[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.1"]
[White "Zhu, Jiner"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "B85"]
[WhiteElo "2459"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,52,-13,-16,-9,-63,-35,-72,-77,-83,-77,-70,-62,-72,-71,-72,-68,-86,-77,-84,-99,-221,-212,-233,-245,-284,-278,-274,-268,-251,-161,-966,-964]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Be2 Be7 8. O-O O-O 9. f4 Qc7 10. Kh1 b5 11. a3 Bb7 12. Bf3 Nbd7 {B85: Sicilian Scheveningen: 6 Be2 a6, lines with early Be3.} 13. Re1 (13. Qe1 $11) 13... Rac8 {[#]} 14. Qd2 $146 ({Predecessor:} 14. Bf2 Rfe8 15. Bg3 e5 16. fxe5 dxe5 17. Nd5 Nxd5 18. exd5 Bd6 19. Nf5 g6 20. Nh6+ {1-0 (37) Massoni,M (2373)-Burg,T (2479) La Massana 2013}) 14... Nb6 {Black is better.} 15. Qf2 Nc4 16. Bc1 Rfd8 17. Nd1 d5 {[%cal Rd5e4]} 18. e5 Ne4 19. Bxe4 dxe4 20. c3 Bc5 $36 {[%mdl 2048] Keeping White busy.} 21. b3 {[#]} (21. Be3 $17 {is a better defense.}) 21... Na5 $1 $19 {[%cal Ra5b3]} 22. Be3 Bxd4 23. Bxd4 Nxb3 24. Bb6 {[#]} e3 $1 {[%mdl 512]} 25. Qxe3 Qc6 {[%csl Gb7][%cal Rc6g2]} 26. Qf2 (26. Ra2 Rd7 27. Rc2) 26... Rd2 {Black took control after the opening.  Weighted Error Value: White=0.58/Black=0.11} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.2"]
[White "Praggnanandhaa R"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2608"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,0,0,11,14,-12,11,-5,-18,-7,3,1,56,52,54,-20,0,0,13,22,35,35,127,117,110,81,94,80,93,0,0,0,0,-22,0,0,0,-19,28,-53,52,0,0,-134,-142,-131,-139,-139,-146,-129,-142,-185,-150,-144,138,149,148,62,59,5,8,-13,-2,-16,0,-243,132,0,119,120,109,61,230,229,316,310,285,236,230,153,294,192,29979,29980,29968,1794,1752,1688,29988,11,29989,29988,29989,29983,29990]} 1. d4 Nf6 2. Bf4 e6 3. e3 b6 4. Qf3 Nc6 5. Nc3 Bb7 6. O-O-O {A45: Trompowsky Attack.} a6 7. e4 {[#]} b5 $146 ({Predecessor:} 7... d5 8. a3 Qd7 9. exd5 exd5 10. g4 Nd8 11. Bd3 Ne6 12. Nge2 O-O-O 13. Be5 Ne8 {½-½ (41) Le Goff,R (2303)-Vezzani,S (2149) Trieste 2019}) 8. d5 {The position is equal.} Ne7 9. a3 Ng6 10. Bg3 b4 (10... e5 $11) 11. axb4 $14 Bxb4 12. Bc4 (12. h4 $14) 12... O-O 13. Nge2 Qe7 14. h4 {h5 is the strong threat.} (14. Bxc7 $2 d6 $19) 14... h5 15. e5 (15. Bxc7 $2 d6 $19) 15... Ng4 {[#]} (15... Nxd5 $14 16. Nxd5 exd5) 16. d6 $1 $16 {[%mdl 512]} cxd6 17. Qxb7 d5 18. Nxd5 ({And not} 18. Bxa6 Bxc3 19. bxc3 (19. Nxc3 $2 Rfb8 $19) 19... Qa3+ 20. Kd2 Rxa6 $17) 18... exd5 19. Qxd5 (19. Rxd5 $16 Rab8 20. Qxd7 (20. Qxa6 $2 Ra8 $19) 20... Qxd7 21. Rxd7 N6xe5 22. Rd4) 19... N6xe5 $11 20. Bb3 a5 {Strongly threatening ...a4.} 21. Ba4 Rac8 22. Nd4 Rc5 23. Qb3 {Threatens to win with f3.} Qf6 24. f3 (24. Kb1 $1 $11) 24... Nh6 ({Black should play} 24... Qh6+ $15 25. Kb1 Ne3 {[%mdl 64] Double Attack}) 25. Kb1 (25. c3 $14) 25... Nc4 26. Rd3 (26. Nb5 $11) 26... Nd2+ $17 27. Rxd2 Bxd2 28. Qd3 Bf4 29. Bf2 Rb8 30. Rd1 Be5 (30... Qb6 31. Nb3 $14) 31. c3 Qb6 $2 {[%mdl 8192]} (31... Rc7 $17 {stays on course.} 32. g3 g6) 32. Nb3 $1 $16 {[%mdl 64] Pin} d6 {Threatening ...Rxc3!} 33. Bxc5 (33. Rd2 $16) 33... dxc5 $14 34. Qc4 ({White should try} 34. Qe2 $14 Bf6 35. Qe4) 34... Qg6+ $11 35. Ka2 Qxg2 36. Qxc5 Bf6 37. Qxh5 $2 (37. Nd2 $11 {and White stays safe.}) 37... Qc2 $2 (37... Bxc3 $1 $19 {[%csl Gc3][%cal Rg2b2]} 38. Rb1 Qc2) 38. Rc1 (38. Rd2 $16 Qf5 39. Qxf5 Nxf5 40. h5 (40. Nxa5 Nxh4 41. Bc6 Ng6 $16)) 38... Qf5 (38... Qd3 $11) 39. Qxf5 $16 Nxf5 40. Nc5 Nd6 $2 (40... Bxh4 $14 41. Rd1 Rc8) 41. Nd7 $18 Rb7 42. Nxf6+ gxf6 {[%mdl 4096] Endgame KRB-KRN} 43. Rg1+ Kf8 44. Bc2 {And now h5 would win.} Ke7 (44... Rb5 $16 45. Rg4 Rh5) 45. Be4 f5 $2 (45... Rb5 $18 46. Bc2 Rh5) 46. Bxb7 Kf6 {[#]} 47. Re1 $1 Nc4 48. Rd1 Nxb2 49. Rd3 $2 Ke5 $2 {[%mdl 8192]} 50. Rd4 Nd3 51. f4+ Kf6 {[%mdl 32768] White used his chance.  Weighted Error Value: White=0.53/Black=0.89. Sensor Board Error (Ke4/e5)?} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.3"]
[White "Carlsen, Magnus"]
