%emt 0:02:12]} 34. h4 $2 {[%emt 0:02:29] [#]} (34. Bf7 Re7 35. Bd5) 34... Qe5 {[%emt 0:02:28]} 35. h5 {[%emt 0:05:34]} Qc3 {[%emt 0:03:25]} 36. Qc5 {[%emt 0:00:21]} Qf3+ 37. Kh2 Qxh5+ {[%emt 0:00:51]} 38. Kg2 {[%emt 0:01:24]} Qf3+ {[%emt 0:01:30]} 39. Kh3 {[%emt 0:00:09]} Qh1# {Quite a comeback for Black.   Weighted Error Value: White=1.00/Black=0.68} 0-1

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.6"]
[White "Slaby, Matej"]
[Black "Hozda, Max"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1932"]
[BlackElo "2067"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 9,93,-37,80,0,-3,-50,-24,-37,-4,0,41,29,20,0,0,0,36,15,26,0,0,0,0,0,0,0,18,16,17,0,0,0,0,0,62,50,92,92,92,92,92,92,92,92,117,102,112,104,154,152,154,156,156,143,145,148,134,131,224,215,203,207,231,136,131,130,243,240,3000,2211,29971,29972,29980,29970,29974,29974,29981,29982,29982,29983,29983,29984,29983,29984,29987,29988]} 1. Nf3 {[%emt 0:00:05]} Nf6 {[%emt 0:00:19]} 2. d4 {[%emt 0:00:09]} d5 {[%emt 0:00:10]} 3. Bf4 {[%emt 0:00:18]} c5 {[%emt 0:00:29]} 4. c3 {[%emt 0:00:35]} Nc6 {[%emt 0:01:02]} 5. dxc5 {[%emt 0:04:46]} a5 {[%emt 0:09:12]} (5... e6 $1 $15) 6. h3 {[%emt 0:06:19] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} (6. Na3 $1 $16 {[%cal Ra3b5] Nb5 would be deadly.} Nh5 7. Qd2) 6... e6 $11 {[%emt 0:01:09] [#]} 7. Na3 $146 {[%emt 0:02:10]} (7. e3 $11 {is more appropriate.}) ({Predecessor:} 7. e3 Bxc5 8. Bb5 O-O 9. O-O Qb6 10. Qb3 Ne4 11. Bd3 Qxb3 12. axb3 f6 13. b4 {½-½ Sahidi,S (2406)-Mazur,S (2416) Slovak Hybrid Teams 2021 (5.1)}) 7... Bxc5 $15 {[%emt 0:07:21] Threatens to win with ...Qb6.} 8. Nb5 {[%emt 0:01:35] Nc7+ is the strong threat. Black has an edge.} Ne4 {[%emt 0:02:36][%csl Ge4][%cal Rc5f2]} 9. e3 {[%emt 0:00:41]} Nd6 {[%emt 0:01:22]} 10. Nxd6+ {[%emt 0:04:10]} Bxd6 {[%emt 0:00:16]} 11. Bxd6 {[%emt 0:00:07]} Qxd6 {[%emt 0:00:05]} 12. e4 {[%emt 0:00:17]} Ne7 {[%emt 0:07:39]} 13. Bb5+ {[%emt 0:04:57]} Bd7 {[%emt 0:01:05]} 14. Qa4 {[%emt 0:00:43]} (14. e5 $5 {[%cal Re5d6]} Qc7 15. a4 $11) 14... Bxb5 {[%emt 0:07:56]} 15. Qxb5+ {[%emt 0:00:12]} Qc6 {[%emt 0:01:22]} 16. Nd4 {[%emt 0:01:08][%mdl 64] Pin} Qxb5 {[%emt 0:00:46]} 17. Nxb5 {[%emt 0:00:06] Black must now prevent Nc7+.} O-O {[%emt 0:06:53]} 18. exd5 {[%emt 0:03:30]} Nxd5 {[%emt 0:00:35]} 19. O-O {[%emt 0:00:24]} Rac8 {[%emt 0:06:56]} 20. Rfd1 {[%emt 0:04:36]} Rc5 {[%emt 0:01:06]} 21. a4 {[%emt 0:00:40]} Rfc8 {[%emt 0:02:07] [#]} (21... Rb8 $11) 22. c4 $1 $14 {[%emt 0:09:35]} Nb6 {[%emt 0:14:42]} (22... Nf6 23. b3) 23. b3 {[%emt 0:02:46] aiming for Nd6.} Kf8 {[%emt 0:01:12]} 24. Rd6 {[%emt 0:02:03]} R5c6 {[%emt 0:01:04]} 25. Rad1 {[%emt 0:00:21]} Ke7 {[%emt 0:02:48]} 26. R6d3 {[%emt 0:01:44] White is more active.