[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.15"]
[Round "1.4"]
[White "Bjerre, Jonas Buhl"]
[Black "L'Ami, Erwin"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2586"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,117,18,19,14,0,0,0,0,-8,7,12,0,12,21,20,23,27,41,8,25,20,22,13,13,4,12,5,8,6,69,64,66,0,0,9,1,3,5,8,9,11,5,0,10,0,6,-5,0,-16,-16,-26,-15,-9,-12,-5,-4,-10,-15,-17,-15,-15,77,77,76,84,77,72,67,67,73,64,64,63,125,125,126,86,92,82,218,218,218,218,218,214,314,211,222,186,186,186,216,214,341,332,399,350,333,209,400,401,401,401,827,755,983,884,29983,29984]} 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. e3 Bg4 5. Qb3 Qb6 6. Ne5 Bf5 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} 7. cxd5 $1 {[%mdl 4] outshines the older 7.Nc3.} Qxb3 8. axb3 Nxd5 {The position is equal.} 9. Na3 {[%cal Bb1a3,Ba3c4,Bc4a5][%mdl 32]} Nd7 10. Nxd7 Bxd7 11. Nc4 e6 12. Bd2 Be7 13. Be2 O-O 14. O-O {[#]} (14. Ne5 $5 {[%cal Re5d7]} Be8 15. Nd3 $11) 14... Rfd8 $146 ({Predecessor:} 14... c5 15. Ne5 Be8 16. dxc5 Bxc5 17. Rfc1 Be7 18. e4 Nb6 19. Be3 Bf6 20. Bxb6 Bxe5 21. Rxa7 Rxa7 22. Bxa7 {½-½ (31) Hertneck,G (2520)-Riemersma,L (2426) Amsterdam 2013}) 15. Rfc1 Be8 16. Na5 Rd7 17. Bf3 Rc8 18. Nc4 b6 19. e4 {Hoping for Ne5.} Nf6 ({Black should try} 19... Nb4 $11) 20. Be3 $14 {White is more active.} c5 21. d5 ({White should play} 21. dxc5 $14 Bxc5 22. Bxc5 Rxc5 23. e5) 21... exd5 $11 22. exd5 Nxd5 23. Bg4 Rcc7 24. Bxd7 Bxd7 25. Bd2 {[%cal Ob3b4]} Be6 26. Rd1 h5 27. Be1 Kh7 28. f3 h4 29. Rd3 Bf6 {[%mdl 1024] Black has compensation.} 30. Bf2 Nb4 31. Rd2 Nc6 32. Kh1 g5 33. Re1 Nd4 34. Bxd4 Bxd4 35. Nd6 a5 {[#]} (35... Bh8 $11 {keeps the balance.}) 36. Nb5 $1 $16 {[%csl LRc7,LRd4]} Rc6 37. Nxd4 cxd4 {[%mdl 4096] Endgame KRR-KRB} 38. Kg1 {[%cal Ob3b4]} Bxb3 39. Rxd4 Be6 40. Re2 {To avoid Rc2} Kg6 41. h3 Rc5 {[#]} (41... Kf5 $14) 42. f4 $1 Rb5 43. fxg5 Kxg5 44. Rde4 {Black must now prevent Re5+.} Kg6 {A mistake that costs the game.} (44... Rb3 $16 {was worth a try.}) 45. Rxh4 $18 Rb3 46. Ra4 Kf6 47. Kh2 Ke7 (47... Kg6 $142 48. Ra3 Rb5 49. Rg3+ Kh6) 48. Rf2 Kf8 49. g4 {[%cal Bg2g4,Bg4g5][%mdl 32]} Kg7 50. h4 Kg6 51. g5 b5 (51... Re3 $142 52. Rf6+ Kg7) 52. Rxa5 Kh5 53. Rg2 Rb4 54. Kg1 {aiming for Ra6.} Bh3 $2 (54... Kxh4 55. Ra6 Bg4) 55. Rh2 Be6 56. Ra8 Kg4 (56... Rc4 $142 57. Re8 Rc1+ 58. Kf2 Rd1) 57. h5 Rd4 58. Rg2+ ({Inferior is} 58. h6 Rd1+ 59. Kf2 Rd2+ 60. Kg1 Rd1+ 61. Kf2 Rd2+ 62. Kg1 Rd1+ $11) 58... Kxh5 59. g6 {Weighted Error Value: White=0.11 (very precise) /Black=0.34} 1-0

