[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.6"]
[White "Stigar, Petter"]
[Black "Plischki, Sebastian"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2217"]
[BlackElo "2387"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,51,16,12,12,10,26,21,19,20,30,20,29,35,18,22,60,57,61,55,85,83,110,66,74,58,85,58,60,58,68,58,58,58,58,58,58,58]} 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 Bf5 5. Bd3 Bxd3 6. Qxd3 e6 7. Nc3 Bb4 8. Bd2 O-O 9. O-O a5 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5} (9... Ba5 10. b3 Nbd7 11. Rfe1 Re8 12. a3 h6 13. b4 Bc7 14. e4 Nb6 15. cxd5 cxd5 16. e5 Nfd7 17. Rec1 {0-1 (37) Abdusattorov,N (2598)-Shankland,S (2713) Biel 2019}) 10. a3 Bxc3 11. bxc3 Nbd7 {The position is equal.} 12. cxd5 cxd5 $146 ({Predecessor:} 12... exd5 13. c4 Nb6 14. cxd5 cxd5 15. Rfb1 Ne4 16. Be1 Nd6 17. Ng5 {1-0 (41) Zhukova,N (2459)-Gunina,V (2508) Khanty-Mansiysk 2014}) 13. c4 Nb6 14. cxd5 Qxd5 15. Ne5 Rfd8 {[#] aiming for ...Qxe5!} 16. Rfb1 {Strongly threatening Nxf7.} Qxe5 17. Rxb6 Qc7 18. Rab1 Ra7 19. e4 Nd7 20. R6b5 b6 21. Be3 Raa8 {White is slightly better.} 22. d5 exd5 23. exd5 {[%cal Re3b6]} Qd6 24. Bxb6 Nxb6 25. Rxb6 Qxd5 26. Qxd5 {Accuracy: White = 79%, Black = 50%.} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.7"]
[White "Sernecki, Franciszek"]
[Black "Tymrakiewicz, Rafal"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2204"]
[BlackElo "2254"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,103,35,36,43,89,85,101,58,68,58,73,67,102,92,95,89,83,79,100,65,77,68,76,77,83,69,99,86,106,92,101,78,106,36,79,64,67,59,67,73,68,59,54,66,58,65,71,72,70,63,254,256,276,265,428,381,398,189,212,167,193,171,202,202,203,197,612,570,525,421,441,438,511,479,434,397,890,862,1281,558,1752,1509,2208,2014,29991,29992]} 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nf3 e5 5. Nc3 exd4 6. Nxd4 Nf6 7. Be2 O-O 8. O-O Re8 9. f3 Nc6 10. Be3 Nd7 11. Qd2 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves} Nde5 12. Rad1 Bd7 13. Kh1 $146 {White is better.} ({Predecessor:} 13. Rfe1 Nxd4 14. Bxd4 Bc6 15. b4 b6 16. Bf1 a5 17. a3 axb4 18. axb4 {½-½ (56) Van Wely,L (2610)-Schoppen,C (2508) Amstelveen 2019}) 13... a6 14. b3 Rc8 15. Nc2 b6 16. Nd5 f6 17. h3 Nf7 18. g4 a5 19. Kh2 Ng5 20. Qe1 Ne6 21. Qg3 Nc5 22. Kh1 Be6 23. Bc1 Rf8 24. Bb2 Ra8 25. Qg2 Re8 26. Rde1 ({White should try} 26. f4 $16) 26... Bxd5 27. cxd5 ({Don't play} 27. exd5 $6 Nb4 $11) 27... Nb4 $1 {[%cal Rb4c2]} 28. Nd4 Nbd3 29. Bxd3 Nxd3 30. Rd1 {[%cal Be1d1,Bd1d4,Bd4c4,Bc4c2,Bc2f2,Bf2f3][%mdl 32]} Nxb2 31. Qxb2 f5 32. gxf5 Qh4 33. Qg2 $36 {[%mdl 2048] White is in control.} Bxd4 34. Rxd4 {Threatens to win with Rc4.} Kf7 $2 (34... Re7 $14) 35. Rc4 $18 {Black must now prevent e5.} Qe7 36. Rfc1 Ra7 $2 (36... Rac8 37. fxg6+ hxg6) 37. fxg6+ hxg6 {[#]} 38. Rg1 (38. e5 $142 $1 {[%mdl 512]} Rh8 (38... dxe5 39. Rc6) 39. e6+ Ke8 40. Qxg6+ Kd8 41. Qg4) 38... Qf6 39. Rc2 Rh8 40. f4 Kf8 41. Rf2 c5 42. dxc6 Qc3 $2 (42... Rah7 43. Rf3 Qe6) 43. Rf3 Qxc6 44. Qxg6 {aiming for Qf6+.} Rah7 45. Kh2 Qd7 {[%cal Rh7h3]} 46. Qf6+ Ke8 {[%cal Rh7h3]} 47. f5 Rf8 $2 (47... Qe7 48. Qd4 Qe5+ 49. Qxe5+ dxe5) 48. Qg6+ Kd8 49. Rc3 {Played: Rg1-d1} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.8"]
[White "Steiner, Bruno"]
[Black "Abhilash, Reddy M.L."]
[Result "1-0"]
[WhiteElo "2117"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "2"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 2,2,25]} 1. d4 $146 d5 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.9"]
[White "Roesemann, Rainer"]
[Black "Vagman, Roy"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2231"]
[BlackElo "2089"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,100,0,0,-11,-1,-11,-11,-11,-14,-18,0,-8,54,84,80,-49,-49,-49,-49,-49,-44,-44,-43,-35,-41,-104,-95,-108,-104,-106,-96,-196,-117,-112,-117,-219,-216,-234,-216,-231,-228,-252,-252,-245,-252,-229,-230,-250,-248,-290,-184,-220,-218,-479,-472,-463,-454,-469,-442,-481,-480,-783,-799,-783,-787,-745,-737,-734,-747,-843,-851,-834,-854,-1139,-844,-1307,-1331,-1183,-911,-1366,-2679,-12841,-12837,-29986,-29987,-29987,-29988,-29988,-29989,-29994,-29995,-29995,-29996]} 1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 Nc6 5. Nd2 Bf5 (5... Bg4 6. Ngf3 e6 7. Qb3 Qc8 8. Bb5 Nd7 9. O-O a6 10. Be2 Be7 11. Qd1 O-O 12. a4 Qd8 13. Qb1 Bf5 14. Bd3 Bxd3 15. Qxd3 {½-½ (52) Artemiev,V (2746)-Hovhannisyan,R (2639) Douglas 2019}) 6. Qb3 {D00: 1 d4 d5: Unusual lines} Qc8 7. Ngf3 c4 8. Qd1 {The position is equal.} h6 9. b3 b5 10. Ne5 $146 ({Predecessor:} 10. a4 b4 11. bxc4 bxc3 12. Nb3 Nb4 {0-1 (28) Ananmay,S (1734)-Neelash,S (2334) Ahmedabad 2019}) 10... e6 ({Black should try} 10... Nxe5 $11 11. Bxe5 e6) 11. bxc4 $14 dxc4 12. Bxc4 (12. a4 $1 $16) 12... Nxe5 $1 $15 ({Of course not} 12... bxc4 $6 13. Qa4 $14) 13. dxe5 bxc4 14. exf6 Bd3 $1 15. Be5 gxf6 16. Bxf6 Rg8 17. Qf3 (17. Nf3 $15) 17... Rb8 $17 18. h4 Qb7 19. Rd1 {Black should prevent Qxb7.} Qxf3 ({But not} 19... Rxg2 $6 20. Qxb7 Rxb7 21. Nxc4 $1 $11 {[%mdl 512]}) 20. gxf3 (20. Nxf3 $17 Rg6 21. Be5) 20... Ba3 (20... Rb2 $19 21. a4 Rg2) 21. Ne4 Rg2 22. Rxd3 (22. h5 $17) 22... cxd3 $19 23. Kd2 {[#]} Be7 $1 24. Kxd3 Bxf6 25. Nxf6+ {[%mdl 4096] Endgame KRR-KRN} Ke7 26. Ng4 {White wants to play Ke2.} h5 27. Ne5 {Black must now prevent Nc6+.} Rb2 28. a4 Rgxf2 ({Resist} 28... Rbxf2 29. Rb1) 29. f4 a6 30. Kc4 Rfe2 31. Rd1 $2 (31. Rg1 Rb7 32. Kd3) 31... Rxe3 32. Rd7+ Ke8 {Hoping for ...Rxe5!} 33. Ra7 Re4+ {[%mdl 64] Double Attack} 34. Kc5 Rxf4 35. Rxa6 (35. Nc4 $142 Ra2 36. Nd6+ Kf8 37. c4) 35... Rf5 36. Kd4 Rd2+ 37. Ke3 Rh2 38. Ra8+ Ke7 39. Ra7+ Kf8 40. Nd7+ Kg7 41. c4 Rh3+ 42. Kd4 Rxh4+ 43. Kc3 Rh3+ 44. Kb4 Rh1 45. c5 Rb1+ 46. Ka5 h4 {Black mates.} 47. Ka6 h3 48. c6 h2 49. c7 h1=Q {[%cal Rh1f1]} 50. Nb6 {[#]} Qc6 $1 {Accuracy: White = 25%, Black = 87%.} 0-1

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.18"]
[Round "1.10"]
[White "Grabarczyk, Miroslaw"]
[Black "Michalek, Jan"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "2366"]
[BlackElo "2251"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,34,47,42,45,64,50,11,12,0,6,0,12,0,23,-18,-18,-18,-20,-37,-36]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c5 5. d5 b5 6. Bg2 d6 7. O-O O-O 8. cxb5 a6 9. bxa6 Nbd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32] E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3} (9... Bf5 10. Nc3 Ne4 11. Nxe4 Bxe4 12. Nd2 Bxg2 13. Kxg2 Qa5 14. Nc4 Qxa6 15. Qc2 Nd7 16. a4 Rfb8 17. Ra3 Nb6 18. Nxb6 Rxb6 {½-½ (48) Ding,L (2801)-Vachier Lagrave,M (2780) London 2019}) 10. Nc3 Nb6 11. Ne1 Nfd7 {The position is equal.} 12. Nc2 Nc4 13. Ne3 Nde5 $146 ({Predecessor:} 13... Ndb6 14. Nxc4 Nxc4 15. Qc2 Bxa6 16. Bd2 Qa5 17. Rfb1 Nxd2 18. Qxd2 {1-0 (77) Schaffer,H (2236)-Kersten,U (2245) Germany 2017}) 14. Qc2 Qa5 15. a3 Nxe3 16. Bxe3 Nc4 17. Bc1 Bxa6 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.6"]
[White "Plischki, Sebastian"]
[Black "Michalek, Jan"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2387"]
[BlackElo "2251"]
[Annotator "ChessBase"]
[PlyCount "16"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.7"]
[White "Vagman, Roy"]
[Black "Grabarczyk, Miroslaw"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "2089"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,19,30,28,21,16,65,18,54,21,30,23,27,0,0,-10,-6,-9,-9,-9,-4,-14,-13,-27,-29,-26,-33,-34,-34,-35,-22,-21,-7,-11,-4,-33,-16,-21,-20,-20,-17,-22,-7,-14,-14,-37,0,-55,0,-45,0,-24,0,-43,-43,-251,-217,-248,-240,-672,-680,-584,-693,-699,-641,-600,-648,-627,-607,-595,-487,-1414,-1455,-1386,-1408,-1393,-1325,-1274,-1288,-1322,-1189,-1192,-1177,-1131,-1063,-1008,-893,-1387,-1553,-2157,-1863,-2361,-2370,-29980,-29981]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Be2 d6 (4... d5 5. exd5 Nxd5 6. O-O Nxc3 7. bxc3 e4 8. Ne1 Bd6 9. f3 f5 10. fxe4 fxe4 11. Rb1 Qe7 12. d4 exd3 13. cxd3 Bd7 14. Rxb7 O-O-O 15. Rb2 {1-0 (29) Van Foreest,J (2629)-Giri,A (2752) Amstelveen 2017}) 5. O-O Be7 6. d4 {C47: Scotch Four Knights and Four Knights with 4 g3} O-O 7. h3 Bd7 8. Re1 {White is slightly better.} (8. d5 $5 {[%cal Rd5c6]} Nb8 9. Be3 $14) 8... Re8 9. Bf1 h6 10. dxe5 $146 ({Predecessor:} 10. b3 Bf8 11. Bb2 exd4 12. Nxd4 {1-0 (23) Markovic,V (2251)-Petkovic,R (2274) Kragujevac 2010}) 10... Nxe5 11. Nxe5 dxe5 12. Nd5 Bc5 13. Nxf6+ Qxf6 14. Be3 Bxe3 15. Rxe3 Red8 16. Qf3 Qxf3 17. Rxf3 Be6 18. Rc3 c6 19. Rd3 Rxd3 20. Bxd3 $15 {[%mdl 4096] Endgame KRB-KRB} c5 21. b3 Rd8 22. Rd1 b5 23. Be2 Rxd1+ 24. Bxd1 $11 {KB-KB} f6 25. Kf1 b4 26. Be2 Kf8 27. Bb5 f5 28. f3 (28. exf5 $11 Bxf5 29. Bd3 Bxd3+ 30. cxd3) 28... Ke7 ({Black should try} 28... f4 $15) 29. Ke2 Kd6 30. Kd3 a5 31. g4 fxg4 32. hxg4 $2 (32. fxg4 $15 h5 33. gxh5) 32... Bf7 33. Ke3 {[#]} Ke6 $1 34. f4 $2 (34. Kd3 Kf6 35. Bc6) 34... exf4+ $19 35. Kxf4 g5+ 36. Ke3 {intending Bc4+.} Ke5 37. Be2 Bg6 38. Bf3 Be8 39. Be2 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 40. Bf3 (40. c4 $142 bxc3 41. bxa4 Bxa4 42. Ba6) 40... a3 41. Be2 Bc6 42. Bf3 Bd7 43. Be2 Be6 44. Kd3 Bc8 45. Ke3 Bb7 46. Bf3 Bc6 47. Bg2 Be8 48. Kd3 Bd7 49. Bf3 Kf4 50. Bh1 Bb5+ 51. c4 Bd7 {Accuracy: White = 18%, Black = 55%.} 0-1

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.8"]
[White "Abhilash, Reddy M.L."]
