[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.15"]
[Round "1.7"]
[White "Zhu, Jiner"]
[Black "Shuvalova, Polina"]
[Result "0-1"]
[ECO "C88"]
[WhiteElo "2478"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,104,28,12,16,10,19,22,13,16,25,0,8,8,10,8,14,0,-3,0,0,-17,-31,-7,-8,-28,-34,-53,-6,-18,0,0,0,-16,0,-10,0,0,0,0,0,0,0,-18,-22,-45,-47,-35,-38,-38,-9,-18,0,0,0,0,0,0,0,-28,-29,-154,-154,-797,-805,-708,-552,-731,-708,-636,-564,-1457,-687,-1457,-1488,-1154,-1370,-1384,-1353,-1371,-1397,-1360,-1361,-1026,-1033,-908,-848,-925,-655,-752,-608]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3 Bb7 9. d3 d5 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} 10. exd5 Nxd5 11. Nxe5 Nd4 {The position is equal. The old main line.} 12. Nd2 {has lost popularity (12.Nc3).} c5 {[#]} 13. Nf1 $146 ({Predecessor:} 13. Ndf3 Nxb3 14. axb3 f6 15. Ng4 Qd7 16. Bd2 Rae8 17. Re2 Bd6 18. Qf1 Rxe2 19. Qxe2 {0-1 (48) Jakubowski,K (2530)-Wojtaszek,R (2734) Poland 2017}) 13... Qc7 14. Bxd5 Bxd5 15. Bf4 {[%cal Oe5g6]} Bd6 $1 16. Bh2 Rae8 {[%cal Rd6e5]} 17. c3 Bxe5 {This bishop pair is nice.} 18. cxd4 Bxh2+ 19. Nxh2 cxd4 20. Rxe8 Rxe8 21. a3 Qe5 (21... Qb7 $15 22. Qg4 Qc6) 22. Nf1 $11 h5 23. Qd2 $1 {Inhibits Qg5.} Re6 24. f3 h4 25. Kf2 {Prevents Qe2+.} Qf5 26. Re1 Rc6 27. Kg1 Rg6 {[%csl LRf3,LRh3] Strongly threatening ...Bxf3.} 28. Kh2 Kh7 29. Re2 a5 {[%cal Ba6a5,Ba5b4,Bb4b3][%mdl 32]} 30. Re1 {[%cal Be2e1,Be1c1,Bc1c5,Bc5b5,Bb5b4][%mdl 32]} b4 31. axb4 axb4 32. Rc1 b3 {[%cal Od5f3] Hoping for ...Bxf3!} 33. Rc5 Ra6 34. Qf2 {[%csl LRd4,LRh4]} Qf4+ 35. Kg1 Rd6 36. Rb5 g6 {[%cal Bg7g6,Bg6g5][%mdl 32]} 37. Rb4 Be6 $1 38. Nd2 {[#]} (38. Qd2 $11 Qf6 39. Qc1) 38... g5 $1 $17 {Black is much more active.} 39. Ne4 $2 {Loses the game.} (39. Qe2 $17 Kg7 40. Qf2) 39... Rc6 $19 {[%cal Bd6c6,Bc6c1,Bc1c2][%mdl 32] Threatens to win with ...Rc1+. Black is clearly winning.} 40. Qxd4 Rc1+ 41. Kf2 Qh2 42. Nxg5+ Kg6 43. Qe4+ Bf5 {[%mdl 64] ( -> ...Qg1+). Skewer} 44. Qxh4 Rc2+ {[%mdl 64] Skewer, Double Attack} 45. Ke3 Qg1+ 46. Kf4 Qc1+ {[%mdl 64] Skewer, Double Attack} 47. Kg3 {[#]} Qe1+ $1 48. Kh2 Qxh4 49. Rxh4 Kxg5 50. Rb4 Rxb2 51. d4 Bd3 {aiming for ...Bf1.} 52. d5 Bf1 {Weighted Error Value: White=0.45/Black=0.09 (flawless)} 0-1

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.17"]
[Round "3.4"]
[White "Zhu, Jiner"]
[Black "Nguyen, Thai Dai Van"]
