[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.11"]
[White "Sharma Isha"]
[Black "Tancsa, Tamas"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2169"]
[BlackElo "2193"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,65,25,38,17,17,27,17,23,16,0,0,0,5,0,23,13,8,13,35,31,50,50,50,64,142,140,127,133,193,173,173,164,202,171,206,197,295,191,441,316,410,355,491,469,565,562,549,461,861,845,987,970,1262,1249,1182,1043,29991,29992]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. O-O d6 6. d4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack} (6. c3 g6 7. a4 Bg7 8. Re1 O-O 9. Nbd2 Re8 10. Nf1 Be6 11. Ng3 d5 12. Bb5 Nd7 13. Bd2 a6 14. Bxc6 bxc6 {½-½ (41) Karjakin,S (2750)-Rapport,R (2747) Saint Louis 2019}) 6... Bg4 7. dxe5 dxe5 8. Nbd2 {The position is equal.} Qd7 $146 ({Predecessor:} 8... Bd6 9. c3 O-O 10. Be2 Nb8 11. Nc4 Re8 12. Qc2 Nbd7 13. Be3 Bc5 {½-½ (35) Cherniaiev,T (2112)-Vakulenko,A (2167) Lvov 2019}) 9. Bb5 Bd6 10. c3 O-O 11. h3 Bh5 12. Re1 a6 13. Ba4 b5 14. Bc2 Rad8 15. Nf1 Bc5 16. Qe2 g5 (16... Bb6 $14) 17. Ng3 $16 Bg6 18. a4 Rb8 (18... Bb6 $16 {was necessary.} 19. axb5 axb5 20. Qxb5 Nd4 21. Qxd7 Nxf3+ 22. gxf3 Rxd7) 19. axb5 axb5 20. b4 {Played: Ra1-a6} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.12"]
[White "Marszalek, Maciej"]
[Black "Vetokhin, Savva"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2314"]
[BlackElo "2113"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,82,25,32,0,37,29,52,0,13,-3,1,-45,-28,-36,-2,-21,22,-14,5,0,0,0,21,21,13,-9,0,-16,0,-18,-16,-18,0,0,0,-8,0,0,0,0,0,-39,0,0,0,0,0,0,35,22,116,42,39,0,120,0,39,0,149,129,129,78,73,78,86,10,13,0,85,0,20,0,92]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 a6 6. O-O Nc6 7. Qc2 {E04: Open Catalan: 5 Nf3} (7. Nbd2 b5 8. b3 Rb8 9. Bb2 cxb3 10. Nxb3 Be7 11. Rc1 Bb7 12. Ne1 Na7 13. Bxb7 Rxb7 14. Nd3 O-O {½-½ (41) Vidit,S (2722)-Nakamura,H (2741) Kolkata 2019}) 7... b5 8. Ne5 $1 {[%cal Re5c6]} Nxe5 ({Wrong is} 8... Nxd4 $2 9. Qd1 $18) 9. Bxa8 {White is slightly better.} Qxd4 10. Bf4 $146 ({Predecessor:} 10. Be3 Qd7 11. Rd1 Bd6 12. a4 {½-½ (12) Rajkovic,D (2490)-Velimirovic,D (2500) Subotica 1984}) 10... Bd6 11. Qc3 (11. a4 {keeps more tension.} Qb6 12. Nc3 Ned7 13. axb5 axb5 14. Be3) 11... Qxc3 $1 12. Nxc3 Ng6 13. Bg5 Be5 14. Bc6+ Ke7 15. Rfd1 h6 16. Be3 Bd7 17. Bxd7 Nxd7 18. Rd2 Nf6 19. Rad1 {Black should prevent Bc5+.} Bd6 20. Bd4 e5 21. Be3 Ke6 22. f3 Ne7 23. Bf2 Nc6 24. Kg2 Bb4 25. Rc2 Rb8 26. b3 Bxc3 (26... Na5 {with more complications.} 27. bxc4 Nxc4 28. Na4 Nd5 29. Kg1 f5) 27. Rxc3 Na5 28. Rcc1 Nd5 $1 29. e4 Nb6 (29... Nb4 $5 {[%cal Rb4a2]} 30. Be1 c5 $11) 30. f4 $36 {[%mdl 3072] White has compensation. White has some pressure.} Rb7 (30... Rc8 $11) 31. Be1 (31. bxc4 $16 Naxc4 32. Rd8) 31... Nc6 $14 32. Bf2 (32. f5+ $14 Kf6 33. bxc4 Nxc4 34. Bf2) 32... Na5 $1 $16 33. Be1 (33. bxc4 $16 Naxc4 34. Rd8) 33... Nc6 $14 34. Bf2 Nb4 (34... Na5 $1 $11) 35. f5+ $16 Kf6 36. Bxb6 (36. bxc4 $142 $1 {Hoping for Bxb6.} Nxa2 37. Rc2) 36... Rxb6 37. bxc4 Nxa2 {[#] KRR-KRN} 38. Rc2 ({White should play} 38. c5 $1 $16 {[%cal Rc5b6]} Rc6 39. Rc2) 38... Nb4 $11 39. Rcc1 (39. Rc3 $11 Nc6 40. cxb5 axb5 41. Rdc1) 39... Na2 $1 $16 {[%cal Ra2c1] [#]} 40. Rc2 (40. c5 $1 $16 {[%cal Rc5b6]} Rb8 41. Ra1) 40... Nb4 $11 41. Rcc1 (41. Rc3 $11 Nc6 42. cxb5 axb5 43. Rdc1) 41... Na2 $1 {Accuracy: White = 34%, Black = 51%.} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.13"]
[White "Strebkovs, Andrejs"]
[Black "Jurek, Josef"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2278"]
[BlackElo "2235"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,91,2,18,0,30,26,87,83,94,95,89,91,93,91,90,68,70,73,79,66,86,87,77,80,89,70,84,68,75,58,87,82,98,63,70,77,81,80,108,58,77,52,52,58,64,43,52,40,57,35,36,37,178,81,287,49,34,58,52,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6 8. Bc3 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7 11. Nd2 O-O 12. O-O Nf6 13. Re1 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} Rb8 (13... c5 14. cxd5 Nxd5 15. Bb2 cxd4 16. Bxd4 Bb4 17. Qc2 Rc8 18. Qb2 Bc3 19. Bxc3 Nxc3 20. Ne4 Nxe4 21. Bxe4 {½-½ (61) Ponomariov,R (2739)-Ivanchuk,V (2739) Moscow 2009}) 14. e4 b5 (14... dxe4 $11 {keeps the balance.} 15. Nxe4 Bb7) 15. e5 $16 {White is better.} Nd7 {[%cal Rb5c4] [#]} 16. c5 $146 ({Predecessor:} 16. cxd5 cxd5 17. a3 b4 18. Bxb4 Bxb4 19. axb4 Qb6 20. Re3 Rfc8 21. Nf3 Rc6 {0-1 (50) Vokac,M (2523)-Berezjuk,S (2343) Pardubice 2000}) 16... b4 17. Bb2 Bd3 18. Nf1 Bg6 19. Ne3 f6 20. f4 fxe5 21. fxe5 Bg5 22. h4 Bxe3+ 23. Rxe3 Rb7 24. a3 bxa3 25. Rxa3 Qe7 26. Qe1 Bh5 27. b4 Bg4 28. Bc3 Qf7 29. Ra2 Qg6 30. Qa1 Qf5 31. Qf1 Qg6 32. Rf2 Rxf2 33. Qxf2 Nf8 34. Re1 Rf7 35. Qe3 $1 Qc2 36. Rf1 Rxf1+ 37. Bxf1 {Hoping for b5.} Bf5 (37... Ng6 $14) 38. Qd2 (38. b5 $18) 38... Qb1 $2 {[#]} (38... Qa4 $16) 39. Kf2 $2 ({Only move:} 39. b5 $1 $18 {[%mdl 512]}) 39... Ng6 $14 40. Qb2 {Qxb1 is the strong threat.} Qe4 41. h5 (41. Qe2 $14 Qb1 42. b5 cxb5 43. c6) 41... Nf4 $11 {The position is equal.} 42. gxf4 Qxf4+ 43. Kg1 Qe3+ 44. Kh2 $1 Qf4+ {[%mdl 64] Double Attack} 45. Kg1 Qe3+ 46. Kh2 $1 {Accuracy: White = 44%, Black = 40%.} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.14"]
[White "Hilwerda, Jonas"]
[Black "Vatsal Singhania"]
[Result "0-1"]
[ECO "B57"]
[WhiteElo "2230"]
[BlackElo "2230"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,114,35,0,0,-6,-6,-6,0,-6,0,-69,-71,-58,-52,-108,-49,-95,-47,-76,-83,-141,-134,-127,-110,-199,-180,-215,-184,-175,-185,-202,-126,-147,-101,-102,-81,-102,-8,-11,-18,-18,-24,-41,-14,-13,-14,-20,-21,-58,-28,-385,-381,-352,-358,-300,-125,-125,-125,-125,-125,-125,-125,-126,-128,-121,-118,-167,-149,-151,-130,-197,-204,-204,-201,-233,-235,-230,-232,-232,-233,-218,-208,-625,-636,-29975,-29976,-29975,-29976,-29977,-29976,-29974,-29975,-29977,-29978,-29978,-29979,-29981,-29982]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nb3 a6 8. O-O e6 9. a4 Qc7 10. Be3 b6 {B57: Classical Sicilian: Sozin with 6...Qb6} 11. f3 Be7 12. Qd2 O-O {The position is equal.} 13. Qf2 Rb8 14. g4 $146 ({Better is} 14. Nc1 $11) ({Predecessor:} 14. Bd3 Nb4 15. Qg3 e5 16. Rfe1 Be6 17. Nd2 {0-1 (50) Cabrera Pino,A (2415)-Della Morte,P (2187) Yucay 2001}) 14... Nb4 $15 15. Bd3 Nd7 16. a5 (16. Nd4 $15) 16... b5 (16... bxa5 $1 $17 17. Nxa5 Ne5) 17. Rfc1 Nc5 18. Be2 Bb7 19. Nxc5 (19. Nd4 $142) 19... dxc5 $17 20. f4 Nc6 21. f5 {[#]} (21. Bf1 $17) 21... Nd4 $1 $19 {[%mdl 512]} 22. Bf3 (22. Bxd4 cxd4) 22... Nxf3+ 23. Qxf3 Rbd8 24. Bf4 Bd6 25. Bxd6 Qxd6 26. Rd1 Qe5 27. fxe6 fxe6 ({Black should play} 27... Rxd1+ $17 28. Rxd1 fxe6 {[%mdl 64] Discovered Attack}) 28. Rxd8 $11 Rxd8 29. Rf1 {Threatening mate with Qf7+.} Qc7 30. Ne2 Qe7 31. Ng3 Bc6 32. Qf4 h6 33. Qe5 Qd6 34. Qh5 $2 {[%mdl 8192]} (34. Qxd6 $11 {and White has nothing to worry.} Rxd6 35. Kg2) 34... Qd4+ $1 $19 35. Kg2 Bxe4+ {[%mdl 64] Double Attack} ({Stronger than} 35... Qxb2 36. Kh3 $11) 36. Kh3 {aiming for Qf7+.} Qe3 (36... Kh7 $19 {Hoping for ...Qe3.} 37. Nxe4 Qxe4) 37. Qf7+ $17 Kh7 {Strongly threatening ...Rd2.} 38. Qf2 Qxf2 39. Rxf2 {[%mdl 4096] Endgame KRB-KRN} Bg6 40. Re2 Rd6 41. c3 Kg8 42. Kg2 Kf7 43. Kf2 Rd5 44. h4 (44. Ke1 $17 {might work better.}) 44... b4 $1 $19 45. Nf1 Bd3 $1 46. Re3 Bxf1 47. Kxf1 {KR-KR} Rd1+ $1 48. Ke2 {[#]} Rb1 $1 49. Re5 Rxb2+ 50. Kd3 $2 (50. Kd1) 50... Rb3 51. Rxc5 {[#] and the idea Rc7+ leaves White hopeful.} Rxc3+ $1 {Black mates.} 52. Rxc3 bxc3 53. Kxc3 {KP-KP} e5 54. Kc4 Ke6 55. Kc5 g6 56. Kc4 Kd6 57. h5 g5 {Accuracy: White = 34%, Black = 72%.} 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.15"]
[White "Gorbatov, Alexej"]
[Black "Nguyen, Alex Dac-Vuong"]
[Result "1-0"]
[ECO "A32"]
[WhiteElo "2355"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,91,-3,-1,-18,-4,-4,22,20,18,14,42,17,0,17,10,14,18,14,9,13,78,78,81,83,73,75,106,40,81,39,65,60,64,54,117,115,191,165,247,247,292,285,285,302,272,296,679,655,845,783,825,825,811,788,787,810,791,789,981,745,949,940,4694,933,1209,1079,1071,1020,1066,1105,935,870,757,756,29981,29982,29984,29985,29984,29984,29986,29987,29992,29993]} 1. Nf3 c5 2. c4 Nf6 3. d4 cxd4 4. Nxd4 e6 5. a3 Be7 (5... b6 6. Nb5 d6 7. Bf4 e5 8. Bg5 Bb7 9. Nd2 Nbd7 10. e4 Be7 11. Be2 O-O 12. O-O Nc5 13. f3 {0-1 (61) Usmanov,V (2450)-Tomashevsky,E (2705) St Petersburg 2018}) 6. Nc3 {A32: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6} d5 7. Bf4 $146 ({Predecessor:} 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. Qc2 Bd7 10. e3 Nc6 11. Nxc6 Bxc6 12. e4 Qxe4+ 13. Qxe4 Bxe4 {½-½ (56) De la Asuncion Ortiz,A (1774)-Corredor Rengifo,L (2095) Cartagena 2019}) 7... Nbd7 {[#] Hoping for ...e5.} 8. Ndb5 {Bc7 is the strong threat.The position is equal.} e5 9. cxd5 {aiming for d6.} Bc5 10. Bg3 a6 11. b4 axb5 12. bxc5 Qa5 13. Rc1 $1 {White wants to play e3.} Ne4 14. Qb3 Nexc5 (14... O-O $11 {remains equal.}) 15. Qb4 $16 ({Of course not} 15. Qxb5 Qxa3 16. Qb1 b6 $11) 15... Qxa3 16. Qxa3 Rxa3 17. Nxb5 Rb3 18. e3 (18. e4 $1 $16) 18... f6 19. Bc4 Rb4 20. O-O Nb6 21. Be2 Nba4 (21... Ne4 $14) 22. f4 $36 {[%mdl 2048] White has strong initiative.} e4 (22... exf4 $16 23. Rxf4 (23. Bxf4 Bd7 $16) 23... Rxf4 24. Bxf4 b6 25. Nd6+ Ke7) 23. f5 $18 Bd7 (23... h5 {might work better.} 24. Nd4 b6) 24. Bh5+ Ke7 25. Bd6+ {[%mdl 64] [#] Double Attack} Kd8 26. Nd4 {Threatens to win with Ne6+.} ({Inferior is} 26. Bxc5 Nxc5 27. Rxc5 Bxb5 $11) 26... b6 27. Ne6+ Bxe6 $2 (27... Kc8 28. Nxg7 Bb5) 28. dxe6 Rb3 29. Rfd1 {Strongly threatening Bf8+.} Rd3 30. Be2 Rxd6 31. Rxd6+ Ke7 32. Rc6 g6 33. g4 Rg8 34. Kh1 gxf5 35. gxf5 Rg5 36. Rg1 (36. Rd1 $142 Nd3 37. Bxd3 exd3 38. Rxd3) 36... Rxg1+ 37. Kxg1 {[%mdl 4096] Endgame KRB-KNN} Nc3 38. Bc4 N5a4 39. Rc7+ Ke8 40. Ra7 Nb2 41. Ba6 {And now Bb7 would win.} Nbd1 42. Bb7 {White mates.} Ke7 43. Bxe4+ Kd6 44. Bf3 Nxe3 45. e7 Nxf5 46. e8=Q {Accuracy: White = 74%, Black = 36%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.11"]
[White "Tancsa, Tamas"]
[Black "Nguyen, Alex Dac-Vuong"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2193"]
[BlackElo "2401"]
[Annotator "RC"]