} Rb8 {[%emt 0:02:40]} 27. Kf1 {[%emt 0:02:59]} Rcc8 {[%emt 0:02:45]} 28. Ke2 {[%emt 0:01:23]} Rd8 {[%emt 0:01:40]} (28... Rc5 $142) 29. Rxd8 $1 $16 {[%emt 0:01:28]} Rxd8 {[%emt 0:00:05]} 30. Rxd8 {[%emt 0:00:07]} Kxd8 {[%emt 0:00:04][%mdl 4096] Endgame KN-KN} 31. Nd6 $1 {[%emt 0:00:16][%csl LRb7,LRf7]} Kc7 {[%emt 0:00:19]} 32. Nxf7 {[%emt 0:00:11]} Nd7 {[%emt 0:00:40]} 33. Kd2 {[%emt 0:01:25]} h6 {[%emt 0:00:51]} (33... Nc5 $16 {keeps fighting.}) 34. Kc3 $18 {[%emt 0:03:15]} Nc5 {[%emt 0:01:15]} 35. f3 {[%emt 0:00:16] Wards off Ne4+} b6 {[%emt 0:00:48]} 36. Ne5 {[%emt 0:01:00]} ({Better is} 36. h4 $18) 36... Kd6 $16 {[%emt 0:01:07]} 37. Nd3 {[%emt 0:01:34]} g5 {[%emt 0:03:48]} (37... e5 $16 38. Nxc5 bxc5) 38. g3 {[%emt 0:07:00]} e5 $2 {[%emt 0:02:32] [#]} (38... Nd7 39. b4 axb4+ 40. Kxb4 Kc6) 39. Nxc5 $1 $18 {[%emt 0:06:07]} bxc5 {[%emt 0:00:07] KP-KP} 40. Kd3 {[%emt 0:00:19] White mates.} h5 {[%emt 0:02:18]} 41. Ke3 {[%emt 0:30:38]} Ke7 {[%emt 0:34:27]} 42. Ke4 {[%emt 0:02:29]} Ke6 {[%emt 0:00:10] [#]} 43. h4 $1 {[%emt 0:00:29]} gxh4 {[%emt 0:00:40]} 44. gxh4 {[%emt 0:00:05]} Kf6 {[%emt 0:00:06]} 45. Kd5 {[%emt 0:01:05]} Kf5 {[%emt 0:00:12]} 46. Kxc5 {[%emt 0:00:09]} Kf4 {[%emt 0:00:08]} 47. Kd5 {[%emt 0:00:08] Weighted Error Value: White=0.10 (very precise) /Black=0.35} 1-0

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.7"]
[White "Prazak, Daniel"]
[Black "Fizer, Marek"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2064"]
[BlackElo "1929"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 9,56,14,6,11,34,26,37,30,32,34,31,37,41,22,53,33,49,55,122,35,34,14,22,14,65,0,19,0,11,25,6,-7,-12,-10,7,0,37,31,39,33,49,0,0,-15,216,-15,-12,-30,0]} 1. e4 {[%emt 0:00:03]} c5 {[%emt 0:00:05]} 2. Nf3 {[%emt 0:00:17]} d6 {[%emt 0:00:10]} 3. Bb5+ {[%emt 0:00:10]} Nd7 {[%emt 0:00:15]} 4. a4 {[%emt 0:00:32]} Ngf6 {[%emt 0:00:37]} 5. Nc3 {[%emt 0:00:10]} a6 {[%emt 0:00:32]} 6. Be2 {[%emt 0:00:12] B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} g6 {[%emt 0:00:42]} 7. O-O {[%emt 0:01:02]} Bg7 {[%emt 0:00:57]} 8. a5 {[%emt 0:00:54] White is slightly better.} O-O {[%emt 0:02:04]} 9. d3 {[%emt 0:00:25]} b5 {[%emt 0:01:52]} 10. axb6 {[%emt 0:00:15]} Nxb6 {[%emt 0:00:09]} 11. Qd2 {[%emt 0:00:10]} a5 {[%emt 0:05:56]} 12. Qf4 {[%emt 0:08:14] [#]} Bd7 $146 {[%emt 0:02:42]} ({Predecessor:} 12... a4 13. Qh4 h5 14. Ra3 Re8 15. h3 Bd7 16. Ng5 Qc7 17. f4 c4 18. d4 Nh7 {1-0 So,W (2773)-Vokhidov,S (2552) Chess.com Rapid Wk19 Swiss 2022 (1)}) 13. Qh4 {[%emt 0:02:02]} Nh5 {[%emt 0:03:33] [#]} (13... a4 $14) 14. g4 {[%emt 0:16:34]} ({White should try} 14. Ng5 $1 $16) 14... Nf6 $1 $14 {[%emt 0:01:47]} 15. h3 {[%emt 0:01:01]} Bc6 {[%emt 0:09:22]} 16. Bh6 {[%emt 0:04:08]} Qc7 {[%emt 0:09:26]} (16... e5 $11) 17. Ng5 {[%emt 0:06:56]} (17. Nd2 $14) 17... Nbd7 $11 {[%emt 0:21:13]} 18. f4 {[%emt 0:03:04]} Rfb8 {[%emt 0:11:41]} 19. Bxg7 {[%emt 0:13:57]} Kxg7 {[%emt 0:00:17]} 20. b3 {[%emt 0:00:31] [#]} a4 $1 {[%emt 0:03:57]} 21. bxa4 {[%emt 0:12:58]} Rb2 {[%emt 0:02:43]} 22. Rac1 {[%emt 0:01:05]} Qa5 {[%emt 0:08:33]} 23. Nd1 {[%emt 0:02:13]} Ra2 {[%emt 0:00:32] And now ...Qd2 would win.