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.17"]
[Round "3.7"]
[White "Bjerre, Jonas Buhl"]
[Black "Maurizzi, Marc`Andria"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2586"]
[BlackElo "2496"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,47,30,20,21,25,25,31,-6,-4,0,0,-5,0,0,0,0,0,0,14,8,35,29,25,28,27,29,28,14,107,107,112,106,104,124,142,143,142,143,974,961]} 1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Nc3 {[#]} c6 $146 ({Predecessor:} 4... Nf6 5. a4 a5 6. Bg2 Bf5 7. Nh4 e6 8. Nxf5 exf5 9. Qd3 Qd7 10. O-O Bb4 11. Bh3 {1-0 (60) Svane,R (2628)-Vachier Lagrave,M (2766) Chess.com INT 2021}) 5. a4 a5 6. e4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} dxe4 7. Nxe4 Nf6 8. Nc5 {White is slightly better.} e5 $1 9. Qe2 {[%cal Od4e5]} Bxc5 10. dxc5 Nbd7 11. Nxe5 O-O {[%cal Bh8f8,Bf8e8,Be8e5][%mdl 32] aiming for ...Nxe5.} 12. Nxd7 Bxd7 13. Bg2 Re8 14. Be3 Ng4 (14... Bf5 {keeps more tension.} 15. O-O Ng4 16. Ra3 Qf6 17. Rb3 Rab8) 15. O-O-O Nxe3 16. fxe3 {[%cal Og2h3,Bf2e3,Be3e4][%mdl 32]} Qc7 17. Rd6 Re5 $1 18. Rhd1 Bf5 (18... Be8 $1 $11) 19. e4 $16 {And now Qh5 would win.} Rae8 20. Qh5 g6 21. Qh4 $36 {[%mdl 2048] Black is under strong pressure. White is more active.} Be6 {[#]} 22. Qf6 $1 ({Don't take} 22. Rd8 $6 Rxd8 23. Qxd8+ (23. Rxd8+ Kg7 $11) 23... Qxd8 24. Rxd8+ Kg7 $14) 22... Bg4 {[#]} 23. Bf3 Bxf3 {[%mdl 8192]} (23... R5e6 $16 24. Rxe6 Bxe6) 24. Rd7 {[%mdl 64] Skewer, Double Attack.  Weighted Error Value: White=0.03 (flawless) /Black=0.12 (very precise)} ({Weaker is} 24. Qxf3 Qe7 $16) 1-0

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.20"]
[Round "5.3"]
[White "Bjerre, Jonas Buhl"]
[Black "Warmerdam, Max"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2586"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,117,27,29,16,10,6,0,7,-10,0,0,15,12,11,0,10,7,0,0,15,17,18,27,21,6,4,7,12,0,0,0,0,0,2,-10,0,0,0,0,0,0,0,0,0,0,0,0,0,-25,-14,-18,-10,-15,-15,-81,-14,-25,-16,-28,-33,-71,0,0,0,0,0,0,54,49,117,0,35,37,87,87,87,106,139,81,139,22,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 d4 5. O-O Nc6 6. d3 Bc5 {is the new trend. A13: English Opening: 1...e6.