[PlyCount "156"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:15]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:10]} a6 {[%emt 0:00:00]} 5. c4 {[%emt 0:00:18]} Nf6 {[%emt 0:00:11]} 6. Nc3 {[%emt 0:00:32]} Bb4 {[%emt 0:00:07]} 7. Qf3 {[%emt 0:00:37]} Bxc3+ {[%emt 0:00:57]} 8. bxc3 {[%emt 0:00:28]} d6 {[%emt 0:00:26]} 9. Ba3 {[%emt 0:02:03]} O-O {[%emt 0:03:02]} 10. Nb3 {[%emt 0:05:57]} e5 {[%emt 0:02:25]} 11. Be2 {[%emt 0:06:50]} Qc7 {[%emt 0:12:01]} 12. Rd1 {[%emt 0:07:56]} Rd8 {[%emt 0:00:52]} 13. O-O {[%emt 0:00:51]} b6 {[%emt 0:15:19]} 14. Qe3 {[%emt 0:00:52]} Bb7 {[%emt 0:00:38]} 15. f3 {[%emt 0:01:12]} a5 {[%emt 0:12:58]} 16. g4 {[%emt 0:05:49]} Na6 {[%emt 0:00:49]} 17. Rd2 {[%emt 0:11:59]} Nc5 {[%emt 0:01:52]} 18. Rfd1 {[%emt 0:00:50]} Bc6 {[%emt 0:01:30]} 19. Nxc5 {[%emt 0:01:42]} dxc5 {[%emt 0:01:31]} 20. Bc1 {[%emt 0:04:38]} Ba4 {[%emt 0:01:33]} 21. Rxd8+ {[%emt 0:01:06]} Rxd8 {[%emt 0:00:05]} 22. Rxd8+ {[%emt 0:00:37]} Qxd8 {[%emt 0:00:02]} 23. Qd3 {[%emt 0:00:30]} Qxd3 {[%emt 0:04:05]} 24. Bxd3 {[%emt 0:00:18]} Ne8 {[%emt 0:06:15]} 25. f4 {[%emt 0:09:51]} Bd1 {[%emt 0:13:00]} 26. h3 {[%emt 0:09:40]} Nc7 {[%emt 0:03:47]} 27. fxe5 {[%emt 0:02:52]} Ne6 {[%emt 0:00:16]} 28. Kf2 {[%emt 0:00:14]} g5 {[%emt 0:00:34]} 29. Ke1 {[%emt 0:01:16]} Ba4 {[%emt 0:00:05]} 30. Be3 {[%emt 0:01:47]} Kg7 {[%emt 0:00:40]} 31. Kd2 {[%emt 0:02:30]} Kg6 {[%emt 0:01:17]} 32. Ke1 {[%emt 0:00:43]} h6 {[%emt 0:02:28]} 33. Kd2 {[%emt 0:02:20]} Kg7 {[%emt 0:01:44]} 34. Ke1 {[%emt 0:00:12]} Bd7 {[%emt 0:01:37]} 35. Ke2 {[%emt 0:01:59]} Nd8 {[%emt 0:06:24]} 36. Bf2 {[%emt 0:01:59]} Nc6 {[%emt 0:00:55]} 37. Bg3 {[%emt 0:01:03]} Be6 {[%emt 0:00:04]} 38. Ke3 {[%emt 0:00:15]} a4 {[%emt 0:03:36]} 39. a3 {[%emt 0:04:26]} Na5 {[%emt 0:00:11]} 40. Bh2 {[%emt 0:01:34]} Kf8 {[%emt 0:00:51]} 41. Bg3 {[%emt 0:30:53]} Ke7 {[%emt 0:30:13]} 42. Bh2 {[%emt 0:00:47]} Ke8 {[%emt 0:00:00]} 43. Bg3 {[%emt 0:00:00]} Kf8 {[%emt 0:00:00]} 44. Bh2 {[%emt 0:00:00]} Kg7 {[%emt 0:00:00]} 45. Bg3 {[%emt 0:00:00]} Kh7 {[%emt 0:00:00]} 46. Bh2 {[%emt 0:00:00]} Kg6 {[%emt 0:00:00]} 47. Be2 {[%emt 0:00:00]} Bxc4 {[%emt 0:00:00]} 48. e6 {[%emt 0:00:00]} fxe6 {[%emt 0:00:00]} 49. Bd3 {[%emt 0:00:00]} b5 {[%emt 0:05:57]} 50. Bd6 {[%emt 0:00:00]} Bxd3 {[%emt 0:00:04]} 51. Kxd3 {[%emt 0:00:00]} c4+ {[%emt 0:01:36]} 52. Kc2 {[%emt 0:00:00]} Nc6 {[%emt 0:00:27]} 53. Bc7 {[%emt 0:00:00]} h5 {[%emt 0:01:09]} 54. Kd2 {[%emt 0:00:00]} hxg4 {[%emt 0:00:44]} 55. hxg4 {[%emt 0:00:00]} Ne7 {[%emt 0:00:39]} 56. Ke3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:03]} 57. Kd2 {[%emt 0:00:00]} Kf6 {[%emt 0:00:03]} 58. Bb6 {[%emt 0:00:00]} Ke5 {[%emt 0:00:28]} 59. Ke3 {[%emt 0:00:00]} Kf6 {[%emt 0:00:01]} 60. Kd2 {[%emt 0:00:00]} Ke5 {[%emt 0:01:11]} 61. Ke3 {[%emt 0:00:00]} Kd6 {[%emt 0:00:07]} 62. Ke2 {[%emt 0:00:00]} Ke7 {[%emt 0:01:46]} 63. Be3 {[%emt 0:04:02]} Kf6 {[%emt 0:00:11]} 64. Bb6 {[%emt 0:00:10]} Kf7 {[%emt 0:01:09]} 65. Bc7 {[%emt 0:01:51]} Ke7 {[%emt 0:01:06]} 66. Bb6 {[%emt 0:00:15]} Ne5 {[%emt 0:00:20]} 67. Be3 {[%emt 0:00:08]} Nxg4 {[%emt 0:00:04]} 68. Bxg5+ {[%emt 0:00:19]} Kd6 {[%emt 0:00:15]} 69. Bf4+ {[%emt 0:00:53]} Kc6 {[%emt 0:00:29]} 70. Kf3 {[%emt 0:00:40]} Nf6 {[%emt 0:00:05]} 71. Ke3 {[%emt 0:00:58]} Nd7 {[%emt 0:00:20]} 72. Kd4 {[%emt 0:03:09]} e5+ {[%emt 0:01:09]} 73. Bxe5 {[%emt 0:00:10]} Nxe5 {[%emt 0:00:01]} 74. Kxe5 {[%emt 0:00:13]} b4 {[%emt 0:00:03]} 75. cxb4 {[%emt 0:02:53]} c3 {[%emt 0:00:05]} 76. b5+ {[%emt 0:00:10]} Kxb5 {[%emt 0:00:09]} 77. Kd6 {[%emt 0:00:15]} c2 {[%emt 0:00:06]} 78. e5 {[%emt 0:00:04]} c1=Q 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.12"]
[White "Vatsal Singhania"]
[Black "Gorbatov, Alexej"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2230"]
[BlackElo "2355"]
[Annotator "TA"]
[PlyCount "160"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,160,30,27,81,28,24,20,25,20,20,5,25,8,30,26,38,31,54,33,36,39,45,42,51,33,53,21,59,63,76,38,80,67,91,87,102,87,194,20,90,101,98,85,100,98,96,87,94,85,86,89,108,109,107,103,105,102,118,50,129,128,123,127,109,79,70,62,62,61,66,18,18,25,23,18,27,25,25,27,84,86,100,85,121,118,115,112,124,137,89,0,0,0,0,0,0,6,6,6,6,6,6,6,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. Nc3 g6 4. h3 Bg7 5. Nf3 dxe4 6. Nxe4 Nh6 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6} (6... Nf6 $11 7. Nxf6+ Bxf6) (6... Nf6 7. Nxf6+ exf6 8. Bc4 O-O 9. O-O a5 10. a4 Nd7 11. Bf4 Nb6 12. Bb3 Nd5 13. Bh2 Be6 14. Re1 h5 15. Nd2 f5 16. c3 Bh6 17. Nc4 {1-0 (45) Nepomniachtchi,I (2773)-Wei,Y (2736) Moscow 2019}) 7. Bxh6 (7. c3 $16) 7... Bxh6 $11 8. Bc4 O-O 9. O-O Nd7 10. Bb3 $146 ({Predecessor:} 10. Re1 Nb6 11. Bb3 Nd5 12. Ne5 Bf5 13. h4 Qc7 14. Ng3 {1-0 (33) Esen,B (2570)-Gorbatov,A (2368) St Petersburg 2015}) 10... Bg7 (10... Nf6 $5 {[%cal Rf6e4]} 11. Re1 Nxe4 12. Rxe4 e6 $11) 11. Re1 Nf6 12. Qe2 Nxe4 13. Qxe4 Bf6 14. Ne5 Bf5 15. Qf4 Qd6 16. Rad1 Rad8 17. Qf3 Bd7 18. c4 {Strongly threatening Nxf7!} Be8 19. c5 Qc7 20. Qe4 Bg7 21. h4 Kh8 22. h5 gxh5 23. Nf3 Rd7 (23... f6 $16 {is a better defense.}) 24. Qf5 $2 ({White must play} 24. Ng5 $1 $18 {[%csl Gg5][%cal Re4h7]} f5 25. Qf3) 24... e6 (24... f6 $1 $11) 25. Qxh5 $16 Qf4 {[%cal Rg7d4]} 26. g3 Qh6 27. Qxh6 Bxh6 28. Ne5 Re7 29. Kg2 Bg7 30. Nc4 f5 31. Nd6 Bh5 32. f3 e5 33. dxe5 $1 Bxe5 34. Nc4 (34. Nxb7 $1 $16 {And now Nd8 would win.} Rfe8 35. Na5 Bxb2 36. Rxe7 Rxe7 37. Rd8+ (37. Nxc6 Re2+ 38. Kf1 Re3 $16) 37... Re8 38. Nxc6) 34... Rfe8 (34... Bf6 $14) 35. Nxe5 Rxe5 36. Rxe5 Rxe5 {[%mdl 4096] Endgame KRB-KRB} 37. Kf2 Re7 38. Bc2 Bg6 39. Rd6 Kg7 40. Bb3 Bf7 41. Bxf7 Kxf7 $11 {KR-KR} 42. b4 Kg7 43. a4 a6 44. Kg2 Kf7 {[#]} (44... Rf7 $11 {keeps the balance.}) 45. Kh3 $1 $16 Ke8 46. Rf6 Rf7 47. Re6+ Kf8 48. Kh4 Rd7 49. Rf6+ Kg7 {[#]} 50. Rd6 ({But not} 50. Rxf5 $6 Rd4+ 51. g4 Rxb4 $11) (50. Kg5 $1 $16) 50... Rxd6 $1 $11 {The position is equal.} 51. cxd6 {d7 is the strong threat. KP-KP} Kf6 {White must now prevent ...a5!} 52. a5 Ke6 53. Kg5 Kxd6 54. Kxf5 c5 $1 {[%cal Rc5b4]} 55. bxc5+ Kxc5 {K3P-K3P} 56. Ke6 {Hoping for f4.} b5 $1 {[%cal Rb5b4] Threatens to win with ...b4.} 57. axb6 Kxb6 {KPP-KPP} 58. f4 a5 59. f5 a4 60. f6 {Intending Kd5 and mate.} a3 61. f7 a2 62. f8=Q {White wants to mate with Qf2+.} a1=Q {KQ-KQ} 63. Qd6+ Kb5 64. Kf7 Qa7+ 65. Kf6 Kc4 66. Qe6+ Kd3 67. Qf5+ Ke2 68. g4 Qb7 69. Kg5 Qg7+ 70. Kh5 Ke3 71. g5 (71. Qe6+ {looks sharper.} Kf4 72. Kh4 Qg5+ 73. Kh3 h5 74. Qd6+) 71... Qc7 72. Kh6 Qh2+ 73. Kg7 Qc7+ 74. Kh8 Qe7 75. Qf6 Qd7 76. Kg8 Ke4 77. Kf8 Qc7 78. Kg8 Qd7 79. Kh8 Qc7 80. Qh6 Kf5 {Accuracy: White = 56%, Black = 67%.} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.13"]
[White "Jurek, Josef"]
[Black "Hilwerda, Jonas"]
[Result "*"]
[WhiteElo "2235"]
[BlackElo "2230"]
[Annotator "ChessBase"]
[PlyCount "17"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. Bd3 c5 5. dxc5 Bxc5 6. Ngf3 Nc6 7. O-O Nf6 8. Qe2 Nb4 9. e5 *

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.13"]
[White "Vetokhin, Savva"]
[Black "Strebkovs, Andrejs"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2113"]
[BlackElo "2278"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,92,41,12,23,21,16,27,22,16,19,16,32,16,75,-34,-46,-31,-38,-61,-53,-67,6,0,0,0,0,0,0,-12,-6,-3,0,0,0,-6,-6,-2,0,-28,-28,-31,-29,-146,-80,-134,-133,-135,-88,-135,-135,-127,-135,-125,-119,-162,-160,-162,-160,-136,-157,-135,-129,-248,-239,-373,-239,-460,-465,-2593,-2127,-12837,-11241,-12844,-12844,-29983,-29984,-29984,-29985,-29985,-29986]} 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Bd3 c5 5. dxc5 Bxc5 6. Ngf3 Nc6 7. O-O Nf6 8. Qe2 Nb4 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5} 9. e5 (9. Nb3 Be7 10. e5 Nd7 11. Nfd4 Qc7 12. Bf4 Nf8 13. a3 Nxd3 14. cxd3 Ng6 15. Bg3 Qb6 16. a4 {0-1 (36) Solomunovic,I (2399)-Nikolic,P (2584) Valjevo 2018}) 9... Nxd3 10. cxd3 Nd7 {White has an edge.} 11. Nb3 Be7 12. Be3 O-O 13. Rac1 f6 $146 (13... b6 $11 {keeps the balance.}) ({Predecessor:} 13... b6) 14. Nc5 (14. exf6 $16 Bxf6 15. Bf4) 14... Nxe5 $15 15. Nxe5 fxe5 16. f4 b6 17. Nb3 Bd6 (17... exf4 $15 18. Bxf4 Bd7) 18. fxe5 $11 Rxf1+ 19. Rxf1 Bxe5 20. Qf2 {White wants to mate with Qf7+.} Qf6 21. Bxb6 Qxf2+ 22. Rxf2 Rb8 23. Ba7 Rb7 24. Bc5 {[%csl Gc5][%cal Rf2f8]} Bf6 25. d4 Bd7 26. Na5 Rc7 27. b4 Bb5 {...Bxd4! is the strong threat.} 28. Rd2 (28. g3 $11) 28... h6 (28... Bg5 $142 29. Rd1 Be3+ 30. Kh1 Rf7) 29. Nb3 {[#]} (29. Kh1 $142) 29... Bg5 $1 $17 30. Rd1 Be3+ 31. Kh1 Rf7 32. Bd6 Rf2 {And now ...Bf1 would win.} 33. Re1 Bg5 34. a3 Ra2 35. Nc5 Rxa3 36. Nxe6 {[#]} Bd2 $1 {[%cal Rd2e1]} 37. Rd1 Rb3 38. Be5 (38. h3 $17 {was necessary.} Bxb4 39. Bxb4 Rxb4 40. Nc7) 38... Bxb4 $19 ({But not} 38... Rxb4 39. Nxg7 Kf7 40. h4 $17) 39. Nxg7 (39. Rc1 $142) 39... a5 {[%cal Ba6a5,Ba5a4,Ba4a3,Ba3a2][%mdl 32] Strongly threatening ...a4.} 40. Nf5 $2 (40. Rc1) 40... a4 {Threatens to win with ...a3.} 41. Bd6 (41. Nxh6+ $142 Kh7 42. g3 Kxh6 43. Ra1) 41... a3 42. Bxb4 a2 43. Ne3 Rxb4 44. Nc2 {[#]} Rb1 $1 {[%mdl 512] Black mates.} 45. Rg1 Ba4 46. Na1 Bd1 {Accuracy: White = 33%, Black = 75%.} 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.15"]
[White "Sharma Isha"]
[Black "Marszalek, Maciej"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2169"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "189"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,189,22,13,5,12,37,36,34,20,27,8,14,0,0,-8,0,-16,0,-4,7,-18,0,-37,-31,-81,-76,-85,-16,-28,-10,-60,68,64,60,60,79,66,67,58,76,68,66,76,63,0,0,-27,-20,-24,-20,-52,-21,-28,-7,-63,-63,-63,-63,-63,-63,-63,0,0,0,-63,0,-209,-213,-201,-209,-225,-212,-201,23,23,37,37,96,80,96,96,104,77,96,96,104,77,106,77,104,77,96,77,96,96,104,77,77,77,77,0,0,0,77,77,107,77,77,77,129,129,129,107,107,107,107,107,114,114,114,107,107,96,96,77,77,77,77,77,77,77,77,77,77,77,77,8,77,0,77,77,77,0,77,77,77,77,77,77,77,77,77,77,77,77,77,77,77,0,77,77,77,77,77,77,77,77,77,77,77,77,77,0,77,0,77,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Nbd2 a6 7. Bb3 Ba7 8. h3 h6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 9. Nf1 Ne7 (9... Be6 10. Ng3 Qd7 11. Qe2 Bxb3 12. axb3 Ne7 13. O-O Ng6 14. Nf5 O-O 15. Nh2 Qe6 16. b4 Ne7 17. Ng3 Ng6 18. Nf5 Ne7 19. Ng3 Ng6 20. Nf5 Ne7 {½-½ (20) Chigaev,M (2604)-Kovalev,V (2687) Wijk aan Zee 2019}) 10. Ng3 Ng6 {White is slightly better.} 11. O-O O-O 12. Be3 Re8 13. Qd2 Bxe3 14. fxe3 Be6 15. Bc2 c6 16. d4 Qb6 $146 ({Predecessor:} 16... Qc7 17. Rf2 {1-0 (34) Roa Alonso,S (2445)-Ivanovich Balsinde,N (2151) Madrid 2007}) 17. a3 Rad8 18. Kh1 Bc4 19. Bd3 Bxd3 20. Qxd3 exd4 (20... d5 $17 {...dxe4 is the strong threat.} 21. Nd2 Re6) 21. exd4 Qxb2 22. Nd2 (22. Rab1 $5 {[%cal Rb1b2]} Nf4 23. Rxb2 Nxd3 24. Rxb7 $11) 22... Re6 (22... Qb5 $15 23. Qxb5 axb5) 23. Rab1 $14 Qxa3 24. Rxb7 Qa5 25. Nf5 Rde8 $1 26. Nc4 Qd8 {With the idea ...d5.} 27. d5 $1 {[%cal Rd5e6]} cxd5 28. exd5 Re1 29. Ncxd6 (29. Kh2 $14 Ne5 30. Nxe5 R1xe5 31. Qxa6 (31. Qg3 Rxf5 {[%mdl 64] Decoy} 32. Rxf5 Qc8 $11)) 29... Ne5 $1 $36 {[%cal Re5d3][%mdl 2048] Black has some pressure.} 30. Qxa6 Qa8 31. Qb5 $1 Qa1 $1 {[%csl LRc3,LRf1]} 32. Ne3 Rd8 33. Ndf5 $1 Qxc3 34. d6 (34. Kh2 $11 Rxe3 35. Qb6 {[%mdl 64] Double Attack} Nf3+ 36. Rxf3 Rxf3 37. Qxd8+ Kh7 38. gxf3) 34... Rxe3 $15 35. Nxe3 Qxe3 36. Re7 Ne4 $1 37. Kh2 $1 ({Avoid the trap} 37. Re8+ $2 Rxe8 38. Qxe8+ Kh7 $19) 37... Qg3+ 38. Kg1 $1 Qe3+ 39. Kh2 $1 f6 (39... Nd2 $1 $15 40. Rfxf7 Ndf3+ $1 {[%mdl 512]} 41. Rxf3 Nxf3+ 42. gxf3 Qf2+ 43. Kh1 Qxf3+ {[%mdl 64] Double Attack} 44. Kh2 Qf4+ 45. Kh1 Qf3+ 46. Kh2 Qf4+ 47. Kh1 Qf3+) 40. Qb7 $2 (40. Re8+ $11 {and White is okay.} Rxe8 41. Qxe8+ Kh7 42. d7 Qg3+ 43. Kg1 Qe3+ 44. Kh2) 40... Qg3+ $19 41. Kh1 Qg6 $1 {aiming for ...Ng3+.} ({Not} 41... Nxd6 42. Qc7 $11) 42. Rf4 Nxd6 43. Qb6 {[#]} Ndf7 $2 {[#]} (43... Nef7 $1 $19 44. Rg4 Qf5 45. Rxg7+ Kh8) 44. Rxe5 $1 $11 {[%mdl 576] Pin} Rd1+ (44... fxe5 45. Qxg6) 45. Kh2 Nxe5 (45... fxe5 $14 46. Qxg6 exf4) 46. Qb3+ $16 {[%mdl 64] Double Attack} Kh7 47. Qxd1 {[%mdl 4096] Endgame KQR-KQN} Qd3 48. Qa4 Qe3 49. Qc2+ Qd3 50. Qc8 Qd7 51. Qb8 Qd2 52. Rf1 Qd3 53. Rf2 Qd4 54. Qb1+ Qd3 55. Qa2 Qd6 56. Kg1 Qd4 {And now ...Nd3 would win.} 57. Kh1 (57. Qb2 $5 {[%cal Rb2d4]} Qe3 58. Qe2 $16) 57... Qd1+ 58. Kh2 Qd6 $1 {( -> ...Nf3+!)} 59. Qc2+ Qd3 60. Qc7 {Black must now prevent Rxf6.} Qd4 61. Rf1 Qc4 (61... h5 $142) 62. Qxc4 Nxc4 {KR-KN} 63. Rc1 Ne5 64. Rc7 h5 65. Kg3 Kg6 66. Kf4 Nf7 67. Rc3 Nh6 68. Rg3+ Kf7 69. Ra3 g5+ 70. Ke4 h4 71. Kd5 Nf5 72. Rf3 Kg6 73. Rf2 Ng7 74. Ke4 Nh5 75. Rf3 (75. Kd4 $16) 75... Ng3+ (75... Nf4 $11) 76. Kd5 (76. Ke3 $16) 76... Ne2 (76... Nf5 $1 $11) 77. Rf2 Nf4+ 78. Ke4 Nh5 $1 79. Ra2 Nf4 80. Kf3 Nh5 81. Ra4 Ng3 82. Ra8 Kf5 83. Re8 Nh5 84. Rh8 Ng3 85. Rh6 Nf1 86. Rh8 Ng3 $1 87. Ra8 Nh5 88. Ra5+ Kg6 89. Kg4 Nf4 {[#]} 90. Ra2 $1 Nd3 {[%cal Rd3e5]} 91. Kf3 Nf4 92. Ra6 Nh5 93. Ra4 Ng3 $1 94. Ra6 Nh5 $1 95. Ra4 {Accuracy: White = 57%, Black = 57%.} ({White should try} 95. Rb6 $16) 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.11"]