} 24. Ne3 {[%emt 0:05:27]} Qd2 {[%emt 0:04:35] Prevents Rce1.} 25. Nc4 {[%emt 0:01:55]} (25. Qf2 $14) 25... Qc3 {[%emt 0:02:10] Active counter play!} ({Resist} 25... Qxe2 26. Rfe1 Rxc2 27. Rxe2 Rxc1+ 28. Re1 Rxe1+ 29. Qxe1 $16) 26. e5 {[%emt 0:02:56]} Qd4+ $2 {[%emt 0:01:04] [#]} (26... dxe5 $11 {and Black stays safe.} 27. fxe5 Nxe5 28. Rxf6 {[%mdl 64] Remove Defender} exf6 29. Qxh7+ (29. Nxh7 $2 {perishes.} Qd4+ 30. Qf2 Qd5 $19) 29... Kf8) 27. Kh2 $2 {[%emt 0:00:48]} (27. Rf2 $1 $18 h6 28. exf6+ Qxf6 {[%mdl 64] Pin} 29. Nf3) 27... dxe5 {[%emt 0:00:17]} 28. fxe5 {[%emt 0:05:14]} Nxe5 {[%mdl 32768] Weighted Error Value: White=0.27 (precise) /Black=0.24 (precise) . Loss on time!?} 0-1

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.8"]
[White "Tillmann, Stanislav"]
[Black "Seidl, Jan"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1907"]
[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 23,73,0,0,0,-18,-13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-9,-10,-8,-8,-8,-8,-9,0,-10,0,-8,-11,0,0,-185,-185,-367,-316,-330,-180,-182,-193,-182,0,-131,0,-189,0,-143]} 1. e4 {[%emt 0:00:03]} c6 {[%emt 0:00:04]} 2. d4 {[%emt 0:00:06]} d5 {[%emt 0:00:04]} 3. exd5 {[%emt 0:00:04]} cxd5 {[%emt 0:00:04]} 4. c4 {[%emt 0:00:03]} Nf6 {[%emt 0:00:06]} 5. Nc3 {[%emt 0:00:09]} Nc6 {[%emt 0:00:15]} 6. Nf3 {[%emt 0:00:07]} Bg4 {[%emt 0:03:06]} 7. cxd5 {[%emt 0:00:44]} Nxd5 {[%emt 0:00:05]} 8. Qb3 {[%emt 0:01:03]} Bxf3 {[%emt 0:00:07]} 9. gxf3 {[%emt 0:01:00]} e6 {[%emt 0:00:06]} 10. Qxb7 {[%emt 0:01:14]} Nxd4 {[%emt 0:00:25]} 11. Bb5+ {[%emt 0:00:45]} Nxb5 {[%emt 0:00:07]} 12. Qc6+ {[%emt 0:00:56]} Ke7 {[%emt 0:00:06]} 13. Qc5+ {[%emt 0:00:59] B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Nd6 {[%emt 0:00:26] aiming for ...Nxc3.} 14. Nxd5+ {[%emt 0:00:07]} exd5 {[%emt 0:00:05]} 15. O-O {[%emt 0:00:27]} Qb6 {[%emt 0:09:13]} 16. Qxd5 {[%emt 0:03:57]} Qb7 {[%emt 0:04:47]} 17. Qe5+ {[%emt 0:06:31]} Kd7 {[%emt 0:00:13]} 18. Rd1 {[%emt 0:01:14]} Re8 $1 {[%emt 0:27:12]} (18... Qxf3 $2 19. Bf4 Qg4+ 20. Bg3 $18) 19. Qf5+ {[%emt 0:03:47]} Re6 {[%emt 0:00:21]} 20. Qxf7+ {[%emt 0:05:27]} Be7 {[%emt 0:00:12][%cal Oe6e1] ...Re1+! would be deadly.} 21. Bg5 {[%emt 0:01:42][%cal Od1d6] [#] Rxd6+! is the strong threat.} Qb6 $146 {[%emt 0:08:47]} (21... Qxb2 $2 22. Rxd6+ Rxd6 23. Qxe7+ Kc8 24. Rc1+ $18) ({Predecessor:} 21... Re8 22. Rxd6+ Rxd6 23. Re1 Qd5 24. Rxe7+ Rxe7 25. Qxe7+ Kc6 26. Bf4 Rd7 27. Qa3 Kb7 {1-0 Durarbayli,V (2629)-Samunenkov,I (2319) Titled Tuesday intern op 30th Nov blitz 2021 (9)}) 22. Qxg7 {[%emt 0:04:53] Threatens to win with Bxe7.