[Black "Abdumalik, Zhansaya"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2847"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,91,25,30,22,31,18,11,9,11,0,0,0,0,0,31,20,23,21,41,1,109,110,114,104,88,74,68,84,67,17,64,66,64,65,58,58,55,21,25,0,168,164,174,172,177,175,164,159,160,110,261,247,395,340,920,899,881,881,868,851,856,858,835,775,29973,1279,29974,29975,29941,10855,29979,29980,29980,29981,29979,29979,29978,29979]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. a4 Bb7 8. O-O d6 9. Bd2 {C84: Closed Ruy Lopez: Unusual White 6th moves.} O-O 10. Nc3 Na5 11. Ba2 {The position is equal.} b4 12. Ne2 c5 13. Ng3 Bc8 14. c3 {[#]} Nc6 $146 ({Predecessor:} 14... bxc3 15. bxc3 Qc7 16. d4 c4 17. Rb1 Bd7 18. Qc2 Rfc8 19. h3 g6 20. Bh6 Be8 {½-½ (87) Danailov,S (2462)-Onischuk,A (2637) Wijk aan Zee 2000}) 15. cxb4 Nxb4 16. Bxb4 cxb4 17. Rc1 Be6 (17... g6 $11 {remains equal.}) 18. Bxe6 $16 fxe6 19. Qb3 {aiming for Ng5.} Qd7 20. d4 exd4 21. Nxd4 d5 22. Nc6 a5 23. e5 $36 {[%mdl 2048] White has the initiative.} Ng4 24. h3 Nh6 25. Ne2 Nf5 26. Nxe7+ Qxe7 27. Rc6 Nh4 $2 {[#]} (27... Rac8 $11 {and Black stays safe.} 28. Rxc8 Rxc8) 28. Nd4 $1 $18 {[%cal Rd4e6]} Qg5 {[%csl Gh4][%cal Rg5g2]} 29. Qg3 Qxg3 30. fxg3 Rxf1+ 31. Kxf1 Nf5 32. Nxf5 exf5 $16 {[%mdl 4096] Endgame [#] KR-KR. This move loses the game for Black.} (32... Rf8 $16) 33. Ke2 $1 $18 Re8 (33... Kf7 {was necessary.} 34. Kd3 d4 35. Rc7+ (35. Kxd4 Rd8+ 36. Rd6 Rc8 $16) 35... Ke6 36. Rxg7 Kxe5 37. Rxh7 Rg8) 34. e6 g6 $2 (34... Kf8 35. Ke3 Ke7) 35. Kd3 Kg7 36. Kd4 Kf6 37. Kxd5 Rd8+ 38. Rd6 Rc8 39. Rd7 {Threatens to win with Rf7+.} Rc1 40. Rf7+ Kg5 41. e7 Re1 42. Kd6 Rd1+ 43. Kc7 {White mates.} Rc1+ 44. Kd7 Rd1+ 45. Ke8 h5 46. Kf8 {Weighted Error Value: White=0.07/Black=0.84} 1-0

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.4"]
[White "Carlsen, Magnus"]
[Black "Mendonca, Leon Luke"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "2847"]
[BlackElo "2549"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,123,21,21,22,44,29,59,53,66,-2,56,16,25,26,21,0,33,4,4,0,0,-19,18,10,69,25,33,18,110,29,53,0,0,0,0,-14,40,34,125,126,167,149,196,133,164,164,150,157,166,172,162,79,158,139,155,95,265,172,214,189,210,186,187,187,216,193,202,203,203,210,216,216,216,192,202,202,202,202,219,179,179,179,179,147,29977,29978,29978,29979,29981,29982,29982,29981,29981,29982,29983,29984,29992,29987,29987,29988,29988,29989,29989,29989,29989,29990,29991,29992,29992,29993,29994,29995,29995,29996,29996,29995]} 1. d4 Nf6 2. c4 c6 3. Bf4 Qb6 4. Qd2 Ne4 5. Qc2 d5 ({Reject} 5... Qxd4 $6 6. e3 $16) 6. f3 {A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6).} Qa5+ 7. Nd2 Nxd2 8. Bxd2 {White is slightly better.} Qd8 {[#]} 9. O-O-O $146 (9. e3 $14) ({Predecessor:} 9. e3 g6 10. Bd3 Bg7 11. Ne2 dxc4 12. Bxc4 Nd7 13. Bb3 a5 14. a3 e5 15. O-O {0-1 (55) Chiburdanidze,M (2502)-Stefanova,A (2490) Elista 2004}) 9... Nd7 (9... dxc4 $11 10. Qxc4 e5) 10. cxd5 cxd5 11. e4 Nb6 12. Bd3 Be6 13. Ne2 Rc8 14. Nc3 g6 15. e5 Bg7 16. Kb1 h5 (16... O-O $11) 17. f4 Bg4 18. Rc1 e6 (18... Nc4 $11) 19. Bb5+ (19. b3 $16) 19... Kf8 $11 20. Qb3 (20. Bd3 $14) 20... Bf5+ 21. Ka1 Kg8 22. Ne2 Kh7 (22... a6 $11 23. Bd3 Bxd3 24. Qxd3 Nc4) 23. Ng3 $14 Qe7 (23... Be4 $14) 24. Nxf5 $16 gxf5 25. Qf3 Qh4 26. g3 ({White should play} 26. Rxc8 $18 Rxc8 27. h3) 26... Qg4 27. Qf2 Rxc1+ 28. Rxc1 Rc8 29. Rxc8 Nxc8 {[#]} 30. Be2 (30. Qf1 $1 $18) 30... Qg6 (30... Qh3 $142) 31. Bb4 $36 {[%mdl 2048] Black is under strong pressure.} Nb6 32. Qf3 (32. h4 $142) 32... Kh6 $2 (32... h4 $16) 33. Be7 Kh7 34. Qxh5+ Kg8 35. Qxg6 fxg6 $18 {[%mdl 4096] Endgame KBB-KBN} 36. b3 Kf7 37. Bb4 Bf8 38. Bxf8 Kxf8 {KB-KN} 39. Kb2 Nd7 40. Kc3 Nb8 41. Kb4 Ke7 42. Bb5 a6 43. Be2 b6 44. h4 Nc6+ 45. Kc3 a5 46. Bb5 Nb4 {[%mdl 8192] [#] Loses the game.} (46... Na7 $16 47. Bf1 Nc6) 47. a3 {White mates.} Na2+ 48. Kb2 Kf8 49. Kxa2 {KB-KP} Kf7 50. Be2 Kg7 51. b4 Kf7 52. bxa5 Kf8 53. Kb3 bxa5 54. Ka4 Kf7 55. Kxa5 Ke7 56. Kb6 Ke8 57. a4 Kd8 58. a5 Kd7 59. a6 Ke7 60. a7 Kf7 61. a8=Q Kg7 62. Qb7+ {Weighted Error Value: White=0.21/Black=0.34} 1-0