} 7. Na3 O-O 8. Nc2 e5 9. a3 a5 $1 {Inhibits b4.} 10. b3 h6 {[#]} 11. Rb1 $146 ({Predecessor:} 11. Bd2 Re8 12. b4 Bf8 13. b5 Nb8 14. e3 dxe3 15. Bxe3 Ng4 16. Bc1 Nd7 17. h3 {1-0 (70) Kotanjian,T (2473)-Vardanian,H (2359) Yerevan 2016}) 11... Qe7 12. Qe1 e4 13. dxe4 Nxe4 {Threatens to win with ...Nc3.} 14. Bb2 {[%cal Rf3d4] To avoid Nc3} Nc3 15. Bxc3 dxc3 16. Qxc3 {b4 is the strong threat.} Bf5 (16... Qxe2 $2 17. Rbe1 Nd4 18. Ncxd4 $18) 17. Nh4 Bh7 {This bishop pair is nice.} 18. e4 Bxa3 (18... Bxe4 19. Rbe1 f5 20. Nxf5 $1 Rxf5 21. Bxe4 $16) 19. Nxa3 Qxa3 20. Nf5 Bxf5 21. exf5 Qc5 22. g4 {[%cal Bg3g4,Bg4g5][%mdl 32]} Ne5 23. Qg3 c6 24. Rfe1 f6 25. h4 Rad8 26. g5 {Black must now prevent gxf6.} Kh8 27. Rbd1 Rxd1 28. Rxd1 Qe7 {[%cal Rh6g5]} 29. gxh6 gxh6 30. Qe3 Qg7 31. Kh1 Rg8 {[%csl Gg8][%cal Rg7g2]} 32. Bh3 {Active counter play!} (32. Bf3 $11) 32... Kh7 (32... b5 $17 33. f4 Ng4) 33. f4 $11 Ng4 34. Qe2 {aiming for h5.} h5 {[%cal Ob7b5]} 35. Rg1 Kh6 (35... b5 $1 $17) 36. Bxg4 hxg4 {[%mdl 4096] Endgame KQR-KQR} 37. Rd1 b5 38. Qe6 g3 (38... Qf8 $11) 39. Kg2 $1 $14 Rf8 (39... Qf8 $14) 40. Rd7 (40. Rd3 $16 Qf7 41. Qxc6 (41. Rxg3 Qe8 $16)) 40... Qg8 (40... Qg4 $5 {[%cal Rg4h4]} 41. Qe7 Rf7 42. Qxf7 Qe2+ 43. Kxg3 Qe3+ 44. Kg4 Qe2+ 45. Kg3 Qe3+ 46. Kg2 Qe2+ 47. Kh1 (47. Kg3 Qe3+ $11) 47... Qf1+ 48. Kh2 Qf2+ 49. Kh3 Qf3+ 50. Kh2 Qf2+ 51. Kh1 Qf1+ 52. Kh2 Qf2+ $11) 41. Rd3 Qxe6 (41... a4 $14) 42. fxe6 $16 bxc4 43. bxc4 $14 {KR-KR} ({But not} 43. Rxg3 cxb3 44. Rxb3 Kg6 $11) 43... Kg6 {[#]} 44. Kxg3 ({Much weaker is} 44. Rxg3+ $6 Kf5 $11) ({White should try} 44. Rd6 $1) 44... a4 {[#]} ({Better is} 44... f5) 45. Kf3 (45. Rd6 $1 $16) 45... f5 $1 $11 {The position is equal.} 46. Rd6 {e7+ would kill now.} Kf6 47. Rxc6 {And now h5 would win.} Ra8 48. Rb6 a3 {( -> ...a2)} 49. Rb1 a2 50. Ra1 Ra3+ 51. Kg2 Kxe6 52. h5 $1 Kf6 53. c5 $1 Kg7 54. c6 Kh6 55. c7 Rc3 56. Rxa2 Rxc7 57. Ra5 Kxh5 58. Rxf5+ Kg4 59. Rg5+ {Weighted Error Value: White=0.12 (very precise) /Black=0.11 (very precise)} 1/2-1/2

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.22"]
[Round "7.5"]
[White "Bjerre, Jonas Buhl"]
[Black "Vogel, Roven"]
[Result "1-0"]
[ECO "C88"]
[WhiteElo "2586"]