[Result "0-1"]
[ECO "C89"]
[WhiteElo "2478"]
[BlackElo "2609"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,128,0,0,0,0,6,7,-3,0,0,27,22,36,16,23,20,17,25,33,12,30,-91,-88,-96,-73,-81,-74,-125,-123,-117,-129,-115,-107,-115,-63,-60,-62,-114,-117,-114,-118,-307,-307,-307,-307,-291,-300,-300,-300,-300,-300,-300,-300,-300,-300,-300,-300,-267,-169,-204,-73,-73,-73,-73,-73,-73,-73,-73,-73,-73,-73,-73,-73,-108,-56,-116,-116,-116,-116,-360,-351,-5273,-5273,-5273,-5273,-5273,-5273,-5273,-5273,-2033,-592,-5273,-5273,-5273,-5273,-5273,-5266,-5266,-5259,-693,-354,-354,-354,-362,-362,-5233,-5193,-5149,-5089,-5089,-4904,-29979,-29980]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. d4 exd4 10. e5 {C89: Closed Ruy Lopez: Marshall Attack.} Ne4 11. cxd4 Bf5 12. Nc3 {The position is equal.} Nxc3 13. bxc3 h6 $5 {[%mdl 4] [#] A promising side line.} 14. Nd2 $146 ({Predecessor:} 14. Be3 Na5 15. Bc2 Qd7 16. Qe2 Bxc2 17. Qxc2 Qc6 18. Reb1 Nc4 19. Bc1 a5 20. a3 {½-½ (44) Cosgun,B (1166)-Tuncer,D (1607) Konya 2017}) 14... Na5 $1 15. Bc2 (15. Qf3 $5 {[%cal Rf3f5]} Nxb3 16. axb3 $11) 15... Qd7 16. Bxf5 Qxf5 17. Nf1 Nc4 18. f4 Qd7 19. g4 (19. Ne3 $11 {remains equal.}) 19... b4 $17 20. f5 bxc3 {...c5 is the strong threat.} 21. Qf3 Rfe8 {Black is more active.} 22. Qxc3 (22. Ng3 $142) 22... c5 $1 23. Bf4 cxd4 24. Qxd4 Rac8 {Threatens to win with ...Bc5.} 25. Qd3 Bg5 (25... Nb2 $17 26. Qb3 Qa4 $1 27. Qxa4 Nxa4) 26. Bxg5 $15 hxg5 27. Qg3 (27. Qd4 $15) 27... d4 $17 {White must now prevent ...d3.} 28. Rad1 Qd5 {[%cal Rc4e5] Inhibits Re4.} 29. Ne3 $2 Qxe5 $19 (29... Nxe3 $2 30. Qxe3 Rc2 31. Qe4 Qxa2 32. Ra1 $17) 30. Nxc4 Qxg3+ 31. hxg3 {Strongly threatening Rxe8+.} Rxe1+ 32. Rxe1 {And now Nd6 would win.} Rxc4 {[%mdl 4096] Endgame KR-KR} 33. Re8+ Kh7 34. Rd8 Ra4 $1 35. a3 d3 ({Not} 35... Rxa3 $2 36. Kf2 $19) 36. Rxd3 Rxg4 37. Kg2 Ra4 38. Kh3 g6 (38... Kh6 $19 {is more deadly. aiming for ...g6.} 39. g4 f6) 39. f6 $17 g4+ $1 40. Kh4 Kh6 {[%csl Gh6][%cal Rg6g5]} 41. Rd5 {[%cal Od5h5] Prevents g5+.} Rc4 ({Reject} 41... Rxa3 42. Rh5+ gxh5 $11) 42. a4 Rc6 $1 ({Much worse is} 42... Rxa4 43. Rh5+ gxh5 $11) 43. Kxg4 Rxf6 44. Rc5 Kg7 45. a5 Rd6 (45... Kh6 $1 $17 46. Rc7 Rf5) 46. Kf4 (46. Kh3 $1 $15) 46... Rd4+ $1 47. Kf3 Ra4 48. g4 $2 (48. Kg2 $17) 48... Kf6 $1 $19 49. g5+ $2 {[#]} (49. Kg3 Ke7 50. Rc7+ Ke8 51. Kf3) 49... Ke7 $1 50. Rc7+ Ke8 51. Ra7 Rxa5 52. Kg4 Ra1 53. Kg3 a5 {[%cal Ba6a5,Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 54. Kg4 a4 55. Kg3 a3 56. Kh2 a2 57. Ra3 Kd7 58. Ra6 Kc7 59. Ra3 Kd6 60. Ra5 Ke6 {Hoping for ...Rf1.} 61. Ra7 $2 (61. Kg2) 61... Rf1 62. Rxa2 {[#]} Kf5 $1 63. Rg2 Kf4 64. Rg3 {[#]} Rh1+ $3 {[%mdl 512] Weighted Error Value: White=0.46/Black=0.08 (flawless)} 0-1