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.5"]
[White "Gukesh D"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "2578"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,64,44,44,47,57,37,0,6,0,7,0,9,0,0,0,6,0,0,0,0,0,0,0,0,-4,0,-81,-78,-107,-107,-118,-120,-111,-118,-116,-118,-116,-106,-167,-175,-253,-246,-337,-330,-378,-273,-923,-904,-3264,-1047]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nf3 Bg7 7. Nc3 O-O 8. g3 {is the new trend.} d6 9. Bg2 Bf5 {A58: Benko/Volga Gambit: Lines with 5 bxa6.} 10. Nd2 Nxa6 11. e4 Bg4 {The position is equal.} 12. f3 Bc8 {[#]} 13. a3 $146 ({Predecessor:} 13. Nc4 Nd7 14. O-O Nb4 15. Re1 Ba6 16. Bf1 Bxc4 17. Bxc4 Ne5 18. Be2 c4 19. Rf1 {½-½ (37) Schultz,A (2179)-Ivanov,M (2442) Leipzig 2003}) 13... Nb4 {Strongly threatening ...Nd3+.} 14. Nb3 Na6 15. O-O Nd7 16. Be3 Qb6 {Hoping for ...Rb8.} 17. Rb1 Nc7 18. Nd2 Ba6 19. Rf2 $1 Rfb8 20. Bf1 Bxf1 21. Kxf1 (21. Qxf1 $11 {keeps the balance.} Bxc3 22. bxc3) 21... Qa6+ $17 22. Qe2 Bxc3 23. bxc3 Qxa3 24. Rxb8+ Rxb8 25. c4 Ne5 {Threatens to win with ...Nd3.} 26. Kg2 Rb2 27. f4 {[#]} (27. Bf4 $17) 27... Nd3 $1 $19 {[%cal Rd3f2]} 28. Rf3 (28. Rf1 $142) 28... Qc3 29. Kh3 {[#]} Qxc4 $3 {[%mdl 512]} 30. Qf1 (30. Nxc4 Rxe2) 30... Qc2 {...f5 is the strong threat.} 31. e5 $2 (31. f5 Ne5 32. Rf2) 31... Nxd5 32. f5 Nxe5 {Weighted Error Value: White=0.78/Black=0.06} (32... Nxe3 $142 33. Qe2 Nxe5 34. Rxe3 Qxf5+ 35. Kg2 Qe6) 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.6"]
[White "Lei, Tingjie"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "A32"]
[WhiteElo "2505"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,73,17,30,31,27,22,38,37,21,35,47,49,44,-2,33,20,24,23,39,11,38,7,19,15,6,0,30,30,33,33,33,32,34,12,18,7,14,-16,165,165,170,45,42,47,217,125,238,241,266,239,241,236,237,236,232,228,233,-29995,170,-29995,-29996,-29996,-29997,-29999]} 1. d4 {Besenthal,K} Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e6 5. g3 Bb4+ 6. Bd2 Bc5 7. Nb3 {A32: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6.} Be7 8. Bg2 Nc6 9. Nc3 {White is slightly better.} b6 10. O-O Bb7 11. Bf4 O-O 12. Nb5 Ne8 13. Rc1 d6 14. Qd2 a6 {[#]} 15. N5d4 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 15. Nc3 Qb8 16. Rfd1 Nd8 17. Ne4 e5 18. Bg5 f6 19. Be3 f5 20. Nc3 Bxg2 21. Kxg2 Ne6 22. Nd5 {1-0 (54) Aronian,L (2792)-Carlsen,M (2855) Paris 2016 CBM 173 [Besenthal,K]}) 15... Rc8 16. Nxc6 Bxc6 17. Rfd1 Bxg2 18. Kxg2 Qc7 (18... e5 $5 {[%cal Re5f4]} 19. Be3 Qc7 $11) 19. e4 Qb7 20. f3 h6 21. Be3 Nf6 22. Qf2 b5 23. c5 d5 24. c6 Qa8 (24... Rxc6 $11 {and Black is okay.} 25. e5 Rxc1 26. Rxc1 Nd7) 25. e5 $18 d4 26. Bxd4 (26. Nxd4 $6 Nd5 $14) (26. exf6 $18 dxe3 27. Qxe3 Bxf6 28. Qb6) 26... Nd5 $14 27. Na5 $36 {[%mdl 2048] White has the initiative.} Rc7 $2 (27... Bb4 $14 28. Nb7 Ne7) 28. Bc5 (28. Bb6 $18 {Black must now prevent Rxd5.} Bd8 29. Bxc7 Bxc7 30. Nb7) 28... Rfc8 (28... Bxc5 $16 29. Qxc5 (29. Rxc5 Qd8 $16) 29... Qa7 30. Qxa7 Rxa7) 29. Bd6 $18 Bg5 30. f4 Rxc6 31. Nxc6 Rxc6 32. Rxc6 ({Weaker is} 32. fxg5 Rxc1 33. Rxc1 Nf4+ 34. Kf1 Qh1+ 35. Qg1 Qf3+ 36. Qf2 Qh1+ 37. Qg1 Qf3+ 38. Qf2 Qh1+ $11) 32... Qxc6 33. Kh3 ({Avoid the trap} 33. fxg5 $2 Nf4+ 34. Kf1 Qh1+ 35. Qg1 Qf3+ 36. Qf2 Qxd1+ 37. Qe1 Qf3+ 38. Qf2 Qd3+ 39. Ke1 Qb1+ 40. Kd2 Qxb2+ 41. Ke3 Nd5+ 42. Kf3 Qc3+ 43. Ke2 hxg5 $19) 33... Bd8 {intending ...f5.} 34. Qc5 $4 {[%mdl 8192] [#]} (34. f5 $18) 34... Qa8 $4 {[%mdl 8192]} (34... Nxf4+ $1 {[%mdl 512] mates} 35. Kg4 Qe4 36. Be7 Qe2+ {[%mdl 64] Double Attack} 37. Kxf4 g5+ {[%mdl 64] X-Ray Attack} 38. Bxg5 hxg5#) 35. Rc1 $4 {[%mdl 8192] [#]} (35. Rd3 $18) 35... Nxf4+ $1 {[%mdl 512] Black mates.} 36. Kg4 {[#]} Qe4 $1 {[%csl Gf4][%cal Rh6h5]} 37. Qc6 (37. Be7 Qe2+) 37... h5# {Never resign too early!  Weighted Error Value: White=0.62/Black=0.48} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.7"]
[White "Carlsen, Magnus"]