} Re8 {[%emt 0:00:25] Strongly threatening ...Rg6.} 23. Re1 {[%emt 0:07:12]} Qa5 {[%emt 0:07:27][%csl LRe1,LRg5]} 24. Rxe6 {[%emt 0:08:28]} Kxe6 {[%emt 0:00:26]} 25. Bf4 {[%emt 0:10:14][%cal Oa1d1]} Qd5 {[%emt 0:08:39] Repels Rd1} 26. Qxh7 {[%emt 0:07:57]} Kd7 {[%emt 0:02:21]} 27. Re1 {[%emt 0:04:01]} Nf5 {[%emt 0:03:07]} 28. Qh5 {[%emt 0:06:15]} (28. Qg6 $2 Rg8 $19) 28... Rg8+ {[%emt 0:01:03]} 29. Bg3 {[%emt 0:00:07]} Rg5 {[%emt 0:01:02]} 30. Qh8 {[%emt 0:07:18] [#]} (30. Qh7 $1 $11 {and White is okay.}) 30... Nd4 $1 $36 {[%emt 0:04:28][%mdl 2048] Black has strong initiative.} (30... Qxa2 31. Qe5 (31. Qb8 Qa5 $11) 31... Qc4 32. h4 $16) 31. Qh3+ $2 {[%emt 0:03:34]} (31. Kh1 $2 Qxf3+ 32. Kg1 Qd5 $19) (31. Kf1 Nxf3 32. Rc1 Nxh2+ 33. Qxh2) 31... Kd8 {[%emt 0:04:44]} 32. Kf1 {[%emt 0:03:51]} Nxf3 {[%emt 0:02:37]} (32... Rh5 $142 33. Qg4 Nxf3) 33. Rc1 {[%emt 0:01:20][%csl Gc1][%cal Rh3c8]} Nd2+ {[%emt 0:02:47]} (33... Qxa2 $2 34. Qc8#) 34. Kg1 {[%emt 0:00:06][%csl Gc1][%cal Rh3c8] [#]} Nf3+ {[%emt 0:00:52]} (34... Qxa2 $2 35. Qc8#) (34... Bc5 $1 $19 {White must now prevent ...Nf3+.} 35. Qh8+ (35. Rc2 $2 Nf3+ 36. Kg2 Nh4+ {[%mdl 64] Discovered Attack (Double check)} 37. Kg1 Nf3+ 38. Kg2 Nd4+ 39. Kg1 Nf3+ $19) 35... Ke7 36. Qh7+ Kf6 37. Qh8+ Kf7 38. Qh7+ Ke6 39. Qh3+ Kf6 40. Qh8+ Kf7 41. Qh7+ Kf8 42. Qh8+ (42. b4 $2 Bxf2+ {[%mdl 64] Decoy} 43. Kxf2 Rf5+ $19) 42... Kf7) 35. Kf1 $1 $17 {[%emt 0:00:05][%csl Gc1][%cal Rh3c8]} (35. Kh1 $2 Bc5 36. Qg2 (36. Qh8+ $2 Ke7 $19) 36... Ke7 $19) 35... Nd2+ {[%emt 0:01:40]} (35... Qxa2 $2 36. Qc8#) (35... Nxh2+ $17 36. Qxh2 Rh5) 36. Kg1 $19 {[%emt 0:00:07][%csl Gh3][%cal Rc1c8] Really sharp!} Nf3+ {[%emt 0:03:12]} (36... Qxa2 $2 37. Qc8#) ({Black should play} 36... Bc5 $19 {And now ...Nf3+ would win.} 37. Qh8+ (37. Rc2 $2 Nf3+ 38. Kg2 Nh4+ {[%mdl 64] Discovered Attack (Double check)} 39. Kg1 Qd1+ 40. Qf1 Qxc2 $19) 37... Ke7 38. Qh7+ Kd8 39. Qh8+ Ke7 40. Qh7+ Ke8 41. Qh8+ Ke7) 37. Kf1 $1 {[%emt 0:00:06] An exciting game.   Weighted Error Value: White=0.21 (precise) /Black=0.48} ({Don't blunder} 37. Kh1 $2 Bc5 38. Qg2 (38. Qh8+ $2 Ke7 $19) 38... Ke8 $19) 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.9"]
[White "Vilimek, Vit"]
[Black "Pelc, Adam"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "2018"]
[BlackElo "1871"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 12,67,-5,-17,-20,-12,-8,0,33,-27,-15,-38,-9,-19,0,0,-14,-45,162,-16,-55,-52,29,-150,-108,-146,0,-143,0,-152,-132,-147,-100,-119,-93,-102,-87,-259,-251,-285,-201,-215,-222,-341,-318,-450,-396,-1962,-1867,-1818,-1317,-29990,-29990,-29990,-29991,-29991,-29992,-29992]} 1. e4 {[%emt 0:00:02]} c5 {[%emt 0:00:31]} 2. b4 {[%emt 0:00:06]} cxb4 {[%emt 0:01:01]} 3. a3 {[%emt 0:00:02]} e6 {[%emt 0:01:23]} 4. axb4 {[%emt 0:00:01]} Bxb4 {[%emt 0:03:23]} 5. c3 {[%emt 0:00:01]} Be7 {[%emt 0:00:25]} 6. d4 {[%emt 0:00:01]} d6 {[%emt 0:01:25]} 7. Bd3 {[%emt 0:00:06]} Nc6 {[%emt 0:04:25] B20: Sicilian: Unusual White 2nd moves.