[BlackElo "2452"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,101,44,22,44,27,106,94,108,95,87,91,125,139,125,132,139,120,184,197,202,153,150,124,143,129,181,167,159,164,186,177,185,187,182,157,157,167,204,189,195,195,199,161,169,164,182,172,198,194,186,178,186,177,164,143,189,183,234,225,254,253,246,202,246,235,229,229,235,186,271,270,277,259,260,271,297,279,385,402,396,405,438,346,456,448,495,481,405,366]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3,Bb3a2][%mdl 32]} a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 $1 {[%mdl 4] Strongly threatening axb5. is currently scoring better than 8.c3.} Na5 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} 9. Ba2 {[#]} b4 $146 (9... d6 $11) ({Predecessor:} 9... d5 10. exd5 e4 11. Ne5 Bb7 12. d4 Nxd5 13. Nc3 Nxc3 14. bxc3 Bd5 15. Bf4 Bxa2 16. Rxa2 {1-0 (67) Durarbayli,V (2612)-Ivanisevic,I (2650) Baku 2016}) 10. Nxe5 $16 Bb7 {White is better.} 11. d3 {[%cal Bd2d3,Bd3e4,Be4e5][%mdl 32] White is more active.} d5 {[%cal Rd5e4]} 12. Nd2 dxe4 13. dxe4 ({Reject} 13. Nxe4 $6 Nxe4 14. dxe4 Qxd1 15. Rxd1 Bxe4 $11) 13... Qd4 14. Nd3 Rad8 15. Qe2 Bd6 (15... c5 $16 {keeps fighting.}) 16. e5 $18 Rfe8 17. Nf3 Bxf3 18. Qxf3 Bxe5 {[%cal Ob4b3]} 19. Be3 $1 ({Don't play} 19. Rxe5 $6 Rxe5 20. Be3 Rxe3 $1 21. fxe3 Qd6 $11) 19... Qg4 (19... Qd7 $16) 20. Qxg4 Nxg4 21. Bg5 $36 {[%mdl 2048] White is on the roll. This bishop pair is nice.} Bxh2+ 22. Kh1 Bd6 23. Bxd8 Rxd8 24. f3 Nf6 25. Ne5 {Prevents Nc6.} b3 26. Bxb3 Nxb3 27. cxb3 Rb8 28. Nc4 Bg3 29. Re3 Nd5 30. Re4 Nf4 31. Rd1 g6 32. Re3 Ne6 33. Kg1 h5 34. Kf1 Kg7 (34... Bf4 $16) 35. Rd5 h4 {[#]} (35... Rb4 $142 36. Rc3 Nf4) 36. Ne5 $1 Bxe5 37. Rdxe5 {[%mdl 4096] Endgame KRR-KRN} ({Much less strong is} 37. Rexe5 $6 Rxb3 38. Rd7 Kf6 $16) 37... Rd8 38. Rc3 Rd2 39. Re2 Rd1+ 40. Kf2 c5 41. Ke3 Rd6 (41... a5 {was worth a try.} 42. Rd2 Rg1) 42. Rd2 Rb6 43. Rd7 g5 44. Kf2 Kg6 45. Kg1 Kf6 46. Kh2 Kg6 47. Rcd3 a5 48. Ra7 c4 49. Rd2 cxb3 50. Rxa5 Rc6 51. Rad5 {Weighted Error Value: White=0.08 (flawless) /Black=0.25 (precise)} 1-0

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.25"]
[Round "9.4"]
[White "Bjerre, Jonas Buhl"]
[Black "Ganguly, Surya Shekhar"]
[Result "1-0"]
[ECO "D40"]
[WhiteElo "2586"]
[BlackElo "2627"]
[Annotator "TA"]