[Black "Nihal Sarin"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "2847"]
[BlackElo "2620"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,104,11,-4,31,-14,-18,-27,-21,-78,-92,-88,-81,-84,-71,-78,-76,-72,-71,-87,-94,-105,-97,-558,-575,-570,-567,-526,-161,-145,0,-366,0,-138,-131,-706,-710,-29992,-899,-876,-872,-845,-816,-810,-798,-936,-925,-890,-873,-1240,-1152,-1422,-1466,-1058,-1031,-1647,-1216,-29963,-29963,-29956,-29959,-8474,-11286,-5720,-5515,-4794,-2145,-29977,-29978,-29980,-29981,-29980,-29972,-29984,-29985,-29986,-29984,-29984,-29984,-29984,-29985,-29988,-29989,-29989,-29986,-29986,-29986,-29986,-29983,-29993,-29994]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c4 g6 7. h3 Bg7 8. Nc3 O-O 9. O-O Nd7 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 10. Be3 (10. Bg5 $5 {[%cal Rg5d8]} f6 11. Be3 $11) 10... Nd4 11. Bxd4 exd4 {Black has an edge.} 12. Bxd7 (12. Ne2 $11 {remains equal.}) 12... dxc3 $17 13. Bxc8 cxb2 ({But not} 13... Rxc8 $6 14. bxc3 Bxc3 15. Rb1 $11) 14. Rb1 {[#]} Rxc8 $146 ({Predecessor:} 14... Qxc8 15. d4 c5 16. Rxb2 cxd4 17. Qd3 b5 18. cxb5 Qc3 19. Qb1 axb5 20. Rxb5 Qa3 {1-0 (41) Peczely,S (2243)-Miturova,M (2057) Prague 2014}) 15. d4 c5 16. Rxb2 cxd4 17. Rxb7 Rxc4 18. Qb3 Rc3 19. Qa4 {[%mdl 8192] [#]} (19. Qd5 $17 {is tougher.}) 19... Rxf3 $1 $19 {[%mdl 576] Remove Defender} 20. gxf3 Qg5+ 21. Kh1 Qf4 $2 (21... Be5 $1 22. Rg1 Qf4) 22. Kg2 Qg5+ $2 (22... Be5 $1 $17 {[%csl Ge5][%cal Rf4h2]} 23. Rh1 Qg5+ 24. Kf1 Qc1+ 25. Kg2 Qg5+ 26. Kf1 Rc8) 23. Kh1 Qf4 $2 (23... Be5 $1 $19 24. Rg1 Qf4) 24. Kg2 $1 $17 {[#]} Be5 $1 $40 {[%csl Ge5][%cal Rf4h2][%mdl 1152] Black has strong compensation. Black attacks with force. White is on the road to losing.} 25. Rd1 $2 {[%mdl 8192] [#]} (25. Rh1 $17) 25... Rc8 $1 $19 26. Qd7 Rc2 (26... Qh2+ $142 27. Kf1 Qh1+ {[%mdl 64] Double Attack} 28. Ke2 Rc2+ {[%mdl 64] Double Attack} 29. Rd2 d3+ {[%mdl 64] Decoy} 30. Kxd3 Rc3+ 31. Ke2 Qxf3+ {[%mdl 64] Double Attack} 32. Kf1 Rc1+ 33. Rd1 Rxd1#) 27. Qe8+ Kg7 {( -> ...Qh2+)} 28. Qxf7+ Qxf7 29. Rxf7+ Kxf7 {[%mdl 4096] Endgame KRB-KR} 30. f4 Bxf4 31. Rxd4 Rxa2 32. Rc4 Be3 33. Kf3 Bc5 34. e5 Rxf2+ 35. Kg3 Ke6 36. exd6 Rf5 37. Ra4 Bxd6+ 38. Kg2 a5 {[%cal Ba6a5,Ba5a4,Ba4a3][%mdl 32]} 39. Re4+ Re5 40. Rh4 Bb4 41. Rxh7 a4 {Black mates.} 42. Rb7 Bd6 43. Ra7 a3 44. Kf3 {[#]} Re3+ $3 {[%mdl 512]} 45. Kg4 (45. Kg2 Rg3+) 45... Rg3+ 46. Kh4 Rb3 47. Kg5 Rxh3 48. Kxg6 Rg3+ 49. Kh5 Kd5 50. Kh4 Rc3 51. Kg4 Bc5 52. Kf5 Bxa7 {Weighted Error Value: White=1.10/Black=0.53} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.8"]
[White "Carlsen, Magnus"]
[Black "Vaishali R"]
[Result "1-0"]
[ECO "E24"]
[WhiteElo "2847"]
[BlackElo "2393"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,59,-23,-27,-14,-20,-31,-26,-28,-8,-2,65,64,65,65,178,152,161,152,245,245,242,233,245,209,245,245,329,318,388,362,407,396,388,396,429,439,537,515,616,643,627,495,2120,2101,2114,1804,29990,29991]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 Nc6 {is recently more successful than 6...d5.} 7. e4 d6 8. Ne2 {E24: Nimzo-Indian: Sämisch: Unusual Black 5th moves and 5...c5 sidelines.} O-O 9. Bg5 {[#]} h6 $146 ({Predecessor:} 9... b6 10. Nc1 Ba6 11. Nb3 Ne7 12. Bd3 Ng6 13. O-O h6 14. Be3 e5 15. g3 Qd7 {0-1 (60) Haczek,K (1795)-Riehl,J (2005) Bayern 2001}) 10. Bh4 {Black has an edge.} e5 11. d5 Ne7 ({Black should play} 11... Na5 $11) 12. Bxf6 $14 gxf6 13. g4 b5 (13... Ng6 $14) 14. Qd2 Kg7 15. Ng3 Ng6 (15... bxc4 $16 {was necessary.} 16. Bxc4 Ng6) 16. Nh5+ $18 ({Don't take} 16. cxb5 $6 Nf4) 16... Kh7 17. cxb5 a6 18. a4 axb5 19. Bxb5 f5 20. exf5 Nf4 21. Nxf4 exf4 22. Qxf4 Qf6 23. Kf2 Ba6 24. c4 {[%cal Bc3c4,Bc4b5][%mdl 32]} Bxb5 25. cxb5 Qb2+ 26. Kg3 h5 27. Rhe1 Rae8 (27... hxg4 $142 28. fxg4 Rfe8 29. Rxe8 Rxe8) 28. f6 {[#] Threatening mate with Qf5+.} h4+ 29. Kxh4 {Qf5+ would kill now.} Rh8 30. Rxe8 {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.13/Black=0.60} 1-0

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.9"]