} 8. f4 {[%emt 0:00:16]} Nf6 {[%emt 0:25:09]} 9. Nf3 {[%emt 0:02:24] [#]} Ng4 $146 {[%emt 0:26:32] The position is equal.} ({Predecessor:} 9... b6 10. O-O Bb7 11. Nbd2 Qc7 12. e5 Nd5 13. Ne4 dxe5 14. fxe5 Na5 15. Bg5 Nxc3 16. Nxc3 Qxc3 17. Bxe7 Kxe7 {0-1 Sokac,M (2265)-Klekowski,M (2466) Speed Chess Q1 blitz 2022 (2)}) 10. Ng5 {[%emt 0:15:56]} (10. e5 $14) 10... e5 $11 {[%emt 0:11:11]} 11. h3 {[%emt 0:15:51]} Nh6 {[%emt 0:03:32]} 12. O-O {[%emt 0:06:04]} exf4 {[%emt 0:02:38]} 13. Nf3 {[%emt 0:05:20]} g5 {[%emt 0:01:39]} 14. h4 {[%emt 0:13:10]} Rg8 {[%emt 0:04:33]} (14... f6 $1 $15 {keeps the upper hand.}) 15. Nh2 $2 {[%emt 0:11:14]} (15. Nxg5 $18 Bxg5 16. hxg5) 15... gxh4 {[%emt 0:06:29]} 16. Qh5 {[%emt 0:03:41]} Bg5 {[%emt 0:01:32]} (16... Qb6 $15 17. Ra2 (17. Qxh6 Bh3 $17) 17... Ng4) 17. Bc4 $2 {[%emt 0:14:43] [#]} ({White should try} 17. Nd2 $1 $11) 17... h3 $1 {[%emt 0:00:59]} 18. Ra2 {[%emt 0:00:03]} (18. Na3 Qf6) 18... Na5 {[%emt 0:00:42]} (18... Qf6 $17 {[%cal Oc6d4] Hoping for ...Nxd4!} 19. Na3 Na5) 19. Bb5+ {[%emt 0:03:52]} (19. Bd5 $1 $11 {was the only way to keep the balance.}) 19... Nc6 {[%emt 0:00:58][%cal Ba5c6,Bc6d8,Bd8e6,Be6f4][%mdl 32]} 20. Bc4 $1 {[%emt 0:06:03] Wards off Be6} Qe7 {[%emt 0:00:53]} 21. Bxf4 {[%emt 0:01:05]} Bxf4 {[%emt 0:00:42]} ({Better is} 21... Bd7 22. Na3 (22. Bxd6 $2 Qxd6 23. Bxf7+ Ke7 $19) 22... Bxf4 23. Rxf4 Rg6) 22. Rxf4 $17 {[%emt 0:00:24]} Rg6 {[%emt 0:00:07]} 23. Raf2 {[%emt 0:00:32] [#]} Nd8 {[%emt 0:01:09]} 24. Qb5+ $2 {[%emt 0:00:54]} (24. Nd2 $17 {is a better defense.}) 24... Bd7 $19 {[%emt 0:00:17]} 25. Qb3 {[%emt 0:00:27]} Rxg2+ {[%emt 0:00:18]} 26. Rxg2 {[%emt 0:00:07]} hxg2 {[%emt 0:00:05]} 27. Qd1 {[%emt 0:00:54]} (27. Nf3 $142) 27... Ne6 {[%emt 0:00:55]} 28. Rf2 {[%emt 0:00:31]} (28. Bxe6 $142 Qxe6 29. Qd3) 28... O-O-O {[%emt 0:00:13] ...Ng5 would be deadly.} 29. Ra2 $2 {[%emt 0:00:34]} (29. Bxe6 Qxe6 30. Qe2) 29... Nf4 {[%emt 0:00:50]} 30. Qf3 {[%emt 0:00:28]} Qh4 {[%emt 0:00:08] ( -> ...Rg8)} 31. Rxa7 {[%emt 0:00:28]} Qe1+ {[%emt 0:00:14] Black mates.} 32. Nf1 {[%emt 0:00:33]} gxf1=Q+ {[%emt 0:00:11]} 33. Bxf1 {[%emt 0:00:34]} Rg8+ {[%emt 0:00:05]} 34. Kh2 {[%emt 0:00:07]} Qh4+ {An exciting game.   Weighted Error Value: White=0.76/Black=0.60} 0-1

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.10"]
[White "Sigut, Ondrej"]
[Black "Lang, Simon"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1804"]