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.20"]
[Round "5.6"]
[White "Zhu, Jiner"]
[Black "Van Foreest, Lucas"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2478"]
[BlackElo "2530"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,101,20,28,28,0,0,0,0,0,12,8,15,3,12,0,0,0,0,0,0,-11,0,-5,0,0,0,0,0,0,25,0,20,17,21,16,31,30,42,42,40,41,37,37,22,25,33,22,22,0,4,4,8,0,0,0,9,8,11,0,0,0,0,0,2,0,10,0,0,0,36,6,27,29,39,27,51,7,7,7,7,7,7,7,7,7,7,7,7,7,7,9]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O {[%cal Bh1f1,Bf1e1,Be1e5][%mdl 32]} Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nf5 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 8. c3 Nxe5 $1 9. Rxe5 d6 10. Re1 O-O 11. d4 d5 12. Bf4 Bd6 13. Bxd6 Nxd6 14. Nd2 Bf5 {[#]} 15. b3 $146 ({Predecessor:} 15. Qf3 Qg5 16. Qe3 Qxe3 17. Rxe3 Rfe8 18. Rae1 Rxe3 19. Rxe3 f6 20. f3 Kf7 21. Kf2 {0-1 (54) Pichot,A (2628)-Artemiev,V (2699) Riga 2021}) 15... c6 16. Qf3 Bg6 17. Qf4 Qd7 18. c4 dxc4 19. bxc4 Rad8 20. Nf3 Qf5 21. Qd2 c5 22. Nh4 Qc8 23. d5 b6 24. a4 Qg4 {[%csl LRc4,LRh4]} 25. Nxg6 hxg6 26. h3 Qh4 (26... Nxc4 $2 27. Qa2 (27. hxg4 Nxd2 28. Re7 a5 $17) 27... Qf4 28. Bxc4 $18) 27. g3 Qf6 (27... Nxc4 $2 28. Qc3 (28. gxh4 $2 {too greedy.} Nxd2 29. Re7 Rxd5 $19) 28... Qf6 29. Qxf6 gxf6 30. Bxc4 $18) 28. a5 Rfe8 29. axb6 axb6 30. Rab1 Rxe1 31. Qxe1 Nf5 32. Qe4 Nd4 {[#] White must now prevent ...Nf3+.} 33. Bg2 {Inhibits Nf3+.} Rb8 34. h4 Rd8 35. f4 Qd6 36. Qe5 Qd7 37. Rxb6 Qg4 38. Kh2 {[%cal Bg1h2,Bh2g2,Bg2h3][%mdl 32] aiming for Qg5.} Kh7 39. Rb2 Ra8 $1 40. Qe3 Ra6 41. Rd2 Qf5 42. Be4 Qg4 43. Kg2 Rb6 44. Bf3 (44. Bc2 $14 {feels stronger.}) 44... Nf5 $11 {The position is equal.} 45. Bxg4 Nxe3+ {[%mdl 4096] Endgame KRB-KRN} 46. Kh3 {[#] Strongly threatening d6.} Nxc4 47. Rc2 Nd6 48. Rxc5 {Threatens to win with Rc6.} Ne4 49. Rc2 Rb3 {Inhibits Bf3.} 50. Rg2 Rd3 51. Be2 {Weighted Error Value: White=0.06 (flawless) /Black=0.05 (flawless)} 1/2-1/2

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.22"]
[Round "7.7"]