[Black "Roesemann, Rainer"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2258"]
[BlackElo "2231"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,103,11,41,29,32,31,32,9,16,9,9,15,25,37,30,35,35,17,54,47,79,85,79,65,60,41,24,23,54,13,45,40,39,38,43,48,41,15,17,-18,18,24,60,45,43,45,43,31,43,33,35,39,39,36,66,66,67,49,203,61,201,200,367,343,403,406,393,397,381,379,522,516,620,619,765,737,758,548,494,434,428,402,1225,1065,886,819,29962,29963,8107,8107,29971,29971,29957,29959,5297,2322]} 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. Nbd2 c6 6. Bg2 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} d5 7. O-O Be7 (7... Nbd7 8. b3 b5 9. c5 b4 10. Re1 Be7 11. Qc2 Bb5 12. a4 bxa3 13. Nb1 a5 14. Nc3 {1-0 (39) Ivanchuk,V (2739)-Zubov,A (2581) Warsaw 2009}) 8. Ne5 {White is slightly better.} Nfd7 9. Nxd7 Nxd7 10. b3 O-O 11. Bb2 Rc8 12. e4 Nf6 13. Rc1 Bb4 14. e5 Nd7 15. Re1 Qg5 $146 ({Predecessor:} 15... Qe7) 16. Bc3 (16. f4 {is more complex.} Qg6 17. a3 Be7 18. Nf1 h5 19. Ne3) 16... Qe7 17. Bf1 {And now cxd5 would win.} Bxc3 18. Rxc3 Qb4 19. Nb1 Bb7 20. cxd5 cxd5 21. Ree3 Nb8 22. a3 Qe7 23. Qd2 Nc6 24. Re1 h6 25. Rec1 Nb8 26. Rxc8 Rxc8 27. Rxc8+ Bxc8 28. Qc3 Qd8 29. Nd2 Ba6 30. Bxa6 Nxa6 31. Qc6 Qc7 32. Qe8+ Kh7 33. Nf3 Nb8 $2 ({Better is} 33... g6 $14) 34. Kg2 (34. h4 $1 $18) 34... a5 {[#]} (34... Nc6 $14) 35. h4 $1 $18 Nc6 $2 {[#]} (35... g6) 36. h5 $1 Nxd4 37. Nxd4 {Strongly threatening Nc6.} Qxe5 38. Nf3 Qxh5 39. Qb5 Qf5 40. Qxb6 Qd3 41. Qxa5 Qxb3 42. Qb4 Qd3 43. a4 {Played: Nf3-e5} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.9"]
[White "Tymrakiewicz, Rafal"]
[Black "Steiner, Bruno"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2254"]
[BlackElo "2117"]
[Annotator "ChessBase"]
[PlyCount "141"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 d5 2. c3 Nf6 3. Nf3 e6 4. Bg5 h6 5. Bh4 Be7 6. Nbd2 Nbd7 7. e3 b6 8. Bb5 O-O 9. Bc6 Rb8 10. Qe2 Ne8 11. Bg3 Bb7 12. Bxb7 Rxb7 13. O-O Nd6 14. Rfd1 Nf5 15. Qa6 Qc8 16. c4 Nxg3 17. hxg3 c6 18. a3 Rc7 19. Qxc8 Rfxc8 20. b4 a6 21. c5 bxc5 22. bxc5 Rb7 23. Rab1 Rcb8 24. Rxb7 Rxb7 25. Rb1 Rxb1+ 26. Nxb1 e5 27. Nc3 e4 28. Ne1 f5 29. Nc2 Kf7 30. Kf1 Ke6 31. Ke2 h5 32. Kd2 Bd8 33. Nb4 Nb8 34. Ne2 g5 35. Kc3 Kd7 36. Kb3 Kc7 37. Kc2 a5 38. Na2 Nd7 39. Nac3 Nf6 40. Kd2 Kb7 41. Ng1 Ne8 42. f3 Ng7 43. Ke2 Ne6 44. Kf2 Ka6 45. Nge2 Bf6 46. Ke1 Be7 47. Kd2 Bf8 48. Na4 Kb5 49. Nb6 Nxc5 50. dxc5 Bxc5 51. Nd7 exf3 52. gxf3 h4 53. gxh4 gxh4 54. a4+ Kc4 55. Ne5+ Kb3 56. Nxc6 Kxa4 57. Nf4 Kb5 58. Ne5 Bd6 59. Neg6 Bxf4 60. Nxf4 Kc4 61. Kc2 a4 62. Nh3 a3 63. Nf2 d4 64. e4 f4 65. e5 Kd5 66. Kb3 Kxe5 67. Kxa3 d3 68. Nxd3+ Kd4 69. Nxf4 Ke3 70. Ng2+ Kxf3 71. Nxh4+ 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.19"]
[Round "2.10"]
[White "Stigar, Petter"]
[Black "Sernecki, Franciszek"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2217"]
[BlackElo "2204"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,39,26,10,27,17,31,34,37,22,22,22,29,24,29,24,29,25,29,22,20,22,24,25,23,27,16,24,26,23,22,29]} 1. d4 Nf6 2. Nf3 ({Predecessor:} 2. c4 e6 3. g3 d5 {½-½ (29) Van Straaten,M-Chen,F ICCF email 2015}) 2... e6 3. c4 d5 4. g3 dxc4 5. Bg2 Bb4+ 6. Bd2 c5 $146 {E04: Open Catalan: 5 Nf3} (6... Be7 {looks sharper.} 7. Qa4+ c6 8. Qxc4 O-O 9. O-O b5) (6... a5 7. O-O O-O 8. Qc2 Bxd2 9. Nbxd2 b5 10. a4 c6 11. b3 cxb3 12. Nxb3 b4 13. e4 Nbd7 14. h4 h6 15. e5 {½-½ (93) Abasov,N (2632)-Piorun,K (2660) Khanty-Mansiysk 2019}) 7. Bxb4 cxb4 8. Ne5 O-O {White is slightly better.} 9. a3 Nd5 10. Nxc4 b5 11. Ne5 Bb7 12. O-O bxa3 13. Nxa3 a6 14. Qb3 Nd7 15. Nac4 bxc4 16. Qxb7 {[%mdl 64] [#] Double Attack} Nxe5 17. dxe5 Rb8 18. Qxa6 Qc7 19. Rfc1 Qxe5 20. Qxc4 {Accuracy: White = 84%, Black = 94%.} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.6"]
[White "Sernecki, Franciszek"]
[Black "Plischki, Sebastian"]
[Result "0-1"]
[ECO "D91"]
[WhiteElo "2204"]
[BlackElo "2387"]
[Annotator "RC"]
[PlyCount "58"]
[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 0:00:05]} g6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:03]} d5 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:00:34]} Bg7 {[%emt 0:00:05]} 5. Bg5 {[%emt 0:00:26]} Ne4 {[%emt 0:00:20]} 6. h4 {[%emt 0:00:20]} Nxg5 {[%emt 0:00:25]} 7. hxg5 {[%emt 0:00:15]} dxc4 {[%emt 0:00:10]} 8. Qa4+ {[%emt 0:13:38]} c6 {[%emt 0:00:50]} 9. Qxc4 {[%emt 0:01:58]} Be6 {[%emt 0:01:22]} 10. Qa4 {[%emt 0:06:41]} Qb6 {[%emt 0:02:48]} 11. O-O-O {[%emt 0:03:57]} O-O {[%emt 0:02:09]} 12. e3 {[%emt 0:04:06]} Qc7 {[%emt 0:06:36]} 13. Be2 {[%emt 0:13:36]} Nd7 {[%emt 0:02:37]} 14. Rh4 {[%emt 0:05:35]} b5 {[%emt 0:03:57]} 15. Qc2 {[%emt 0:02:56]} Qa5 {[%emt 0:01:10]} 16. b3 {[%emt 0:06:50]} Rfc8 {[%emt 0:03:36]} 17. Ne1 {[%emt 0:12:18]} c5 {[%emt 0:03:04]} 18. d5 {[%emt 0:04:02]} Bf5 {[%emt 0:01:21]} 19. e4 {[%emt 0:03:16]} Bxc3 {[%emt 0:03:08]} 20. exf5 {[%emt 0:04:37]} Bxe1 {[%emt 0:01:36]} 21. fxg6 {[%emt 0:00:29]} hxg6 {[%emt 0:03:33]} 22. Bg4 {[%emt 0:04:51]} c4 {[%emt 0:06:24]} 23. b4 {[%emt 0:02:48]} Qa3+ {[%emt 0:01:02]} 24. Kb1 {[%emt 0:00:04]} Qxb4+ {[%emt 0:00:05]} 25. Kc1 {[%emt 0:00:04]} Rd8 {[%emt 0:09:53]} 26. Be6 {[%emt 0:02:41]} Nf8 {[%emt 0:04:30]} 27. Qe4 {[%emt 0:03:10]} fxe6 {[%emt 0:04:02]} 28. Rh6 {[%emt 0:01:09]} Qc3+ {[%emt 0:08:44]} 29. Kb1 {[%emt 0:00:06]} Qg7 {[%emt 0:00:25]} 0-1

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.7"]
[White "Steiner, Bruno"]
[Black "Stigar, Petter"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2117"]
[BlackElo "2217"]
[Annotator "ChessBase"]
[PlyCount "34"]
[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. Bf4 {[%emt 0:00:13]} Nf6 {[%emt 0:00:00]} 3. e3 {[%emt 0:00:14]} e6 {[%emt 0:00:00]} 4. Nd2 {[%emt 0:00:19]} Bd6 {[%emt 0:00:00]} 5. Bg3 {[%emt 0:00:18]} O-O {[%emt 0:00:02]} 6. Bd3 {[%emt 0:00:39]} c5 {[%emt 0:01:06]} 7. c3 {[%emt 0:00:36]} Nc6 {[%emt 0:00:53]} 8. Ngf3 {[%emt 0:00:27]} b6 {[%emt 0:00:12]} 9. Ne5 {[%emt 0:00:45]} Bb7 {[%emt 0:01:56]} 10. f4 {[%emt 0:01:28]} Ne7 {[%emt 0:00:36]} 11. Qc2 {[%emt 0:00:27]} c4 {[%emt 0:08:49]} 12. Be2 {[%emt 0:01:03]} Nf5 {[%emt 0:02:42]} 13. Bf2 {[%emt 0:00:10]} Be7 {[%emt 0:00:38]} 14. g4 {[%emt 0:05:50]} Nd6 {[%emt 0:00:20]} 15. Bf3 {[%emt 0:05:04]} Qc7 {[%emt 0:03:12]} 16. g5 {[%emt 0:03:07]} Nfe4 {[%emt 0:01:34]} 17. Nxe4 {[%emt 0:02:29]} dxe4 {[%emt 0:09:29]} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.8"]
[White "Roesemann, Rainer"]
[Black "Tymrakiewicz, Rafal"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "2231"]
[BlackElo "2254"]
[Annotator "ChessBase"]
[PlyCount "133"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} g6 {[%emt 0:01:45]} 2. g3 {[%emt 0:00:00]} Bg7 {[%emt 0:00:06]} 3. Bg2 {[%emt 0:00:00]} e5 {[%emt 0:05:23]} 4. Nc3 {[%emt 0:00:08]} d6 {[%emt 0:00:51]} 5. e4 {[%emt 0:00:53]} Nc6 {[%emt 0:02:29]} 6. d3 {[%emt 0:00:25]} Be6 {[%emt 0:01:48]} 7. Nge2 {[%emt 0:00:39]} h5 {[%emt 0:02:00]} 8. Be3 {[%emt 0:08:55]} h4 {[%emt 0:08:26]} 9. Qd2 {[%emt 0:04:14]} Qd7 {[%emt 0:07:46]} 10. Nd5 {[%emt 0:05:18]} Nd8 {[%emt 0:13:02]} 11. f4 {[%emt 0:11:08]} c6 {[%emt 0:04:52]} 12. Ndc3 {[%emt 0:00:36]} Ne7 {[%emt 0:01:17]} 13. O-O-O {[%emt 0:01:09]} Bg4 {[%emt 0:07:13]} 14. Rdf1 {[%emt 0:07:39]} Ne6 {[%emt 0:10:34]} 15. d4 {[%emt 0:02:21]} h3 {[%emt 0:12:34]} 16. Bf3 {[%emt 0:00:32]} Bxf3 {[%emt 0:00:12]} 17. Rxf3 {[%emt 0:00:11]} exd4 {[%emt 0:00:29]} 18. Nxd4 {[%emt 0:00:32]} f5 {[%emt 0:04:35]} 19. exf5 {[%emt 0:20:00]} Nxf5 {[%emt 0:07:05]} 20. Nxf5 {[%emt 0:00:25]} gxf5 {[%emt 0:00:01]} 21. Rd1 {[%emt 0:01:19]} Kf7 {[%emt 0:05:31]} 22. Qd3 {[%emt 0:01:04]} Bxc3 {[%emt 0:00:18]} 23. Qxc3 {[%emt 0:00:44]} Rad8 {[%emt 0:00:41]} 24. Qd3 {[%emt 0:03:10]} Ng7 {[%emt 0:00:23]} 25. Bd4 {[%emt 0:03:01]} Rhe8 {[%emt 0:01:07]} 26. Qf1 {[%emt 0:01:23]} Re4 {[%emt 0:00:49]} 27. Qxh3 {[%emt 0:01:58]} Qe6 {[%emt 0:00:26]} 28. Rfd3 {[%emt 0:03:50]} Qxc4+ {[%emt 0:01:41]} 29. Bc3 {[%emt 0:01:07]} d5 {[%emt 0:00:23]} 30. Rd4 {[%emt 0:03:00]} Rxd4 {[%emt 0:00:40]} 31. Rxd4 {[%emt 0:00:07]} Qe2 {[%emt 0:00:14]} 32. Qh6 {[%emt 0:05:01]} Qe6 {[%emt 0:00:26]} 33. Qg5 {[%emt 0:01:50]} Qe7 {[%emt 0:00:50]} 34. Qxe7+ {[%emt 0:00:36]} Kxe7 {[%emt 0:00:01]} 35. Rb4 {[%emt 0:00:17]} Ne8 {[%emt 0:00:57]} 36. Rxb7+ {[%emt 0:00:12]} Ke6 {[%emt 0:00:32]} 37. Bb4 {[%emt 0:01:36]} Rd7 {[%emt 0:00:31]} 38. Rxd7 {[%emt 0:00:28]} Kxd7 {[%emt 0:00:01]} 39. Bc5 {[%emt 0:00:26]} a6 {[%emt 0:00:16]} 40. b4 {[%emt 0:00:54]} Nf6 {[%emt 0:00:55]} 41. Bd4 {[%emt 0:30:30]} Ne4 {[%emt 0:00:57]} 42. Kc2 {[%emt 0:00:00]} a5 {[%emt 0:01:44]} 43. bxa5 {[%emt 0:00:00]} c5 {[%emt 0:00:05]} 44. Be3 {[%emt 0:00:00]} Kc6 {[%emt 0:02:33]} 45. Kd3 {[%emt 0:00:00]} Kb5 {[%emt 0:18:15]} 46. a6 {[%emt 0:00:00]} Kxa6 {[%emt 0:00:54]} 47. Bxc5 {[%emt 0:00:00]} Kb5 {[%emt 0:01:36]} 48. Be7 {[%emt 0:00:00]} Kc6 {[%emt 0:00:15]} 49. Kd4 {[%emt 0:00:00]} Nd2 {[%emt 0:01:26]} 50. h4 {[%emt 0:00:00]} Nf3+ {[%emt 0:02:35]} 51. Ke3 {[%emt 0:00:00]} Nh2 {[%emt 0:00:15]} 52. h5 {[%emt 0:00:00]} Kd7 {[%emt 0:00:09]} 53. Bc5 {[%emt 0:00:00]} Ke6 {[%emt 0:00:37]} 54. a4 {[%emt 0:00:00]} Nf1+ {[%emt 0:00:48]} 55. Kf2 {[%emt 0:00:00]} Nd2 {[%emt 0:00:06]} 56. Bb4 {[%emt 0:00:00]} Ne4+ {[%emt 0:00:25]} 57. Kf3 {[%emt 0:00:00]} d4 {[%emt 0:00:46]} 58. a5 {[%emt 0:00:00]} Kd5 {[%emt 0:00:04]} 59. h6 {[%emt 0:00:00]} Nf6 {[%emt 0:00:43]} 60. Be7 {[%emt 0:00:00]} Nh7 {[%emt 0:00:01]} 61. Ke2 {[%emt 0:00:00]} Kc6 {[%emt 0:00:44]} 62. Kd3 {[%emt 0:00:00]} Kb5 {[%emt 0:00:08]} 63. Bd8 {[%emt 0:00:00]} Nf8 {[%emt 0:00:33]} 64. Kxd4 {[%emt 0:00:00]} Ne6+ {[%emt 0:00:05]} 65. Ke5 {[%emt 0:00:00]} Nxd8 {[%emt 0:00:03]} 66. Kf6 {[%emt 0:00:00]} Kxa5 {[%emt 0:00:24]} 67. h7 {[%emt 0:00:00]} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.9"]
[White "Grabarczyk, Miroslaw"]
[Black "Abhilash, Reddy M.L."]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2366"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,109,-4,-3,26,5,42,42,45,38,54,48,58,49,47,37,56,47,47,47,44,39,52,48,43,43,45,40,58,41,49,49,49,46,45,48,63,61,71,64,64,61,67,16,29,24,31,29,143,135,139,139,128,92,122,122,184,90,229,223,278,282,278,264,264,264,326,258,481,388,731,825,758,794,1188,633,1559,874,2600,1891,6555,5402,1777,1724,29950,5513,29973,29975,29976,29977,29977,29978,29978,29979,29979,29977,29979,29980,29980,29979,29976,29976]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Qb3 Bc8 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5} (6... Qc7 7. Bd2 e6 8. Bb5+ Nc6 9. O-O Bd6 10. Bb4 O-O 11. Bxc6 bxc6 12. Nbd2 Rfb8 13. Bxd6 Qxd6 14. Qc3 Qb4 15. Qxb4 Rxb4 16. b3 Nd7 17. a3 Rb6 18. b4 {½-½ (31) Radjabov,T (2745)-Aronian,L (2813) Stavanger 2013}) 7. Bb5+ Nbd7 8. O-O e6 {White is slightly better.} 9. Bd2 Be7 10. Bb4 O-O 11. Bxe7 Qxe7 12. Rc1 Qd6 13. Nbd2 $146 ({Predecessor:} 13. Qa3 Ne4 14. Qxd6 Nxd6 {½-½ (26) Rizzo,G (2093)-Carbone,S (1933) Amantea 2011}) 13... a6 14. Bf1 b6 15. Qc3 (15. Rc3 {with more complications.} Bb7 16. Rac1 Rfc8 17. Ne5 h6 18. Bd3) 15... Qb8 16. Ne5 Nxe5 17. dxe5 Nd7 18. f4 a5 19. Nb3 a4 20. Nd4 Nc5 21. b4 axb3 $1 22. axb3 {[%cal Ba2b3,Bb3b4][%mdl 32]} Rxa1 23. Qxa1 Bd7 24. b4 Ne4 25. Bd3 $36 {[%mdl 2048] White is pushing.} Qb7 26. Qa6 (26. Rc2 $14) 26... Qxa6 $11 27. Bxa6 Ra8 28. Bd3 Rc8 (28... Kf8 $11) 29. Rxc8+ $16 Bxc8 30. Bxe4 $1 dxe4 {[%mdl 4096] Endgame KB-KN} 31. g4 f6 32. Kf2 fxe5 (32... Bd7 $16) 33. Nc6 $18 {Hoping for Ne7+.} ({Much less strong is} 33. fxe5 $6 h6 $14) 33... Bd7 (33... Kf8 $16 {is a better defense.}) 34. Nxe5 Bb5 35. Ke1 Kf8 36. Kd2 Ke7 37. Kc3 $1 {[%cal Rc3d4]} Kf6 38. h4 h6 $2 (38... Ke7 39. Kd4 Be2 40. Kxe4 Kd6) 39. Kd4 g5 $2 (39... Be2 40. Nd7+ (40. Kxe4 Ke7 $16) 40... Ke7) 40. fxg5+ hxg5 41. h5 Kg7 42. Kxe4 Kf6 43. Kd4 Be2 44. h6 b5 45. e4 Bd1 46. Ke3 Bc2 47. Nf3 (47. h7 $142 Kg7 {[#]} 48. Nf7 $1 {[%mdl 512]} Kxh7 49. Nxg5+ {[%mdl 64] Double Attack} Kh8 50. Nxe6 Bb3 51. Nd4 $1 {[%mdl 512]} Bc4 52. Kf4) 47... Bd1 {[#]} 48. Nxg5 $1 {[%mdl 512] White mates.} Bxg4 (48... Kxg5 49. h7) 49. h7 Kg7 50. Kf4 Be2 51. Ke5 Bc4 52. Kd6 Bb3 53. e5 Bc4 54. Kd7 Kh8 55. Nxe6 {Accuracy: White = 72%, Black = 30%.} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.20"]
[Round "3.10"]
[White "Michalek, Jan"]
[Black "Vagman, Roy"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2251"]
[BlackElo "2089"]
[Annotator "ChessBase"]
[PlyCount "83"]
[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]} d5 {[%emt 0:00:38]} 2. g3 {[%emt 0:00:00]} g6 {[%emt 0:00:56]} 3. Bg2 {[%emt 0:00:36]} Bg7 {[%emt 0:00:12]} 4. O-O {[%emt 0:00:38]} e5 {[%emt 0:00:56]} 5. d3 {[%emt 0:00:37]} Ne7 {[%emt 0:00:30]} 6. e4 {[%emt 0:05:24]} c6 {[%emt 0:09:24]} 7. Qe2 {[%emt 0:07:29]} Qd6 {[%emt 0:12:38]} 8. Re1 {[%emt 0:02:47]} d4 {[%emt 0:04:34]} 9. a4 {[%emt 0:02:10]} c5 {[%emt 0:03:51]} 10. Na3 {[%emt 0:01:47]} O-O {[%emt 0:01:05]} 11. Nd2 {[%emt 0:01:24]} Nbc6 {[%emt 0:07:03]} 12. f4 {[%emt 0:04:54]} f6 {[%emt 0:02:17]} 13. Nac4 {[%emt 0:03:59]} Qc7 {[%emt 0:01:39]} 14. Rf1 {[%emt 0:01:38]} b6 {[%emt 0:07:51]} 15. Nf3 {[%emt 0:01:47]} Bd7 {[%emt 0:04:14]} 16. Bd2 {[%emt 0:02:12]} a6 {[%emt 0:01:58]} 17. a5 {[%emt 0:02:45]} bxa5 {[%emt 0:04:57]} 18. fxe5 {[%emt 0:01:55]} fxe5 {[%emt 0:01:36]} 19. Nxa5 {[%emt 0:02:34]} Nxa5 {[%emt 0:01:49]} 20. Rxa5 {[%emt 0:01:30]} Bb5 {[%emt 0:03:14]} 21. Bh3 {[%emt 0:01:37]} Nc6 {[%emt 0:08:30]} 22. Raa1 {[%emt 0:13:36]} Nb4 {[%emt 0:01:15]} 23. Be6+ {[%emt 0:02:01]} Kh8 {[%emt 0:00:02]} 24. Bb3 {[%emt 0:02:29]} h6 {[%emt 0:02:50]} 25. Nh4 {[%emt 0:01:36]} Kh7 {[%emt 0:04:58]} 26. Qg4 {[%emt 0:01:59]} Be8 {[%emt 0:08:06]} 27. Rxf8 {[%emt 0:04:25]} Bxf8 {[%emt 0:00:01]} 28. Qe6 {[%emt 0:04:19]} Qg7 {[%emt 0:01:44]} 29. Bxb4 {[%emt 0:03:59]} cxb4 {[%emt 0:01:05]} 30. Bd5 {[%emt 0:00:33]} Rb8 {[%emt 0:02:01]} 31. Rxa6 {[%emt 0:02:22]} Bd7 {[%emt 0:01:11]} 32. Qxg6+ {[%emt 0:00:57]} Qxg6 {[%emt 0:00:01]} 33. Nxg6 {[%emt 0:00:28]} Bg7 {[%emt 0:00:28]} 34. Nh4 {[%emt 0:04:44]} Kh8 {[%emt 0:01:41]} 35. Kg2 {[%emt 0:00:44]} b3 {[%emt 0:01:43]} 36. Bxb3 {[%emt 0:00:30]} Bb5 {[%emt 0:00:14]} 37. Ra3 {[%emt 0:01:59]} Bf6 {[%emt 0:00:44]} 38. Nf5 {[%emt 0:00:33]} Rb7 {[%emt 0:00:32]} 39. Nxh6 {[%emt 0:00:30]} Be7 {[%emt 0:00:30]} 40. Ra8+ {[%emt 0:00:16]} Kh7 {[%emt 0:00:16]} 41. Nf5 {[%emt 0:30:21]} Bc5 {[%emt 0:02:24]} 42. Bd5 {[%emt 0:00:00]} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.6"]
[White "Plischki, Sebastian"]
[Black "Vagman, Roy"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2387"]
[BlackElo "2089"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,120,0,34,0,-4,-14,-17,-47,-34,-45,-39,-43,-43,-44,-44,-51,-51,-62,-60,-70,-65,-48,0,0,0,0,19,16,17,20,15,-10,0,0,0,0,4,-10,0,-27,0,0,0,0,0,0,72,66,77,89,75,83,80,88,69,77,96,72,68,37,22,25,55,52,49,16,35,41,41,41,41,41,41,41,41,16,41,41,41,41,41,41,41,41,41,41,41,8,41,41,41,41,41,41,41,41,42,8,9,8,8,8,8,8,8,8,8,8,8,8,8,0,8]} 1. Nf3 d5 2. g3 g6 (2... Nf6 3. Bg2 e6 4. O-O Be7 5. b3 O-O 6. Bb2 c5 7. e3 Nc6 8. d4 cxd4 9. Nxd4 Bd7 10. Nd2 Nxd4 11. Bxd4 Bc6 12. c4 Rc8 13. Rc1 Qa5 14. a4 Rfd8 15. Qe2 Ne4 16. Nxe4 dxe4 {1-0 (60) Vachier Lagrave,M (2780)-Aronian,L (2775) Moscow 2019}) 3. c4 d4 4. d3 Nc6 5. Bg2 a5 6. O-O {A07: Réti Opening: New York and Capablanca Systems} Bg7 7. b3 $146 ({Predecessor:} 7. Na3 Nf6 8. Nc2 Nd7 9. b3 Nc5 10. Bb2 O-O {½-½ (10) Djukic,N (2546)-Miladinovic,I (2550) Cetinje 2016}) 7... Nf6 8. a3 Nd7 9. Nbd2 e5 10. Ne1 O-O 11. Rb1 Qe7 12. Nc2 Nc5 13. Ne4 Nxe4 14. Bxe4 Bh3 15. Re1 Bg4 16. b4 axb4 17. axb4 f5 18. Bd5+ Kh8 19. b5 Nd8 20. Bf3 Bh3 21. e3 dxe3 22. Nxe3 Qd6 23. Bb2 c6 24. Qe2 Nf7 (24... Ne6 $5 {[%cal Rf5f4]}) 25. bxc6 bxc6 26. c5 $36 {[%mdl 2048] Black is under pressure.} Qxc5 27. Rec1 Qa5 (27... Qd6 $11 {remains equal.}) 28. Bxc6 $16 {Hoping for Ra1.} Rac8 {[#]} 29. Nc4 $1 {[%cal Rc4a5]} Qc7 30. Bd5 {aiming for Nxe5.} Qd7 31. Bxf7 Qxf7 32. Bxe5 Rfe8 {and if ...Rxc4 works, Black does fine.} 33. Bxg7+ (33. Rb5 {seems wilder.} Qd7 34. Rcb1 Qd4 35. Re1 Bxe5 36. Nxe5 f4 37. Qe4) 33... Qxg7 34. Qb2 (34. Qd2 {looks sharper.} Rcd8 35. Na5 Rc8 36. Nc6 Qf6 37. Nb4) 34... Qxb2 35. Rxb2 Red8 36. Rb3 f4 37. Rbc3 fxg3 38. hxg3 Bf5 39. Ne5 Rxc3 40. Rxc3 $14 {[%mdl 4096] Endgame KRB-KRN} Rd5 41. f4 g5 42. Kf2 h5 43. Nf7+ Kg7 44. Nxg5 {And now Ne4 would win.} Rxd3 45. Rxd3 Bxd3 {KB-KN} 46. Ke3 Bb1 47. Ne4 Kg6 48. Nd6 Kf6 49. Kf3 Kg6 50. Nc4 Ba2 51. Ne3 Bb1 52. Ke2 Be4 53. Kd2 h4 {The position is equal.} 54. g4 h3 {[#] Strongly threatening ...h2.} 55. Nf1 {Threatens to win with Ke3.} Bf3 $1 56. g5 Bg2 57. Nh2 Kf5 58. Ke3 Bh1 59. Nf1 {Ng3+ is the strong threat.} Bg2 60. Nh2 Bh1 {Accuracy: White = 60%, Black = 60%.} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.7"]
[White "Abhilash, Reddy M.L."]