[BlackElo "1974"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 14,84,19,5,8,0,29,0,21,0,44,-6,12,8,9,-10,-23,-32,-3,-64,-65,-64,-72,-64,-37,-67,-64,-122,-125,-133,-125,-281,-148,-187,-135,-187,-82,-76,-83,-161,-159,-187,-165,-150,-143,-195,-181,-222,-223,-244,-255,-271,-300,-304,-277,-443,118,107,354,361,381,377,375,373,313,0,160,150,150,159,164,-29977,-29978]} 1. e4 {[%emt 0:00:02]} c5 {[%emt 0:00:51]} 2. Nf3 {[%emt 0:00:22]} d6 {[%emt 0:00:54]} 3. Bb5+ {[%emt 0:00:58]} Nd7 {[%emt 0:01:33]} 4. d4 {[%emt 0:01:08]} Ngf6 {[%emt 0:01:18]} 5. Nc3 {[%emt 0:04:12]} cxd4 {[%emt 0:02:05]} 6. Qxd4 {[%emt 0:00:39]} e5 {[%emt 0:01:26]} 7. Qd3 {[%emt 0:00:46]} h6 {[%emt 0:01:20]} 8. O-O {[%emt 0:01:02]} a6 {[%emt 0:02:31] B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} 9. Bxd7+ {[%emt 0:01:11]} Bxd7 {[%emt 0:01:52]} 10. Be3 {[%emt 0:02:44]} Be7 {[%emt 0:02:40] The position is equal.} 11. a4 {[%emt 0:02:34] [#]} b6 $146 {[%emt 0:26:40]} ({Predecessor:} 11... O-O 12. Nd2 Bc6 13. Nc4 Nxe4 14. Nxe4 Bxe4 15. Qxe4 d5 16. Qxe5 dxc4 17. Rad1 Bf6 18. Qf5 {1-0 Pacher,M (2334)-Manik,M (2415) SVK-ch Blitz 2022 (7)}) 12. Rad1 {[%emt 0:06:49]} (12. Nd2 $14) 12... Be6 {[%emt 0:06:35]} 13. Rfe1 {[%emt 0:05:39]} Qc7 {[%emt 0:07:26]} (13... O-O {keeps more tension.} 14. Nh4 Nxe4 15. Ng6 fxg6 16. Qxe4 Qe8) 14. Nd2 {[%emt 0:08:37]} O-O {[%emt 0:04:41]} 15. f3 {[%emt 0:07:12]} Rfd8 {[%emt 0:05:43]} 16. Qe2 {[%emt 0:15:53]} (16. Nd5 $11 Bxd5 17. exd5) 16... d5 $15 {[%emt 0:08:09]} 17. exd5 {[%emt 0:03:42]} Nxd5 {[%emt 0:00:57]} 18. Nxd5 {[%emt 0:01:54]} Bxd5 {[%emt 0:01:34]} 19. c4 {[%emt 0:04:23]} Bc6 {[%emt 0:02:08]} 20. Qf2 {[%emt 0:02:35]} (20. b3 $15) 20... Rab8 $17 {[%emt 0:01:34]} (20... Bxa4 $6 21. Ra1 (21. Bxb6 Qc6 $11) 21... Qc6 22. b3 (22. Bxb6 $2 Rxd2 {[%mdl 64] Deflection} 23. Qxd2 Qxb6+ 24. Kh1 Qb3 $19) 22... Rxd2 23. Qxd2 (23. Bxd2 Bxb3 24. Be3 Bxc4 $15) 23... Bxb3 24. Rab1 Qxc4 25. Qb2 $11 (25. Bxb6 $2 Bb4 $17 {[%mdl 64] Skewer})) 21. b3 {[%emt 0:01:45]} Bb4 {[%emt 0:02:59] Black is more active.} 22. f4 $2 {[%emt 0:08:02]} (22. Qe2 $17 {was worth a try.}) 22... e4 {[%emt 0:10:27]} (22... Rd3 $1 $19 {And now ...exf4 would win.} 23. Re2 exf4 24. Qxf4 Qxf4 25. Bxf4 Rbd8) 23. f5 {[%emt 0:03:18]} f6 {[%emt 0:01:53]} ({Better is} 23... Rd3 $19 {White must now prevent ...Qd7.} 24. c5 bxc5) 24. Bf4 {[%emt 0:05:02]} (24. Rb1 $17) 24... Bd6 {[%emt 0:01:36]} (24... Qc8 $19 {has better winning chances. Hoping for ...Rb7.} 25. Bxb8 Bc5) 25. Bxd6 {[%emt 0:00:32]} Qxd6 {[%emt 0:01:12]} 26. Re3 {[%emt 0:07:40]} (26. Re2 $17) 26... Rb7 $19 {[%emt 0:01:24] aiming for ...Rbd7.} 27. Re2 {[%emt 0:01:40]} Qb4 {[%emt 0:00:45] Strongly threatening ...Rbd7.} 28. Rde1 {[%emt 0:01:07] [#]} Re7 $1 {[%emt 0:00:49][%cal Oe4e3] ...e3! would be deadly.} 29. Nf1 {[%emt 0:01:37]} (29. Qf4 $17 {was necessary.}) 29... Rd3 {[%emt 0:00:41]} 30. Re3 {[%emt 0:01:05]} Rxb3 {[%emt 0:00:58]} 31. Rxb3 {[%emt 0:00:40]} Qxb3 {[%emt 0:00:04]} 32. c5 {[%emt 0:00:54]} b5 {[%emt 0:00:44]} (32... Bxa4 33. cxb6 Rb7 34. Rxe4 $17) 33. axb5 {[%emt 0:00:17]} axb5 {[%emt 0:00:08]} (33... Qxb5 $2 34. Rc1 $19) (33... Bxb5 $2 34. Qe3 Qd5 35. g4 $19) 34. Qd4 {[%emt 0:00:28]} (34. Qf4 {might work better.