[White "Zhu, Jiner"]
[Black "Dardha, Daniel"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "2478"]
[BlackElo "2533"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,44,31,25,50,18,21,9,6,0,0,12,0,-16,-12,-81,-62,-69,-68,-103,-102,-387,-374,-489,-480,-739,-733,-1604,-1585]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 $1 {8...Bd7 is better than 8...h6.} 9. f3 Nxd4 10. Qxd4 Be7 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7, lines without 9 f4 Be7.} 11. Qd2 b5 12. h4 Qc7 {The position is equal.} 13. g4 b4 14. Ne2 a5 {[%cal Ba6a5,Ba5a4,Ba4a3,Ba3b2][%mdl 32] [#]} 15. Nd4 $146 ({Predecessor:} 15. Kb1 h5 16. gxh5 Nxh5 17. Rg1 Nf6 18. Ng3 a4 19. f4 b3 20. cxb3 axb3 21. a3 {½-½ (47) Bilguun,S (2497)-Docena,J (2426) Makati 2018}) 15... O-O 16. Nb5 (16. Bd3 $11 {keeps the balance.}) 16... Bxb5 $17 17. Bxb5 a4 $1 18. Kb1 ({Don't blunder} 18. Qxb4 $2 Rfb8 19. Bf4 e5 $19) 18... a3 19. Be3 $2 {[%mdl 8192]} (19. Bxf6 $17 Bxf6 20. Qxb4) 19... axb2 $19 {[#] Threatens to win with ...Rfb8.} 20. Qxb4 d5 {Inhibits Qc4. Black is clearly winning.} 21. Qd2 ({Don't play} 21. Qxb2 Ba3 22. Qb3 Rfb8 $19) (21. Bf4 $142 Qxf4 22. Qxe7 Qxf3 23. Rhf1 Qxe4 24. Rfe1 Qxg4 25. Rg1 Qxh4 26. Rdf1) 21... Rfb8 22. Qe2 {[#]} Rxa2 $3 {[%mdl 512] White got outplayed after the opening.  Weighted Error Value: White=1.15/Black=0.01 (flawless)} 0-1

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.25"]
[Round "9.1"]
[White "Zhu, Jiner"]
[Black "Erigaisi Arjun"]
[Result "0-1"]
[ECO "C70"]
[WhiteElo "2478"]
[BlackElo "2629"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,104,31,58,29,33,42,26,34,39,33,28,31,47,40,38,-7,0,-7,0,0,0,-8,0,-6,0,0,-8,-45,-47,-60,-53,-81,-81,-101,-95,-95,-90,-97,-89,-99,-83,-102,-88,-114,-100,-93,-104,-99,-108,-112,-120,-116,-108,-139,-132,-126,-126,-115,-122,-166,-159,-163,-173,-166,-168,-183,-33,-29,0,0,0,-422,-404,-1196,-1258,-1259,-1226,-1029,-981,-1516,-1461,-29973,-29974,-29976,-29978,-29978,-29979,-29979,-29980,-29980,-29981,-29981,-29982,-29985,-29986,-29986,-29983]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. c3 Nge7 6. d4 {C70: Ruy Lopez: 3...a6 4 Ba4, Norwegian and Delayed Schliemann.} exd4 7. cxd4 Bb4+ 8. Bd2 {White has an edge.} Bxd2+ 9. Qxd2 d5 10. exd5 Qxd5 11. Nc3 Qe6+ 12. Kf1 (12. Qe3 $14 {feels stronger.}) 12... Qc4+ $11 13. Kg1 $1 {[#]} Be6 $146 {Inhibits d5.