[Black "Michalek, Jan"]
[Result "1/2-1/2"]
[ECO "E67"]
[WhiteElo "2258"]
[BlackElo "2251"]
[Annotator "ChessBase"]
[PlyCount "63"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:07:47]} Nf6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:01]} d6 {[%emt 0:00:42]} 3. c4 {[%emt 0:00:05]} g6 {[%emt 0:00:25]} 4. Nc3 {[%emt 0:00:07]} Bg7 {[%emt 0:00:11]} 5. g3 {[%emt 0:00:06]} O-O {[%emt 0:00:29]} 6. Bg2 {[%emt 0:00:04]} Nbd7 {[%emt 0:00:39]} 7. O-O {[%emt 0:00:07]} e5 8. dxe5 {[%emt 0:00:03]} dxe5 {[%emt 0:01:53]} 9. Be3 {[%emt 0:00:05]} Re8 {[%emt 0:03:34]} 10. h3 {[%emt 0:00:07]} c6 {[%emt 0:05:54]} 11. Qb3 {[%emt 0:02:51]} Qa5 {[%emt 0:02:06]} 12. a3 {[%emt 0:06:37]} Nc5 {[%emt 0:09:13]} 13. Qb4 {[%emt 0:05:29]} Qxb4 {[%emt 0:05:56]} 14. axb4 {[%emt 0:00:02]} Nce4 {[%emt 0:03:02]} 15. Nxe4 {[%emt 0:07:23]} Nxe4 {[%emt 0:00:12]} 16. Rxa7 {[%emt 0:05:25]} Rxa7 {[%emt 0:00:15]} 17. Bxa7 {[%emt 0:00:03]} Be6 {[%emt 0:00:48]} 18. Rc1 {[%emt 0:06:00]} Ra8 {[%emt 0:00:30]} 19. Be3 {[%emt 0:18:39]} Ra2 {[%emt 0:01:02]} 20. Ne1 {[%emt 0:03:10]} f5 {[%emt 0:05:06]} 21. Nd3 {[%emt 0:05:12]} Nd6 {[%emt 0:01:57]} 22. Nc5 {[%emt 0:01:30]} Bc8 {[%emt 0:00:14]} 23. b5 {[%emt 0:16:26]} cxb5 {[%emt 0:04:19]} 24. Bd5+ {[%emt 0:02:18]} Kf8 {[%emt 0:03:04]} 25. cxb5 {[%emt 0:00:56]} Rxb2 {[%emt 0:00:39]} 26. Nxb7 {[%emt 0:03:39]} Bxb7 {[%emt 0:05:00]} 27. Bxb7 {[%emt 0:00:14]} Nxb5 {[%emt 0:02:12]} 28. Rc8+ {[%emt 0:02:15]} Ke7 {[%emt 0:02:38]} 29. Ba6 {[%emt 0:00:34]} Kd7 {[%emt 0:13:54]} 30. Rb8 {[%emt 0:01:35]} Rb1+ 31. Kg2 Nc3 32. Rb4 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.8"]
[White "Tymrakiewicz, Rafal"]
[Black "Grabarczyk, Miroslaw"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2254"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,16,0,-10,-1]} 1. e4 e5 2. d4 exd4 3. Nf3 Nc6 4. Bc4 Nf6 5. e5 d5 6. Bb5 Nd7 7. O-O Be7 8. Re1 O-O {C56: Two Knights: 4 d4 exd4 5 0-0 Nxe4} {Predecessor:} 9. Bxc6 $146 bxc6 10. Nxd4 Nb8 11. Qf3 c5 12. Nf5 Bxf5 13. Qxf5 Qd7 14. Qxd7 Nxd7 15. Nc3 c6 16. b3 {1-0 (47) Mamedov,R (2703)-Postny,E (2615) St Petersburg 2018} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.9"]
[White "Stigar, Petter"]
[Black "Roesemann, Rainer"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2217"]
[BlackElo "2231"]
[Annotator "ChessBase"]
[PlyCount "95"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 Bd6 7. Qe2+ Qe7 8. Qxe7+ Kxe7 9. Bd3 Re8 10. Ne2 Be6 11. Bf4 Bxf4 12. Nxf4 g6 13. O-O-O Nd7 14. Rhe1 Kf8 15. Re3 Nb6 16. Rde1 Bd7 17. Rxe8+ Bxe8 18. c3 Rd8 19. Kc2 Rd6 20. Be4 Bd7 21. Nd3 Re6 22. Nc5 Re7 23. Nxd7+ Nxd7 24. Kd2 f5 25. Bd3 Nf6 26. Rxe7 Kxe7 27. f3 Nd5 28. Bc4 Nb6 29. Bb3 f4 30. Kd3 Nc8 31. c4 Nd6 32. c5 Nf5 33. Ke4 Nh4 34. g3 fxg3 35. hxg3 Nf5 36. g4 Ng7 37. d5 cxd5+ 38. Bxd5 b6 39. cxb6 axb6 40. g5 Nf5 41. a4 h5 42. gxh6 Nxh6 43. b4 Nf5 44. a5 Nd6+ 45. Kd4 Nb5+ 46. Kc4 Nd6+ 47. Kd4 Nb5+ 48. Kc4 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "4.10"]
[White "Sernecki, Franciszek"]
[Black "Steiner, Bruno"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2204"]
[BlackElo "2117"]
[Annotator "ChessBase"]
[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]} c5 {[%emt 0:00:51]} 2. Nf3 {[%emt 0:00:43]} e6 {[%emt 0:01:27]} 3. Nc3 {[%emt 0:00:10]} d6 {[%emt 0:01:53]} 4. d4 {[%emt 0:00:20]} cxd4 {[%emt 0:00:11]} 5. Nxd4 {[%emt 0:00:03]} Nf6 {[%emt 0:00:07]} 6. g3 {[%emt 0:00:15]} Be7 {[%emt 0:00:22]} 7. Bg2 {[%emt 0:00:56]} O-O {[%emt 0:00:40]} 8. O-O {[%emt 0:00:43]} Nc6 {[%emt 0:01:29]} 9. Nb3 {[%emt 0:05:34]} Rb8 {[%emt 0:06:58]} 10. a4 {[%emt 0:04:54]} b6 {[%emt 0:12:22]} 11. f4 {[%emt 0:04:01]} Na5 {[%emt 0:02:07]} 12. Nxa5 {[%emt 0:12:06]} bxa5 {[%emt 0:00:19]} 13. b3 {[%emt 0:04:08]} Rb4 {[%emt 0:23:07]} 14. Kh1 {[%emt 0:14:17]} Bb7 {[%emt 0:03:37]} 15. Qe2 {[%emt 0:05:40]} Qa8 {[%emt 0:08:30]} 16. Ba3 {[%emt 0:06:47]} Rc8 {[%emt 0:04:49]} 17. Bxb4 {[%emt 0:06:23]} axb4 {[%emt 0:00:25]} 18. e5 {[%emt 0:08:54]} dxe5 {[%emt 0:04:35]} 19. fxe5 {[%emt 0:00:43]} Bxg2+ {[%emt 0:08:01]} 20. Qxg2 {[%emt 0:00:01]} Qxg2+ {[%emt 0:00:07]} 21. Kxg2 {[%emt 0:00:02]} Ng4 {[%emt 0:00:08]} 22. Ne4 {[%emt 0:02:12]} Ne3+ {[%emt 0:02:21]} 23. Kf3 {[%emt 0:03:01]} Nxf1 {[%emt 0:00:51]} 24. Rxf1 {[%emt 0:00:09]} f5 {[%emt 0:03:11]} 25. exf6 {[%emt 0:00:52]} gxf6 {[%emt 0:00:04]} 26. Rc1 {[%emt 0:09:29]} f5 {[%emt 0:00:53]} 27. Nf2 {[%emt 0:00:34]} Kf7 {[%emt 0:07:11]} 28. Nd3 {[%emt 0:01:46]} Rc3 {[%emt 0:00:28]} 29. g4 {[%emt 0:02:39]} a5 {[%emt 0:02:05]} 30. Kf4 {[%emt 0:03:30]} Bd6+ {[%emt 0:01:29]} 31. Kg5 {[%emt 0:00:48]} h6+ {[%emt 0:00:49]} 32. Kh5 {[%emt 0:00:45]} Bxh2 {[%emt 0:01:17]} 33. gxf5 {[%emt 0:00:48]} exf5 {[%emt 0:00:08]} 34. Rf1 {[%emt 0:00:57]} Kf6 {[%emt 0:00:07]} 35. Rf2 {[%emt 0:00:42]} Bc7 {[%emt 0:00:22]} 36. Kxh6 {[%emt 0:01:26]} Bg3 {[%emt 0:00:59]} 37. Re2 {[%emt 0:01:33]} Rc8 {[%emt 0:00:44]} 38. Kh7 {[%emt 0:00:12]} f4 {[%emt 0:00:25]} 39. Re4 {[%emt 0:00:41]} Rc7+ {[%emt 0:00:28]} 40. Kg8 {[%emt 0:00:36]} Rg7+ {[%emt 0:02:26]} 41. Kf8 {[%emt 0:05:12]} f3 {[%emt 0:09:25]} 42. Re3 {[%emt 0:10:07]} Bd6+ {[%emt 0:07:54]} 43. Ke8 {[%emt 0:00:02]} Rg3 {[%emt 0:00:11]} 44. Kd7 {[%emt 0:01:08]} f2 {[%emt 0:01:44]} 45. Nxf2 {[%emt 0:02:06]} Rxe3 {[%emt 0:05:21]} 46. Ng4+ {[%emt 0:00:03]} Kf5 {[%emt 0:00:10]} 47. Nxe3+ {[%emt 0:00:05]} Ke4 {[%emt 0:00:05]} 48. Nc4 {[%emt 0:00:33]} Bg3 {[%emt 0:02:19]} 49. Kc6 {[%emt 0:02:24]} Kd4 {[%emt 0:00:17]} 50. Nxa5 {[%emt 0:00:31]} Kc3 {[%emt 0:00:25]} 51. Kb5 {[%emt 0:00:39]} Be1 {[%emt 0:00:35]} 52. Nc6 {[%emt 0:00:12]} Kxc2 {[%emt 0:00:13]} 53. Kc4 {[%emt 0:00:11]} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.6"]
[White "Steiner, Bruno"]
[Black "Plischki, Sebastian"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2117"]
[BlackElo "2387"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,54,2,-10,-7,-4,-5,-33,-16,-31,-39,-39,-49,-53,-61,-283,-62,-73,-56,-275,-270,-254,-244,-535,-316,-309,-284,-297,-132,-133,-116,-123,-130,-156,-156,-156,-156,-156,-147,-160,-151,-229,-217,-572,-572]} 1. d4 Nf6 2. Bf4 g6 3. c3 Bg7 4. Nd2 d6 5. e4 O-O 6. Ngf3 Nbd7 7. h3 e5 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} 8. dxe5 dxe5 9. Nxe5 $146 (9. Be3 {keeps more tension.} a5 10. Bb5 Qe7 11. O-O Nh5 12. a4) ({Predecessor:} 9. Be3 Qe7 10. Bc4 b6 11. O-O Bb7 12. Re1 Nc5 13. Bxc5 Qxc5 14. b4 Qe7 15. a4 {½-½ (69) Kamsky,G (2741)-Guseinov,G (2631) Khanty-Mansiysk 2013}) 9... Re8 {Black is slightly better.} 10. Nxd7 Nxe4 11. Nxe4 Rxe4+ {[%mdl 64] Double Attack} 12. Be3 {And now Nc5 would win.} Bxd7 13. Qd3 $2 {[#]} (13. Bd3 $15 Re5 14. Be2) 13... Qe7 $2 ({Better is} 13... Rxe3+ $1 $19 {[%mdl 512]} 14. Qxe3 Qh4) 14. Be2 $15 Bf5 $36 {[%mdl 2048] ...Rd8 is the strong threat. Black has some pressure.} 15. O-O $2 (15. Rd1 $1 $15) 15... Rd8 $19 16. Qb5 c6 17. Qa5 $2 (17. Qb3 Rxe3 18. fxe3 Qxe3+ {[%mdl 64] Double Attack} 19. Rf2) 17... b6 18. Qa6 Bc8 19. Qa3 Qxa3 (19... Rxe3 $19 {has better winning chances.} 20. fxe3 Qxe3+ {[%mdl 64] Double Attack} 21. Rf2 Rd2 22. Qxa7 Be6 23. Qb8+ Bf8) 20. bxa3 $17 Bxc3 21. Rac1 Bd4 22. Rxc6 Bxe3 23. fxe3 Be6 24. Rc3 Rd2 25. Bb5 Rxa2 26. Be8 (26. Rf2 $17) 26... Rc4 $19 27. Rd3 $2 (27. Rfc1 {is tougher.} Rxc3 28. Rxc3) 27... Rcc2 {Accuracy: White = 23%, Black = 56%.} 0-1