[White "Marszalek, Maciej"]
[Black "Tancsa, Tamas"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2314"]
[BlackElo "2193"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,109,38,32,24,20,28,49,20,39,15,16,0,24,9,23,20,98,98,98,104,112,67,106,97,86,70,74,83,66,81,86,37,37,37,46,38,47,48,54,57,61,59,53,53,91,100,117,93,108,106,106,106,195,172,247,255,251,236,236,208,271,263,463,463,463,372,260,260,5157,5255,4662,2428,29969,29971,29972,29968,29971,29974,29971,29972,29975,29969,29962,29964,29970,29968,29975,11394,29984,29985,29985,29986,29986,29987]} 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nc6 7. Nc3 e5 8. dxe5 dxe5 9. Bg5 Be6 10. Qc1 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} (10. Qa4 Qb8 11. Bxf6 Bxf6 12. Nd2 Bg7 13. Rfd1 Rd8 14. Nb3 Nd4 15. Nc5 c6 16. e3 Bg4 17. exd4 exd4 18. N3e4 Bxd1 19. Rxd1 {1-0 (32) Carlsen,M (2835)-Firouzja,A (2607) St Petersburg 2018}) 10... Qc8 11. Rd1 Nd7 12. Nd5 {White is slightly better.} e4 13. Ne1 $146 ({Predecessor:} 13. Nd2 f5 14. Nb3 Rf7 15. Bh6 Bh8 16. h4 Nb6 17. h5 Ne5 {½-½ (46) Jumabayev,R (2612)-Onischuk,V (2637) Riadh 2017}) 13... f5 14. Bh6 Bxd5 15. Bxg7 Kxg7 16. cxd5 Nce5 {[#]} (16... Ne7 $11 {keeps the balance.}) 17. Qc3 $1 $16 Kg8 18. Rac1 c5 19. dxc6 bxc6 20. f4 Ng4 {[%cal Be5g4,Bg4f6,Bf6d5][%mdl 32]} 21. h3 Ngf6 22. Qxc6 {Hoping for Qe6+.} Qxc6 23. Rxc6 Rac8 24. Rxc8 Rxc8 25. e3 Nb6 26. Bf1 Nfd5 27. Kf2 Kf7 28. g4 Ke6 29. gxf5+ gxf5 30. Rd2 Nc4 31. Bxc4 $1 Rxc4 {[%mdl 4096] Endgame KRN-KRN} 32. Nc2 (32. Rc2 {looks sharper.} Rb4 33. b3 Rb6 34. Rc4 Ra6 35. a4) 32... Nb4 33. Nxb4 Rxb4 {KR-KR} 34. Rc2 Kd6 (34... Kd5 $16) 35. Kg3 $18 Rb8 {[#]} (35... Kd5 {is a better defense.} 36. Kh4 Rc4 37. Rd2+ Ke6) 36. Kh4 $1 Rg8 37. Rc3 Rg2 38. Ra3 Kc5 39. Rxa7 Rxb2 $2 (39... Re2 40. Kg5 (40. Rxh7 Rxe3 41. Kg5 Rf3 $18) 40... Rxe3 41. Kxf5 (41. Rxh7 Rf3 $18) 41... h5) 40. Kg5 Re2 41. Kxf5 Rxe3 42. Rxh7 Ra3 $2 (42... Kd6 43. Ra7 Kc5) 43. Kxe4 Kd6 44. Kf5 Rxa2 45. h4 Ra8 46. Kg6 Ra4 47. Rf7 Ra1 48. h5 Rg1+ 49. Kf6 Rh1 50. Rh7 Rh4 51. f5 Rh1 52. Rh8 Kd7 53. h6 {White mates.} Kc7 54. h7 Kb7 55. Re8 {Accuracy: White = 84%, Black = 36%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.12"]
[White "Strebkovs, Andrejs"]
[Black "Sharma Isha"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2278"]
[BlackElo "2169"]
[Annotator "ChessBase"]
[PlyCount "68"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. g3 {[%emt 0:00:49]} g6 {[%emt 0:00:41]} 3. Bg2 {[%emt 0:00:17]} Bg7 {[%emt 0:00:07]} 4. e4 {[%emt 0:00:19]} d6 {[%emt 0:00:17]} 5. Nc3 {[%emt 0:00:57]} c6 {[%emt 0:00:15]} 6. Nge2 {[%emt 0:00:14]} O-O {[%emt 0:00:11]} 7. h3 {[%emt 0:00:22]} d5 {[%emt 0:01:53]} 8. e5 {[%emt 0:02:03]} Ne8 {[%emt 0:00:07]} 9. O-O {[%emt 0:00:34]} Nc7 {[%emt 0:01:02]} 10. f4 {[%emt 0:00:59]} f5 {[%emt 0:03:20]} 11. Bf3 {[%emt 0:02:04]} a5 {[%emt 0:05:10]} 12. g4 {[%emt 0:01:53]} h6 {[%emt 0:00:08]} 13. Ng3 {[%emt 0:01:50]} e6 {[%emt 0:03:57]} 14. Rf2 {[%emt 0:08:49]} b5 {[%emt 0:07:58]} 15. Rg2 {[%emt 0:04:23]} Kh7 {[%emt 0:03:31]} 16. g5 {[%emt 0:12:13]} hxg5 {[%emt 0:01:55]} 17. fxg5 {[%emt 0:05:32]} c5 {[%emt 0:02:04]} 18. h4 {[%emt 0:02:47]} cxd4 {[%emt 0:00:41]} 19. Nce2 {[%emt 0:02:22]} Nc6 {[%emt 0:04:08]} 20. h5 {[%emt 0:01:55]} Nxe5 {[%emt 0:02:45]} 21. hxg6+ {[%emt 0:02:06]} Kg8 {[%emt 0:00:16]} 22. Nf4 {[%emt 0:02:47]} Nc4 {[%emt 0:19:22]} 23. Ngh5 {[%emt 0:03:09]} e5 {[%emt 0:07:17]} 24. Nf6+ {[%emt 0:09:12]} Bxf6 {[%emt 0:05:09]} 25. gxf6 {[%emt 0:00:04]} Rxf6 {[%emt 0:04:15]} 26. Qe1 {[%emt 0:04:45]} Rc6 {[%emt 0:10:51]} 27. Nd3 {[%emt 0:11:05]} e4 {[%emt 0:01:33]} 28. Bg5 {[%emt 0:00:31]} Qd7 {[%emt 0:00:52]} 29. Qh4 {[%emt 0:05:08]} Qg7 {[%emt 0:06:12]} 30. Bh6 {[%emt 0:03:09]} Qf6 {[%emt 0:00:06]} 31. Bg5 {[%emt 0:00:32]} Qh8 {[%emt 0:00:25]} 32. Bh6 {[%emt 0:01:26]} Qf6 {[%emt 0:00:29]} 33. Bg5 {[%emt 0:02:08]} Qg7 {[%emt 0:00:07]} 34. Bh6 {[%emt 0:01:36]} Qf6 {[%emt 0:00:13]} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.13"]
[White "Hilwerda, Jonas"]
[Black "Vetokhin, Savva"]
[Result "1-0"]
[ECO "B89"]
[WhiteElo "2230"]
[BlackElo "2113"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,91,0,2,0,0,-52,-58,-70,45,39,86,40,35,33,80,79,84,47,42,43,52,21,15,0,69,45,244,156,151,156,158,0,515,537,537,537,527,533,508,491,502,509,562,572,575,535,575,570,561,532,733,735,720,708,862,851,1133,1069,1864,1716,29978,29978,29982,29983,29983,29984,29980,2576,29980,29981,29981,29982,29985,29982,29982,29981]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8. Qe2 O-O 9. O-O-O a6 10. Nxc6 {B89: Sicilian: Velimirovic Attack} (10. Bb3 Qe8 11. Nxc6 Qxc6 12. Bg5 b5 13. f4 Ra7 14. e5 dxe5 15. fxe5 Nd5 16. Ne4 Bxg5+ 17. Nxg5 Qc5 18. Rhe1 Nf4 {1-0 (30) Morozevich,A (2656)-Kryakvin,D (2588) Khanty-Mansiysk 2018}) 10... bxc6 11. e5 (11. g4 $11) 11... Nd5 $1 $15 12. exd6 {Black is slightly better.} Bxd6 (12... Nxc3 $1 $15 13. bxc3 Bxd6) 13. Ne4 $14 Be5 $146 ({Predecessor:} 13... Be7 14. Bd4 Qc7 15. Ng3 Nf4 16. Qe4 Ng6 17. Rhe1 Bb7 {0-1 (33) Dahl,B (2310)-Ascolese,P Long Island 1988}) 14. Qh5 Qc7 15. Bc5 Re8 16. Rhe1 Rb8 17. Bb3 a5 18. a4 $40 {[%mdl 128] White attacks.} Ba6 19. g3 g6 20. Qh4 f5 ({Black should play} 20... Bg7 $11) 21. f4 Bg7 $2 (21... fxe4 $14 22. fxe5 Bd3) 22. Bd6 (22. Ng5 $6 Bf6 $16) 22... Qb6 {Strongly threatening ...Bc4.} 23. Ng5 $1 {[%csl Gg5][%cal Rh4h7]} h5 {White must now prevent ...Bc4!} 24. Bxb8 $2 (24. Rxe6 Bc4 $11) (24. Nxe6 $16 Bf6 25. Qxf6 $1 {[%mdl 512]} Nxf6 26. Bc5 Qxb3 27. cxb3) 24... Qxb8 $4 {[%mdl 8192]} (24... Rxb8 $11 {and Black stays safe.} 25. Rxe6 (25. Nxe6 $2 Bf6 $17) 25... Bc4 26. Rxg6 (26. Bxc4 $2 Qxb2+ 27. Kd2 Qb4+ 28. Ke2 Qxc4+ {[%mdl 64] Double Attack} 29. Ke1 Qxc2 $19) (26. Rde1 Bxb3 27. Rxg6 Nb4 $15) 26... Qe3+ 27. Rd2 Qe1+ 28. Rd1 Qe3+ {[%mdl 64] Double Attack} 29. Rd2 Qe1+ 30. Rd1 Qe3+ {[%mdl 64] Double Attack}) 25. Rxe6 $18 Rxe6 26. Nxe6 Bf6 {[#]} 27. Qxf6 $3 {[%mdl 576] Remove Defender} Nxf6 28. Rd8+ Qxd8 29. Nxd8+ {[%mdl 4160] Endgame Discovered Attack. KBN-KBN} Kg7 30. Nxc6 Ng4 31. h3 Nf2 32. Nxa5 Nxh3 33. Kd2 Kf6 34. Ke3 g5 35. Bd5 Bf1 36. b4 h4 37. fxg5+ Ke5 38. g6 hxg3 39. g7 f4+ 40. Kd2 Kxd5 41. g8=Q+ Ke4 42. Qa8+ (42. Ke1 $142 g2 43. Qe6+ {[%mdl 64] Double Attack} Kf3 44. Qxh3+ Ke4 45. Qg4 Kd5 46. Qf5+ Kd6 47. Nb7+ Ke7 48. Kf2) 42... Kf5 43. Qh1 {White mates.} Kg4 44. Qxf1 f3 45. Nc4 g2 46. Ne5+ {[%mdl 64] Double Attack. Accuracy: White = 84%, Black = 26%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.14"]
[White "Gorbatov, Alexej"]
[Black "Jurek, Josef"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2355"]
[BlackElo "2235"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,67,3,9,12,2,4,6,0,8,10,28,23,22,28,37,29,77,81,72,75,76,57,65,50,78,61,82,20,62,62,65,64,99,89,89,87,89,79,102,73,72,72,185,185,184,181,178,181,215,209,210,210,256,263,240,241,291,286,272,282]} 1. d4 Nf6 2. c4 e6 3. a3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 {E00: Catalan Bogo-Indian (3 g3 Bb4+).} b6 7. cxd5 Nxd5 8. Nxd5 {The position is equal.} exd5 9. Bd3 {[#]} Ba6 $146 (9... g6 {looks sharper.} 10. Ne2 c5 11. O-O Nc6 12. Bh6 Re8) ({Predecessor:} 9... c5 10. Nf3 Nc6 11. O-O Be6 12. Bb5 Na5 13. dxc5 bxc5 14. b4 Qb6 15. Qa4 a6 {1-0 (34) Nakamura,H (2787)-Caruana,F (2795) Saint Louis 2016}) 10. Bxa6 Nxa6 11. Qa4 Nb8 12. Ne2 $36 {[%mdl 2048] White has the initiative.} Bd6 13. O-O c6 14. Rac1 a5 15. Rc2 Ra7 16. Rfc1 Rd7 17. Qb3 Re8 18. a4 (18. Bxd6 $16 Rxd6 19. Nf4) 18... Bxf4 19. Nxf4 Rd6 20. h3 Re7 21. Qa3 Rc7 22. b4 axb4 23. Qxb4 Ra7 24. Rb2 Ra6 25. Nd3 Rd7 {[#]} (25... g6 $16 {was necessary.}) 26. a5 $1 $18 {[%mdl 512]} Rxa5 27. Qxb6 Qxb6 28. Rxb6 Rd8 29. Ne5 Ra7 30. Rcb1 Nd7 31. Nxc6 Nxb6 32. Nxd8 ({Much less strong is} 32. Nxa7 Rd6) 32... Ra6 33. Nc6 {[#] Strongly threatening Nb8.} Nd7 34. Ne7+ {Accuracy: White = 90%, Black = 70%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.15"]
[White "Nguyen, Alex Dac-Vuong"]
[Black "Vatsal Singhania"]
[Result "1/2-1/2"]
[ECO "B54"]
[WhiteElo "2401"]
[BlackElo "2230"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 30,99,52,51,54,54,56,50,51,27,64,50,58,44,46,37,50,36,40,24,33,25,24,35,39,14,12,8,17,13,28,15,26,6,9,1,14,2,20,6,20,15,23,8,31,20,43,39,43,14,14,8,26,10,13,0,0,0,0,0,52,52,52,52,52,52,154,154,154,154,154,154]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 a6 6. c4 e6 7. Nc3 Be7 8. Be3 b6 9. Be2 Bb7 10. O-O O-O 11. Qd2 Nbd7 12. Rfd1 Qc7 13. Rac1 Rac8 14. a3 Qb8 15. b4 Rfe8 16. Nb3 Bd8 {A31: Symmetrical English: 2 Nf3 Nf6 3 d4} (16... Bc6 17. Kh1 h6 18. Bf1 Ne5 19. Qf2 Bd7 20. Nb1 Ba4 21. N1d2 b5 22. c5 dxc5 23. Bxc5 Bxc5 24. Rxc5 {0-1 (62) Negi,P (2664)-Hou,Y (2683) Saint Louis 2015}) 17. Bf4 Ne5 18. Bxe5 ({Much weaker is} 18. Qxd6 Nxf3+ 19. gxf3 (19. Bxf3 Bc7 $17) 19... Bc7 $17) 18... dxe5 {White is slightly better.} 19. c5 Qa7 {[%cal Rb6c5]} 20. Kh1 Bc7 21. Na4 b5 $1 {[%cal Rb5a4]} 22. Nc3 Bc6 23. Qe3 $146 ({Predecessor:} 23. Ra1 Qb7 24. Qe1 Rb8 25. Bf1 {1-0 (59) Valdes Escobar,A (2382)-Salman,P (2258) Moscow 2018}) 23... Red8 24. Qg1 Qa8 25. Rxd8+ Rxd8 26. Rd1 Kf8 27. Rxd8+ (27. Bd3 {with more complications.} Nh5 28. Bc2 g6 29. Qe1 Kg7 30. Rxd8 Qxd8 31. Qd2) 27... Qxd8 28. Qd1 Qxd1+ 29. Bxd1 Nd7 30. Kg1 Nb8 31. Be2 Be8 32. g3 Ke7 33. Kf2 Kd8 34. Nc1 Ke7 35. Nd3 Nc6 36. Bd1 Nd4 37. Ke3 f6 38. Ne2 Nc6 39. Bb3 g5 40. Ne1 Bb8 41. Nc2 h5 42. h3 Bc7 43. g4 h4 44. Nc3 Nd4 (44... Bd7 $11) 45. Nxd4 $14 exd4+ 46. Kxd4 Be5+ 47. Kd3 Bxc3 (47... Bc6 $14) 48. Kxc3 $16 {White is clearly better.} Bc6 49. Kd4 e5+ 50. Ke3 {Accuracy: White = 25%, Black = 54%.} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.11"]
[White "Tancsa, Tamas"]
[Black "Vatsal Singhania"]
[Result "0-1"]
[ECO "B69"]
[WhiteElo "2193"]
[BlackElo "2230"]
[Annotator "ChessBase"]
[PlyCount "68"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:00]} cxd4 4. Nxd4 {[%emt 0:00:17]} Nf6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:13]} Nc6 {[%emt 0:00:00]} 6. Bg5 {[%emt 0:00:16]} e6 {[%emt 0:00:00]} 7. Qd2 {[%emt 0:00:29]} a6 {[%emt 0:00:00]} 8. O-O-O {[%emt 0:00:35]} Bd7 {[%emt 0:00:00]} 9. f4 {[%emt 0:00:22]} Be7 {[%emt 0:00:04]} 10. Nf3 {[%emt 0:00:39]} b5 {[%emt 0:00:13]} 11. Bxf6 gxf6 {[%emt 0:00:05]} 12. f5 {[%emt 0:02:13]} Qb6 {[%emt 0:01:21]} 13. Bd3 {[%emt 0:12:09]} O-O-O {[%emt 0:01:13]} 14. Ne2 {[%emt 0:06:13]} Kb8 {[%emt 0:01:55]} 15. Kb1 {[%emt 0:03:20]} Bc8 {[%emt 0:02:33]} 16. Nf4 {[%emt 0:03:17]} Qc5 {[%emt 0:04:27]} 17. Rhe1 {[%emt 0:06:47]} Rhg8 {[%emt 0:08:25]} 18. Rc1 {[%emt 0:13:24]} Rge8 {[%emt 0:08:22]} 19. c4 {[%emt 0:06:42]} b4 {[%emt 0:00:12]} 20. Nd5 {[%emt 0:05:51]} a5 {[%emt 0:02:07]} 21. Qh6 {[%emt 0:06:20]} Ne5 {[%emt 0:01:55]} 22. Nxe5 {[%emt 0:04:23]} dxe5 {[%emt 0:00:15]} 23. Nxe7 {[%emt 0:00:06]} Qxe7 {[%emt 0:00:08]} 24. Bc2 {[%emt 0:03:31]} Bb7 {[%emt 0:00:55]} 25. Ba4 {[%emt 0:02:06]} Rg8 {[%emt 0:00:44]} 26. c5 {[%emt 0:00:28]} Rxg2 {[%emt 0:00:37]} 27. c6 {[%emt 0:06:51]} Rdd2 {[%emt 0:00:06]} 28. c7+ {[%emt 0:00:56]} Kc8 {[%emt 0:00:26]} 29. Bb3 {[%emt 0:00:19]} Rxb2+ {[%emt 0:00:30]} 30. Ka1 {[%emt 0:00:01]} Rxa2+ {[%emt 0:00:16]} 31. Bxa2 {[%emt 0:00:52]} b3 {[%emt 0:00:03]} 32. Qe3 {[%emt 0:07:35]} Rxa2+ {[%emt 0:00:05]} 33. Kb1 {[%emt 0:00:12]} Qa3 {[%emt 0:00:05]} 34. Qc3 {[%emt 0:00:14]} Rxh2 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.12"]