} Re5 35. Qe3) 34... Qc4 $2 {[%emt 0:01:04]} ({Black should play} 34... Rd7 $19 35. Qa1 Qd5) 35. Qd6 $16 {[%emt 0:00:42][%csl LRc6,LRe7]} Rd7 {[%emt 0:00:46]} (35... Re5 $16) 36. Qxc6 $18 {[%emt 0:00:16]} Qd4+ {[%emt 0:00:08]} 37. Kh1 {[%emt 0:00:32]} Rd5 {[%emt 0:00:48]} 38. Qe6+ {[%emt 0:00:51]} (38. Qxb5 Rxf5 39. Rc1 Kh7) 38... Kh7 {[%emt 0:00:04][%cal Od4c3]} 39. Rxe4 $2 {[%emt 0:00:32]} ({Weaker is} 39. Qxe4 Qxe4 40. Rxe4 Rxf5 $18) (39. Ng3 $18 Qe3 40. Rg1 (40. Rxe3 $2 {gets mated.} Rd1+) 40... Rxc5 41. Nxe4) 39... Qxc5 $2 {[%emt 0:00:08] [#]} ({Black should try} 39... Qf2 $1 $11 40. h4 (40. Qxd5 $2 Qxf1#) (40. Re1 Re5 $11) 40... Qxf1+ 41. Kh2 Rxc5) 40. Re1 $1 $16 {[%emt 0:00:30]} Rxf5 {[%emt 0:00:29]} 41. Qe4 {[%emt 0:30:08]} Kg8 {[%emt 0:30:23]} 42. Qe3 $4 {[%emt 0:00:47][%mdl 8192] [#]} (42. Rd1 $18 Re5 43. Qb1) 42... Rxf1+ $1 {[%emt 0:00:13][%mdl 576] Remove Defender. A wild game.   Weighted Error Value: White=0.61/Black=0.58} 0-1

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.11"]
[White "Hladky, Tadeas"]
[Black "Svoboda, Daniel"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "1973"]
[BlackElo "1748"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 14,59,10,9,2,8,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,-1,-4,-7,-10,0,-11,9,9,10,32,18,0,0,-8,0,0,0,0,0,-8,0,0,0,-8,0,0,0,-16]} 1. e4 {[%emt 0:00:06]} c5 {[%emt 0:00:09]} 2. Nf3 {[%emt 0:00:07]} d6 {[%emt 0:00:22]} 3. Bb5+ {[%emt 0:00:07]} Nd7 {[%emt 0:00:42]} 4. d4 {[%emt 0:00:07]} cxd4 {[%emt 0:00:31]} 5. Qxd4 {[%emt 0:00:08]} a6 {[%emt 0:00:24]} 6. Bxd7+ {[%emt 0:00:08]} Bxd7 {[%emt 0:01:49]} 7. O-O {[%emt 0:00:10]} Nf6 {[%emt 0:00:39]} 8. Bg5 {[%emt 0:00:09]} e6 $1 {[%emt 0:01:05] 8...e6 is better than 8...h6. B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} 9. Nbd2 {[%emt 0:00:07]} Bc6 {[%emt 0:02:33]} 10. Nc4 {[%emt 0:00:16]} Bxe4 {[%emt 0:04:00]} 11. Bxf6 {[%emt 0:00:06]} Qxf6 {[%emt 0:00:45]} 12. Qxe4 {[%emt 0:00:06]} d5 {[%emt 0:00:19]} 13. Qe2 {[%emt 0:00:04] [#] Nb6 is the strong threat.} dxc4 {[%emt 0:01:10]} 14. Qxc4 {[%emt 0:00:06] Black must now prevent Qa4+.} Be7 {[%emt 0:03:53] [#]} 15. Rfd1 $146 {[%emt 0:00:32]} ({Predecessor:} 15. c3 O-O 16. Qe4 Rab8 17. Rfd1 Rfd8 18. Rxd8+ Bxd8 19. Rd1 Qe7 20. g3 Bc7 21. Kg2 {0-1 Bok,B (2596)-Vachier Lagrave,M (2796) Titled Tuesday intern op 7th Febr blitz 2017 (9)}) 15... O-O {[%emt 0:05:59]} 16. c3 {[%emt 0:00:17]} Rfd8 {[%emt 0:08:55]} 17. Qe4 {[%emt 0:03:01]} Bf8 {[%emt 0:11:27]} 18. h3 {[%emt 0:52:51]} h6 19. a4 Rxd1+ {[%emt 0:21:15]} 20. Rxd1 {[%emt 0:00:41]} Rd8 $1 21. Rxd8 {[%emt 0:05:23]} Qxd8 $11 {[%emt 0:00:18][%mdl 4096] Endgame KQB-KQN} 22. Qd4 {[%emt 0:08:46] Dodges Qd1+. The position is equal.