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.7"]
[White "Roesemann, Rainer"]
[Black "Sernecki, Franciszek"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2231"]
[BlackElo "2204"]
[Annotator "NA"]
[PlyCount "45"]
[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. Bf4 {[%emt 0:00:00]} c5 {[%emt 0:00:02]} 3. e3 {[%emt 0:00:03]} d5 {[%emt 0:00:26]} 4. c3 {[%emt 0:00:20]} Nc6 {[%emt 0:01:27]} 5. Nd2 {[%emt 0:00:10]} e6 {[%emt 0:08:13]} 6. Ngf3 {[%emt 0:00:43]} Bd6 {[%emt 0:02:27]} 7. Bg3 {[%emt 0:00:12]} Qe7 {[%emt 0:01:10]} 8. Ne5 {[%emt 0:01:08]} Nd7 {[%emt 0:01:21]} 9. f4 {[%emt 0:00:59]} O-O {[%emt 0:01:55]} 10. Bd3 {[%emt 0:00:42]} f6 {[%emt 0:11:06]} 11. Nxc6 {[%emt 0:14:50]} bxc6 {[%emt 0:01:23]} 12. O-O {[%emt 0:01:22]} Bb7 {[%emt 0:14:15]} 13. Nf3 {[%emt 0:10:28]} Rfd8 {[%emt 0:07:23]} 14. e4 {[%emt 0:09:45]} cxd4 {[%emt 0:06:34]} 15. cxd4 {[%emt 0:03:46]} c5 {[%emt 0:01:53]} 16. e5 {[%emt 0:00:48]} Bc7 {[%emt 0:01:24]} 17. Qc2 {[%emt 0:04:06]} g6 {[%emt 0:05:26]} 18. exf6 {[%emt 0:01:08]} Qxf6 {[%emt 0:05:55]} 19. Bh4 {[%emt 0:01:36]} Qxf4 {[%emt 0:03:40]} 20. Bg5 {[%emt 0:04:19]} Qg4 {[%emt 0:02:46]} 21. Bxg6 {[%emt 0:12:54]} Nf8 {[%emt 0:07:11]} 22. Bf7+ {[%emt 0:00:36]} Kg7 {[%emt 0:00:13]} 23. Bf6+ {[%emt 0:00:34]} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.8"]
[White "Grabarczyk, Miroslaw"]
[Black "Stigar, Petter"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2366"]
[BlackElo "2217"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,67,6,10,18,15,20,10,21,0,10,0,16,8,28,49,72,59,90,89,83,73,74,10,13,16,21,16,63,63,63,64,183,46,185,171,187,190,170,180,185,184,199,189,471,412]} 1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. a4 c5 7. Bxc4 Nc6 8. O-O Qc7 9. Qe2 Be7 10. Bd2 O-O 11. d5 exd5 12. Nxd5 Nxd5 13. Bxd5 Bf6 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} 14. Bc3 Bxc3 (14... Ne7 15. Bxf6 Nxd5 16. Be5 Qc6 17. e4 Nf6 18. Rfe1 Bg4 19. Qe3 Rfe8 20. Bxf6 Qxf6 21. e5 {½-½ (48) Jussupow,A (2628)-Van Wely,L (2646) Frankfurt 2000}) 15. bxc3 Ne7 {The position is equal.} 16. e4 $146 ({Predecessor:} 16. Bc4 Bg4 17. h3 Bh5 18. Rfd1 Rad8 19. Rxd8 Rxd8 20. Rd1 h6 21. Rxd8+ Qxd8 {½-½ (74) Poluljahov,A (2485)-Dokutchaev,A (2415) Moscow 1994}) 16... Bg4 17. Bc4 Rab8 18. Rfb1 Bh5 19. Qe3 Bxf3 20. Qxf3 Qc6 21. a5 Qc7 22. Rd1 Rbd8 23. Bd5 (23. Rxd8 $16 Qxd8 24. Qe3) 23... Nxd5 $11 24. Rxd5 Rxd5 25. exd5 {[%mdl 4096] Endgame KQR-KQR} Re8 26. g3 h6 27. Rb1 Rd8 (27... c4 $14) 28. Rb6 (28. c4 $18) 28... Qe7 (28... c4 $1 $14) 29. c4 $18 Rd7 30. Kg2 Qe5 31. Rb3 Qd6 32. h4 Kf8 33. Qg4 Rc7 $2 {[#]} (33... Qc7 34. Rb6 Rd8) 34. Rxb7 $1 {[%mdl 512] Accuracy: White = 53%, Black = 23%.} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.9"]
[White "Michalek, Jan"]
[Black "Tymrakiewicz, Rafal"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "2251"]
[BlackElo "2254"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,132,15,27,0,0,-5,0,0,10,10,0,0,0,1,2,0,0,0,2,0,0,0,0,0,0,0,16,0,28,9,45,0,24,0,0,4,15,0,47,-12,-8,-66,-34,-47,-53,-104,-108,-226,-174,-187,-122,-157,-176,-398,-176,-175,-51,-426,-418,-600,-421,-577,-575,-628,-570,-656,-656,-617,-266,-71,0,0,0,0,0,0,80,90,157,0,39,0,0,0,8,-29942,-5622,-5177,6358,0,0,-29979,-29980,-29967,0,-29987,-29987,-29987,-29988,-29988,-29988,-29988,-29962,-5628,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. cxd5 exd5 8. Qa4+ {B14: Caro-Kann: Panov-Botvinnik Attack with 5...e6 and 5...g6} (8. Bd3 O-O 9. O-O h6 10. Ne5 Nc6 11. Nxc6 bxc6 12. Bf4 Re8 13. Rc1 Bd6 14. Bg3 Rb8 15. Na4 Bxg3 16. hxg3 Qd6 17. a3 {1-0 (49) Artemiev,V (2709)-Korobov,A (2698) St Petersburg 2018}) 8... Nc6 9. Bb5 Bd7 10. O-O Bxc3 11. bxc3 O-O $1 12. Bg5 h6 13. Bxf6 Qxf6 14. Rfe1 Rfc8 15. Re3 a6 $146 ({Predecessor:} 15... Re8) 16. Bxc6 Qxc6 17. Qa3 Re8 18. Ne5 Qc7 19. Rae1 Be6 20. h3 Rac8 21. Qb3 b5 22. a4 Rb8 23. axb5 Rxb5 24. Qa4 Ra8 25. Ra1 Rab8 26. Rae1 (26. Qxa6 $14 Rb1+ 27. Rxb1 Rxb1+ 28. Kh2) 26... a5 27. Qa1 ({Better is} 27. g4 $11) 27... Rb3 28. Rc1 Bf5 {Threatens to win with ...Rb1.} 29. Ree1 (29. Qa4 $1 $15) 29... f6 $17 30. Nf3 (30. Ng4 $17) 30... Bd3 31. Qa4 R8b5 (31... Rxc3 $19 32. Ra1 Rb5) 32. Re8+ Kh7 33. Ne1 $2 (33. Ree1 {keeps fighting.}) 33... Bg6 (33... Be4 $142 34. Rd1 Rb1) 34. Re3 $19 Qc4 (34... Rb1 $19 35. Rxb1 Rxb1) 35. Qa1 $2 {[%mdl 8192]} (35. Qxc4 $15 dxc4 36. Ra1) 35... a4 36. Kh2 (36. Qa2 $142) 36... Qc7+ 37. g3 a3 38. Ng2 Qc4 39. Rce1 Be4 40. Nf4 Bb1 (40... Rb8 $142 41. h4 Qa6 42. Rxe4 dxe4) 41. Re7 $2 ({White should play} 41. R3e2 $19) 41... a2 {[#]} (41... Rb8 $17 42. Rxb1 Rxb1 43. Qxa3 Rg8) 42. Nh5 $1 $11 {[%mdl 512]} Rb7 {...Rxe7 is the strong threat.} 43. Nxf6+ $1 Kg6 44. Nd7 Rxd7 (44... Kh7 $1 $11 {keeps the balance.}) 45. Rxd7 $16 Qc6 ({Black should try} 45... Qa6) 46. Ree7 (46. Ra7 $1 $16) 46... Qf6 $14 47. f4 {Black must now prevent f5+.} h5 48. Rxg7+ Kh6 {And now ...Qa6 would win.} 49. Rb7 $2 {[%mdl 8192]} (49. Rge7 $11 h4 50. f5 hxg3+ 51. Kg2 Bxf5 52. Qxa2 Be4+ 53. Rxe4 dxe4 54. Qd2+ Kg6 55. Qe3 $1 {[%mdl 512]} (55. Kxg3 Qc6 $11) 55... Qf2+ 56. Qxf2 gxf2 57. Kxf2 Rxc3 58. h4) 49... Qa6 $1 {( -> ...Qe2+)} 50. Rbe7 Qb5 $4 {[%mdl 8192] [#]} (50... Be4 $19 51. c4 Rb1) 51. g4 $2 (51. f5 $1 $18 {[%csl Gf5][%cal Rg7g6]} Qe2+ (51... Bxf5 52. Qc1#) 52. Rxe2 Kxg7 53. h4) 51... hxg4 $11 52. hxg4 $2 {[%mdl 8192] [#]} (52. Rxg4 $11 Qd3 53. Kg1) 52... Rb2+ $1 53. Kg1 Re2 $2 (53... Qb3 {mates} 54. Rh7+ Bxh7 55. g5+ Kg6 56. f5+ Kxf5 57. g6 Rb1+ {[%mdl 64] Double Attack} 58. Re1 Rxa1 59. Rxa1 Qb1+ 60. Rxb1 axb1=Q+ 61. Kf2 Bxg6 62. Kf3 Qf1+ 63. Ke3 Bh5 64. Kd2 Qd1+ 65. Ke3 Qe2#) 54. g5+ $2 {[%mdl 8192]} (54. f5 $11 Rxe7 55. Rxe7) 54... Kh5 55. c4 Qxc4 {[%cal Rc4c1]} 56. Rxe2 Qxe2 {[%mdl 4096] Endgame KQR-KQB} 57. Qc3 Qg4+ 58. Kf2 Be4 $2 (58... Qxf4+ $19 59. Ke1 Qe4+ 60. Kd2 Qg2+ 61. Ke1 Qg1+ 62. Kd2 Qh2+ 63. Ke1 Qh1+ 64. Kf2 Qh4+ 65. Ke2 Qe4+ 66. Kd2 Qg2+ 67. Ke1 Qg1+ 68. Kd2 Qg2+) 59. Ra7 {aiming for Qg3.The position is equal.} Qg2+ 60. Ke1 Qg1+ 61. Ke2 $1 {Threatening mate with Qh3+.} Qg2+ 62. Ke1 Qg1+ 63. Ke2 $1 {White wants to mate with Qh3+.} Qg2+ 64. Ke1 Qg1+ 65. Ke2 $1 {White threatens Qh3+ and mate.} Qh2+ 66. Ke1 Qg1+ {Accuracy: White = 26%, Black = 42%.} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.21"]
[Round "5.10"]
[White "Vagman, Roy"]
[Black "Abhilash, Reddy M.L."]