[White "Khademalsharieh, Sarasadat"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2494"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,64,19,21,22,25,13,20,0,2,0,0,0,0,0,8,0,0,0,0,0,0,0,1,-16,-15,-45,-46,-35,-9,-62,0,0,0,-10,37,37,45,39,36,-128,-120,-165,-152,-165,0,0,0,0,0,0,0,0,0,-604,-533]} 1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. Bg5 Qb6 5. Bxf6 Qxf6 6. c3 g6 7. e4 {A43: Schmid Benoni.} Qb6 8. Nbd2 Bg7 9. Be2 {The position is equal.} O-O 10. O-O d6 11. a4 b4 12. Nc4 Qd8 13. cxb4 cxb4 14. Nd4 {[#]} Ba6 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 14... Bd7 15. Rc1 Na6 16. Nxd6 exd6 17. Bxa6 Qb6 18. Bb5 Bxd4 19. Bxd7 Bxb2 20. Rc6 Qb7 {½-½ (75) Kryakvin,D (2529)-Ponkratov,P (2604) Minsk 2015}) 15. Rc1 Bxd4 16. Qxd4 Nd7 17. Qd2 Nc5 18. Qxb4 Rb8 19. Qc3 Nxe4 20. Qe3 (20. Qe1 $11) 20... Nf6 ({Black should try} 20... Nc5 $15) 21. Qxa7 $11 Bxc4 22. Bxc4 Rxb2 (22... Ra8 $5 {[%cal Ra8a7]} 23. Qb7 Rb8 $11) 23. a5 Qd7 24. Qd4 Rb4 25. a6 $2 (25. Qd2 $1 $14 {stays ahead.} Rfb8 26. a6) 25... Rc8 $17 26. Rc3 {[#]} Qa4 {[%cal Rc8c4]} 27. Rfc1 {[#]} Rc5 $2 (27... Nd7 $1 $19 {aiming for ...Rc5.} 28. h3 Nb6) 28. Qd3 $11 Nxd5 29. Bxd5 Rd4 $36 {[%mdl 2048] Black has the initiative.} 30. Qxd4 Qxd4 31. Rxc5 dxc5 32. a7 $2 {[%mdl 8192]} Qxd5 {Weighted Error Value: White=0.51/Black=0.14} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.10"]
[White "Sokolovsky, Yahli"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2442"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,58,51,57,54,25,56,54,63,30,54,0,52,12,61,65,65,36,39,-47,-45,-130,-123,-178,-39,-102,-106,-187,-168,-161,-72,-154,-93,-441,-436,-1409,-1400,-1254,-1224,-2761,-2687,-29988,-29989,-29989,-29990,-29992,-29993]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be2 b6 8. Be3 Bb7 {B41: Sicilian: Kan Variation: 5 c4.} 9. Qd3 d6 10. f3 Nbd7 {White is slightly better.} 11. b3 Be7 {[#]} 12. g4 $146 ({White should play} 12. Qd2 $14) ({Predecessor:} 12. Rc1 O-O 13. O-O Rac8 14. Rfd1 Qb8 15. Nc2 Rfe8 16. Bf4 Ne5 17. Qd2 Bd8 18. Bg5 {0-1 (34) Nguyen,T (2131)-Kunte,A (2499) Canberra 2018}) 12... O-O (12... d5 $11 13. exd5 exd5) 13. g5 Ne5 14. Qd2 Nfd7 15. f4 Nc6 16. O-O-O (16. O-O $14) 16... b5 $15 17. cxb5 (17. Rhf1 $15) 17... Nxd4 $17 18. Bxd4 {[#]} (18. Qxd4 $17 axb5 19. Bxb5) 18... Bxe4 (18... axb5 $1 $19 19. Kb2 b4) 19. Rhg1 ({Better is} 19. Rhe1 $15) 19... axb5 {aiming for ...b4.} 20. Bxb5 (20. Kb2 $17 {is a better defense.} Bg6 21. Nxb5) 20... d5 {Threatens to win with ...Ba3+.} 21. Kb2 Ba3+ 22. Ka1 {[#]} Bb4 (22... Nc5 $142 $1 23. Na4 Rfc8 24. Nxc5 Bxc5 25. Bxc5 Qxc5) 23. Bd3 $2 {[%mdl 8192] Now White is beyond hope.} (23. Bxd7 $17 {is a better chance.} Qxd7 24. Qe3) 23... Nc5 $19 24. Bc2 (24. Bxc5 $142 Qxc5 25. Rc1) 24... Qa5 {( -> ...Bxc3+)} 25. a4 Rfb8 {Hoping for ...Nxa4!} 26. Rb1 Bxc2 27. Qxc2 Bxc3+ {Black mates.} 28. Bxc3 {[#]} Nxb3+ $1 {[%mdl 512]} 29. Kb2 (29. Rxb3 Qxa4+) 29... Qxa4 {[%csl Ga8][%cal Ra4a3] Weighted Error Value: White=0.98/Black=0.21} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.11"]
[White "Carlsen, Magnus"]
[Black "Shuvalova, Polina"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2847"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,58,16,-22,12,13,29,22,15,0,36,41,39,43,47,0,0,0,0,0,0,0,0,0,0,0,0,-97,0,-60,-79,-91,-147,-185,-189,-160,0,0,29988,29989,29989,29990,29991,29992,29992,29993,29993,29993,29998,29999,29999]} 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. Qc2 b6 {Recently 6...d4 got a lot of attention. A14: English Opening: 1...e6 with b3 by White.} 7. cxd5 Nxd5 8. Nc3 Bb7 {The position is equal.} 9. Nxd5 Bxd5 (9... exd5 {is more complex.} 10. d4 c5 11. Bf4 Nd7 12. Rac1 Re8) 10. e4 Bb7 11. d4 c5 12. d5 exd5 13. exd5 Qxd5 14. Nh4 $1 Qd7 {And now ...Bxh4 would win.} 15. Rd1 Qc8 16. Nf5 Re8 17. Bxb7 Qxb7 {[#]} 18. Bh6 $146 {[#]} ({Predecessor:} 18. Qa4 Nc6 19. Qg4 Bf6 20. Nh6+ Kh8 21. Rd7 Re1+ 22. Kg2 Qa6 23. Nxf7+ Kg8 24. Nh6+ Kh8 25. Nf7+ {½-½ (25) Inkiov,V (2510)-Schneider,L (2405) Gausdal 1990}) 18... gxh6 (18... Bf8 $1 $17 19. Bd2 g6) 19. Nxh6+ (19. Qe2 $11 Kh8 20. Rd6 {[%mdl 64] Back Rank}) 19... Kh8 $1 $15 {White must now prevent ...Bf8.} 20. Nxf7+ {[#]} Kg7 $1 21. Nd6 Bxd6 22. Rxd6 Na6 $2 (22... Nd7 $17 {Strongly threatening ...Ne5.} 23. Qc3+ Kf8) 23. Rad1 Re7 {[%mdl 8192]} (23... Kh8 $11) 24. Qc3+ {White mates.} Kg8 25. Qc4+ Kg7 26. Qg4+ Kf7 27. Qf5+ Kg8 28. Qg5+ Kf7 29. Rf6+ Ke8 30. Qg8# {Weighted Error Value: White=0.16/Black=0.43} 1-0