} ({Predecessor:} 13... O-O 14. d5 Nb8 15. Re1 Ng6 16. h4 h5 17. Re4 Qc5 18. Qg5 b5 19. Bb3 Nd7 {0-1 (48) Bernadskiy,V (2600)-Petrov,N (2570) Novi Sad 2021}) 14. Ne5 Qb4 15. a3 Qb6 16. Bxc6+ Nxc6 17. Nxc6 Qxc6 18. h4 O-O-O 19. h5 Bd5 20. f3 Qf6 21. Qf2 Bb3 22. Rh4 Rhe8 23. Rg4 Qh6 {Black is more active.} 24. Re1 {[%cal Od4d5]} f5 25. Rh4 Bf7 {White must now prevent ...Rxe1+.} 26. Kh2 Bxh5 27. Rxe8 Rxe8 28. Qg3 Qg6 29. Qf4 Qf7 {Prevents Nd5.} 30. d5 Bg6 31. d6 Rd8 {[%cal Be8d8,Bd8d2,Bd2b2][%mdl 32]} 32. dxc7 Qxc7 33. Qxc7+ Kxc7 $17 {[%mdl 4096] Endgame KRB-KRN} 34. Ne2 (34. a4 $17 {was worth a try.}) 34... Rd2 $19 35. Nf4 Rxb2 36. Nxg6 hxg6 {KR-KR} 37. Rh7 Kb6 ({Black should play} 37... Kc8 $19 {Hoping for ...Rb3.} 38. Rxg7 Rb3 39. Rg8+ Kc7 40. Rg7+ Kb8) 38. Rxg7 $15 Ka5 39. Rxg6 Ka4 40. Rg5 $2 {[%mdl 8192] [#]} (40. Rf6 $11) 40... f4 $1 $19 41. Rf5 (41. Kh3 $142 Kxa3 42. Ra5+ Kb3 43. Ra1) 41... Kxa3 42. Rxf4 b5 {And now ...a5 would win.} 43. Kh3 b4 44. g4 b3 {Threatens to win with ...Rc2.} 45. Rf5 Ra2 {Black mates.} 46. g5 b2 47. Rf6 {[#]} a5 $1 ({And not} 47... b1=Q 48. Rxa6+ Kb3 49. Rb6+ Kc2 50. Rxb1 Kxb1 51. f4 $11) 48. Rb6 Ra1 49. f4 b1=Q 50. Rxb1 Rxb1 51. g6 Rg1 52. f5 Rg5 {Weighted Error Value: White=0.63/Black=0.10 (very precise)} 0-1

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.28"]
[Round "11.4"]
[White "Zhu, Jiner"]
[Black "Jumabayev, Rinat"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2478"]
[BlackElo "2631"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,115,28,37,36,20,24,10,13,39,20,31,1,30,24,60,38,29,39,34,47,40,33,31,37,50,47,69,33,28,-66,-54,-155,-156,-146,-144,-144,-87,-98,-91,-88,-47,-92,-73,-100,-31,-31,-33,-42,-4,-7,-6,-7,0,0,86,84,79,79,122,122,123,124,125,125,125,125,125,24,24,24,24,24,24,24,24,24,24,16,16,16,16,16,28,9,9,9,9,9,9,10,10,10,10,10,10,12,16,12,12,12,12,12]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 h5 9. Nd5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Bxd5 10. exd5 g6 11. Qd2 Bg7 12. O-O-O Nbd7 13. Be2 Rc8 (13... b5 $5 {[%cal Rd7b6]}) 14. Kb1 Nb6 15. Na5 {[#]} Nbxd5 $146 ({Predecessor:} 15... Qc7 16. c4 Nbd7 17. h4 e4 18. Bd4 O-O 19. Rc1 Rfe8 20. Rhe1 Ne5 21. Qb4 exf3 22. gxf3 {1-0 (48) Robson,R (2670)-Bok,B (2640) chess24.com INT 2020}) 16. Nxb7 Qc7 {[#]} 17. Bc4 $1 {This bishop pair is nice.} Qxb7 18. Bxd5 Nxd5 19. Qxd5 Rc6 20. Rd3 Qc7 21. Bd2 {White is more active.