[Result "1/2-1/2"]
[ECO "B27"]
[WhiteElo "2089"]
[BlackElo "2258"]
[Annotator "NA"]
[PlyCount "24"]
[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 0:00:34]} 2. Nf3 {[%emt 0:00:28]} b6 {[%emt 0:00:05]} 3. c4 {[%emt 0:02:55]} Bb7 {[%emt 0:00:11]} 4. Nc3 {[%emt 0:00:10]} e6 {[%emt 0:00:48]} 5. d4 {[%emt 0:01:14]} cxd4 {[%emt 0:01:08]} 6. Nxd4 {[%emt 0:00:12]} a6 {[%emt 0:00:12]} 7. Be2 {[%emt 0:00:15]} Qc7 {[%emt 0:00:06]} 8. Be3 {[%emt 0:00:34]} Nf6 {[%emt 0:00:16]} 9. f3 {[%emt 0:01:22]} Nc6 {[%emt 0:01:46]} 10. O-O {[%emt 0:01:31]} Bc5 11. Nc2 {[%emt 0:08:09]} Nb4 {[%emt 0:22:54]} 12. Bxc5 {[%emt 0:01:51]} Qxc5+ {[%emt 0:06:12]} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.6"]
[White "Plischki, Sebastian"]
[Black "Abhilash, Reddy M.L."]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2387"]
[BlackElo "2258"]
[Annotator "NA"]
[PlyCount "69"]
[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]} c6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 4. Qc2 {[%emt 0:00:06]} g6 {[%emt 0:01:23]} 5. Bf4 {[%emt 0:00:16]} Bf5 {[%emt 0:04:10]} 6. Qb3 {[%emt 0:00:21]} Qb6 {[%emt 0:00:29]} 7. e3 {[%emt 0:00:56]} Bg7 {[%emt 0:00:35]} 8. Nc3 {[%emt 0:00:16]} Qxb3 {[%emt 0:02:39]} 9. axb3 {[%emt 0:00:07]} O-O {[%emt 0:00:05]} 10. c5 {[%emt 0:02:11]} Nbd7 {[%emt 0:03:09]} 11. h3 {[%emt 0:00:31]} Rfe8 {[%emt 0:01:55]} 12. b4 {[%emt 0:00:17]} a6 {[%emt 0:00:17]} 13. Be2 {[%emt 0:04:20]} Ne4 {[%emt 0:18:58]} 14. g4 {[%emt 0:05:52]} Nxc3 {[%emt 0:04:00]} 15. bxc3 {[%emt 0:00:07]} Be4 {[%emt 0:00:09]} 16. O-O {[%emt 0:00:56]} Bxf3 {[%emt 0:08:29]} 17. Bxf3 {[%emt 0:00:14]} e5 {[%emt 0:00:04]} 18. Bg3 {[%emt 0:01:23]} Nf8 {[%emt 0:06:40]} 19. Bg2 {[%emt 0:04:34]} Rad8 {[%emt 0:04:26]} 20. Rfd1 {[%emt 0:03:06]} exd4 {[%emt 0:03:43]} 21. cxd4 {[%emt 0:03:12]} Rc8 {[%emt 0:01:22]} 22. Bd6 {[%emt 0:03:55]} Ne6 {[%emt 0:02:07]} 23. h4 {[%emt 0:07:48]} Nc7 {[%emt 0:04:04]} 24. g5 {[%emt 0:02:32]} Nb5 {[%emt 0:00:19]} 25. Bf4 {[%emt 0:01:49]} f5 {[%emt 0:03:53]} 26. gxf6 {[%emt 0:03:40]} Bxf6 {[%emt 0:00:02]} 27. h5 {[%emt 0:04:12]} g5 {[%emt 0:00:50]} 28. Bg3 {[%emt 0:00:30]} Re7 {[%emt 0:03:36]} 29. Rdc1 {[%emt 0:04:48]} Kg7 {[%emt 0:02:20]} 30. Bh3 {[%emt 0:02:33]} Rce8 {[%emt 0:02:28]} 31. Kg2 {[%emt 0:01:04]} Rf7 {[%emt 0:01:18]} 32. Bg4 {[%emt 0:02:00]} Rfe7 {[%emt 0:00:07]} 33. Bf5 {[%emt 0:01:42]} Kh6 {[%emt 0:00:15]} 34. Ra2 {[%emt 0:06:15]} Rf7 {[%emt 0:00:24]} 35. Bg4 {[%emt 0:00:49]} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.7"]
[White "Tymrakiewicz, Rafal"]
[Black "Vagman, Roy"]
[Result "0-1"]
[ECO "D26"]
[WhiteElo "2254"]
[BlackElo "2089"]
[Annotator "ChessBase"]
[PlyCount "90"]
[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]} d5 {[%emt 0:00:00]} 2. e3 {[%emt 0:00:39]} Nf6 {[%emt 0:02:48]} 3. c4 {[%emt 0:01:07]} dxc4 {[%emt 0:01:05]} 4. Bxc4 {[%emt 0:00:30]} e6 {[%emt 0:01:37]} 5. O-O {[%emt 0:02:32]} c5 {[%emt 0:00:59]} 6. Nc3 {[%emt 0:02:08]} Be7 {[%emt 0:01:15]} 7. d4 {[%emt 0:00:31]} cxd4 {[%emt 0:00:27]} 8. exd4 {[%emt 0:00:52]} Nc6 {[%emt 0:00:28]} 9. Bg5 {[%emt 0:06:40]} O-O {[%emt 0:01:16]} 10. Re1 {[%emt 0:05:51]} a6 {[%emt 0:03:09]} 11. a4 {[%emt 0:13:59]} h6 {[%emt 0:18:11]} 12. Bh4 {[%emt 0:03:02]} Nh5 {[%emt 0:01:31]} 13. Bxe7 {[%emt 0:04:57]} Nxe7 {[%emt 0:00:02]} 14. Ne5 {[%emt 0:07:05]} Nf6 {[%emt 0:00:53]} 15. Qd3 {[%emt 0:10:56]} Bd7 {[%emt 0:19:52]} 16. Rad1 {[%emt 0:01:05]} Rc8 {[%emt 0:05:00]} 17. Ba2 {[%emt 0:01:33]} g6 {[%emt 0:05:25]} 18. Qf3 {[%emt 0:12:41]} Ned5 {[%emt 0:04:30]} 19. Nxd5 {[%emt 0:01:17]} Nxd5 {[%emt 0:00:30]} 20. Qh3 {[%emt 0:00:43]} Bxa4 {[%emt 0:04:26]} 21. b3 {[%emt 0:12:40]} Bb5 {[%emt 0:02:06]} 22. Qxh6 {[%emt 0:03:11]} Qf6 {[%emt 0:00:27]} 23. Rd2 {[%emt 0:04:38]} Rc3 {[%emt 0:02:28]} 24. Bb1 {[%emt 0:01:52]} Qf4 {[%emt 0:01:34]} 25. Qxf4 {[%emt 0:01:17]} Nxf4 {[%emt 0:00:01]} 26. g3 {[%emt 0:00:27]} Nd5 {[%emt 0:03:02]} 27. h4 {[%emt 0:00:29]} Rfc8 {[%emt 0:00:26]} 28. Kh2 {[%emt 0:00:39]} Rxb3 {[%emt 0:01:00]} 29. Ba2 {[%emt 0:00:36]} Rbc3 {[%emt 0:00:22]} 30. h5 {[%emt 0:00:29]} gxh5 {[%emt 0:00:23]} 31. Bb1 {[%emt 0:00:33]} Rc1 {[%emt 0:00:27]} 32. Rxc1 {[%emt 0:00:13]} Rxc1 {[%emt 0:00:01]} 33. Be4 {[%emt 0:00:01]} Kg7 {[%emt 0:00:50]} 34. Kh3 {[%emt 0:00:24]} f6 {[%emt 0:02:13]} 35. Nd3 {[%emt 0:01:15]} Bxd3 {[%emt 0:01:27]} 36. Bxd3 {[%emt 0:00:09]} b5 {[%emt 0:00:56]} 37. Be2 {[%emt 0:00:47]} f5 {[%emt 0:01:18]} 38. Kh4 {[%emt 0:00:39]} Kf6 {[%emt 0:01:40]} 39. Bf3 {[%emt 0:00:27]} b4 {[%emt 0:00:45]} 40. Kh3 {[%emt 0:00:34]} Rc3 {[%emt 0:00:35]} 41. Kg2 {[%emt 0:01:01]} b3 {[%emt 0:00:57]} 42. Bxh5 {[%emt 0:00:48]} Rc2 {[%emt 0:02:15]} 43. Rd3 {[%emt 0:00:32]} b2 {[%emt 0:00:17]} 44. Rb3 {[%emt 0:00:43]} Nc3 {[%emt 0:00:32]} 45. d5 {[%emt 0:01:11]} b1=Q {[%emt 0:00:32]} 0-1

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.8"]
[White "Stigar, Petter"]
[Black "Michalek, Jan"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2217"]
[BlackElo "2251"]
[Annotator "NA"]
[PlyCount "19"]
[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 0:00:14]} 2. Nf3 {[%emt 0:01:56]} e6 {[%emt 0:01:34]} 3. c3 {[%emt 0:00:23]} Nf6 {[%emt 0:04:15]} 4. e5 {[%emt 0:00:46]} Nd5 {[%emt 0:00:07]} 5. g3 {[%emt 0:01:35]} d6 {[%emt 0:02:12]} 6. exd6 {[%emt 0:03:27]} Nc6 {[%emt 0:02:24]} 7. Bg2 {[%emt 0:00:57]} Bxd6 {[%emt 0:00:13]} 8. d4 {[%emt 0:01:50]} cxd4 {[%emt 0:06:33]} 9. Nxd4 {[%emt 0:00:40]} Nxd4 {[%emt 0:08:31]} 10. Qxd4 {[%emt 0:01:14]} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.9"]
[White "Sernecki, Franciszek"]
[Black "Grabarczyk, Miroslaw"]
[Result "1/2-1/2"]
[WhiteElo "2204"]
[BlackElo "2366"]
[Annotator "NA"]
[PlyCount "18"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. O-O O-O 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.22"]
[Round "6.10"]
[White "Steiner, Bruno"]
[Black "Roesemann, Rainer"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2117"]
[BlackElo "2231"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,122,10,10,6,10,0,32,25,25,2,0,0,18,0,6,0,8,0,0,0,0,0,0,0,0,-1,4,-28,-8,-107,-114,-126,-116,-152,-94,-92,-94,-95,-82,-96,0,0,0,0,0,0,0,0,1151,17,1279,56,618,9,9,11,9,0,0,-263,-267,-275,-271,-335,-305,-460,-332,-665,-645,-629,-564,-1065,-1062,-1031,-1023,-1039,-1014,-1820,-1694,-1487,-1452,-1286,-703,-681,-674,-12848,-854,-5289,-5289,-989,-772,-6303,-5551,-29981,-29981,-29988,-29989,-29989,-29988,-29989,-29987,-29991,-29975,-29986,-29987,-29986,-29987,-29989,-29990,-29990,-29991,-29991,-29992]} 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. Bg5 {Black should prevent Bxf6. B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} (7. cxd5 Nxd5 8. Qb3 Bxf3 9. gxf3 e6 10. Qxb7 Nxd4 11. Bb5+ Nxb5 12. Qc6+ Ke7 13. Qxb5 Qd7 14. a4 a6 15. Nxd5+ Qxd5 16. Qe2 Kf6 17. Bd2 Bd6 18. Rd1 Ke7 19. Bc3 Qf5 20. Qe4 Qxe4+ 21. fxe4 {½-½ (21) Petrov,N (2585)-Shirov,A (2684) Arica 2019}) 7... Ne4 8. Be3 Nxc3 (8... e6 {is interesting.} 9. cxd5 Nxc3 10. bxc3 Qxd5 11. Be2 Be7) 9. bxc3 {[%cal Bb2c3,Bc3c4][%mdl 32] White is slightly better.} e6 10. cxd5 Qxd5 11. Be2 Be7 12. O-O O-O 13. c4 $146 ({Predecessor:} 13. h3 Bxf3 14. Bxf3 Qd7 {1-0 (35) Lagno,K (2523)-Muzychuk,A (2534) Reykjavik 2015}) 13... Qd6 14. h3 Bf5 15. Bd3 Bxd3 16. Qxd3 Rfd8 17. Rab1 b6 18. Rfd1 Rac8 19. Qd2 Na5 20. Bf4 (20. c5 $1 $11 Qd5 21. Qc2) 20... Qa3 $17 21. Qe2 Nxc4 22. Rb3 Qa4 (22... Qa5 $142 $1 23. Rbb1 Qd5) 23. d5 Na5 24. Rd4 Rc4 25. Rbd3 Bf6 (25... h6 $17) 26. Be5 $11 Bxe5 27. Qxe5 exd5 28. Rxd5 Re8 29. Rd8 Re4 $2 {[%mdl 8192]} (29... Rc1+ $11 30. Kh2 Rc8 31. Rxc8 Rxc8) 30. Qc7 $2 ({Only move:} 30. Rxe8+ $18 Qxe8 31. Qxe4 $1 {[%mdl 512]}) 30... Qxa2 $2 {[%mdl 8192]} (30... h6 $11) 31. R3d5 $2 (31. Rxe8+ $18 Rxe8 32. Rd8) 31... Qc4 $2 {[%mdl 8192]} (31... h6 $14) 32. Re5 $2 (32. Rxe8+ $1 $18 Rxe8 33. Rd8 $1 {[%mdl 512]} Qc1+ 34. Qxc1 Rxd8 35. Qc7 $1 {[%mdl 576] Double Attack}) 32... R4xe5 ({Worse is} 32... Qxc7 33. Rdxe8#) 33. Nxe5 {[%cal Rd8e8]} Qe6 ({Not} 33... Qxc7 34. Rxe8#) 34. Qb8 Kf8 $1 35. Nf3 $2 {[%mdl 8192]} (35. Qc7 $11 {and White has nothing to worry.} f6 36. Rxe8+ Qxe8 37. Qd6+ Kg8 38. Qd5+ Kf8 39. Qd6+ Qe7 40. Qb8+ Qe8 41. Qd6+) 35... Nc6 $19 {[%mdl 64] Double Attack} 36. Rxe8+ Qxe8 37. Qc7 h6 38. g3 (38. Qd6+ $142 Kg8 39. Qd3) 38... Kg8 39. Nh4 $2 (39. Qb7) 39... b5 {[%cal Bb6b5,Bb5b4,Bb4b3][%mdl 32]} 40. g4 g6 41. f4 b4 42. f5 g5 43. Nf3 b3 {White must now prevent ...b2.} 44. Qb7 Qe3+ 45. Kg2 Qe2+ 46. Kg3 Qc4 {Threatens to win with ...Kg7.} 47. f6 Kh7 48. Nd4 Qd3+ (48... Nxd4 $142 49. Qe4+ {[#]} Nf5+ $1 {[%mdl 512]} 50. Qxf5+ Kg8) 49. Kh2 Nd8 50. Qb4 Ne6 51. Qe7 Kg6 52. h4 gxh4 {Black mates.} 53. Nf5 Qe2+ 54. Kh1 Qxg4 55. Nd6 Qf3+ 56. Kh2 Qxf6 57. Qb7 Qf4+ 58. Kg2 Qxd6 59. Qe4+ f5 60. Qxh4 Qd2+ 61. Kf1 Qf4+ {Accuracy: White = 29%, Black = 53%.} 0-1

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.6"]
[White "Roesemann, Rainer"]
[Black "Plischki, Sebastian"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2231"]