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.12"]
[White "Carlsen, Magnus"]
[Black "Bjerre, Jonas Buhl"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2847"]
[BlackElo "2550"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,129,0,0,0,0,0,0,0,0,-35,0,0,0,-40,-17,-22,-38,-31,-28,-45,-2,-45,0,-19,-20,-20,-2,-10,9,9,16,20,44,49,34,50,47,46,46,39,142,37,37,30,43,22,15,8,18,4,5,5,49,12,12,12,20,20,35,0,0,0,0,0,402,388,357,402,388,365,413,435,1516,1539,1497,869,1596,2086,1404,1275,2691,2607,2243,2037,1441,1330,29976,29977,29979,29981,29983,29984,29984,29985,29985,29986,29986,29987,29987,29988,29989,29990,29990,29989,29991,29990,29990,29991,29991,29992,29992,29993]} 1. Nf3 c5 2. e4 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Bg5 O-O 9. Bxf6 Bxf6 10. Qd3 $1 {10.Qd3 scores better than 10.Nd5.} Be6 11. O-O-O {B92: Sicilian Najdorf: 6 Be2.} Be7 12. Nd5 Bxd5 13. Qxd5 {The position is equal.} Qc7 14. Qc4 $5 {[%mdl 4] A promising side line.} Qb6 15. Rhf1 Nd7 {[#]} 16. Nd2 $146 ({Predecessor:} 16. Kb1 Nf6 17. g4 Ne8 18. f4 exf4 19. Rxf4 Bf6 20. Rdf1 Qc7 21. Qd3 Be5 22. R4f2 {1-0 (38) Bernadskiy,V (2570)-Idani,P (2572) Teheran 2017}) 16... Rfc8 17. Qb3 Qc7 18. Kb1 b5 19. Bg4 Nc5 20. Qd5 (20. Qc3 $5 {[%cal Rg4c8]}) 20... Rcb8 21. f4 {fxe5 is the strong threat.} Bf6 22. fxe5 Bxe5 23. Nf3 Bf6 24. Nd4 {[#] Strongly threatening Rxf6!} Bxd4 25. Rxd4 Rf8 26. Qxd6 Qxd6 27. Rxd6 Nxe4 28. Rd4 Rae8 29. a4 Re5 (29... bxa4 $14 30. Rf4 Nf6) 30. Bf3 (30. axb5 $16 axb5 31. Rf5 Rxf5 32. Bxf5) 30... f5 31. Rfd1 g5 32. axb5 axb5 33. Rd5 Rfe8 34. Bxe4 fxe4 $11 {[%mdl 4096] Endgame KRR-KRR} 35. Kc1 Kg7 36. Rxe5 Rxe5 $14 {KR-KR} 37. Rd7+ Kg6 38. Kd2 b4 39. Rd4 e3+ $1 40. Ke2 Rc5 41. Kd3 Kf5 $2 {[%mdl 8192] Black is now going downhill.} (41... Re5 $11 42. Ke2 Rc5) 42. g4+ $18 Kg6 43. Rxb4 Re5 {aiming for ...e2.} 44. Ke2 h5 45. h3 ({Don't do} 45. Rb6+ Kh7 $18) 45... hxg4 (45... Re6 $142 46. Rc4 hxg4 47. hxg4 Kf6) 46. hxg4 Kf6 47. Rd4 Rb5 48. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Ke5 49. Kxe3 Rb7 50. Re4+ Kd5 51. c4+ Kd6 52. b5 Ra7 53. Kd4 {White mates.} Ra1 54. c5+ Kc7 55. Re7+ Kd8 56. Rg7 Rd1+ 57. Ke5 Re1+ 58. Kd6 Rd1+ 59. Kc6 Kc8 60. Rg8+ Rd8 61. Rxd8+ {[%mdl 64] [#] Overworked Piece} Kxd8 62. Kb7 Ke7 63. c6 Ke6 64. c7 Ke5 65. c8=Q {Weighted Error Value: White=0.13/Black=0.48} 1-0

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.13"]
[White "Murzin, Volodar"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2478"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,66,-31,-6,-27,0,-10,0,-46,-20,-39,-28,-25,12,0,10,-96,-98,-90,-95,-100,-103,-127,-122,-214,-202,-227,-222,-268,-206,-275,-258,-286,-275,-264,-274,-284,-275,-321,-290,-354,-343,-354,-302,-300,-319,-655,-681,-678,-672,-671,-674,-884,-840,-1062,-1064,-1050,-558,-1640,-543]} 1. d3 d5 2. Nf3 Nc6 3. g3 e5 4. Nbd2 Be6 5. Bg2 Qd7 6. Ng5 {A07: Réti Opening: New York and Capablanca Systems.} Bg4 7. h3 Bh5 8. c3 {[#] The position is equal.} f6 $146 ({Predecessor:} 8... O-O-O 9. Qa4 Kb8 10. g4 Bg6 11. c4 Be7 12. Nb3 h6 13. Bxd5 hxg5 14. Be3 Bb4+ 15. Kf1 Nf6 16. a3 Nxd5 17. Bxa7+ Nxa7 18. axb4 Qxa4 19. Rxa4 Nf4 {0-1 (19) Blaeser,R (1950)-Bjarnason,O (2212) Luxembourg 2014}) 9. Ngf3 Bf7 10. b4 Bd6 11. a4 Nge7 12. e4 (12. Bb2 $11 {remains equal.}) 12... d4 $17 {Black continues to play with concentration.} 13. cxd4 Nxb4 ({Much worse is} 13... Bxb4 $6 14. d5 $11) 14. O-O exd4 15. e5 fxe5 16. Ne4 (16. Nc4 $17 Bxc4 17. dxc4) 16... O-O $19 17. Ba3 {White wants to play Bxb4.} a5 18. Re1 Bd5 19. Qd2 Nec6 20. Nh2 Be7 21. Ng4 Rf5 22. h4 Raf8 23. Bh3 Qe8 24. Re2 Qg6 25. Nh2 Bxe4 26. dxe4 R5f7 {Hoping for ...d3.} 27. Kh1 $2 {[#]} (27. Bf5 Qd6 28. Rf1) 27... d3 {Black is clearly winning.} 28. Bf5 Qd6 ({Weaker is} 28... dxe2 29. Bxg6 hxg6 30. Qxe2 $15) 29. Re3 g6 30. Bh3 Rxf2 31. Qd1 Qd4 32. Ng4 Nc2 33. Bxe7 Nxe7 {Weighted Error Value: White=0.70/Black=0.24} (33... Nxe3 $142 34. Nxe3 Qxe3) 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.14"]