[White "Jurek, Josef"]
[Black "Nguyen, Alex Dac-Vuong"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2235"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,145,43,35,15,56,47,40,35,74,69,198,194,238,241,489,426,412,431,419,352,343,335,477,465,456,453,457,434,468,447,462,479,470,462,454,371,370,359,348,335,315,277,275,196,194,192,190,165,157,158,151,93,178,104,122,51,58,62,88,72,72,90,142,85,100,0,0,33,21,0,480,437,774,788,746,715,825,797,856,634,897,710,1294,1248,1057,941,904,896,845,804,804,816,787,743,1378,1482,29951,29953,29949,29955,29952,29950,29945,29950,29952,29949,29940,29949,29957,29962,29963,29964,29971,29968,29974,29975,29976,29977,29966,29966,29984,29985,29983,29984,29986,29987,29987,29988,29989,29989,29989,29988,29988,29989,29991,29992,29992,29992]} 1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 b5 5. e4 Nxe4 6. Bd3 {E10: Blumenfeld Gambit.} Nd6 7. cxb5 Bb7 8. Nc3 {White is slightly better.} Be7 9. O-O exd5 ({Black should try} 9... c4 $14) 10. Re1 $18 O-O {[#]} 11. Nxd5 $1 {[%mdl 512] [#]} Bf6 $146 (11... Bxd5 {keeps fighting.} 12. Bxh7+ {[%mdl 64] Discovered Attack} Kxh7 13. Qxd5 {[%mdl 64] Double Attack} Nxb5 14. Qxa8 Nc6) ({Predecessor:} 11... Bxd5 12. Bxh7+ Kxh7 13. Qxd5 Nc6 14. bxc6 dxc6 15. Qxc5 {½-½ (15) Sanikidze,T (2525)-Quparadze,G (2499) Tbilisi 2018}) 12. Nxf6+ Qxf6 13. Bg5 Bxf3 14. Bxf6 Bxd1 15. Be7 {[%mdl 64] Double Attack} c4 {[#]} (15... Bc2 {was worth a try.}) 16. Bxd6 {Played: Bd3xh7} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.13"]
[White "Vetokhin, Savva"]
[Black "Gorbatov, Alexej"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2113"]
[BlackElo "2355"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,129,19,12,26,15,28,14,18,17,25,-3,18,4,113,100,113,60,91,74,115,94,93,87,193,160,127,147,398,404,414,395,410,388,715,712,707,593,618,599,1123,1121,1119,1102,1078,1057,1035,567,878,477,458,482,449,462,423,391,382,377,418,345,362,362,337,283,356,355,329,274,345,357,357,357,357,357,343,321,29964,29965,29961,29966,29970,29971,29971,29972,29972,29973,29973,29974,29975,29976,29977,29978,29978,29979,29979,29980,29980,29981,29981,29983,29983,29983,29986,29987,29987,29986,29988,29987,29987,29988,29988,29989,29991,29991,29990,29989,29989,29990,29990,29991,29991,4134]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nd2 e6 5. Nb3 Nd7 6. Nf3 h6 {B12: Caro-Kann: Advance Variation} 7. Be2 Ne7 8. O-O g5 {The position is equal.} (8... Nc8 9. Ne1 Be7 10. Bd3 Bxd3 11. Nxd3 Ncb6 12. Qg4 g6 13. Nd2 Qc7 14. a4 {0-1 (51) Sasikiran,K (2656)-Wojtaszek,R (2725) Moscow 2019}) 9. a4 Bg7 10. Ne1 Qc7 11. Nd3 O-O-O (11... b6 $11) 12. a5 Bxd3 13. Bxd3 ({Much worse is} 13. Qxd3 $6 c5 $11) ({White should try} 13. cxd3 $16 f6 14. f4) 13... f6 $146 ({Predecessor:} 13... c5 14. Nxc5 Nxc5 15. dxc5 {½-½ (44) Gopal,G (2562)-Liu,C (2353) Al Ain 2015}) 14. f4 c5 {Threatens to win with ...c4.} 15. exf6 Bxf6 {...c4 is the strong threat.} 16. dxc5 gxf4 (16... Nxc5 $16 {was worth a try.} 17. Nxc5 Qxc5+ 18. Kh1 Qd6) 17. Bxf4 e5 18. Bg3 h5 $2 {[%mdl 8192]} (18... a6 $16) 19. a6 $18 b6 20. cxb6 Qxb6+ 21. Bf2 Qe6 $2 (21... Qc7 22. c4 d4) 22. Bxa7 Rhg8 23. Bf2 e4 24. Bb5 Be5 25. Bxd7+ Qxd7 26. a7 Kc7 27. Qd2 {aiming for Qa5+.} Nc6 28. Be3 Qg7 29. a8=Q {[%mdl 64] [#] Deflection} Rxa8 30. Rxa8 Rxa8 31. Qxd5 Rf8 {If only Black now had time for ...Bxh2+....} 32. Rxf8 Qxf8 33. Qxe4 Bxb2 34. Qh7+ Qe7 35. Qxe7+ Nxe7 {[%mdl 4096] Endgame KBN-KBN} 36. Kf2 Nc6 37. Kg3 Bf6 38. c4 Kd6 39. Bf4+ Ke6 40. Kf3 Kf5 41. g3 Bc3 42. h3 Ne5+ $2 (42... Be1 $18 43. g4+ hxg4+ 44. hxg4+ Ke6) 43. Bxe5 $1 {White mates.} Kxe5 {KB-KN} 44. h4 Be1 45. Nc1 Kd4 {[#]} 46. c5 $1 Bb4 (46... Kxc5 47. Nd3+) 47. c6 Bd6 48. Ne2+ Kd5 49. Nf4+ Kxc6 50. Nxh5 Kd5 51. g4 Ke6 52. g5 Be7 53. Kg4 Bc5 54. Nf4+ Kf7 55. Kf5 Bd4 56. h5 Bb2 57. Nd5 Kg7 58. Nf6 Bc1 59. h6+ Kh8 60. Ng4 Ba3 61. g6 Bf8 62. Ne5 Bxh6 63. Nf7+ {[%mdl 64] Double Attack} Kg7 64. Nxh6 {[%mdl 64] Overworked Piece} Kxh6 65. Kf6 {Accuracy: White = 76%, Black = 22%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.14"]
[White "Sharma Isha"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2169"]
[BlackElo "2230"]
[Annotator "ChessBase"]
[PlyCount "93"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 4. Bg2 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 5. Qe2 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 6. d3 {[%emt 0:00:23]} Be7 {[%emt 0:01:34]} 7. O-O {[%emt 0:04:17]} h6 {[%emt 0:01:20]} 8. c3 {[%emt 0:00:28]} O-O {[%emt 0:00:07]} 9. Re1 {[%emt 0:02:05]} Re8 {[%emt 0:00:52]} 10. Na3 {[%emt 0:03:26]} Bf8 {[%emt 0:02:29]} 11. Nc4 {[%emt 0:00:09]} d6 {[%emt 0:01:47]} 12. Ne3 {[%emt 0:00:52]} Be6 {[%emt 0:03:47]} 13. c4 {[%emt 0:03:35]} Rb8 {[%emt 0:02:03]} 14. b3 {[%emt 0:08:33]} a6 {[%emt 0:08:50]} 15. Nd5 {[%emt 0:06:48]} b5 {[%emt 0:11:31]} 16. Be3 Bg4 17. h3 {[%emt 0:08:46]} Bxf3 {[%emt 0:01:49]} 18. Qxf3 Nxd5 {[%emt 0:03:37]} 19. cxd5 {[%emt 0:07:59]} Ne7 {[%emt 0:18:44]} 20. h4 {[%emt 0:06:45]} g6 {[%emt 0:04:48]} 21. g4 {[%emt 0:08:01]} Bg7 {[%emt 0:00:54]} 22. Bh3 {[%emt 0:00:25]} Nc8 {[%emt 0:19:34]} 23. g5 {[%emt 0:01:22]} h5 {[%emt 0:00:02]} 24. Kh1 {[%emt 0:02:16]} Nb6 {[%emt 0:02:25]} 25. Rec1 {[%emt 0:01:53]} Qe7 {[%emt 0:04:44]} 26. Rab1 {[%emt 0:02:52]} b4 {[%emt 0:02:06]} 27. Qe2 {[%emt 0:02:12]} Qb7 {[%emt 0:04:21]} 28. f3 {[%emt 0:04:32]} Re7 {[%emt 0:02:32]} 29. a3 {[%emt 0:00:20]} a5 {[%emt 0:00:18]} 30. Rc2 {[%emt 0:01:11]} Ra8 31. Ra2 {[%emt 0:01:18]} Ree8 {[%emt 0:01:34]} 32. a4 {[%emt 0:02:44]} Qe7 {[%emt 0:01:07]} 33. Rf1 {[%emt 0:00:54]} Nd7 {[%emt 0:00:53]} 34. Qg2 {[%emt 0:01:08]} Rf8 {[%emt 0:00:28]} 35. Qg3 {[%emt 0:01:24]} Rae8 {[%emt 0:01:37]} 36. Rg2 {[%emt 0:00:15]} Kh7 {[%emt 0:00:16]} 37. Rfg1 {[%emt 0:00:17]} Nb6 {[%emt 0:00:49]} 38. Qe1 {[%emt 0:04:01]} Nd7 {[%emt 0:00:44]} 39. Bc1 {[%emt 0:01:54]} Nb6 {[%emt 0:00:18]} 40. Bb2 {[%emt 0:00:37]} Qb7 {[%emt 0:00:39]} 41. Rf2 {[%emt 0:36:05]} Nc8 {[%emt 0:30:17]} 42. f4 {[%emt 0:02:43]} f5 {[%emt 0:00:00]} 43. gxf6 {[%emt 0:00:00]} Bxf6 {[%emt 0:00:00]} 44. f5 {[%emt 0:00:00]} Bxh4 {[%emt 0:00:00]} 45. fxg6+ {[%emt 0:00:00]} Kh6 {[%emt 0:00:00]} 46. Bc1+ {[%emt 0:00:00]} Rf4 {[%emt 0:00:00]} 47. Rxf4 {[%emt 0:00:00]} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.15"]
[White "Marszalek, Maciej"]
[Black "Strebkovs, Andrejs"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2314"]
[BlackElo "2278"]
[Annotator "TA"]
[PlyCount "219"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,219,0,13,39,24,37,17,34,23,40,51,32,28,41,35,48,0,64,58,56,51,49,29,46,39,42,43,43,54,43,45,50,47,100,101,102,97,153,95,96,116,141,141,141,141,141,129,136,127,122,112,115,120,120,120,120,89,151,93,157,157,158,96,100,86,140,83,83,73,73,73,73,73,73,65,73,73,73,73,73,73,73,73,73,73,76,73,73,66,76,74,76,62,62,62,83,83,83,83,83,83,83,83,95,83,83,83,83,81,88,81,81,81,81,81,81,74,81,81,81,81,81,81,81,72,72,72,79,65,76,65,98,79,84,59,106,103,111,103,115,72,74,75,74,64,72,75,97,96,135,106,135,135,136,138,247,242,242,237,266,247,318,318,512,484,6004,6004,6004,5997,5997,5997,5951,5953,29970,29971,29969,29969,29969,12249,6099,5501,5037,4974,4439,4019,2754,3126,4067,1207,4926,4133,3223,1124,1387,1120,2770,4152,6003,5899,6099,6099,5931,5122,1298,1125]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 dxc4 5. Qxc4 Bf5 6. g3 e6 7. Bg2 Nbd7 8. O-O Be7 9. Nc3 Ne4 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines} (9... Rc8 10. a4 Ne4 11. a5 O-O 12. Qb3 b5 13. axb6 axb6 14. Ra7 b5 15. Bf4 Ndf6 16. Ne5 Bd6 17. Nxe4 Bxe4 18. Nxf7 Rxf7 19. Qxe6 {1-0 (33) Mamedyarov,S (2772)-Predke,A (2676) Moscow 2019}) 10. Qb3 Qb6 11. Nh4 Qxb3 {The position is equal.} 12. axb3 Nxc3 13. bxc3 Bc2 14. b4 O-O $146 {[#]} ({Predecessor:} 14... Nf6 15. b5 Be4 16. bxc6 bxc6 17. Ba3 Bxg2 18. Kxg2 {½-½ (30) Shemyakin,V (2173)-Strebkovs,A (2321) Pardubice 2017}) 15. b5 $1 {[%mdl 512]} Rfc8 (15... cxb5 16. Bxb7) 16. Ba3 Bf6 (16... Bxh4 $11 17. gxh4 a5) 17. bxc6 $14 bxc6 18. Rfc1 Bb3 19. Bb4 g5 20. Nf3 {Hoping for Nd2.} Bd5 21. Nd2 $36 {[%mdl 2048] White has good play.} c5 22. dxc5 Nxc5 23. Bxd5 exd5 24. Ra5 Be7 (24... Ne4 $1 $14 25. Nxe4 (25. Rxd5 Nxd2 26. Rxd2 a5 $11) 25... dxe4) 25. Rd1 $16 h6 26. Nf3 Nb3 ({Black should try} 26... Nb7) 27. Raxd5 (27. Ra3 $142 $1 Nc5 28. Rxd5) 27... Bxb4 28. cxb4 a5 {[#]} 29. bxa5 $1 Rxa5 30. Rxa5 Nxa5 {[%mdl 4096] Endgame KRN-KRN} 31. Rd6 Rc6 32. Rd8+ Kg7 33. Nd4 Rf6 34. Rd5 Nc6 35. Nf5+ Kg6 36. g4 Re6 (36... h5 $142) 37. Rc5 (37. e3 $142) 37... Ne7 ({Better is} 37... Ne5) 38. e3 Ng8 39. h3 (39. f3 $142) 39... Nf6 40. Kg2 Ra6 (40... h5 $142) 41. Kf3 (41. f3 $142) 41... h5 42. Rc8 hxg4+ 43. hxg4 {Strongly threatening Rh8.} Nd7 44. Kg3 Ne5 45. Rh8 {[%csl Gf5][%cal Rh8h6]} (45. Rc5 {seems wilder.} Kf6 46. Rd5 Ng6 47. Nd4 Ne5 48. Rb5) 45... Kf6 46. Rh6+ Ng6 47. Rh1 Ne7 48. Nd4 Kg6 49. Rb1 Nc6 50. Nf3 Nd8 51. Rb8 Ne6 52. Rb7 {Threatens to win with Ne5+.} Kf6 53. Nd2 Ra4 54. Kf3 Nc5 55. Rb6+ Ne6 56. Ne4+ Kg7 57. Nd6 Ra7 58. Nf5+ Kf6 59. Nd4 Ra2 60. Kg3 Ra3 61. Nf5 Ra7 62. Rb8 Ke5 63. Re8 Kf6 64. Rh8 Ke5 65. Rh7 Nf8 66. Rh5 (66. Rh6 {with more complications.} Ne6 67. Kf3 Ra2 68. Rh8 Ra6 69. Rc8) 66... Ne6 67. Kf3 Ra3 68. Rh7 Ra7 69. Ng3 Kf6 70. Rh6+ Kg7 71. Nf5+ Kg8 72. Ke4 Ra5 73. Rh1 Rc5 74. Nd4 Nf8 75. Rh5 Nh7 {With the idea ...Nf6+.} 76. Rh6 Ra5 77. Rb6 Ra8 78. f3 Re8+ 79. Kd3 Nf8 80. Rd6 Ra8 81. Rd5 Nh7 82. Rc5 Rd8 83. Ke2 Kg7 84. Nf5+ Kf8 85. Rc6 Kg8 (85... Ke8 $16 86. Rb6 Nf8) 86. Rc7 $18 {aiming for Nh6+.} Rf8 87. e4 Nf6 88. Kf2 Kh7 89. Kg3 Ng8 $2 (89... Ne8 {was called for.}) 90. e5 Kg6 (90... Nh6 $142 91. e6 Re8 92. exf7 Rf8) 91. Rc6+ Kh7 92. Rc1 Kg6 {[#]} 93. Rh1 $1 {[%cal Rh1h8]} Re8 94. Rh8 Ra8 95. Kf2 Ra2+ 96. Ke3 Ra3+ 97. Kd4 Ra4+ {White is clearly winning.} 98. Kc5 Ra5+ 99. Kb4 Rxe5 100. Rxg8+ {KRN-KR} Kf6 101. Kc4 Re1 102. Kd4 Rf1 103. Ke3 Ra1 104. Rb8 Ra3+ 105. Kf2 Ke5 106. Rb5+ Kf6 107. Nd6 Kg6 108. Ne4 f6 109. Rb6 Ra2+ 110. Kg3 {Accuracy: White = 68%, Black = 54%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.11"]
[White "Strebkovs, Andrejs"]
[Black "Tancsa, Tamas"]
[Result "1-0"]
[ECO "A53"]
[WhiteElo "2278"]
[BlackElo "2193"]
[Annotator "NA"]