[BlackElo "2387"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,89,0,30,12,14,9,8,9,12,-9,2,-66,-72,-68,-77,-72,-68,-66,-66,-206,-210,-273,-258,-333,-331,-327,-317,-320,-306,-320,-312,-370,-351,-391,-381,-405,-399,-414,-413,-425,-454,-470,-433,-488,-489,-532,-512,-505,-502,-653,-623,-755,-758,-1038,-1010,-1153,-1082,-1891,-1837,-1820,-1718,-2845,-2180,-1775,-538,-450,0,0,0,0,0,0,0,0,0,14]} 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 O-O 5. e4 d6 6. Nge2 c5 7. d3 Nc6 8. O-O Bg4 9. f3 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} Bd7 10. Be3 a6 11. a4 Rb8 (11... Rc8 12. h3 Ne8 13. f4 Nd4 14. Bf2 Nxe2+ 15. Qxe2 Nc7 16. a5 Ne6 17. e5 {0-1 (57) Fier,A (2549)-Shtembuliak,E (2548) Saint Louis 2019}) 12. Qd2 Ne8 13. d4 (13. Rab1 $11) 13... cxd4 $15 14. Nxd4 Na5 $1 15. Qd3 Rc8 16. b3 Bxd4 17. Qxd4 $146 (17. Bxd4 $15 Nxb3 18. Rab1 Nxd4 19. Qxd4) ({Predecessor:} 17. Bxd4 Nxb3 {½-½ (60) Chmiel,M (2237)-Wiewiora,E (2343) Pokrzywna 2018}) 17... Nxb3 $19 {[%mdl 64] [#] Double Attack} 18. Qd1 Nxa1 19. Nd5 Nf6 ({Not} 19... Rxc4 20. Bb6 $17) 20. Nb6 Rc6 21. a5 Be6 22. Qxa1 Bxc4 23. Rd1 Qc7 24. h4 Re8 25. g4 Nd7 26. Qb2 Nxb6 27. axb6 Qd7 ({Don't take} 27... Qd8 28. g5 $19) 28. h5 e5 29. Qf2 Qe6 30. Qh4 Bb3 31. Re1 a5 32. Kf2 a4 33. Rh1 a3 34. Bh3 a2 35. g5 Qe7 36. Bf5 gxf5 37. exf5 Ra8 38. f6 Qe6 39. g6 a1=Q 40. Rxa1 Rxa1 $2 (40... Rc2+ $19 41. Kg3 Rcc8 42. Rxa8 Rxa8) 41. gxh7+ $11 {The position is equal.} Kxh7 42. Qg5 {[%csl Gf6][%cal Rg5g7]} Rc2+ 43. Kg3 {[%csl Gf6][%cal Rg5g7] [#]} Qxf6 $1 44. Qxf6 {White threatens h6 and mate.} Raa2 $1 {( -> ...Rg2+)} 45. Qh6+ {Accuracy: White = 22%, Black = 94%.} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.7"]
[White "Grabarczyk, Miroslaw"]
[Black "Steiner, Bruno"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2366"]
[BlackElo "2117"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,82,7,0,0,0,0,0,0,-7,-7,0,0,0,0,0,0,-5,0,0,0,0,38,44,45,35,114,112,170,78,133,37,52,59,50,50,114,50,42,45,89,86,88,95,96,83,104,102,137,133,136,139,682,673,836,696,1509,127,670,-693,134,114,256]} 1. d4 Nf6 2. Nf3 d5 3. g3 Bf5 4. Bg2 c6 5. O-O h6 6. c4 e6 7. Nc3 Nbd7 8. Nd2 Be7 9. e4 dxe4 10. Ndxe4 O-O 11. Be3 Nxe4 12. Nxe4 Nf6 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4} 13. Nc3 (13. Nxf6+ Bxf6 14. Qb3 Qd7 15. Rfd1 Rac8 16. Rac1 Rfd8 17. Rd2 {½-½ (17) Sedlak,N (2608)-Indjic,A (2599) Niksic 2018}) 13... Qc7 14. h3 Rfd8 {The position is equal.} 15. Qb3 Rd7 16. Rac1 $146 ({Predecessor:} 16. Rfd1) 16... Qa5 17. Rfd1 Rad8 18. Kh2 Bg6 19. Rd2 Kf8 20. a3 Bd6 21. Kg1 Qh5 22. d5 exd5 23. cxd5 cxd5 (23... Be5 $14) 24. Bxa7 $16 {[%cal Rc3d5]} Bf5 (24... Be5 $16) 25. Qd1 (25. Nxd5 $18 {and White stays clearly on top.} Nxd5 26. Rxd5) 25... Qg6 {[#]} (25... Qxd1+ $142 26. Rcxd1 (26. Rdxd1 Be5 $14) 26... Be5) 26. Nb5 (26. Nxd5 Nxd5 27. Rxd5 Bxg3 $11) (26. Bb6 $1 $16 {[%cal Rb6d8]} Bc7 27. Bxc7 Rxc7 28. Nxd5 Rxc1 29. Qxc1 Nxd5 30. Rxd5 (30. Bxd5 Qd6 $16) 30... Rxd5 31. Bxd5) 26... Be5 27. Bd4 Bxd4 28. Rxd4 Be4 {[#]} (28... Ng8 $14) 29. Nc3 ({White should try} 29. f3 $1 $16) 29... Bxg2 30. Kxg2 Kg8 31. Qf3 Rd6 32. Rcd1 Qg5 33. Re1 R6d7 34. h4 Qg6 35. Red1 Qc2 36. R1d2 (36. Nxd5 $6 Nxd5 37. Rxd5 Rxd5 $11) 36... Qb3 $2 {[%mdl 8192]} (36... Qc1 $16 37. Re2 (37. Nxd5 Nxd5 38. Rxd5 Rxd5 $11) 37... h5) 37. Rb4 $18 Ne4 38. Re2 Qc2 39. Rd4 $2 (39. Rxc2 $18 {and the rest is easy.} Nf6 40. Rd4) 39... Qc1 $2 {[%mdl 8192]} (39... Qb3 $16) 40. Rd1 {Played: Re2-d2} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.8"]
[White "Michalek, Jan"]
[Black "Sernecki, Franciszek"]
[Result "1/2-1/2"]
[ECO "B17"]
[WhiteElo "2251"]
[BlackElo "2204"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,44,41,33,45,28,50,45,59,53,63,44,66,71,78,89,348,34,33,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bc4 e6 8. O-O Be7 9. Qe2 O-O 10. Re1 c5 {B17: Caro-Kann: Modern Line (4...Nd7)} (10... b5 11. Bb3 a5 12. c3 Qb6 13. Ne5 c5 14. Be3 c4 15. Bc2 Bb7 16. Bg5 Qd8 17. a4 Rc8 18. axb5 {1-0 (31) Salov,S (2190)-Hewson,B (2060) Hersonissos 2017}) 11. Bg5 Qc7 12. Rad1 $146 ({Predecessor:} 12. c3 b6 13. d5 exd5 14. Bxf6 Bxf6 15. Bxd5 Bb7 16. Bxb7 Qxb7 17. Rad1 h6 18. Qb5 {½-½ (18) Fuchsgruber,H-Rosicki,H Bayern 1995}) 12... a6 {White is slightly better.} 13. dxc5 Qxc5 14. Ne5 b5 15. Qf3 Rb8 16. Bd3 h6 $2 {[%mdl 8192]} (16... Nd5 $16 {might work better.} 17. Bxe7 Nxe7) 17. Bf4 $2 (17. Bxf6 $1 $18 {White wants to mate with Qe4.} Bxf6 18. Qe4) 17... Bb7 $14 18. Qh3 (18. Qg3 $5 {[%cal Rf4h6]} Nh5 19. Nd7 $11) 18... Rbd8 $1 {The position is equal.} 19. Bxh6 gxh6 20. Qg3+ $1 (20. Qxh6 {[#]} Ne4 $1 $17 {[%mdl 512]}) 20... Kh8 {[#] And now ...Ne4! would win.} 21. Qf4 Kg7 {White must now prevent ...Rg8.} 22. Qg3+ $1 Kh8 {Accuracy: White = 58%, Black = 38%.} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.9"]
[White "Vagman, Roy"]
[Black "Stigar, Petter"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2089"]
[BlackElo "2217"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,35,6,23,3,5,-24,-22,-37,-9,-51,-59,-51,-37,-39,-25,-31,-33,-33,0,-27,0,-31,0,-36]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 Nc6 6. Nc3 Nxc3 7. dxc3 Be7 8. h3 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} (8. Be3 O-O 9. Qd2 Bf5 10. Be2 Qd7 11. O-O Bf6 12. Rad1 Rad8 13. Nd4 Nxd4 14. Bxd4 Bxd4 15. cxd4 Rfe8 {½-½ (32) Khanin,S (2514)-Gelfand,B (2673) St Petersburg 2018}) 8... Bf5 9. Nd4 $146 (9. Bd3 {feels hotter.} Qd7 10. O-O O-O 11. Re1 Bf6 12. Qc2) ({Predecessor:} 9. Bd3 Bxd3 10. Qxd3 O-O 11. Bf4 Bf6 12. O-O-O Re8 13. c5 Be5 {0-1 (36) Sierra,M (2300)-Cornejo Perales,G (2172) Lima 2004}) 9... Nxd4 10. cxd4 O-O 11. Qf3 Qd7 12. Be2 Bf6 13. Be3 Rfe8 14. O-O Be4 15. Qg4 Bf5 16. Qf3 Be4 17. Qg4 Bf5 18. Qf3 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.23"]
[Round "7.10"]
[White "Abhilash, Reddy M.L."]
[Black "Tymrakiewicz, Rafal"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2258"]
[BlackElo "2254"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,112,48,13,19,17,51,48,56,41,81,56,62,57,89,66,76,44,138,56,59,56,41,43,90,89,66,80,71,85,94,103,97,96,115,60,55,41,105,60,74,41,96,95,97,96,141,137,180,170,215,208,183,158,175,189,213,134,142,126,177,106,113,53,60,63,121,107,175,162,190,97,97,57,70,33,31,41,23,27,68,0,0,0,0,0,13,0,6,0,0,0,8,0,0,0,0,0,0,0,-13]} 1. d4 d5 2. Nf3 c5 3. e3 cxd4 4. exd4 Nc6 5. Bd3 g6 6. c3 Nh6 7. Bf4 Bg7 8. Qd2 Nf5 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} 9. Na3 (9. O-O O-O 10. Re1 f6 11. h3 Re8 12. Na3 e5 13. dxe5 fxe5 14. Bg5 Qa5 15. Bb5 a6 16. Bxc6 bxc6 {0-1 (39) Rjabzev,K (2270)-Triapishko,A (2508) St Petersburg 2017}) 9... a6 10. h4 $146 ({Predecessor:} 10. h3 h6 11. Nc2 Nd6 12. Ne3 Ne4 13. Qc2 f5 14. h4 Be6 {1-0 (25) Hrisomalis,T (2089)-Drakaki,A (1834) Thessaloniki 2012}) 10... h5 {White is slightly better.} 11. Nc2 b5 12. Ne5 Qb6 13. Qe2 Ra7 14. Nxc6 Qxc6 15. Nb4 Qd7 (15... Qb7 $1 $14) 16. a4 (16. Bb8 $16) 16... bxa4 $14 17. Bc2 O-O 18. Bxa4 Qb7 {With the idea ...Nxd4!} 19. Nc6 Ra8 20. Na5 $36 {[%mdl 2048] White has strong initiative.} Qb6 21. Bc6 {[%mdl 64] Double Attack} Ra7 22. Bxd5 Bd7 23. Nc4 Qd8 24. Ne5 (24. b3 $16) 24... Bb5 25. Bc4 Bxc4 (25... Qb6 $14) 26. Qxc4 Qb6 27. Qe2 Qb7 (27... a5 $14) 28. Nf3 $16 Bf6 29. Ra5 e6 30. Bg5 Bg7 31. O-O Rb8 32. b4 Rc8 33. Bd2 Bf6 34. Rfa1 Rca8 35. Qc4 Bd8 36. R5a4 Bxh4 (36... Nd6 $16 37. Qa2 Bf6) 37. Qe2 (37. Nxh4 $18 Rc8 38. Qf1 (38. Rxa6 Rxc4 39. Rxa7 Qd5 $11) 38... Nxh4 39. b5 $1 {[%mdl 512]} (39. Rxa6 $2 Rxa6 40. Rxa6 Nxg2 $19)) 37... Bd8 38. c4 ({White should play} 38. Qd3 $16) 38... Bf6 $14 39. Bc3 h4 (39... Nd6 $14) 40. Ra5 $16 Qc8 (40... Nd6 $16) 41. Ne5 $18 Qb7 {[#]} 42. Qd3 ({White should try} 42. d5 $1 $18) 42... Rd8 $16 43. Rd1 Raa8 44. d5 {aiming for Nc6.} Bxe5 $1 45. Bxe5 Qxb4 46. Bc3 Qe7 47. Qe4 (47. Qf3 $1 $14) 47... exd5 $11 {The position is equal.} 48. Qxe7 Nxe7 49. Bf6 Rd7 (49... Kf8 {looks sharper.} 50. cxd5 Rd6 51. Bxh4 Rad8 52. g4 f6) 50. Bxh4 Kg7 51. Bxe7 (51. cxd5 {keeps more tension.} f6 52. Bg3 Rc8 53. d6 Rc6 54. Bh2) 51... Rxe7 52. cxd5 {KRR-KRR} Rd7 53. Rc1 Rad8 54. Rc6 Rxd5 55. Rxd5 Rxd5 56. Rxa6 Rd1+ {Accuracy: White = 42%, Black = 35%.} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.6"]
[White "Plischki, Sebastian"]
[Black "Tymrakiewicz, Rafal"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "2387"]