[White "Badelka, Olga"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2433"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,68,-60,-50,-37,-34,-72,-57,-60,-54,-65,-66,-52,-37,-89,-62,-95,-20,-76,-65,-63,-49,-78,-72,-158,-132,-153,-115,-163,-141,-141,-149,-239,-168,-174,-175,-162,-168,-197,-197,-297,-295,-356,-270,-276,-270,-266,-266,-343,-306,-316,-305,-491,-487,-478,-445,-538,-525,-512,-513,-953,-665]} 1. e4 e5 2. Ke2 Ke7 3. Ke1 Ke8 {[#]} 4. Ke2 $146 ({Predecessor:} 4. d3 d6 5. a4 h5 6. a5 h4 {½-½ (10) Rodchenkov,S (2361)-Isajevsky,A (2351) Samara 2004}) 4... Nf6 5. Nc3 d5 6. exd5 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Nxd5 7. d3 Nc6 {[#] Threatens to win with ...Nd4+.} 8. Ke1 {Black is slightly better.} Bc5 9. Nf3 f6 (9... h6 {seems wilder.} 10. Be2 f5 11. Kf1 Nf6 12. Na4 Bd6) 10. Be2 Be6 11. Nxd5 ({White should play} 11. Ne4 $15 Be7 12. c4) 11... Bxd5 (11... Qxd5 {feels hotter.} 12. Kf1 Kf7 13. h4 Rhd8 14. Bd2 Bb6) 12. Be3 Bb6 ({Black should try} 12... Qe7 $17) 13. Bxb6 (13. c4 $11 Bxf3 14. Bxf3) 13... axb6 $17 14. h4 Kd7 15. h5 Kc8 {Black continues to play with concentration.} 16. Qd2 (16. Kf1 $142) 16... Kb8 ({Much less strong is} 16... Rxa2 17. Rxa2 Bxa2 18. b3 $15) 17. h6 g6 18. a4 Re8 19. Kf1 f5 20. b4 (20. Rh3 $17 {was worth a try.}) 20... Bxf3 21. Bxf3 e4 22. Be2 Qf6 23. c3 {[#]} Nxb4 $1 {[%mdl 512]} 24. d4 (24. Rh3 $142) 24... Nd5 $19 25. Bc4 Qc6 26. Bxd5 Qxd5 27. Kg1 Ra5 28. g3 e3 29. fxe3 Qf3 30. Re1 $2 (30. Qf2 Qe4 31. Qe2) 30... Qxg3+ {Black is clearly winning.} 31. Kf1 Rxa4 ({Resist} 31... Qf3+ 32. Kg1 $19) 32. Rg1 Qh3+ 33. Qg2 Qxh6 34. Qg3 (34. Rh1 $142 Qg7 35. Rh2) 34... Ra2 {Weighted Error Value: White=0.51/Black=0.20} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.15"]
[White "Carlsen, Magnus"]
[Black "Keymer, Vincent"]
[Result "1/2-1/2"]
[ECO "E24"]
[WhiteElo "2847"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,118,-16,-24,-42,-8,0,41,-52,-43,-58,-50,-56,-47,-56,-49,-52,-27,-67,-37,-60,-68,-62,-76,-88,-89,-91,-85,-117,-104,-142,-142,-142,-130,-142,-143,-176,-141,-190,-191,-221,-232,-216,-185,-183,-180,-179,-170,-183,-173,-194,-175,-227,-160,-187,-200,-293,-249,-249,-249,-230,-149,-218,-149,-149,-149,-149,-149,-149,-149,-149,-149,-149,0,0,-2,-149,-149,-143,-145,-149,-149,-149,-149,-149,-149,-168,-126,-127,-47,-38,-22,-51,507,0,0,0,0,0,0,0,0,0,0,-10,8,-10,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d6 {6...Nc6 gains popularity.} 7. e4 Nc6 8. Ne2 {[#] E24: Nimzo-Indian: Sämisch: Unusual Black 5th moves and 5...c5 sidelines.} h6 $146 ({Predecessor:} 8... e5 9. d5 Ne7 10. h4 h5 11. Ng3 Bd7 12. Bd2 Qc7 13. a4 O-O-O 14. a5 Rdf8 15. Bd3 Kb8 {½-½ (36) Yu,Y (2764)-Wojtaszek,R (2749) Shenzhen 2018}) 9. Ng3 e5 {[%cal Rc5d4]} 10. dxc5 (10. d5 $14 Ne7 11. Bd3) 10... dxc5 $15 11. Qxd8+ Kxd8 12. Be2 b6 13. Nf1 Ba6 14. Ne3 Na5 15. Kf2 Kc7 16. Nd5+ Kb7 17. Rd1 Rad8 $1 ({Inferior is} 17... Nxc4 18. Nxf6 gxf6 19. Rd7+ Kc6 20. Rxf7 $16) 18. Nxf6 {[#] Rxd8 is the strong threat.} Rxd1 19. Bxd1 {Black must now prevent Ng4.} gxf6 20. f4 Bxc4 21. fxe5 fxe5 22. Be3 Be6 23. Bh5 Nc4 24. Bc1 a5 25. a4 Kc7 26. h4 Nd6 27. Bf3 Bb3 28. g4 Bc2 29. Ke3 Nc4+ 30. Kf2 f6 31. h5 Nd6 32. Ke3 (32. Be3 $142) 32... Nf7 33. Ra2 Bb3 34. Rf2 (34. Ra3 $142 Be6 35. Ra1) 34... Ng5 ({Less strong is} 34... Bxa4 35. Be2 $15) 35. Be2 Rf8 ({Stronger than} 35... Bxa4 36. Rxf6 Bc2 37. Rg6 $11) 36. Bb5 Be6 37. Rg2 (37. Be2 $17) 37... Bc8 38. Rg1 Bb7 39. Bd3 Bc6 40. Bc2 Rf7 41. Rf1 Bd7 42. Rg1 Nh3 (42... Be6 $17 43. Bd2 Rd7) 43. Rg3 $1 $11 {[%cal Rg3h3]} Nf4 44. Rg1 (44. Kf3 $11 {keeps the balance.