[PlyCount "85"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:05]} Nbd7 {[%emt 0:00:24]} 4. Nf3 {[%emt 0:00:20]} g6 {[%emt 0:00:09]} 5. Bg5 {[%emt 0:03:00]} Bg7 {[%emt 0:02:22]} 6. e3 {[%emt 0:00:15]} O-O {[%emt 0:02:40]} 7. Be2 {[%emt 0:00:24]} h6 {[%emt 0:02:44]} 8. Bh4 {[%emt 0:00:06]} c6 {[%emt 0:01:13]} 9. O-O {[%emt 0:00:38]} Qc7 {[%emt 0:04:11]} 10. b4 {[%emt 0:02:50]} e5 {[%emt 0:04:21]} 11. c5 {[%emt 0:06:17]} d5 {[%emt 0:07:16]} 12. Qb3 {[%emt 0:03:05]} Re8 {[%emt 0:10:07]} 13. Rad1 {[%emt 0:06:28]} Ne4 {[%emt 0:07:28]} 14. Nxe4 {[%emt 0:03:19]} dxe4 {[%emt 0:01:24]} 15. Bc4 {[%emt 0:00:52]} Nxc5 {[%emt 0:01:00]} 16. dxc5 {[%emt 0:00:25]} exf3 {[%emt 0:00:09]} 17. gxf3 {[%emt 0:00:56]} b5 {[%emt 0:26:01]} 18. cxb6 {[%emt 0:00:21]} axb6 {[%emt 0:00:06]} 19. a4 {[%emt 0:00:58]} Kh7 {[%emt 0:03:43]} 20. Bxf7 {[%emt 0:03:20]} Rf8 {[%emt 0:00:08]} 21. Be6 {[%emt 0:00:49]} Rxf3 {[%emt 0:00:55]} 22. b5 {[%emt 0:05:09]} Bxe6 {[%emt 0:11:10]} 23. Qxe6 {[%emt 0:00:09]} cxb5 {[%emt 0:00:03]} 24. axb5 {[%emt 0:02:28]} Raf8 {[%emt 0:00:59]} 25. Rd7 {[%emt 0:03:22]} Qc8 {[%emt 0:01:52]} 26. Ra1 {[%emt 0:02:56]} Qc3 {[%emt 0:03:23]} 27. Rad1 {[%emt 0:03:07]} Qc2 {[%emt 0:02:22]} 28. R7d2 {[%emt 0:07:54]} Qa4 {[%emt 0:02:48]} 29. Bg3 {[%emt 0:04:10]} Qxb5 {[%emt 0:02:10]} 30. Rd7 {[%emt 0:00:41]} R3f5 {[%emt 0:03:10]} 31. Qe7 {[%emt 0:04:24]} R8f7 {[%emt 0:00:32]} 32. Qxf7 {[%emt 0:01:27]} Rxf7 {[%emt 0:00:01]} 33. Rxf7 {[%emt 0:00:07]} Kg8 {[%emt 0:00:16]} 34. Rc7 {[%emt 0:02:20]} Bf8 {[%emt 0:00:28]} 35. Rd8 {[%emt 0:01:58]} Qb1+ {[%emt 0:00:59]} 36. Kg2 {[%emt 0:00:06]} Qe4+ {[%emt 0:00:47]} 37. f3 {[%emt 0:00:11]} Qxe3 {[%emt 0:00:32]} 38. Rcc8 {[%emt 0:00:15]} Qe2+ {[%emt 0:00:14]} 39. Bf2 {[%emt 0:00:15]} e4 {[%emt 0:00:30]} 40. Rxf8+ {[%emt 0:02:33]} Kg7 {[%emt 0:00:00]} 41. Rce8 {[%emt 0:33:24]} exf3+ {[%emt 0:01:39]} 42. Kg3 {[%emt 0:00:00]} Qd3 {[%emt 0:01:39]} 43. Rd8 {[%emt 0:00:00]} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.12"]
[White "Hilwerda, Jonas"]
[Black "Marszalek, Maciej"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2230"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,45,0,0,1,41,2,4,-12,-2,0,0,0,3,8,9,8,10,0,0,0,21,0,0,0,0,0,0,0,18,16]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 O-O 10. Be3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} f5 (10... Bg4 11. h3 Bh5 12. Qc2 Ba5 13. O-O Bxf3 14. gxf3 Nxc3 15. bxc3 Qd7 16. Kh2 Nxd4 17. cxd4 Qxb5 {½-½ (27) Karjakin,S (2754)-Harikrishna,P (2724) Jerusalem 2019}) 11. exf6 Nxc3 {The position is equal.} 12. f7+ $146 ({Predecessor:} 12. bxc3 Qxf6 13. Qb3 Qd6 14. Bd3 Bg4 15. Qc2 h6 16. Nh4 Ne7 {½-½ (44) Murariu,A (2495)-Iordachescu,V (2602) Mamaia 2019}) 12... Rxf7 13. bxc3 Bg4 14. Be2 $1 {With the idea Ng5.} Rf8 15. O-O Qf6 16. h3 Bh5 17. Nh2 Bxe2 18. Qxe2 Rae8 19. Qd3 Qf5 20. Qxf5 Rxf5 21. Nf3 h6 22. Rfe1 Ba5 23. Bd2 {Accuracy: White = 50%, Black = 79%.} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.13"]
[White "Gorbatov, Alexej"]
[Black "Sharma Isha"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2355"]
[BlackElo "2169"]
[Annotator "TA"]
[PlyCount "145"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,145,7,25,29,30,29,45,52,54,54,54,54,55,47,73,77,58,58,75,64,114,121,114,117,114,60,140,124,141,137,283,302,267,282,269,211,232,229,229,199,587,589,597,597,579,579,610,597,531,515,1439,687,608,310,305,301,281,247,597,607,461,167,145,144,152,145,150,91,81,69,90,76,153,86,102,118,93,45,45,45,45,45,45,45,45,45,45,45,56,27,27,27,29,29,83,76,73,22,22,34,895,59,59,59,329,329,322,291,216,85,89,58,59,59,981,943,1260,833,2906,2700,29976,29977,29977,29978,29978,29978,29977,29979,29980,29981,29981,29982,29982,29983,29983,29984,29984,29985]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 c6 4. Qd2 (4. e3 Nbd7 5. Bd3 g6 6. h3 Bg7 7. Nf3 O-O 8. O-O b6 9. e4 dxe4 10. Nxe4 Bb7 11. Re1 Nxe4 12. Bxe4 Nf6 13. Bd3 c5 14. dxc5 bxc5 15. Ne5 Qb6 {1-0 (48) Firouzja,A (2682)-Vidit,S (2707) Xingtai 2019}) 4... Bf5 5. f3 e6 6. g4 {D00: 1 d4 d5: Unusual lines} Bg6 7. h4 {aiming for h5.} h5 8. g5 {White is slightly better.} Ng8 9. e4 Bd6 10. Nge2 Ne7 11. O-O-O a5 $146 ({Predecessor:} 11... O-O 12. Bxd6 Qxd6 {0-1 (51) Borysiak,B (2182)-Przybyla,K (2144) Warsaw 2009}) 12. Bxd6 Qxd6 13. Nf4 $36 {[%mdl 2048] Black is under pressure.} O-O 14. Bd3 Qb4 15. exd5 exd5 16. Bxg6 fxg6 17. Rde1 (17. Rhe1 $16) 17... Rf7 (17... Na6 $14) 18. Re6 $1 $16 Nd7 19. a3 Qc4 (19... Qb6 $16 {was necessary.}) 20. b3 $1 $18 {[%cal Rb3c4]} Qa6 21. Rhe1 Nf5 22. Nxg6 Qa7 23. Ne7+ Nxe7 24. Rxe7 Raf8 $2 (24... Qb8 {is a better chance.} 25. Rxf7 Kxf7) 25. g6 Rxe7 26. Rxe7 Nf6 27. Na4 Re8 28. Qe3 Qb8 29. Nc5 b6 (29... Rxe7 $142 30. Qxe7 Qf8 31. Qe6+ Kh8 32. Nxb7 Ne8) 30. Qe6+ (30. Nd7 $142 Rxe7 31. Qxe7 (31. Nxb8 $2 {too greedy.} Rxe3 32. Nxc6 Rxf3 $19) 31... Nxd7 32. Qxd7) 30... Kh8 31. Rxe8+ Qxe8 32. Qxe8+ Nxe8 {[%mdl 4096] Endgame KN-KN} 33. Nd7 Nd6 $2 (33... b5 34. Ne5 Kg8 35. Nxc6 Kf8 36. Nxa5 Nd6) 34. Nxb6 Nf5 35. Nd7 $2 (35. a4) 35... Nxh4 36. Ne5 Nf5 37. c3 $1 ({Don't play} 37. Nxc6 $6 h4 $11) 37... h4 38. Kd2 (38. a4 $142 $1) 38... h3 $16 39. Ng4 Kg8 $1 40. Ke2 Nh4 41. Kf2 (41. f4 $142 $1) 41... Nxg6 42. Kg3 Kf7 43. Kxh3 Nf4+ 44. Kg3 Ne2+ 45. Kf2 Nxc3 46. Ne5+ {[%mdl 64] Double Attack} Ke6 47. Nxc6 Kd6 $1 {[%cal Rd6c6]} 48. Nxa5 {Threatens to win with Ke3.} Nb5 49. a4 Nxd4 50. Ke3 Nf5+ 51. Kd3 {Strongly threatening b4.} Kc5 (51... Nh4 $1 $11) 52. Nb7+ Kb4 53. a5 ({White should try} 53. f4 $16) 53... Kb5 $11 54. b4 {Black must now prevent f4.} Ne7 $2 {[%mdl 8192] [#]} (54... g5 $14) 55. Kc3 $2 (55. Nd6+ $1 $18 Kxb4 56. a6) 55... d4+ $14 56. Kb3 $1 g6 $2 {[%mdl 8192]} (56... Nc8 $14) 57. Nd6+ $18 Kc6 58. Nc4 Nd5 59. Na3 (59. a6 $18) 59... d3 $16 60. b5+ Kc5 61. b6 {Hoping for Nc4.} Nb4 $2 {[%mdl 8192]} (61... g5 $14 62. Kb2 Nb4) 62. Kc3 $18 Nc6 {[#]} 63. Nc4 $1 Nb4 64. Ne5 Kb5 65. b7 {White mates.} Na6 66. Nd7 Kxa5 67. b8=Q Nxb8 68. Nxb8 Kb5 69. Kxd3 {KN-KP} Kc5 70. Ke4 Kd6 71. Kf4 Ke6 72. Kg5 Kf7 73. Nc6 {Accuracy: White = 58%, Black = 38%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.14"]
[White "Nguyen, Alex Dac-Vuong"]
[Black "Vetokhin, Savva"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "2401"]
[BlackElo "2113"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,120,-9,-24,-19,-7,-14,-7,-38,-38,-86,-96,-111,-102,-111,-92,-121,-120,-137,-131,-137,-127,-141,-133,-137,-139,-178,-169,-171,-179,-189,-155,-209,-204,-226,-233,-231,-209,-263,-177,-190,-139,-218,-208,-358,-330,-382,-152,-289,-267,-334,-353,-432,-433,-608,-608,-608,-588,-604,-590,-743,-753,-736,-715,-720,-680,-802,-821,-1142,-1119,-947,-642,-614,-605,-596,-590,-759,-752,-670,-644,-720,-701,-736,-619,-1119,-1072,-1026,-1017,-971,-946,-906,-860,-5055,-2070,-5506,-1345,-4108,-797,-659,-630]} 1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. O-O Be7 8. a3 O-O 9. b4 Be6 10. d3 a5 11. b5 Nd4 12. Nxd4 exd4 13. Na4 {A29: English Opening: Four Knights Variation with 4 g3} Bd5 14. Nxb6 cxb6 15. Bh3 {The position is equal.} (15. Qa4 Bc5 16. Bxd5 Qxd5 17. Qc4 Qh5 18. Ra2 Rae8 19. Re1 Re6 20. e4 dxe3 21. fxe3 {½-½ (30) Plat,V (2556)-Babula,V (2556) Prague 2018}) 15... a4 16. Bf4 $146 ({Predecessor:} 16. e4 Bb3 17. Qh5 Ra5 18. f4 Qe8 19. Bb2 Rxb5 20. Qe2 Bc5 {0-1 (34) Newman,N (1887)-Gramstad,R (1667) IECC email 1998}) 16... Qe8 17. Qc1 Bc5 18. Qb2 Bb3 19. Bg2 Qd7 20. Bd2 Rfe8 21. Rfe1 Re7 22. Bg5 f6 23. Bd2 Rd8 24. h4 Qxb5 25. Bf3 Qd7 26. Bf4 b5 27. Rec1 (27. Reb1 $17 {was worth a try.}) 27... b6 $19 28. Qd2 Rde8 29. Qb2 Qe6 30. Bh5 g6 31. Bf3 Qd7 ({Black should play} 31... Qf5 $19 {aiming for ...g5.} 32. Bh6 Bd5 33. Bxd5+ Qxd5 34. Qxb5 Rxe2 35. Qxa4 Qh5 36. Qb3+ Kh8) 32. Rab1 (32. Re1 $17 {is a better defense.}) 32... Kg7 33. Kg2 (33. g4 {keeps fighting.}) 33... h6 34. Qd2 h5 $2 {[#]} (34... Bd5 $19 35. Be4 h5) 35. Qb2 (35. Rxb3 $17 axb3 36. Qb2) 35... Qf5 {Strongly threatening ...Bd5.} 36. Kg1 g5 37. hxg5 fxg5 {Black is clearly winning.} 38. Be4 (38. Rxc5 $142 bxc5 39. Bd6) 38... Rxe4 39. dxe4 Rxe4 40. Bc7 Re7 41. Bd6 Bxd6 42. Qxd4+ Qe5 43. Qxb6 Bxa3 44. Rc6 Qe4 45. Rxb3 axb3 46. Qxb5 Re5 47. Rc7+ Be7 48. Qxb3 Qxe2 49. Rc8 Qe1+ 50. Kg2 Qe4+ 51. Kh2 Re6 52. Qc3+ Qe5 53. Qxe5+ Rxe5 {[%mdl 4096] Endgame KRB-KR} 54. Kg2 Rc5 55. Ra8 Bf6 56. Ra7+ Kg6 57. Rb7 g4 {Played: Rc5-c2} 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.15"]
[White "Vatsal Singhania"]
[Black "Jurek, Josef"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "2230"]
[BlackElo "2235"]
[Annotator "NA"]
[PlyCount "105"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:10]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:19]} 3. Nd2 {[%emt 0:00:00]} Be7 {[%emt 0:00:27]} 4. Bd3 {[%emt 0:00:00]} c5 {[%emt 0:01:19]} 5. dxc5 {[%emt 0:00:00]} Nf6 {[%emt 0:00:58]} 6. Qe2 {[%emt 0:00:09]} O-O {[%emt 0:01:16]} 7. Ngf3 {[%emt 0:00:12]} a5 {[%emt 0:00:53]} 8. O-O {[%emt 0:01:20]} Na6 {[%emt 0:00:41]} 9. exd5 {[%emt 0:30:23]} exd5 {[%emt 0:10:15]} 10. c6 {[%emt 0:05:10]} bxc6 {[%emt 0:03:54]} 11. Ne5 {[%emt 0:00:11]} Bd6 {[%emt 0:07:49]} 12. Ndf3 {[%emt 0:00:22]} Qc7 {[%emt 0:03:37]} 13. Bf4 {[%emt 0:12:32]} Re8 {[%emt 0:03:55]} 14. Rfe1 {[%emt 0:03:36]} Nc5 {[%emt 0:04:41]} 15. Ng5 {[%emt 0:02:57]} Bg4 {[%emt 0:12:00]} 16. Qe3 {[%emt 0:09:00]} Bh5 {[%emt 0:03:40]} 17. Qg3 {[%emt 0:03:01]} h6 {[%emt 0:05:19]} 18. Nh3 {[%emt 0:02:08]} Nce4 {[%emt 0:03:36]} 19. Bxe4 {[%emt 0:07:56]} Nxe4 {[%emt 0:01:32]} 20. Rxe4 {[%emt 0:00:32]} dxe4 {[%emt 0:00:27]} 21. Ng4 {[%emt 0:00:13]} Bxf4 {[%emt 0:02:00]} 22. Nf6+ {[%emt 0:00:09]} Kh8 {[%emt 0:02:05]} 23. Nxf4 {[%emt 0:00:21]} gxf6 {[%emt 0:07:13]} 24. Ng6+ {[%emt 0:00:16]} Bxg6 {[%emt 0:01:09]} 25. Qxc7 {[%emt 0:00:07]} Rec8 {[%emt 0:02:58]} 26. Qf4 {[%emt 0:00:56]} Kg7 {[%emt 0:00:12]} 27. Rd1 {[%emt 0:00:15]} Ra7 {[%emt 0:05:21]} 28. Rd6 {[%emt 0:03:28]} f5 {[%emt 0:00:21]} 29. h4 {[%emt 0:00:14]} h5 {[%emt 0:01:34]} 30. Qe5+ {[%emt 0:01:17]} Kh7 {[%emt 0:00:40]} 31. a4 {[%emt 0:02:04]} Rb7 {[%emt 0:02:32]} 32. b3 {[%emt 0:00:04]} c5 {[%emt 0:02:00]} 33. Qd5 {[%emt 0:00:06]} Rb4 {[%emt 0:01:37]} 34. Rd7 {[%emt 0:02:42]} Kg7 {[%emt 0:01:28]} 35. Qe5+ {[%emt 0:00:48]} Kg8 {[%emt 0:02:20]} 36. Qf6 {[%emt 0:03:28]} Rbb8 {[%emt 0:00:46]} 37. Kh2 {[%emt 0:01:41]} c4 {[%emt 0:00:53]} 38. Kg3 {[%emt 0:00:38]} cxb3 {[%emt 0:01:14]} 39. cxb3 {[%emt 0:00:05]} e3 {[%emt 0:03:57]} 40. fxe3 {[%emt 0:00:13]} Rxb3 {[%emt 0:02:14]} 41. Kf4 {[%emt 0:30:50]} Rbc3 {[%emt 0:02:28]} 42. Rd8+ {[%emt 0:00:00]} Rxd8 {[%emt 0:00:19]} 43. Qxd8+ {[%emt 0:00:00]} Kh7 {[%emt 0:00:20]} 44. Qxa5 {[%emt 0:00:00]} Rc4+ {[%emt 0:02:39]} 45. Kf3 {[%emt 0:00:00]} Rxh4 {[%emt 0:01:06]} 46. Qb5 {[%emt 0:00:00]} Rh1 {[%emt 0:05:25]} 47. a5 {[%emt 0:00:00]} Ra1 {[%emt 0:00:44]} 48. a6 {[%emt 0:00:00]} h4 {[%emt 0:02:40]} 49. Qb7 {[%emt 0:00:00]} f4 {[%emt 0:03:16]} 50. exf4 {[%emt 0:00:00]} Ra3+ {[%emt 0:02:14]} 51. Kg4 {[%emt 0:00:00]} Kh6 {[%emt 0:01:15]} 52. a7 {[%emt 0:00:00]} h3 {[%emt 0:01:40]} 53. a8=Q {[%emt 0:00:00]} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.11"]
[White "Tancsa, Tamas"]
[Black "Jurek, Josef"]
[Result "1/2-1/2"]
[ECO "B44"]
[WhiteElo "2193"]
[BlackElo "2235"]
[Annotator "NA"]
[PlyCount "39"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:05]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:11]} 4. Nxd4 {[%emt 0:00:00]} Nc6 {[%emt 0:00:41]} 5. Nb5 {[%emt 0:02:41]} d6 {[%emt 0:00:42]} 6. c4 {[%emt 0:00:34]} Nf6 {[%emt 0:00:20]} 7. N1c3 {[%emt 0:00:23]} a6 {[%emt 0:00:23]} 8. Na3 {[%emt 0:00:23]} b6 {[%emt 0:00:35]} 9. Be3 {[%emt 0:01:45]} Bb7 {[%emt 0:00:36]} 10. f3 {[%emt 0:00:24]} Be7 {[%emt 0:00:58]} 11. Be2 {[%emt 0:01:27]} O-O {[%emt 0:00:54]} 12. O-O {[%emt 0:00:16]} Nb8 {[%emt 0:01:55]} 13. Qd2 {[%emt 0:00:29]} Nbd7 {[%emt 0:00:24]} 14. Nc2 {[%emt 0:01:31]} Qc7 {[%emt 0:01:46]} 15. Rac1 {[%emt 0:05:07]} Rac8 {[%emt 0:01:24]} 16. Nd4 {[%emt 0:00:52]} Qb8 {[%emt 0:01:52]} 17. Kh1 Rfe8 {[%emt 0:01:31]} 18. b4 {[%emt 0:01:18]} d5 {[%emt 0:19:56]} 19. cxd5 {[%emt 0:15:16]} exd5 {[%emt 0:01:41]} 20. Nxd5 {[%emt 0:01:57]} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.12"]