[PlyCount "121"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,121,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-14,77,77,78,85,75,75,84,87,83,90,64,66,75,42,47,36,22,27,16,12,10,8,13,0,31,3,28,26,42,25,67,64,312,294,313,318,307,0,921,910,29987,131,118,52,52,52,52,52,73,60,84,59,249,248,392,395,839,813,587,1926,1897,1775,1668,1845,1718,1651,3222,3143,2777,1243,29941,29944,29958,772,1164,0,29959,29959,29954,29960,29959,29962,29959,29961,29969,29972,29984,29985]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 Nc6 6. a3 dxc4 7. Bxc4 a6 8. O-O b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 9. Ba2 Bb7 10. Qe2 cxd4 {D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3.} 11. Rd1 {[%cal Re3d4]} b4 12. exd4 {[%cal Od4d5] Hoping for d5!} bxc3 {The position is equal.} 13. d5 $1 Nxd5 14. Rxd5 Qc7 15. Rd3 {[%cal Bd5d3,Bd3c3,Bc3c2,Bc2d2][%mdl 32]} Be7 16. Rxc3 {[#]} O-O $146 ({Predecessor:} 16... Bf6 17. Rc2 O-O 18. Be3 Rfd8 19. Rac1 Qd7 20. Bb6 Rdc8 21. Rd1 Qe8 22. Rcd2 Ne7 {½-½ (42) Manolache,M (2514)-David,A (2428) Mamaia 2021}) 17. Ng5 {[%cal Og5h7]} h6 {[#]} (17... Bf6 $11 {remains equal.} 18. Rc4 Qe5) 18. Nxf7 $1 $16 Rxf7 (18... Bf6 $2 19. Nxh6+ $1 {[%mdl 512]} Kh8 20. Rh3 $1 $18) 19. Qxe6 Raf8 {[#] ...Kh8 is the strong threat.} 20. Bxh6 $1 Bf6 21. Rc2 Kh7 22. Be3 {And now Rc5 would win.} Qd7 23. Qe4+ g6 24. Bxf7 {White is more active.} Rxf7 25. Rd2 {Inhibits Nd4.} Nd4 $1 26. Qf4 Qc6 $1 {[%csl Gb7][%cal Rc6g2]} 27. f3 g5 $1 28. Qg3 (28. Qg4 Nb3 29. Qf5+ Kh8 $17) 28... Nf5 {[%csl LRe3,LRg3]} 29. Qf2 Kg6 30. Rad1 Qc7 31. Rc2 Qb8 32. h3 $1 Be5 {This bishop pair is nice.} (32... Ba8 $11 {is more appropriate.}) 33. Ba7 $1 $14 (33. Rc5 Bd6 $11) 33... Bh2+ (33... Qe8 $14) 34. Kh1 $18 Qf4 35. Qb6+ Kg7 {[%cal Ob7f3]} 36. Qe6 $2 (36. Qd8 $1 $18 Bxf3 37. gxf3 Rxa7 38. Rxh2) 36... Bg3 $2 {[%mdl 8192]} (36... Bxf3 $11 37. Rd7 Ng3+ 38. Kxh2 Ne2+ 39. Kh1 Bxg2+ 40. Kxg2 Qg3+ 41. Kh1 Qf3+ 42. Kh2 Qg3+ 43. Kh1 Qf3+ 44. Kh2 Qg3+ 45. Kh1) 37. Rd7 Nd6 38. Bb8 $2 (38. Rcc7 {mates} Rxd7 39. Bd4+ $1 {[%mdl 512]} Kf8 40. Rxd7 Qf7 41. Rd8+ Ne8 42. Rxe8+ $1 {[%mdl 512]} Qxe8 43. Bc5+ Bd6 44. Bxd6+ Kg7 45. Be5+ Kh7 46. Qxe8) 38... Qa4 $16 {[#]} 39. Bxd6 $1 Rxd7 $14 40. Bxg3 $40 {[%mdl 128] White threatens Rc5 and mate. White attacks. The board is on fire.} Rd1+ 41. Kh2 Qxc2 42. Qe7+ Kg6 $1 {Threatens to win with ...Qb3. White now steadily converts the win.} 43. Qxb7 $16 {[%mdl 4096] Endgame KQR-KQB} Qb1 $2 (43... Qc1 $1 $14 44. Qe4+ (44. Qxa6+ Kh5 $16) 44... Kf7 45. Qf5+ Ke7 46. Qh7+ Ke6 47. Qe4+ Kf7 48. Qh7+ Ke6 49. Qg8+ Ke7 50. Qg7+ Ke6 51. Qg6+ Ke7 52. Qh7+ Ke6) 44. Qxa6+ $18 Kh5 (44... Kf7 $142 45. Qb7+ Kg6 46. Qc6+ Kh7 47. Qc7+ Kg6 48. Qb6+ (48. Be5 $2 {leads to mate.