} O-O $1 {[%cal Oe5e4]} 22. Bb4 (22. Ba5 $11 Qd7 23. Rc3 Rxc3 24. Bxc3) 22... e4 $1 $15 23. fxe4 (23. Rd2 Bxb2 24. Kxb2 Rb8 25. Qxe4 d5 26. Qxd5 (26. Rxd5 $2 Rc4 $19) 26... Rxb4+ 27. Ka1 (27. Kc1 $2 Rcb6 $19) 27... Rxc2 28. Rxc2 Qxc2 $19) (23. Rb3 $15) 23... Rxc2 $17 24. Bc3 Rxc3 25. bxc3 Rb8+ (25... Bxc3 $142 {White must now prevent ...Rb8+.} 26. Qb3 Rb8 27. Rxc3 Rxb3+ 28. Rxb3 Qe7) 26. Kc2 {[#]} Rb5 $1 {[%mdl 1024] Black has strong compensation.} ({Reject} 26... Qb6 $6 27. Qb3 Qf2+ 28. Rd2 $15) 27. Qa8+ (27. Qxd6 $2 Qc4 28. Qxa6 {[#]} Rb2+ $3 {[%mdl 512]} 29. Kxb2 Qxa6 $19) 27... Kh7 28. Rb1 $1 ({Don't blunder} 28. Qxa6 $2 Ra5 29. Qxd6 Rxa2+ 30. Kb3 Qa5 $19) 28... Ra5 {[%cal Od6d5]} 29. Rb2 Ra3 ({Black should play} 29... Qc4 $17 {...Ra3 is the strong threat.} 30. Qb7 Rg5) 30. e5 $1 $15 Bxe5 {[%cal Ra3c3]} 31. Qf3 $1 Qc4 32. Kb1 Kg7 {[%cal Re5c3]} (32... Bxc3 $2 33. Rc2 Qb4+ 34. Kc1 $18) 33. Qd5 Qxd5 34. Rxd5 Bxh2 (34... Rxc3 $11 {remains equal.} 35. Rb3 Rc4) 35. Rb3 $16 Rxb3+ 36. axb3 {[%mdl 4096] Endgame KR-KB} Kf6 (36... h4 $142) 37. Kc2 h4 38. Kd3 g5 {[%cal Bg6g5,Bg5g4,Bg4h3,Bh3h2][%mdl 32]} 39. Ra5 g4 40. Rxa6 Ke5 41. b4 (41. Ra7 $16 Ke6 42. c4) 41... Bg1 $11 42. Ke2 h3 $1 43. gxh3 gxh3 {aiming for ...h2.} 44. Kf3 h2 $1 45. Kg2 f5 46. b5 f4 47. c4 f3+ 48. Kh1 Ke6 49. b6 {And now b7 would win.} f2 {The position is equal.} 50. Ra1 Kd7 51. Rb1 {Threatens to win with b7.} Kc8 52. b7+ Kb8 53. Kg2 f1=Q+ 54. Rxf1 {Hoping for Rb1. The board is on fire.} (54. Kxf1 {is a self mate.} h1=Q 55. Rb3 Bc5+ 56. Ke2 Qe4+ 57. Kd2 Qxc4 58. Rd3 Bb4+ 59. Ke3 d5 60. Rd1 Qe4+ 61. Kf2 Qc2+ 62. Kf3 Qxd1+ 63. Kf4 Kxb7 64. Kf5 Qf3+ 65. Kg5 Bd2+ 66. Kg6 Qf8 67. Kh7 Qf7+ 68. Kh8 Bc3#) 54... Kxb7 55. Rf5 Kc6 56. Rh5 Bd4 57. Kxh2 {Black should prevent Rd5.} Be5+ 58. Kg2 {Black had all chances to win.  Weighted Error Value: White=0.12 (very precise) /Black=0.10 (very precise)} 1/2-1/2

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.30"]
[Round "13.7"]
[White "Zhu, Jiner"]
[Black "Murzin, Volodar"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2478"]