[White "Vetokhin, Savva"]
[Black "Vatsal Singhania"]
[Result "0-1"]
[ECO "B55"]
[WhiteElo "2113"]
[BlackElo "2230"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,118,19,28,0,0,0,0,-16,30,22,24,22,21,18,19,18,21,20,41,33,61,57,77,72,85,41,89,66,85,72,86,19,52,-167,-158,-181,-178,-180,-181,-192,-182,-281,-284,-281,-279,-356,-358,-359,-340,-358,-344,-348,-323,-295,-196,-204,-197,-173,-145,-141,-141,-142,-149,-531,-528,-610,-577,-752,-775,-829,-775,-12838,-12835,-5691,-1610,-12836,-12836,-12842,-12843,-12843,-12843,-12844,-12844,-12845,-12845,-12845,-12846,-12846,-12839,-12843,-12844,-12845,-12846,-12846,-12845,-12845,-12845,-12846,-12845,-12850,-12850,-12850,-12850,-12850,-12850]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 Nc6 6. c4 Qb6 7. Nc2 g6 8. Nc3 Bg7 9. Bd2 {B55: Sicilian: 2...d6 3 d4 cxd4 4 Nxd4 Nf6 5 f3} (9. Rb1 O-O 10. Be3 Qa5 11. Be2 Be6 12. b4 Qc7 13. Nb5 Qc8 14. Rc1 a5 15. a3 Nd7 16. O-O Nde5 17. Ncd4 axb4 18. axb4 Nxb4 19. Nxe6 fxe6 {1-0 (42) Yemelin,V (2571)-Korobov,A (2670) St Petersburg 2010}) 9... O-O 10. Rb1 Be6 11. Be3 {The position is equal.} Qd8 $146 ({Predecessor:} 11... Qc7 12. Qd2 Nd7 13. Be2 f5 14. exf5 Bxf5 15. O-O Qa5 16. b4 Qe5 {1-0 (29) Nielsen,V (2247)-Vesterli,M (2158) Taastrup 2018}) 12. Be2 Nd7 13. Nd4 Nxd4 14. Bxd4 Bxd4 15. Qxd4 Qb6 16. Qxb6 axb6 17. Kd2 f5 18. exf5 gxf5 19. b3 Nc5 20. Bd3 Rf6 21. Rhe1 Kf8 22. Re2 Bf7 23. f4 (23. Rbe1 $16) 23... e6 24. Rd1 $2 (24. Ke3 $14) 24... Bh5 $19 25. Bc2 Rg6 26. g3 Bxe2 27. Kxe2 Ke7 28. a4 (28. b4 $142 Na6 29. a3) 28... h5 29. Kf3 {[#]} h4 $1 30. Nb5 (30. gxh4 Rh8) 30... hxg3 31. hxg3 Rag8 32. Rg1 Rh6 33. Nd4 Rh2 34. b4 {[#]} Ne4 $1 35. Bxe4 fxe4+ 36. Kxe4 {[%mdl 4096] Endgame KRR-KRN} Rb2 37. Rh1 Rxb4 {[%mdl 64] Double Attack} 38. Rh7+ {[#]} Kf6 $1 39. Rh6+ $2 {[%mdl 8192]} (39. Rd7 $17 {nothing else works.}) 39... Rg6 {Black is clearly winning.} 40. Rxg6+ Kxg6 41. Nxe6 Rxc4+ {KR-KN} 42. Kd5 Rxa4 43. Kxd6 Kf5 44. Ng7+ Kf6 45. Ne8+ Kf7 46. Nc7 Rc4 47. Nb5 Kf6 48. Na3 Rc6+ 49. Kd5 Rc3 {[%mdl 64] Double Attack} 50. Nc4 b5 51. Nb6 Rc7 52. Kd4 Ke6 53. f5+ Kxf5 54. Nd5 Rc4+ 55. Kd3 Ke5 56. Ne3 Rc7 57. Nc2 Rg7 58. Kc3 Rg4 59. Ne1 Kd5 {Accuracy: White = 33%, Black = 65%.} 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.13"]
[White "Sharma Isha"]
[Black "Nguyen, Alex Dac-Vuong"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2169"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,108,25,22,0,0,0,0,0,91,95,71,0,20,29,23,22,52,-2,-20,-12,0,-18,-18,-27,0,-7,-11,-37,0,-37,0,0,0,0,31,27,43,13,70,63,49,0,0,0,14,2,6,-4,0,-47,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-42,0,0,0,-37,0,-64,0,0,0,0,0,0,0,-44,0,0,0,-54,0]} 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. exf6 Nxf6 10. Nf3 Bd6 11. O-O Qc7 12. Bg5 O-O 13. Bh4 Nh5 14. Rc1 {C06: French Tarrasch: 3...Nf6 4 e5 Nfd7 5 Bd3 main lines} (14. Qc2 h6 15. Bh7+ Kh8 16. Bg6 Nf4 17. Nxf4 Rxf4 18. Bg3 Rxf3 19. gxf3 Qe7 20. Rad1 Bd7 21. Qc3 Rf8 22. Bb1 Kg8 {1-0 (41) Artemiev,V (2653)-Onischuk,V (2615) Martuni 2016}) 14... Rxf3 15. gxf3 Bxh2+ 16. Kg2 {The position is equal.} Bd6 (16... Bf4 $1 $11) 17. Rh1 $16 g6 18. Bb1 $146 ({White should play} 18. Bg3 $16) ({Predecessor:} 18. Bg3 Nxg3 19. fxg3 Qg7 20. f4 Bd7 21. Qd2 Bb4 22. Qe3 Ba5 23. Rh2 Bb6 24. Rch1 h5 25. Bxg6 Qxg6 26. Rxh5 Bd8 27. Rh8+ Kg7 28. f5 {1-0 (28) Breckenridge,S (2291)-Camacho,C (2182) Richardson 2013}) 18... Nf4+ 19. Nxf4 Bxf4 20. Rc3 Qg7 21. Rd3 (21. Bg3 $14 Bxg3 22. fxg3) 21... Bd7 $11 22. Qb3 b6 23. Qd1 Rf8 24. Bg3 Qe7 25. Rh4 Bg5 26. Rh1 Bf6 {[%mdl 1024] Black has compensation.} 27. Rd2 Qg7 {[%cal Rf6d4]} 28. Bf4 $1 h5 {[%cal Rf6d4]} 29. Be3 Be8 30. Rg1 Be7 31. Qe2 Bd6 (31... Bf6 $11) 32. Kf1 Kh7 33. Rd1 (33. Rg5 $5 {[%cal Rg5h5]}) 33... Qf6 34. f4 Kh8 35. Rd2 Ne7 36. Rg3 Nf5 37. Rg1 (37. Bxf5 $5 Qxf5 38. Kg2 $11) 37... Ne7 38. Rg5 Bxf4 39. Bxf4 Qxf4 40. Qe5+ Qxe5 41. Rxe5 Rf6 42. Kg2 Nc6 43. Rg5 Kg7 44. Kg3 Nd8 45. Kg2 Rf4 46. Kg3 Rf6 47. Kg2 Rf4 48. Bc2 (48. Kg3 $11 Rf6) 48... b5 ({Better is} 48... Kf6 $15 49. Rg3 g5) 49. Kg3 Rf6 {[#] aiming for ...Nf7.} 50. Re5 Nc6 51. Rg5 Nd8 $36 {[%mdl 2048] Strongly threatening ...Nf7. Black fights for an advantage.} 52. Kg2 Rf4 53. Kg3 Rf6 {Hoping for ...Nf7.} 54. Kg2 Rf4 {Accuracy: White = 54%, Black = 40%.} ({Black should try} 54... Kh6 $15 55. Rg3 Nc6) 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.14"]
[White "Marszalek, Maciej"]
[Black "Gorbatov, Alexej"]
[Result "1/2-1/2"]
[ECO "D33"]
[WhiteElo "2314"]
[BlackElo "2355"]
[Annotator "NA"]
[PlyCount "67"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:00]} c5 {[%emt 0:00:01]} 4. cxd5 {[%emt 0:01:08]} exd5 {[%emt 0:00:03]} 5. Nc3 {[%emt 0:00:23]} Nf6 {[%emt 0:00:31]} 6. g3 {[%emt 0:00:08]} Nc6 {[%emt 0:00:05]} 7. Bg2 {[%emt 0:00:06]} cxd4 {[%emt 0:00:07]} 8. Nxd4 {[%emt 0:00:20]} Bc5 {[%emt 0:00:02]} 9. Nxc6 {[%emt 0:01:41]} bxc6 {[%emt 0:00:07]} 10. O-O {[%emt 0:00:09]} O-O {[%emt 0:00:12]} 11. Na4 {[%emt 0:01:16]} Bb6 {[%emt 0:04:01]} 12. Nxb6 {[%emt 0:00:31]} axb6 {[%emt 0:00:06]} 13. Qc2 {[%emt 0:04:11]} Bb7 {[%emt 0:07:28]} 14. Rd1 {[%emt 0:02:58]} Qe7 {[%emt 0:00:34]} 15. Bg5 {[%emt 0:04:26]} h6 {[%emt 0:03:35]} 16. Bxf6 {[%emt 0:01:38]} Qxf6 {[%emt 0:00:02]} 17. a4 {[%emt 0:02:20]} Rfd8 {[%emt 0:02:36]} 18. e3 {[%emt 0:07:55]} c5 {[%emt 0:09:41]} 19. a5 {[%emt 0:10:36]} Ra6 {[%emt 0:14:24]} 20. axb6 {[%emt 0:04:00]} Rxb6 {[%emt 0:07:16]} 21. Rab1 {[%emt 0:05:12]} c4 {[%emt 0:02:35]} 22. b3 {[%emt 0:05:00]} Rb4 {[%emt 0:07:43]} 23. bxc4 {[%emt 0:02:51]} Rxc4 {[%emt 0:00:02]} 24. Qa2 {[%emt 0:17:01]} Bc6 {[%emt 0:11:54]} 25. Qe2 {[%emt 0:05:07]} Ra4 {[%emt 0:08:25]} 26. Rbc1 {[%emt 0:00:43]} Bb7 {[%emt 0:02:06]} 27. Qc2 {[%emt 0:09:49]} Rc4 {[%emt 0:04:15]} 28. Qb1 {[%emt 0:00:41]} Rxc1 {[%emt 0:01:01]} 29. Qxc1 {[%emt 0:00:35]} Qb6 {[%emt 0:05:12]} 30. Qb1 {[%emt 0:00:28]} Qxb1 {[%emt 0:00:55]} 31. Rxb1 {[%emt 0:00:02]} Ba6 {[%emt 0:01:25]} 32. Rd1 {[%emt 0:00:58]} Bc4 {[%emt 0:00:01]} 33. Bf1 {[%emt 0:05:00]} Rc8 {[%emt 0:01:11]} 34. Rc1 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.15"]
[White "Strebkovs, Andrejs"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2278"]
[BlackElo "2230"]
[Annotator "NA"]
[PlyCount "81"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} g6 {[%emt 0:00:00]} 3. f3 {[%emt 0:00:50]} Bg7 {[%emt 0:00:00]} 4. e4 {[%emt 0:00:08]} d6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:14]} O-O {[%emt 0:00:07]} 6. Be3 {[%emt 0:00:04]} c5 {[%emt 0:00:12]} 7. dxc5 {[%emt 0:03:11]} dxc5 {[%emt 0:00:04]} 8. Qxd8 {[%emt 0:00:08]} Rxd8 {[%emt 0:00:02]} 9. Bxc5 {[%emt 0:00:17]} Nc6 {[%emt 0:00:06]} 10. Be3 {[%emt 0:04:34]} Be6 {[%emt 0:07:02]} 11. Rd1 {[%emt 0:08:17]} Nd7 {[%emt 0:07:46]} 12. Nd5 {[%emt 0:07:25]} Bxb2 {[%emt 0:16:33]} 13. Rb1 {[%emt 0:04:52]} Bxd5 {[%emt 0:11:34]} 14. cxd5 {[%emt 0:01:47]} Bc3+ {[%emt 0:00:07]} 15. Kf2 {[%emt 0:01:55]} Na5 {[%emt 0:00:42]} 16. Nh3 {[%emt 0:02:51]} a6 {[%emt 0:13:52]} 17. Nf4 {[%emt 0:06:12]} b5 {[%emt 0:03:06]} 18. Be2 {[%emt 0:01:53]} Rdc8 {[%emt 0:06:29]} 19. Rhc1 {[%emt 0:02:28]} Rc7 {[%emt 0:08:44]} 20. d6 {[%emt 0:01:08]} exd6 {[%emt 0:01:53]} 21. Nd5 {[%emt 0:00:08]} Rac8 {[%emt 0:00:04]} 22. Nxc7 {[%emt 0:06:33]} Rxc7 {[%emt 0:00:02]} 23. Bd2 {[%emt 0:01:14]} Bd4+ {[%emt 0:00:34]} 24. Ke1 {[%emt 0:02:00]} Nc4 {[%emt 0:02:07]} 25. Bxc4 {[%emt 0:04:57]} bxc4 {[%emt 0:00:02]} 26. Rb4 {[%emt 0:03:30]} Nb6 {[%emt 0:05:51]} 27. Bc3 {[%emt 0:02:06]} Bxc3+ {[%emt 0:02:02]} 28. Rxc3 {[%emt 0:00:04]} Rc6 {[%emt 0:00:05]} 29. Kd2 {[%emt 0:03:11]} g5 {[%emt 0:06:04]} 30. Ra3 {[%emt 0:02:36]} Nd7 {[%emt 0:00:59]} 31. Rba4 {[%emt 0:01:02]} Nc5 {[%emt 0:00:43]} 32. Rxc4 {[%emt 0:00:48]} Kg7 {[%emt 0:00:07]} 33. Rd3 {[%emt 0:05:32]} Kf6 {[%emt 0:01:00]} 34. Rd5 {[%emt 0:01:00]} Ke6 {[%emt 0:01:28]} 35. Rxg5 {[%emt 0:00:45]} f5 {[%emt 0:00:46]} 36. Ke3 {[%emt 0:03:20]} fxe4 {[%emt 0:00:05]} 37. fxe4 {[%emt 0:00:19]} Rb6 {[%emt 0:00:16]} 38. Rh5 {[%emt 0:01:24]} Rb2 {[%emt 0:00:26]} 39. Rh6+ {[%emt 0:01:11]} Ke5 {[%emt 0:00:13]} 40. Rd4 {[%emt 0:00:40]} Re2+ {[%emt 0:00:59]} 41. Kxe2 {[%emt 0:30:16] Kd5} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.11"]
[White "Hilwerda, Jonas"]
[Black "Tancsa, Tamas"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2230"]
[BlackElo "2193"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,61,6,-16,2,0,0,0,6,-1,50,27,28,33,68,68,66,60,47,43,127,120,311,224,223,218,397,270,301,239,279,244,235,233,375,363,381,379,455,435,6427,6616,6287,6279,5588,5685,1770,897,846,831]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 d6 {C45: Scotch Game} (8... Qe6 9. Nd2 a5 10. Nf3 Ba6 11. c4 Bb4+ 12. Bd2 Bxd2+ 13. Qxd2 Nb6 14. b3 c5 15. O-O-O Bb7 16. Bd3 {1-0 (60) Nepomniachtchi,I (2773)-Vidit,S (2722) Kolkata 2019}) 9. c4 Nb6 10. exd6 cxd6 {The position is equal.} 11. Be3 Ba6 (11... d5 $11) 12. Qc2 $146 ({Predecessor:} 12. Nd2 d5 13. Qg4 h5 14. Qg5 Qxg5 15. Bxg5 dxc4 16. O-O-O {1-0 (32) Wiese Jozwiak,M (2270)-Strzalka,J (2160) Poznan 1989}) 12... g6 13. Nd2 {[%cal Bb1d2,Bd2e4,Be4c5,Bc5b3][%mdl 32] [#] Strongly threatening c5.} Bg7 14. c5 Bxf1 15. Kxf1 {Threatens to win with Bg5.} Nd5 16. Bg5 $36 {[%mdl 2048] White is more active.} Qc7 ({Black should try} 16... Qb7 $1 $14) 17. Re1+ $16 Kd7 $2 (17... Kf8 $16) 18. Ne4 Rhe8 19. Rd1 ({Don't play} 19. cxd6 $6 Qb6 $14) 19... Be5 $2 (19... Rab8 {was necessary.}) 20. Rh3 f5 21. cxd6 Qb6 22. Nc5+ Kxd6 23. Nb3 Rab8 (23... Ke6 {keeps fighting.} 24. Qc4 Kf7) 24. h5 {Played: Rh3-d3} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.12"]
[White "Gorbatov, Alexej"]
[Black "Strebkovs, Andrejs"]
[Result "1/2-1/2"]
[ECO "D01"]
[WhiteElo "2355"]
[BlackElo "2278"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,-17,-21,0,34,33,43,12,10,16,33,28,37,44,60,24,60,77,127,115,124,114,107,74,83,65,70,66,55,59,80,78,77,67,76,81,86,83,83,52,51,53,55,47,51,14,14,14,14,14,14,14,14,14,14,14,20,8,11,12,22,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nc3 Nf6 3. Bf4 g6 4. Qd2 Bg7 5. Bh6 Bxh6 6. Qxh6 {D01: Veresov Opening} c5 7. dxc5 Qa5 {[#] Hoping for ...d4.} 8. O-O-O {White is slightly better.} Qxc5 {...d4 is the strong threat.} 9. e3 Nc6 10. Nge2 Bf5 11. Nd4 O-O-O 12. Bb5 $146 ({Predecessor:} 12. Nxf5 gxf5 13. Bd3 {1-0 (64) Grischuk,A (2810)-Dominguez Perez,L (2726) Beijing 2014}) 12... Ne4 13. Nxe4 Bxe4 14. Bxc6 $1 bxc6 15. f3 Bf5 16. Nxf5 gxf5 17. Rd3 Qd6 18. Qg7 f6 19. Qh6 Rdg8 20. g3 Kc7 21. Ra3 Ra8 22. Rd1 Rhb8 23. Rd4 ({Much weaker is} 23. Qxh7 $6 Qe5 $11) 23... Qe5 24. f4 Qe6 25. Qh5 a5 26. Qe2 Rb5 27. c4 Rc5 {The position is equal.} 28. Rc3 Rxc4 29. Rdxc4 dxc4 30. Qxc4 Qxc4 31. Rxc4 $11 {[%mdl 4096] Endgame KR-KR} Rb8 32. Kc2 e6 33. Kc3 h5 34. Ra4 Rb5 35. b4 axb4+ 36. Rxb4 Ra5 37. Kb3 Rd5 38. Kc2 Ra5 39. Kb3 Rd5 40. Kc2 Ra5 {Accuracy: White = 64%, Black = 80%.} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.13"]
[White "Nguyen, Alex Dac-Vuong"]