} Rh1+ 49. Kg3 Qe1+ 50. Kg4 Qh4#) 48... Kh7) 45. Be1 $1 {[%csl Gf3,Gh3][%cal Rg2g4]} (45. Be5 $2 {gets mated.} Rh1+ 46. Kg3 Qe1#) 45... Qxb2 $2 (45... Rxe1 $2 {is a self mate.} 46. g4+ Kh4 47. Qh6#) (45... Qg6 46. Qe2 Rd8 47. f4+ Kh6) 46. Qe6 {[%cal Oe1c3]} Qb8+ {[#]} 47. Kg1 $1 {[%csl Ge6,Gf3,Gh3][%cal Rg2g4]} Qa7+ {[#]} 48. Kf1 $1 {[%csl Ge6,Gf3,Gh3][%cal Rg2g4]} Rxe1+ 49. Qxe1 Qxa3 {KQ-KQ} 50. Qe5 {[%cal Oh3h4] Intending h4! and mate.} Qa6+ 51. Kg1 {White wants to mate with f4.} Kh6 52. Kh2 Qb6 53. Kg3 Qa6 54. Kg4 (54. h4 $142 gxh4+ 55. Kxh4 Kg6 56. f4 Kh7 57. Qf5+ Kh8 58. Kg5 Kg7 59. Qd7+ Kf8 60. f5) 54... Qc8+ 55. Kg3 (55. Qf5 $18 Qc4+ 56. Qe4 Qc8+ 57. Kg3) 55... Qa6 $1 56. h4 {White mates.} gxh4+ 57. Kxh4 Qb6 58. f4 {[%cal Bf3f4,Bf4f5][%mdl 32]} Kh7 59. f5 Qh6+ 60. Kg4 Qd2 61. Qe7+ {Weighted Error Value: White=0.31/Black=0.63} 1-0

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.28"]
[Round "11.2"]
[White "Bjerre, Jonas Buhl"]
[Black "Murzin, Volodar"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2586"]
[BlackElo "2519"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,95,27,31,12,13,18,23,30,35,37,39,37,45,40,50,46,39,40,87,33,56,43,79,38,40,41,46,38,47,46,35,44,56,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-25,0,0,20,20,193,0,0,0,24,0,0,0,0,0,0,-28,291,291,372,288,306,290,546,368,513,507,535,546,503,490,558,545,530,475]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Bg6 7. Be2 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} Nbd7 8. O-O Bd6 9. g3 {White has an edge.} Qe7 10. c5 $5 {[%mdl 4] Leaves trodden paths.} Bc7 11. b4 a6 12. a4 {[#]} O-O $146 ({Predecessor:} 12... e5 13. Bd2 O-O 14. Nxg6 hxg6 15. b5 exd4 16. exd4 axb5 17. axb5 Rxa1 18. Qxa1 Nxc5 19. dxc5 d4 20. Bf3 {½-½ (20) Malhotra,A (2171)-Vibbert,S (2313) Phoenix 2015}) 13. Nxg6 hxg6 14. f4 Rfb8 (14... Nh7 $14 {is more appropriate.}) 15. Ba3 (15. Bd3 $16) 15... Qd8 16. Qc2 b6 17. cxb6 {White is much more active. Black has bad knights.} (17. Rab1 $16) 17... Nxb6 $14 18. a5 Nc4 19. Bxc4 dxc4 20. Nd1 $1 Bd6 21. Qxc4 Qf8 {[%cal Rd6b4]} 22. Rb1 (22. Rf2 $14) 22... c5 $11 23. dxc5 Bxc5 24. Rb3 Ba7 25. Nf2 Qe8 26. Rfb1 Nd5 27. Bc1 (27. Qxa6 $2 Rb5 28. Rc1 Bxe3 $19) 27... Rb5 28. Bd2 Rc8 29. Qe2 e5 {And now ...exf4 would win.