} Qc7 {[%emt 0:15:41]} 23. Nd2 {[%emt 0:04:25]} b5 {[%emt 0:00:33]} 24. axb5 {[%emt 0:03:55]} axb5 {[%emt 0:08:58]} 25. Ne4 {[%emt 0:09:22]} Qf4 {[%emt 0:04:16]} 26. Nd2 {[%emt 0:01:41]} Qc7 {[%emt 0:00:24]} 27. Ne4 {[%emt 0:00:24]} Qf4 {[%emt 0:00:28]} 28. Nd2 {[%emt 0:00:15]} Qc7 {[%emt 0:00:32]} 29. Ne4 {[%emt 0:00:11]} Qf4 30. Nd2 {An uneventful encounter.   Weighted Error Value: White=0.03 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "CZE-ch U16 Open 2023"]
[Site "Teplice"]
[Date "2023.03.11"]
[Round "1.12"]
[White "Mrazek, Adam"]
[Black "Simunek, Jakub Simon"]
[Result "0-1"]
[ECO "D52"]
[WhiteElo "1745"]
[BlackElo "1970"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2023.03.09"]
[EventType "swiss"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 14,70,-2,7,29,-24,-25,-63,-34,-63,-51,-38,-53,-52,-58,-64,-7,-10,-14,-30,10,-46,-22,-40,-39,-129,-47,-116,-118,-161,-184,-257,-259,-262,-261,-263,-159,-329,-331,-301,-300,-281,-275,-254,-268,-323,-302,-576,-586,-588,-538,-728,-585,-578,-570,-558,-558,-551,-551]} 1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Qc2 Ne4 8. cxd5 Bb4 {[%cal Re4c3] D52: Queen's Gambit Declined: Cambridge Springs Variation.} 9. Rc1 (9. dxe6 $142 Nxc3 10. exd7+ Bxd7 11. Bh4 (11. bxc3 Bxc3+ 12. Kd1 Bxa1 $17)) 9... exd5 $11 {[#]} 10. Qb3 $146 ({Predecessor:} 10. a3 Bxc3+ 11. bxc3 Qxa3 12. Bh4 O-O 13. Bd3 Re8 14. O-O Nf8 15. Nd2 Bf5 16. Nb1 {0-1 Roubalik,J (2395)-Vovk,Y (2577) SVK-chT 1920 2019 (7.6)}) 10... O-O {Black is slightly better.} (10... c5 $5 {[%cal Rc5c4]} 11. a3 (11. Qxd5 $2 Bxc3+ 12. bxc3 Nxc3 $19) 11... Bxc3+ 12. bxc3 c4 $15) 11. Bf4 c5 12. a3 Bxc3+ 13. bxc3 c4 14. Qb4 Qa6 (14... Qd8 $15) 15. Be2 Re8 16. a4 Nb8 17. O-O ({White should try} 17. Ne5 $11) 17... Bd7 (17... Nc6 $5 {[%cal Rc6b4]} 18. Qb5 Qxb5 19. axb5 Na5 $11) 18. Bxb8 (18. Ne5 {keeps more tension.} Nc6 19. Nxc6 Qxc6 20. a5) 18... Raxb8 19. a5 (19. Bd1 $15) 19... Bg4 (19... b6 $17 20. Bd1 Qxa5) 20. Rfd1 ({Better is} 20. h3 $15 Bh5 21. Ra1) 20... b6 $17 {Black is more active.} 21. Ra1 bxa5 22. Qxa5 (22. Qa3 $142) 22... Qxa5 $19 23. Rxa5 Nxc3 24. Re1 {White is weak on the light squares} Rb2 25. Kf1 {This costs White the game.} (25. Bf1 $17 {was the only defense.}) 25... Reb8 {...Nxe2 would be deadly.} 26. h3 Bf5 27. Bxc4 dxc4 {[%cal Bd5c4,Bc4c3][%mdl 32]} 28. Rxf5 Ne4 {[#] Wards off Rc5. And now ...c3 would win.} 29. Ne5 c3 ({Inferior is} 29... Nd6 30. Rf3 $17) 30. Nd3 $2 (30. Rxf7 $2 {perishes.} Nd2+ 31. Ke2 (31. Kg1 $2 c2 $19) 31... Nc4+ 32. Kf1 Nxe5 $19) (30. g3 {keeps fighting.}) 30... Rd2 {Black is clearly winning.} 31. Nc1 Rbb2 32. Kg1 Nxf2 33. Rc5 {[%cal Rc5c8]} g6 {Threatens to win with ...Ne4.} 34. Rxc3 Ne4 $1 {[%csl LRc3,LRg2][%mdl 64] [#] Discovered Attack} 35. Rc8+ Kg7 {Weighted Error Value: White=0.56/Black=0.25 (precise)} 0-1