[BlackElo "2519"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,118,17,4,39,32,37,29,37,7,12,-32,-25,-27,-32,-41,-43,-62,-43,-58,-36,-36,-22,-36,-36,-36,-36,-61,-29,-37,-36,-36,-36,-36,0,-36,-36,-36,-36,-47,-48,-61,-57,-79,-80,-75,-86,-130,-109,-164,-164,-156,-91,-145,-134,-140,-141,-160,-160,-142,-83,-84,-75,-69,-75,-175,-106,-216,-216,-356,-391,-418,-418,-418,-418,-396,-396,-346,-199,-908,-895,-877,-846,-696,-808,-614,-542,-1107,-1020,-3210,-2866,-2541,-2091,-2032,-1836,-1669,-1829,-1201,-811,-6079,-6679,-5814,-5518]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O Nc6 {[%cal Bb8c6,Bc6a5,Ba5b3][%mdl 32]} 10. Qe2 h6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 11. Rfd1 Be6 12. Bb3 Qe8 {[#] White has an edge.} 13. h3 $146 ({Predecessor:} 13. Nh4 Kh7 14. Nf5 Nxe4 15. Nxg7 Kxg7 16. Nxe4 d5 17. Qh5 Rh8 18. Bxd5 {1-0 (18) Klein,F (2207)-Mull,T Maastricht 2007}) 13... Na5 14. Nd5 (14. Nh4 $11 {is more appropriate.}) 14... Nxb3 $15 15. Nxf6+ Bxf6 16. axb3 Qc6 17. Qd3 b5 18. Rac1 Rfd8 19. c4 {Prevents d5.} Qb7 20. Rc2 a5 21. Nd2 (21. cxb5 d5 22. exd5 Rxd5 $17) 21... a4 22. bxa4 bxa4 23. Ra1 Qc6 24. Ra3 Rdb8 {[%cal Bd8b8,Bb8b4,Bb4a4,Ba4a1][%mdl 32]} 25. b3 Rb4 26. bxa4 Raxa4 27. Rxa4 Rxa4 ({Much weaker is} 27... Qxa4 28. Qxd6 $1 Bxc4 29. Rxc4 (29. Nxc4 Rb1+ 30. Rc1 Rxc1+ 31. Bxc1 Qxc4 $11) 29... Rxc4 30. Nxc4 Qxc4 31. Qd7 $11) 28. Kh2 Bd8 29. f3 Bb6 30. Qb3 Bxe3 31. Qxe3 Ra1 (31... Bxc4 $2 32. Qc3 $18) 32. c5 ({White should play} 32. Qc3 Qa4 33. Rc1 Rxc1 34. Qxc1) 32... Qa4 $1 $17 33. Qc3 (33. Qd3 $17) 33... Ra3 $19 34. Qb2 Kh7 (34... Bb3 $2 35. c6 $1 {[%mdl 512]} Be6 36. c7 $18) (34... dxc5 $142 $1 35. Nc4 Rb3) 35. Rc1 ({Wrong is} 35. cxd6 $2 Ra2 36. Qxa2 Bxa2 $19) (35. Nc4 $142 Bxc4 36. Rxc4 Qxc4 37. Qxa3 Qxc5 38. Qb3) 35... Ra2 $17 36. Qc3 dxc5 {Hoping for ...Qd4.} 37. Nf1 c4 {Black is much more active.} 38. Qxe5 Qb3 {Inhibits Ne3.} ({Better is} 38... Qa7 {Strongly threatening ...Qf2.} 39. Ng3 Qf2) 39. Qc3 Re2 40. Ng3 Qb8 41. Rf1 (41. Ra1 $17 {might work better.}) 41... Qf4 $19 42. Qc1 (42. Rd1 $17) 42... Rd2 $40 {[%mdl 128] White is in trouble.} 43. Re1 {[#]} (43. e5 $142) 43... g5 $1 {[%cal Oe6h3]} 44. Kg1 {[#]} Bxh3 $1 {[%mdl 512]} 45. Re2 Rxe2 46. Nxe2 Qxc1+ 47. Nxc1 {[%mdl 4096] Endgame KB-KN} Be6 (47... Bd7 $142 {And now ...h5 would win.} 48. Ne2 Kg6) 48. Ne2 $2 (48. g4) 48... h5 {[%cal Bh6h5,Bh5h4][%mdl 32] Black is clearly winning.} 49. Kf2 Kg6 50. Ke3 h4 51. Kd4 g4 52. Ke3 gxf3 53. Kxf3 Kg5 {( -> ...Bg4+)} 54. Nc3 Bc8 {aiming for ...Bd7.} 55. Nb5 Bg4+ 56. Ke3 Bd7 57. Nc3 Kg4 {White must now prevent ...Kg3.} 58. Kf2 Bc6 59. Nd1 Kf4 {Weighted Error Value: White=0.51/Black=0.19 (very precise)} 0-1