[Black "Marszalek, Maciej"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2401"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,106,33,26,4,10,0,15,10,12,-13,16,21,18,18,12,20,27,0,18,0,0,0,18,0,7,0,0,-78,-82,-95,-100,-94,-102,-102,-114,-168,-172,-231,-231,-235,-235,-239,-239,-239,-239,-239,-239,-312,-239,-242,-239,-258,-222,-324,-326,-437,-430,-417,-414,-417,-411,-389,-456,-481,-485,-479,-462,-471,-383,-521,-515,-541,-507,-694,-715,-1295,-812,-1095,-1061,-1461,-1489,-1481,-1390,-1260,-1148,-1979,-1781,-1194,-1957,-1677,-1367]} 1. c4 g6 2. g3 Bg7 3. Bg2 Nf6 4. Nc3 O-O 5. e4 d6 6. Nge2 c5 7. O-O Nc6 8. d3 Ne8 9. Be3 Nd4 10. h3 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} Nc7 11. Rb1 Rb8 12. b4 {The position is equal.} Bd7 13. f4 b6 14. Qd2 f5 15. bxc5 bxc5 16. Rxb8 Qxb8 17. Rb1 {[#]} Qd8 $146 ({Predecessor:} 17... Nxe2+ 18. Qxe2 {½-½ (28) Nevednichy,V (2593)-Nataf,I (2549) Budva 2003}) 18. Nd5 Nxe2+ 19. Qxe2 fxe4 20. dxe4 Ne6 21. f5 Nd4 22. Bxd4 (22. Qg4 $11) 22... Bxd4+ $17 23. Kh1 e6 $36 {[%mdl 2048] Black has strong initiative.} ({Much weaker is} 23... gxf5 $6 24. exf5 Kh8 25. Rb7 $11 (25. Nxe7 $2 Re8 $19) (25. Qxe7 Qxe7 26. Nxe7 Re8 $11)) 24. fxe6 Bxe6 25. Rf1 Be5 26. Rxf8+ (26. Nf4 $17 Qe7 27. Rf3) 26... Qxf8 $19 27. Kh2 {[#]} (27. Qe1 {is a better defense.}) 27... h5 $1 28. Qf3 h4 $1 {White must now prevent ...Qh6.} 29. Qxf8+ Kxf8 {[%mdl 4096] Endgame KBB-KBN} 30. Bf3 Bxg3+ 31. Kg2 Kf7 32. Be2 a5 33. Bf1 Bd7 34. Be2 Be1 35. Nb6 (35. Ne3 $142) 35... Bc6 36. Bf3 Ke6 37. Kf1 Bd2 38. Ke2 Bg5 39. Kd3 Ke5 40. Nd5 Bd7 41. Bg2 Bd8 42. Bf1 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 43. Bg2 Ba5 {Black is clearly winning.} 44. Bf1 a3 45. Ne3 Kf4 46. Nc2 Bb4 47. Bg2 Kg3 48. Bf1 Kf2 49. Ne3 Ba5 50. Bg2 Bd8 51. e5 Bg5 52. Bd5 Bxe3 53. e6 Be8 {Accuracy: White = 40%, Black = 88%.} 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.14"]
[White "Vatsal Singhania"]
[Black "Sharma Isha"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "2230"]
[BlackElo "2169"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,89,18,18,18,22,21,23,12,11,11,35,47,79,50,64,47,88,45,74,88,78,84,81,48,67,77,83,77,89,13,28,22,23,37,31,13,10,2,16,0,0,0,16,8,8,8,8,8,8,8,8,8,8,9,97,124,101,95,102,129,158,171,182,165,158,172,335,163,597,597,1818,1561,29960,5306,1859,340,333,326,333,318]} 1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Bd3 c5 5. dxc5 Nf6 6. Qe2 O-O 7. Ngf3 {C03: French Tarrasch: Unusual Black 3rd moves} a5 8. O-O Na6 9. e5 {White has an edge.} Nd7 10. c4 dxc4 (10... Ndxc5 11. Bb1 d4 12. Rd1 d3 13. Qe3 b6 14. Ne1 Bb7 15. Nxd3 {½-½ (57) Liang,A (2552)-So,W (2786) Saint Louis 2018}) 11. Nxc4 $146 ({Predecessor:} 11. Bxc4 Naxc5 12. Ne4 Nb6 13. Nxc5 Bxc5 14. Bd3 Nd5 15. Bxh7+ Kxh7 16. Ng5+ Kg8 17. Qh5 Nf6 18. exf6 Qd3 19. fxg7 Kxg7 20. Nf3 {1-0 (20) Bellia,F (2447)-Vrolijk,L (2265) Hoogeveen 2016}) 11... Ndxc5 12. Bc2 Nb4 13. Rd1 Qc7 14. Bg5 h6 15. Bxe7 Qxe7 16. a3 Nd5 17. Ne3 Rd8 18. Nxd5 exd5 19. Nd4 Qg5 20. Rac1 (20. Rf1 $16) 20... Bg4 21. f3 Ne6 $1 {[%cal Re6d4]} 22. Nxe6 Bxe6 23. Rd2 d4 24. Rcd1 Rac8 25. Qe4 g6 26. f4 Qg4 {Strongly threatening ...Bf5.} 27. h3 ({Wrong is} 27. Rxd4 $2 Rxd4 28. Rxd4 Bf5 $19) 27... Qg3 28. Rd3 ({Don't go for} 28. Rxd4 $2 Rxd4 29. Rxd4 Bf5 $1 $19 {[%mdl 512]}) 28... Qh4 29. Bb3 $1 {[%cal Rb3e6] Threatens to win with Bxe6.} ({Avoid the trap} 29. Rxd4 $2 Rxd4 30. Rxd4 Bf5 $19) 29... Bf5 30. Qxb7 Bxd3 31. Qxf7+ Kh8 32. Rxd3 Rf8 (32... Rg8 $1 $11 {remains equal.}) 33. Qxg6 $16 {And now Rg3 would win.} Qxf4 {[#]} 34. Rg3 $1 {[%csl Gg3][%cal Rg6g7]} Rc7 35. Bc2 Re7 36. b4 axb4 37. axb4 $40 {[%mdl 128] White goes for the king.} Rc8 38. Bd3 Qf8 $2 (38... Qc1+ {was necessary.} 39. Kh2 Qf4) 39. Kh2 (39. Qe4 $142) 39... Rcc7 $2 (39... Qf4 {is a better chance.} 40. b5 Rf8) 40. b5 $18 Rc5 41. b6 Rcxe5 42. Rf3 {[%cal Rf3f8]} Qg7 43. b7 $2 (43. Qd6 Re8 44. Rf6) 43... Rxb7 {aiming for ...Qxg6.} 44. Qd6 {Rf8+ would kill now.} Re8 {...Qe5+ is the strong threat.} 45. Rg3 {Accuracy: White = 62%, Black = 38%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.15"]
[White "Jurek, Josef"]
[Black "Vetokhin, Savva"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2235"]
[BlackElo "2113"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,65,20,48,43,45,56,56,65,56,56,65,36,33,27,62,37,52,52,66,61,70,72,68,41,46,41,41,45,38,35,39,42,48,15,15,3,55,24,25,0,35,37,74,14]} 1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. O-O Be7 5. c4 O-O 6. b3 c5 7. e3 Nc6 8. Bb2 b6 9. Nc3 Bb7 10. cxd5 Nxd5 11. Nxd5 Qxd5 12. d4 Qd8 13. dxc5 {A14: English Opening: 1...e6 with b3 by White} Bxc5 14. Ne5 Nxe5 15. Bxb7 {White is slightly better.} Rb8 {Threatening ...Nd3.} 16. Be4 Ng6 (16... Nd7 17. b4 Be7 18. Qa4 Nf6 19. Rfd1 Qe8 20. Qxe8 Rfxe8 21. Bc6 Red8 22. b5 Ng4 23. Rac1 Bf6 24. Ba3 Rxd1+ 25. Rxd1 Ne5 26. f4 Nc4 27. Bc1 Rd8 {½-½ (27) Reinderman,D (2573)-Gharamian,T (2626) Belgium 2017}) 17. Qxd8 Rfxd8 18. Rfd1 Kf8 $146 ({Predecessor:} 18... f6 19. Kf1 Kf7 20. Ke2 h6 {1-0 (89) Anwesh,U (2373)-Nayhebaver,M (2317) Lvov 2015}) 19. Kf1 f6 20. Ke2 Ke7 21. Rac1 (21. h4 {looks sharper.} Rbc8 22. h5 Nf8 23. Bd3 Bd6 24. f4) 21... Rbc8 22. Rxd8 Rxd8 23. Bc3 Nf8 24. b4 Bd6 25. f4 Nd7 26. a3 f5 27. Bf3 e5 28. Kf2 g6 29. Bb2 Bb8 (29... e4 $11 30. Be2 a5) 30. Rc2 Bd6 31. h3 h6 32. Be2 g5 {[%cal Rg5f4]} 33. Bc1 {Accuracy: White = 35%, Black = 29%.} ({White should try} 33. Bb5 $16) 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.11"]
[White "Tancsa, Tamas"]
[Black "Vetokhin, Savva"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2193"]
[BlackElo "2113"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,120,28,30,0,6,-37,8,0,0,-21,0,0,0,0,45,29,89,57,56,52,74,59,129,0,60,29,48,47,147,145,216,-203,-187,-204,-164,-239,-210,-204,-210,-281,-284,-248,-217,-270,-226,-550,-544,-537,-555,-499,-518,-579,-579,-571,-564,-541,-541,-539,-536,-654,-525,-636,-648,-606,-584,-552,-545,-419,0,-434,0,-340,0,-311,-428,-427,-398,-333,-318,-656,-618,-530,-522,-29958,-29962,-29991,-29992,-29992,-29988,-29993,-29989,-29988,-29989,-29987,-29965,-29961,-29959,-4808,-4731,-29997,-29996]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be7 8. Be3 Be6 9. Qd2 O-O 10. O-O-O Nbd7 11. g4 b5 12. Rg1 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (12. g5 Nh5 13. Kb1 Nb6 14. Na5 Rc8 15. a3 g6 16. h4 Ng3 17. Rg1 Nxf1 18. Rgxf1 Na4 19. Nxa4 bxa4 20. h5 Qd7 {0-1 (68) Aronian,L (2772)-Carlsen,M (2870) Kolkata 2019}) 12... Nb6 13. Qf2 Nc4 $146 ({Predecessor:} 13... Nfd7 14. f4 b4 15. Nd5 Bxd5 16. exd5 a5 17. fxe5 Bh4 18. Qg2 Nxe5 19. g5 a4 {½-½ (47) Hostinsky,J (2391)-Wojnar,M (2449) ICCF email 2012}) 14. Bxc4 $1 {The position is equal.} bxc4 15. Na5 Qd7 ({Don't blunder} 15... Qxa5 $2 16. Bb6 $18) 16. g5 Nh5 {White must now prevent ...Rfc8.} 17. Nd5 $36 {[%mdl 2048] White has some pressure.} Bxd5 18. exd5 Rac8 (18... c3 $11 {remains equal.}) 19. Kb1 g6 20. Nc6 f5 21. f4 e4 (21... Rxc6 $14 22. dxc6 Qxc6) 22. Bd4 (22. Qd2 $16) 22... Rfe8 (22... Rxc6 $11 23. dxc6 Qxc6) 23. Rgf1 $14 Bf8 24. Qe2 Bg7 ({Better is} 24... Rxc6 $14 25. dxc6 Qxc6) 25. Qxc4 $16 e3 (25... Ra8 $16 26. Rde1 a5 27. Bxg7 Nxg7) 26. Rde1 $4 {[%mdl 8192]} (26. Rfe1 $18 {is the narrow road to win.}) 26... Bxd4 $19 27. Qxd4 Re4 28. Qc3 (28. Qd3 $142 Rce8 29. Qxa6) 28... Nxf4 29. Rxf4 Rxf4 30. Ne7+ Qxe7 31. Qxc8+ {[%mdl 4096] Endgame KQR-KQR} Kf7 32. Qxa6 e2 33. a3 $2 (33. a4 {was the crucial defense.} Re4 34. Qd3) 33... Re4 34. Qd3 f4 35. Qf3 Qe5 36. Qh3 Kg7 37. Qd7+ Qe7 38. Qg4 h5 39. gxh6+ Kxh6 40. Qh3+ Kg7 41. Qg4 Qe5 42. Qd7+ Kh6 43. Qh3+ Qh5 44. Qc8 Qe5 45. Qh3+ $1 Kg7 46. Qd7+ $1 Qe7 47. Qg4 $1 g5 48. h4 Re3 49. hxg5 f3 {[#] aiming for ...f2.} 50. Qh4 $2 (50. Qf4 Kg6 51. a4) 50... Kg8 51. a4 Qe4 52. Qf2 Qd4 53. c3 Qd1+ 54. Ka2 Qxa4+ 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.12"]
[White "Sharma Isha"]
[Black "Jurek, Josef"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2169"]
[BlackElo "2235"]
[Annotator "NA"]
[PlyCount "63"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:08]} e6 {[%emt 0:00:16]} 3. g3 {[%emt 0:00:09]} Nc6 {[%emt 0:00:38]} 4. Bg2 {[%emt 0:00:17]} Nf6 {[%emt 0:00:41]} 5. Qe2 {[%emt 0:00:06]} d5 {[%emt 0:01:23]} 6. exd5 {[%emt 0:00:13]} Nxd5 {[%emt 0:00:16]} 7. O-O {[%emt 0:00:08]} Be7 {[%emt 0:01:00]} 8. Rd1 {[%emt 0:00:05]} Qb6 {[%emt 0:01:11]} 9. Nc3 {[%emt 0:11:41]} Nxc3 {[%emt 0:00:40]} 10. dxc3 {[%emt 0:00:24]} O-O {[%emt 0:03:35]} 11. Nd2 {[%emt 0:01:19]} Rd8 {[%emt 0:05:07]} 12. Nc4 {[%emt 0:00:18]} Rxd1+ {[%emt 0:01:13]} 13. Qxd1 {[%emt 0:00:05]} Qd8 {[%emt 0:03:20]} 14. Qxd8+ {[%emt 0:02:18]} Nxd8 {[%emt 0:00:32]} 15. Bf4 {[%emt 0:00:43]} f6 {[%emt 0:19:13]} 16. Bc7 {[%emt 0:04:29]} Nf7 {[%emt 0:14:59]} 17. Rd1 {[%emt 0:00:41]} e5 {[%emt 0:03:45]} 18. Ne3 {[%emt 0:03:22]} Kf8 {[%emt 0:06:11]} 19. f4 {[%emt 0:04:13]} Ke8 {[%emt 0:02:38]} 20. fxe5 {[%emt 0:07:26]} fxe5 {[%emt 0:05:01]} 21. Bd5 {[%emt 0:04:06]} Bf6 {[%emt 0:08:24]} 22. a4 {[%emt 0:02:41]} a5 {[%emt 0:02:28]} 23. Nc4 {[%emt 0:01:30]} Bg4 {[%emt 0:04:21]} 24. Re1 {[%emt 0:00:10]} Ra6 {[%emt 0:02:30]} 25. Bxb7 {[%emt 0:01:10]} Re6 {[%emt 0:02:56]} 26. Bd5 {[%emt 0:05:59]} Re7 {[%emt 0:00:21]} 27. Bb6 {[%emt 0:00:27]} Ng5 {[%emt 0:01:31]} 28. Bxc5 {[%emt 0:00:29]} Be6 {[%emt 0:03:32]} 29. Bc6+ {[%emt 0:02:15]} Bd7 {[%emt 0:00:09]} 30. Bxe7 {[%emt 0:03:58]} Bxc6 {[%emt 0:00:23]} 31. Nxe5 {[%emt 0:00:23]} Be4 {[%emt 0:04:06]} 32. h4 {[%emt 0:00:53]} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.13"]
[White "Marszalek, Maciej"]
[Black "Vatsal Singhania"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2314"]
[BlackElo "2230"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,31,8,10,0,0,0,0,0,6,0,0,0,13,0,-4,-12,0,-25,0,0]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Qb5 {E04: Open Catalan: 5 Nf3} (8. Bxb4 Ndxb4 9. O-O Rb8 10. Na3 O-O 11. Qb5 b6 12. Qxc4 Ba6 13. Nb5 Qe8 14. Rfc1 Nd5 15. e4 Na5 16. Nxc7 Bxc4 17. Nxe8 Rfxe8 18. exd5 Bxd5 {½-½ (34) Giri,A (2776)-So,W (2760) Kolkata 2019}) 8... Bxd2+ 9. Nbxd2 c3 10. bxc3 Nxc3 11. Qd3 Nd5 12. O-O O-O 13. Rfc1 Nde7 14. Nc4 h6 15. Rab1 $146 a5 16. e3 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.14"]
[White "Strebkovs, Andrejs"]
[Black "Nguyen, Alex Dac-Vuong"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2278"]
[BlackElo "2401"]
[Annotator "NA"]
[PlyCount "60"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:03:59]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:08]} c5 {[%emt 0:00:00]} 3. d5 {[%emt 0:00:12]} b5 {[%emt 0:00:00]} 4. cxb5 {[%emt 0:00:10]} a6 {[%emt 0:00:00]} 5. f3 {[%emt 0:00:51]} axb5 {[%emt 0:00:14]} 6. e4 {[%emt 0:00:08]} Qa5+ {[%emt 0:00:09]} 7. Bd2 {[%emt 0:00:56]} b4 {[%emt 0:00:44]} 8. Na3 {[%emt 0:00:15]} d6 {[%emt 0:00:08]} 9. Nc4 {[%emt 0:00:21]} Qd8 {[%emt 0:00:06]} 10. a3 {[%emt 0:01:14]} e6 {[%emt 0:00:08]} 11. dxe6 {[%emt 0:04:08]} Bxe6 {[%emt 0:00:11]} 12. axb4 {[%emt 0:01:14]} Rxa1 {[%emt 0:00:10]} 13. Qxa1 {[%emt 0:00:08]} d5 {[%emt 0:00:04]} 14. exd5 {[%emt 0:02:17]} Nxd5 {[%emt 0:00:11]} 15. b5 {[%emt 0:02:32]} Be7 {[%emt 0:05:15]} 16. Qa5 {[%emt 0:13:13]} Qc8 {[%emt 0:03:32]} 17. b3 {[%emt 0:03:55]} O-O {[%emt 0:03:28]} 18. Bd3 {[%emt 0:08:55]} Nb4 {[%emt 0:03:09]} 19. Be4 {[%emt 0:04:10]} Rd8 {[%emt 0:10:28]} 20. Nb6 {[%emt 0:06:22]} Qc7 {[%emt 0:00:17]} 21. Ne2 {[%emt 0:01:42]} Qd6 {[%emt 0:02:21]} 22. Bxb4 {[%emt 0:03:33]} Qd1+ {[%emt 0:01:09]} 23. Kf2 {[%emt 0:00:03]} Qxh1 {[%emt 0:00:09]} 24. Bd2 {[%emt 0:04:48]} Bh4+ {[%emt 0:01:46]} 25. g3 {[%emt 0:03:52]} Qxh2+ {[%emt 0:00:06]} 26. Ke3 {[%emt 0:00:12]} Bg5+ {[%emt 0:02:07]} 27. f4 {[%emt 0:00:52]} Bg4 {[%emt 0:00:14]} 28. fxg5 {[%emt 0:06:08]} Qxe2+ {[%emt 0:00:14]} 29. Kf4 {[%emt 0:00:02]} Rd4 {[%emt 0:02:19]} 30. Be3 {[%emt 0:05:42]} Qf3+ {[%emt 0:00:19]} 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.15"]