} 30. Qf3 exf4 31. gxf4 Rc2 32. Rd3 Qe6 33. Rd1 Kh7 $2 {[#]} (33... Nxb4 $2 34. Rd8+ Kh7 35. Qa8 $18) (33... Rc8 $1 $11) 34. Kh1 $2 (34. Ne4 $1 $18 {[%cal Re4g5] Threatens to win with Ng5+.} Nf6 35. Ng5+ Rxg5+ 36. fxg5) 34... Nf6 35. Bc3 Rh5 {[%cal Oc2f2]} (35... Nd5 $5 {[%cal Rd5c3]} 36. Be5 (36. Rxd5 Rxd5 37. Rxd5 Rxf2 $11) 36... Bxe3 $16) 36. Bxf6 gxf6 37. Rd6 Qa2 (37... Qxe3 38. Qxe3 Bxe3 39. Ng4 $18) 38. Rf1 Kg7 39. Rd7 ({Don't go for} 39. Rxa6 $2 {[#]} Qc4 $1 40. Kg2 Qxa6 $19) (39. Rd8 $5 {[%cal Rf3a8]} Rd2 40. Re8 $11) 39... Bxe3 {[%mdl 8192]} 40. Qxe3 $18 Qc4 {[%cal Rc4f1]} 41. Rfd1 {aiming for Qa7.} Rh4 42. Kg1 Re2 $2 {[#]} (42... Qxf4 43. Rxf7+ Kh6 44. Qxf4+ Rxf4) 43. R7d4 $1 {[%mdl 512] Qg3 is the strong threat.} Qb5 (43... Qc2 44. Qg3) 44. Qd3 {White is clearly winning.} Qe8 45. Re4 Rxe4 46. Qxe4 ({Less strong is} 46. Nxe4 Rxf4 47. Re1 Qe5 $16) 46... Qb8 47. Rd4 Qc7 48. Kg2 {Weighted Error Value: White=0.16 (very precise) /Black=0.38} 1-0

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.29"]
[Round "12.2"]
[White "Bjerre, Jonas Buhl"]
[Black "Zhu, Jiner"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2586"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,86,19,15,24,12,15,12,14,20,16,21,18,13,12,14,18,8,12,13,13,10,16,9,33,19,36,30,32,34,24,0,0,0,0,0,10,11,10,10,25,25,25,26,29,31,32,19,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. g3 cxd4 7. Nxd5 Qxd5 8. Qxd4 Qb5 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5.} 9. e4 Qb4+ 10. Bd2 Nc6 11. Qxb4 Bxb4 12. Rc1 Bxd2+ 13. Kxd2 Ke7 14. Bb5 Bd7 15. Rc5 f6 {[#]} 16. Rhc1 $146 {[%cal Rb5c6]} ({Predecessor:} 16. Bxc6 Bxc6 17. Nd4 Bd7 18. Rc7 Rab8 19. Rhc1 Rhc8 20. Ke3 Rxc7 21. Rxc7 e5 22. Ne2 {½-½ (34) Ruck,R (2530)-Lenic,L (2644) Mali Losinj 2019}) 16... e5 17. Ne1 {[%cal Bf3e1,Be1d3,Bd3c5][%mdl 32]} Rhd8 18. Ke3 Rac8 19. Nd3 a6 20. Ba4 b5 21. Bb3 Nd4 22. Bd5 Rxc5 23. Nxc5 Rc8 24. b4 Ne6 25. Bxe6 Bxe6 $11 {[%mdl 4096] Endgame KRB-KRN} 26. f4 exf4+ 27. gxf4 g6 28. h4 Rc7 29. Rc3 Rc6 30. Ra3 Bc8 {The position is equal.} 31. e5 h6 32. Ke4 fxe5 33. Kxe5 Rf6 34. Ke4 Rf5 35. Re3 Kf7 36. Kf3 a5 37. a3 axb4 38. axb4 g5 39. hxg5 hxg5 40. Nd3 gxf4 41. Nxf4 Bb7+ 42. Kg4 Bc8 43. Kf3 Bb7+ {Weighted Error Value: White=0.02 (flawless) /Black=0.03 (flawless)} 1/2-1/2