[BlackElo "2254"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,102,27,45,41,34,38,31,46,49,29,61,51,52,10,10,13,16,0,18,0,0,0,0,0,47,53,46,50,39,0,0,-6,0,0,0,0,16,0,0,-15,0,0,0,0,0,0,0,0,0,-70,-80,-88,-48,-8,-8,-87,-87,-87,-78,-87,-86,-86,-8,-12,0,0,0,0,0,-86,-71,-77,-84,-80,-80,-200,-218,-200,0,-330,-332,-412,-181,-569,-566,-543,-548,-587,-566,-404,-431]} 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 a6 5. d4 b5 6. b3 Bg4 7. Be2 Nbd7 8. h3 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} Bh5 9. g4 Bg6 10. Ne5 {White is slightly better.} Nxe5 11. dxe5 Qa5 $146 ({Predecessor:} 11... Nd7 12. cxd5 cxd5 13. e6 fxe6 14. Bb2 Qb6 15. h4 Qd6 {0-1 (43) Matlakov,M (2735)-Volkov,S (2645) St Petersburg 2017}) 12. Bd2 ({Much worse is} 12. exf6 $6 Qxc3+ 13. Bd2 Qxf6 $11) 12... b4 13. Nxd5 Nxd5 14. cxd5 Qxd5 15. O-O e6 16. Bf3 Be4 17. Bxe4 Qxe4 18. Rc1 Rd8 (18... c5 {keeps more tension.} 19. f4 Rd8 20. Qe2 Be7 21. Rfd1 Rd3) 19. Qc2 Qxc2 20. Rxc2 c5 21. Rd1 Be7 22. Kf1 h5 23. g5 O-O 24. Ke2 Rd7 25. f4 Rfd8 26. Rcc1 Kf8 27. e4 Ke8 28. Be3 Rxd1 29. Rxd1 Rxd1 30. Kxd1 $11 {[%mdl 4096] Endgame KB-KB} Kd7 31. Kc2 (31. f5 $1 $11) 31... Kc6 $1 $15 32. Kd3 Kb5 $1 33. Bc1 Bd8 34. Bd2 (34. Bb2 $11) 34... Bb6 35. Be3 g6 36. Bf2 a5 37. Be3 Bc7 (37... c4+ $1 $17 38. bxc4+ Kc6) 38. Bf2 $11 Bb8 39. Be3 Ba7 (39... Bc7 $11) 40. Bf2 $17 Bb6 41. Be3 {[#]} c4+ $1 42. bxc4+ Kc6 {...Bxe3 is the strong threat.} 43. Bc1 Bf2 {[%mdl 1024] Black has strong compensation.} 44. Bd2 (44. a4 $17) 44... Kc5 $19 45. Bc1 {[#]} Bg1 $2 (45... a4 $1 $19 46. Bd2 b3 47. axb3 axb3) 46. Bb2 $2 {[%mdl 8192]} (46. a4 $1 $11) 46... a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 47. Bc1 Bf2 (47... Bd4 $142 48. a3 b3) 48. Bb2 $2 (48. Bd2 {nothing else works.}) 48... a3 49. Bc1 {intending Bd2.} Bd4 50. f5 Bg1 51. Bd2 {With the idea Be1.} Bf2 {Accuracy: White = 56%, Black = 54%.} 0-1

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.7"]
[White "Stigar, Petter"]
[Black "Abhilash, Reddy M.L."]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2217"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,28,0,14,4,2,15,50,38,39,41,49,57,50,34,58,31,35,38,38]} 1. d4 d5 2. Nf3 $146 ({Predecessor:} 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Nc3 e6 6. Qb3 Qb6 7. c5 Qc7 8. Bf4 Qc8 9. Nh4 Bg6 10. Nxg6 hxg6 11. Bg2 {1-0 (52) Nyzhnyk,I (2612)-Kumar,A (2186) Philadelphia 2017}) 2... Nf6 3. g3 c6 4. Bg2 Bf5 5. c4 e6 6. Nc3 Nbd7 7. Qb3 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4} Qb6 8. c5 Qc7 9. Bf4 {White is slightly better.} Qc8 $1 10. Nh4 Bg6 11. Nxg6 hxg6 12. Qc2 Be7 13. a3 Bd8 14. b4 Bc7 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.8"]
[White "Sernecki, Franciszek"]
[Black "Vagman, Roy"]
[Result "1-0"]
[ECO "B28"]
[WhiteElo "2204"]
[BlackElo "2089"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,147,36,29,-25,-18,-27,48,53,53,47,62,54,74,70,82,89,108,80,173,169,461,194,240,0,454,0,156,85,85,90,90,45,46,48,45,49,92,85,85,85,85,85,100,100,100,100,100,100,101,106,106,83,97,76,100,100,100,100,156,106,107,100,100,100,133,53,165,50,157,0,163,162,238,216,416,394,387,384,466,455,455,427,400,389,342,341,626,577,410,345,29958,12802,29963,29964,29966,29967,29966,29949,29965,29965,29959,29959,12811,4706,5059,0,29983,29984,29984,29985,29985,29986,29986,29987,29989,29982,29995,29996,29996,29996,29996,29996,29997,29994,29994,29994,29995,29996,29998,29998]} 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Qd6 9. O-O Nc6 10. Be3 Be7 11. Qb3 {B28: Sicilian: 2 Nf3 a6 (O'Kelly Variation)} (11. Nd2 $142) (11. Qd2 O-O 12. Bf4 Qd8 13. Rfd1 Nb4 14. Ne5 Nfd5 15. Bf3 f6 16. Nd3 Nc6 17. Be3 Nxe3 18. fxe3 f5 {1-0 (54) Najer,E (2707)-Vitiugov,N (2724) Tbilisi 2017}) 11... b5 $11 12. Ne5 $146 {aiming for Nxc6.} ({Predecessor:} 12. Rfd1 Bb7 13. Rac1 O-O 14. Bg5 Rfd8 15. Bxf6 Bxf6 16. d5 Na5 17. Qc2 Bxd5 18. Nxd5 exd5 {1-0 (61) Gledura,B (1914)-Buzas,B Balatonlelle 2009}) 12... Nxe5 (12... Bb7 $11) 13. dxe5 $14 {White is slightly better.} Qxe5 14. Bf3 $1 {[%cal Rf3a8]} Rb8 15. Ba7 {[%mdl 1024] White has compensation.} Bd6 {[%csl Gd6][%cal Re5h2]} 16. g3 $36 {[%mdl 2048] Rfe1 is the strong threat. White is pushing.} Rb7 17. Rfe1 Qf5 18. Ne4 Nxe4 (18... Be7 $16 {was necessary.} 19. Nxf6+ gxf6 20. Bxb7 Bxb7) 19. Bxe4 $18 Qh3 $2 (19... Qf6 {was called for.} 20. Bc6+ (20. Bxb7 Bxb7 21. Rad1 Qe7 $14) 20... Ke7) 20. Bg2 (20. Bc6+ $142 Rd7 21. Rac1) 20... Qf5 21. Be4 $2 (21. Bc6+ $1 Ke7 22. Be4) 21... Qh3 $1 22. Bg2 $2 (22. Bc6+ $1 $18 Rd7 23. Rac1) 22... Qf5 $1 $16 23. Bxb7 (23. Bc6+ $142 $1 Ke7 24. Be4) 23... Bxb7 24. Rad1 $1 {[%cal Rd1d6]} Ke7 25. Qd3 ({Much worse is} 25. Rxd6 Kxd6 26. Qa3+ Kd7 $11) 25... Qxd3 26. Rxd3 Rc8 27. Bd4 Bb4 28. Bc3 Bxc3 29. Rxc3 Rxc3 30. bxc3 {[%mdl 4096] Endgame KR-KB} Bd5 31. Ra1 Kd6 32. Kf1 Kc5 33. Ke2 Kc4 34. Kd2 $1 Bc6 35. Re1 Bd5 36. Kc2 f5 37. f4 Be4+ 38. Kd2 h6 (38... Bd5 $142) 39. Ra1 Bc6 40. Rb1 a5 41. Ra1 Be4 42. Re1 (42. a4 $16) 42... a4 (42... h5 $14) 43. Re3 (43. g4 $1 $18) 43... Kc5 ({Black should try} 43... a3 $14) 44. Re1 Kc4 45. g4 $1 g6 (45... Kc5 $142 46. gxf5 Bxf5) 46. h4 $18 {Black must now prevent h5.} h5 $2 (46... Kc5 47. h5 gxh5 48. gxh5 Kd6) 47. gxh5 gxh5 48. Rg1 Bf3 49. Rb1 Kc5 50. Rb4 Bd5 51. a3 Bc4 52. Rb1 Kd5 $2 (52... Bd5 53. Rg1 Kc4) 53. Re1 Ba2 54. Re5+ Kc4 $2 (54... Kc6 $18 55. Kd3 Bd5) 55. Rxe6 Kb3 56. Re5 Kxa3 57. Rxb5 Bc4 58. Rb4 Bb3 {[#]} 59. Kc1 $1 Ka2 60. Rb5 Be6 {[#]} 61. Rb6 (61. c4 $142 $1 Bxc4 62. Rxf5) 61... Bd5 62. Rb5 $2 ({White has to play} 62. Rb2+ $18 Ka3 63. Rb5) 62... Be4 $2 {[%mdl 8192]} (62... Be6 $11 63. c4 {[%mdl 64] Deflection} Bxc4 64. Rxf5 Bf1 65. Rxh5 Bd3) 63. c4 {[%cal Bc3c4,Bc4c5,Bc5c6,Bc6c7][%mdl 32] White mates.} Bd3 64. Rb2+ Ka1 65. c5 Be4 66. Rb6 a3 67. c6 a2 68. c7 Bb7 69. Kd2 Bc8 70. Kc3 Bb7 71. Kd4 Bc8 72. Kc4 Bb7 73. Kc3 Bc8 74. Rg6 {Accuracy: White = 55%, Black = 35%.} 1-0

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.9"]
[White "Steiner, Bruno"]
[Black "Michalek, Jan"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2117"]
[BlackElo "2251"]
[Annotator "NA"]
[PlyCount "66"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 g6 2. c4 Bg7 3. Nc3 c5 4. Nge2 Nc6 5. g3 Ne5 6. Bg2 Nd3+ 7. Kf1 d6 8. Qc2 Nxc1 9. Rxc1 Nf6 10. d3 h5 11. h4 Nd7 12. Bh3 e6 13. Kg2 Ne5 14. Rcd1 Nc6 15. Rde1 g5 16. hxg5 Qxg5 17. a3 Bd7 18. d4 Bxd4 19. Nb5 Ke7 20. f4 Qg7 21. b4 Rag8 22. Rhf1 b6 23. Rf3 Rc8 24. Nexd4 Nxd4 25. Nxd4 cxd4 26. Qd3 b5 27. cxb5 Rc3 28. Qf1 Rhc8 29. e5 dxe5 30. f5 Rxf3 31. Qxf3 exf5 32. Qd5 f6 33. Bxf5 Bxf5 0-1

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.24"]
[Round "8.10"]
[White "Roesemann, Rainer"]
[Black "Grabarczyk, Miroslaw"]
[Result "1/2-1/2"]
[WhiteElo "2231"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "23"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,18,45,25,59,37,36,31,45]} 1. d4 d5 2. Bf4 Nf6 3. e3 c6 4. c4 Bf5 5. Nc3 dxc4 6. Bxc4 e6 7. Nf3 Be7 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} (7... Bd6 8. Bxd6 Qxd6 9. Bd3 Bxd3 10. Qxd3 Nbd7 11. O-O O-O 12. e4 {½-½ (12) Domogaev,S (2398)-Gusev,A (2368) Tula 2018}) 8. h3 Nbd7 9. O-O O-O {Predecessor:} 10. Re1 $146 Rc8 11. Bb3 Nb6 12. Bh2 {½-½ (50) Dragomir,C (1399)-Palos,A (1552) Calimanesti Caciulata 2019} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.6"]
[White "Grabarczyk, Miroslaw"]
[Black "Plischki, Sebastian"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2366"]
[BlackElo "2387"]
[Annotator "TA"]
[PlyCount "19"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,17,0,15,0]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Nh5 7. Bc1 Nf6 8. Bf4 Nh5 9. Bc1 {D13: Slav Defence: Exchange variation without ...Bf5} (9. Bd2 Nf6 {½-½ (10) Carlsen,M (2870)-Nepomniachtchi,I (2773) Kolkata 2019}) {Predecessor:} 9... Nb8 $146 10. Nb1 {½-½ (10) Maiorov,N (2514)-Svetushkin,D (2536) Kazan 2019} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.7"]
[White "Michalek, Jan"]
[Black "Roesemann, Rainer"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2251"]
[BlackElo "2231"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,15,20,23]} 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6 8. O-O {Predecessor:} d5 $146 9. Qc2 Nbd7 10. Rd1 Rc8 11. a4 O-O 12. Na3 Bb7 13. Qb2 c5 14. Be1 Re8 15. e3 cxd4 16. Nxd4 a6 17. a5 Qc7 18. axb6 Qxb6 19. cxd5 Bxd5 20. Bxd5 Nxd5 {1-0 (67) Yu,Y (2751)-Ivanchuk,V (2726) Huaian 2017} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.8"]
[White "Vagman, Roy"]
[Black "Steiner, Bruno"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2089"]
[BlackElo "2117"]
[Annotator "NA RC"]
[PlyCount "7"]
[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]} e5 {[%emt 0:00:02]} 2. Nf3 {[%emt 0:00:16]} Nf6 {[%emt 0:00:55]} 3. Nxe5 {[%emt 0:01:37]} d6 {[%emt 0:01:14]} 4. Nxf7 {[%emt 0:05:58]} 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.9"]
[White "Abhilash, Reddy M.L."]
[Black "Sernecki, Franciszek"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2258"]
[BlackElo "2204"]
[Annotator "NA RC"]
[PlyCount "9"]
[EventDate "2020.01.18"]
[EventType "tourn"]
[EventCountry "CZE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. e3 c5 5. Nc3 1/2-1/2

[Event "Marienbad Open IM1 2020"]
[Site "Marianske Lazne"]
[Date "2020.01.25"]
[Round "9.10"]
[White "Tymrakiewicz, Rafal"]
[Black "Stigar, Petter"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2254"]
[BlackElo "2217"]
[Annotator "NA RC"]
[PlyCount "7"]
[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 0:01:47]} 2. Bf4 {[%emt 0:00:52]} Nf6 {[%emt 0:00:09]} 3. e3 {[%emt 0:00:14]} e6 {[%emt 0:00:09]} 4. Nd2 {[%emt 0:00:34]} 1/2-1/2