[White "Hilwerda, Jonas"]
[Black "Gorbatov, Alexej"]
[Result "0-1"]
[ECO "B28"]
[WhiteElo "2230"]
[BlackElo "2355"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,100,66,83,81,90,95,97,86,121,88,116,53,85,72,66,64,86,83,83,86,90,101,99,16,78,22,29,26,60,66,76,4,17,0,13,30,11,0,0,0,0,0,0,0,0,-109,-95,-117,-85,-93,-97,-230,-223,-230,-220,-228,-228,-222,-212,-264,-251,-359,-75,-68,-70,-192,-188,-306,-288,-300,-283,-275,-229,-460,-272,-263,-209,-295,-224,-224,-224,-345,-337,-484,-491,-588,-588,-4921,-4913,-29986,-29987,-29985,-29983]} 1. e4 c5 2. Nf3 a6 3. c3 d6 4. d4 Nd7 5. Bd3 Qc7 (5... g6 6. O-O Bg7 7. Re1 Qc7 8. Nbd2 e5 9. dxe5 dxe5 10. a4 b6 11. Nc4 Ngf6 12. Bc2 O-O 13. Qd6 Qxd6 14. Nxd6 {½-½ (30) Krastev,A (2323)-Iniyan,P (2497) Sitges 2019}) 6. a4 {B28: Sicilian: 2 Nf3 a6 (O'Kelly Variation)} b6 7. O-O Bb7 $146 ({Predecessor:} 7... Ngf6 8. Re1 e5 9. Nbd2 Bb7 10. Nf1 Be7 11. Ng3 O-O 12. Nf5 Rfe8 13. Nxe7+ Rxe7 {1-0 (43) Miljutin,O (2086)-Kireev,A (2139) Yuzhny 2011}) 8. Re1 {White is better.} e6 9. Nbd2 Ne7 {[#]} 10. Nf1 (10. d5 $1 $16) 10... g6 11. Be3 Bg7 12. Qd2 O-O 13. Bh6 c4 14. Bc2 e5 15. Ng3 Rfe8 16. Nh4 (16. Bxg7 $16 Kxg7 17. Red1) 16... Bh8 (16... Bf6 $11 17. Nf3 Nc6) 17. f4 (17. d5 $16) 17... exd4 $11 18. cxd4 Nc6 19. Nf3 $1 b5 20. Kh1 (20. a5 $16) 20... Qa5 {Threatens to win with ...Qxd2.} 21. Qf2 Qb6 $1 {[%cal Rc6d4]} 22. Rad1 Nb4 23. axb5 axb5 24. Bb1 Ra1 $36 {[%mdl 2048] Black fights for an advantage.} 25. Qd2 {[#]} Rxb1 $1 {[%mdl 512]} 26. Rxb1 Nd3 27. e5 (27. Rf1 $11) 27... dxe5 $17 ({Reject} 27... Nxe1 $6 28. Rxe1 f5 29. Nf1 $11) 28. dxe5 Nf2+ 29. Kg1 {[#]} Ng4+ $1 30. Qd4 (30. Kh1 $17 {was the only defense.}) 30... Nxh6 31. Qxb6 Nxb6 32. Nd4 b4 33. Nb5 Rb8 34. Red1 Nd5 35. Rd4 (35. Nd6 $142 c3 36. bxc3 Nxc3 {[%mdl 64] Double Attack} 37. Rxb4 Nxd1 38. Nge4) 35... g5 $2 (35... f6 $19 {has better winning chances.} 36. Re1 Ng4) 36. fxg5 Bxe5 37. Rxc4 (37. gxh6 $15 Bxd4+ 38. Nxd4) 37... Ba6 $19 38. Rc5 (38. gxh6 {was worth a try.} Bxb5 39. Re4) 38... Rxb5 39. Rxb5 Bxb5 40. gxh6 f6 41. Ra1 $2 (41. Rd1 {keeps fighting.} Ne3 42. Rd2) 41... Bd3 (41... Bxb2 $142 42. Rd1 Bc4) 42. Rd1 Bc4 43. Rc1 (43. Rd2 {was forced.}) 43... Nb6 44. b3 Bd5 45. Nf5 (45. Kh1 $142) 45... Bxb3 46. Rc6 (46. Ne7+ $142 Kf7 47. Nc6) 46... Nd7 47. Rc8+ Kf7 48. Rd8 Be6 49. Ng7 b3 50. Nxe6 Kxe6 {Accuracy: White = 33%, Black = 61%.} 0-1

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.11"]
[White "Gorbatov, Alexej"]
[Black "Tancsa, Tamas"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2355"]
[BlackElo "2193"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,44,0,21,-20,-13,-18,15,-10,-9,-13,4,-32,0,0,-18,-20,-6,-28,-15,-33,-46,-47,-21,-29,0,0,0,-2,0,0,10,14,23,23,23,23,30]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 c5 4. e3 cxd4 5. exd4 a6 6. Bd3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} (6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 Nc6 9. O-O-O e6 10. g4 Rc8 11. g5 Nd7 12. h4 Qb6 13. Qe3 {0-1 (28) Artemiev,V (2746)-Aronian,L (2758) chess.com INT 2019}) 6... Nc6 7. Nge2 g6 8. a3 {The position is equal.} Bg7 9. Qd2 O-O 10. Bh6 $146 ({Predecessor:} 10. h4 h5 11. f3 b5 12. Bh6 b4 13. Bxg7 Kxg7 {½-½ (36) Tran,M (2399)-Frayna,J (2320) Subic Bay 2016}) 10... Re8 11. Bxg7 Kxg7 12. O-O Qd6 13. Rad1 b5 (13... Rb8 {keeps more tension.} 14. f4 Bf5 15. Bxf5 gxf5 16. Na4 e6) 14. Qf4 Qxf4 15. Nxf4 Rd8 16. Nfe2 Bf5 17. Bxf5 gxf5 18. Nf4 e6 19. Nce2 Na5 20. Nd3 Rac8 21. c3 Nc4 22. Rfe1 Rc6 {Accuracy: White = 59%, Black = 40%.} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.12"]
[White "Nguyen, Alex Dac-Vuong"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2401"]
[BlackElo "2230"]
[Annotator "TA"]
[PlyCount "165"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,165,27,50,46,70,22,49,37,153,54,105,89,83,68,164,154,170,113,156,143,211,202,199,139,227,136,196,184,186,161,235,212,219,202,212,170,219,205,187,152,167,146,160,127,163,153,247,177,197,138,132,148,146,145,209,214,297,312,486,487,490,486,403,258,254,241,247,101,101,99,99,90,133,73,79,4,56,84,62,31,27,0,27,17,191,178,157,47,112,132,135,116,143,136,114,-24,-33,-37,-41,-222,194,187,1075,1054,1028,1028,985,959,921,274,257,251,564,566,550,534,483,360,785,758,747,741,814,795,795,722,781,712,712,693,712,694,656,650,960,865,707,646,29978,29979,29982,29983,29984,29985,29986,29987,29988,29989,29989,29990]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 Be6 10. Nc4 {B33: Sicilian: Pelikan and Sveshnikov Variations} Rb8 11. a4 Nd4 (11... Nb4 12. a5 d5 13. exd5 Nbxd5 14. Nxd5 Qxd5 15. Bxf6 gxf6 16. Qxd5 Bxd5 17. O-O-O {0-1 (54) Duda,J (2748)-Dubov,D (2676) Hamburg 2019}) 12. Ne3 {White is slightly better.} Qa5 $146 (12... Be7 $14) ({Predecessor:} 12... Rc8 13. Bd3 Be7 14. Bxf6 Bxf6 15. Ncd5 Bg5 16. c3 Nc6 17. O-O {0-1 (30) Koch,F (2058)-Kalinitschew,S (2469) Berlin 2008}) 13. Bd3 (13. Bxf6 $1 $16 {aiming for Bh4.} gxf6 14. Bd3) 13... Nd7 (13... Be7 $14) 14. Rb1 f6 15. Bh4 g5 (15... Nc5 $14) 16. Bg3 $18 h5 {Threatening ...h4.} 17. f3 (17. b4 $1 $18 {[%cal Rb4a5]} Qd8 18. h4) 17... Qd8 18. Ncd5 Nb6 (18... Nc5 $16) 19. c3 Nc6 20. h4 (20. Bf2 $18) 20... Bg7 (20... Bh6 $16) 21. Qb3 ({White should try} 21. Bf2 $18 Bxd5 22. exd5) 21... Bxd5 (21... Nxd5 $16 22. exd5 (22. Nxd5 Kf7 $16) 22... Bf7) 22. exd5 Ne7 23. Nf5 Bf8 (23... Kf8 {was called for.} 24. Bf2 Nbxd5) 24. Nxe7 Kxe7 25. hxg5 fxg5 26. Bg6 h4 27. Bf2 Nd7 28. Ba7 Rc8 29. Be3 (29. Qxb7 $2 Rc7 $17) 29... Bh6 30. Qxb7 Qa5 31. Bd3 $1 Ra8 (31... Qxa4 $16 {might work better.} 32. O-O Rb8) 32. Bf5 Qxa4 33. Qc6 (33. c4 $18 {Threatens to win with b3.} Rab8 34. Qc6 Qxc6 35. dxc6) 33... Qxc6 $16 34. dxc6 Nf6 35. c4 a5 (35... Nh5 $16) 36. c7 Nd7 37. c5 d5 (37... Nxc5 {was necessary.} 38. Bxc5 dxc5) 38. c6 $18 Nf6 39. Bc5+ Kf7 40. Bd6 Bg7 41. Kd2 Ne8 42. Bxe5 (42. c8=Q $18 Rxc8 43. Bxc8 Nxd6 44. Bg4) 42... Bxe5 $16 43. c8=Q Rxc8 44. Bxc8 Ke7 45. Kd3 ({Better is} 45. Kc2) 45... Nc7 46. Bd7 ({White should play} 46. Bb7 $1 $16) 46... Na6 (46... Rb8 $11) 47. Rhe1 $14 Kd6 48. Re2 Rb8 49. Kc2 Rb4 50. b3 Rb6 $2 (50... Rb5 $11) 51. Rbe1 $18 Nb4+ 52. Kb1 (52. Kd1 $1 $16 Bf4 53. Re6+ Kc7 54. Re7) 52... Bc3 (52... Bg3 $1 $14) 53. Re6+ $16 Kc7 54. R1e2 $1 d4 {...d3 is the strong threat.} 55. Re8 {Strongly threatening Rc8+.} d3 56. Rc8+ ({Only move:} 56. R2e6 $1 $16 {[%csl Gd7][%cal Re8c8]} Rb8 57. Rxb8 Kxb8 58. Be8) 56... Kd6 $15 57. Re6+ Kc5 {( -> ...d2)} 58. Rd8 $2 (58. Ra8 $1 $15 d2 59. Rxa5+ Kd4 60. Rd6+ Ke3 61. Rxd2 (61. Rxg5 Ra6 62. Re5+ Bxe5 63. Rd3+ Nxd3 64. Kc2 Ne1+ {[%mdl 64] Double Attack} 65. Kd1 Ra1#) 61... Nxc6 62. Rc5 Bxd2 63. Rxc6 Rxb3+ 64. Kc2) 58... Nd5 $4 {[%mdl 8192] [#]} (58... d2 $1 $19 {[%cal Rd2d1] and life is good for Black.} 59. Be8 Bd4 60. Rxd4 Kxd4 61. Rd6+ Kc3 62. Rxd2 Rxc6) 59. c7 $1 $18 {[%cal Rc7c8]} Rxb3+ $2 {[#]} (59... Nxc7 60. Rxb6 Kxb6) 60. Ka2 $1 (60. Kc1 {is a self mate.} d2+ 61. Kc2 Rb2+ 62. Kd1 Rb1+ 63. Ke2 d1=Q+ 64. Kf2 Qf1#) 60... Rb2+ 61. Ka3 Nxc7 62. Rc6+ {[%mdl 64] Double Attack} Kd4 63. Be6+ $2 (63. Rxc7 Ke3 64. Rxc3 Rxg2 65. Bg4) 63... Ke5 64. Rxc7 ({Less strong is} 64. Rxc3 Nxe6 65. Kxb2 Nxd8 $14) 64... Kxe6 $2 (64... Rc2 {is tougher.}) 65. Rxc3 Rxg2 66. Rcxd3 h3 67. Rh8 Rg3 $2 (67... h2 68. Rdd8 Ke5) 68. Rb3 Ke5 69. Ka4 Kf4 70. Rf8+ Ke5 71. Kxa5 h2 72. Rh8 Rg2 73. Rh3 Kf4 74. Rb4+ Kf5 75. Kb5 Rg3 76. Rxh2 ({Worse is} 76. Rxg3 h1=Q $11) 76... Rxf3 77. Rg2 Rf4 78. Rxf4+ {White mates.} gxf4 79. Kc4 Ke4 80. Re2+ Kf3 81. Kd3 Kg3 82. Ke4 f3 83. Re3 {Accuracy: White = 38%, Black = 28%.} 1-0

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.13"]
[White "Vatsal Singhania"]
[Black "Strebkovs, Andrejs"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2230"]
[BlackElo "2278"]
[Annotator "NA RC"]
[PlyCount "10"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:00]} dxe4 {[%emt 0:00:00]} 4. Nxe4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 5. Nxf6+ {[%emt 0:00:16]} exf6 {[%emt 0:00:00]} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.14"]
[White "Jurek, Josef"]
[Black "Marszalek, Maciej"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2235"]
[BlackElo "2314"]
[Annotator "NA RC"]
[PlyCount "13"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. g3 {[%emt 0:00:00]} g6 {[%emt 0:00:11]} 3. Bg2 {[%emt 0:00:17]} Bg7 {[%emt 0:00:05]} 4. O-O {[%emt 0:00:17]} O-O {[%emt 0:00:34]} 5. d4 {[%emt 0:00:39]} d5 {[%emt 0:01:31]} 6. Bf4 {[%emt 0:00:39]} c6 {[%emt 0:00:43]} 7. Qc1 {[%emt 0:00:14]} 1/2-1/2

[Event "Marienbad Open IM2 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.15"]
[White "Vetokhin, Savva"]
[Black "Sharma Isha"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2113"]
[BlackElo "2169"]
[Annotator "TA"]
[PlyCount "164"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,164,7,15,5,0,19,19,24,15,17,8,26,22,18,14,6,0,0,-2,33,29,40,15,38,37,32,27,47,27,30,1,28,0,0,-8,0,-6,-6,-4,-17,-34,-27,-30,-3,-32,-33,-29,0,-5,-10,-15,-5,-11,0,-15,-2,0,0,-74,-70,-78,-83,-66,-72,-70,-64,-117,-122,-187,-138,-172,-158,-189,-187,-168,-177,-182,-184,-177,-37,-109,-11,-90,-7,-5,0,0,0,-6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,6,6,7,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. exf6 Nxf6 10. Nf3 Bd6 11. O-O Qc7 12. Bg5 O-O 13. Bh4 Nh5 14. Qc2 h6 15. Bg6 Rxf3 {C06: French Tarrasch: 3...Nf6 4 e5 Nfd7 5 Bd3 main lines} 16. Bxh5 (16. gxf3 Bxh2+ 17. Kh1 Nf4 18. Ng3 e5 19. Rad1 Qd6 20. Bh7+ Kh8 21. dxe5 Nxe5 22. Be4 Bh3 23. Kxh2 {½-½ (32) Kotronias,V (2622)-Gurevich,M (2633) Kusadasi 2006}) 16... Rf8 17. Bg3 Bd7 18. Qd2 Rf6 19. Rad1 $146 ({Predecessor:} 19. Bxd6 Qxd6 20. f4 Be8 21. Bxe8 Rxe8 22. Rac1 Qd8 23. Rf3 {½-½ (47) Schaefer,M (2369)-Feygin,M (2481) Germany 2005}) 19... a6 20. Bg4 Raf8 21. Bxd6 Qxd6 22. f4 Ne7 23. g3 Nf5 24. Nc3 Rc8 25. Rfe1 Ne7 26. Qe3 Qb4 27. Rd2 Rc4 28. a3 Qb6 29. Red1 Be8 30. Kg2 Bg6 31. Be2 Rc8 32. Bd3 Bxd3 33. Qxd3 Nf5 34. Na4 Qb5 35. Nc3 Qb3 36. Kg1 {Hoping for Ne4.} Qc4 37. Qf3 Qb3 38. Qd3 Kh8 39. Qe2 Qc4 40. Qf2 b5 41. Ne2 Qb3 42. Nc1 Qa4 43. Ne2 {[#]} (43. Qe1 $11 {remains equal.}) 43... Nd6 $1 $17 44. Rd3 Rc2 $36 {[%mdl 2048] Black has strong initiative.} 45. Nc3 Ne4 46. Qe1 Nxc3 47. bxc3 (47. Rxc3 $15 Rxb2 48. Rd2 Rxd2 49. Rc8+ Kh7 50. Qxd2) 47... Qxa3 48. Qe3 (48. Rf3 $17) 48... Qb2 49. R1d2 Qc1+ 50. Rd1 Qxe3+ 51. Rxe3 $19 {[%mdl 4096] Endgame KRR-KRR} a5 52. Rb1 a4 53. Rxb5 a3 ({Black should try} 53... Rf7 $19 {Threatens to win with ...Ra7.} 54. Kf1 Rxh2) 54. Re1 ({Better is} 54. Ra5 $15) 54... g5 (54... Rf8 $17 55. Ra5 Rb8 56. Rxa3 Rbb2) 55. Ra5 $1 $11 gxf4 ({Black should play} 55... Rxc3 $17 56. fxg5 hxg5) 56. Rxa3 {The position is equal.} f3 {[#] ...f2+ is the strong threat.} 57. Rf1 Rd2 58. Ra6 Kg7 59. Rf2 Rd1+ 60. Rf1 Rd3 61. Rc6 Kg6 62. c4 Rxd4 63. cxd5 Rxd5 64. Rc3 Rdf5 65. Kf2 Rh5 66. h4 Ra5 67. Kg1 Raf5 68. Kf2 Rb5 69. Kg1 Kh5 {And now ...Kg4 would win.} 70. Rfxf3 Rxf3 71. Rxf3 {KR-KR} Kg4 72. Rf6 e5 (72... Kxg3 $5 73. Rg6+ $8 Kf4 $11) 73. Rxh6 Rb2 74. Rg6+ Kf3 75. h5 e4 76. Rf6+ Kg4 77. h6 {aiming for h7.} Rb7 78. Kf2 Kg5 79. Re6 Rf7+ 80. Ke3 Rf3+ 81. Kxe4 Rxg3 82. h7 Rh3 {Accuracy: White = 48%, Black = 47%.} 1/2-1/2