}) 44... Rg7 $17 45. Kf3 Nh3 46. Rg3 Ng5+ 47. Ke2 Be6 48. Ke3 Bc4 49. Rg1 b5 50. axb5 Bxb5 ({Black should play} 50... Nh3 $17 51. Re1 Rxg4) 51. Ba3 $15 Kc6 52. Rd1 Rd7 $2 {[%mdl 8192] [#]} (52... Nh7 $15 {stays ahead.} 53. Rg1 a4) 53. Rxd7 $2 ({Only move:} 53. c4 $1 $18 {[%cal Rc4b5]} Rxd1 54. cxb5+ Kxb5 55. Bxd1) 53... Kxd7 $11 {The position is equal.} 54. Bxc5 $18 {[%mdl 4096] Endgame KBB-KBN} Ne6 55. Ba3 a4 56. Kf3 Ng5+ 57. Ke3 Ne6 58. Bc1 Kc6 59. Ba3 {Strongly threatening c4!} Kd7 {Weighted Error Value: White=0.29/Black=0.33} 1/2-1/2

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.16"]
[White "Carlsen, Magnus"]
[Black "Yip, Carissa"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2847"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,51,30,26,38,56,37,19,46,29,52,51,52,33,51,50,52,27,37,39,52,22,18,20,73,69,137,138,210,202,502,491,578,611,767,768,734,741]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 Be7 7. O-O b5 8. Bc2 O-O 9. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3][%mdl 32]} Re8 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 10. Re1 Bf8 11. Nf1 g6 {The position is equal.} 12. a4 $5 {[%mdl 4] An interesting side line.} Bb7 13. Bg5 h6 14. Bh4 Bg7 15. Ne3 Qd7 16. b4 {[#]} Ne7 $146 ({Predecessor:} 16... Nd8 17. Nd2 Ne6 18. Nb3 h5 19. Na5 Bc8 20. Bxf6 Bxf6 21. Bb3 Rb8 22. axb5 axb5 {½-½ (61) Fressinet,L (2711)-Amin,B (2628) Saint-Quentin 2014}) 17. Bb3 Nh5 18. Qc2 Nf4 19. Bg3 d5 (19... Nh5 $11 {remains equal.}) 20. h3 Rad8 (20... g5 $14) 21. Ng4 $16 Qd6 (21... Nc6 $16 {keeps fighting.}) 22. d4 {[%cal Rd4e5]} dxe4 $2 (22... g5 23. Ngxe5 (23. Nfxe5 h5 $16) (23. dxe5 Qg6 $16) 23... Neg6) 23. Nfxe5 $18 {White is clearly winning.} ({Weaker is} 23. Bxf7+ Kxf7 24. Nfxe5+ Kg8 $18) 23... Nfd5 {[#]} 24. Nxf7 $1 {[%mdl 576] Double Attack} Qd7 (24... Qc6 25. Nxd8) 25. Nxd8 Rxd8 26. axb5 {Weighted Error Value: White=0.06/Black=0.44} 1-0

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.17"]
[White "Mammadzada, Gunay"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2443"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,119,34,57,40,46,30,39,30,24,29,22,0,0,2,5,3,100,0,0,0,0,1,33,0,0,0,0,0,17,-28,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-19,18,-10,0,0,0,0,47,52,50,62,47,39,47,0,14,4,43,0,33,22,92,94,87,87,94,81,87,77,89,14,55,45,53,0,8,8,8,8,67,60,122,0,0,-23,-23,-141,14,-29998,-29999,-29999,-29994,-29994,-29986,-29987,-29987,-29990,-29991,-29996,-29993,-29994,-29995,-29995,-29996,-29997,-29998,-29999]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 c6 6. h3 {B01: Scandinavian Defence.} Bf5 7. Bc4 Nbd7 8. O-O {White is slightly better.} e6 9. Qe2 Be7 10. Bg5 O-O 11. Rad1 {[#]} Rfe8 $146 ({Predecessor:} 11... h6 12. Bh4 Qc7 13. Ne5 Nxe5 14. dxe5 Nd5 15. Bxe7 Qxe7 16. Ne4 Bxe4 17. Qxe4 Rfd8 {0-1 (51) Yu,R (2511)-Barbosa,O (2550) Ho Chi Minh City 2012}) 12. Ne5 Rad8 (12... Nd5 $11 13. Ne4 Qc7) 13. Bf4 (13. g4 $16 Bg6 14. h4 (14. Nxg6 hxg6 15. Rfe1 Qc7 $11)) 13... Qb4 $11 14. Bb3 {Black should prevent g4.} Nxe5 15. Bxe5 h6 16. a3 Qa5 17. Rfe1 Rd7 18. Qf3 Bg6 19. Rd2 Qd8 20. Bc4 Bd6 {next ...Bxe5 is good for Black.} 21. Bd3 Bxd3 22. Rxd3 Bxe5 23. dxe5 Rxd3 24. cxd3 Nd5 25. Ne4 Qb6 26. Nd6 Rf8 27. Qe2 a5 28. g3 Nc7 29. Nc4 Qc5 30. Qe3 Qxe3 (30... Qd5 {looks sharper.} 31. Qe4 Qc5 32. Nd6 Qb6 33. Nc4 Qc5) 31. fxe3 {[%mdl 4096] Endgame KRN-KRN} Ra8 32. Nd6 b6 33. Rf1 Rf8 34. e4 c5 35. Rc1 Rd8 36. Kf2 f6 37. Ke3 fxe5 (37... Kf8 $11) 38. Nc4 $1 $16 {[%csl LRb6,LRe5][%mdl 64] [#] Double Attack} Rb8 39. Nxe5 Nb5 40. a4 Nd4 41. Rf1 Rb7 42. Nc4 (42. Rf2 $16) 42... Nc2+ 43. Kd2 Nd4 44. Ke3 (44. g4 $14) 44... b5 45. axb5 Rxb5 46. Rf2 a4 ({Black should play} 46... g5 $11) 47. Ne5 $1 $14 Rb3 (47... Rb7 $14) 48. Nc4 (48. Nd7 $16) 48... Nc6 $11 49. e5 Nb4 50. Ke4 (50. Rd2 $11) 50... Nxd3 $2 (50... Rxd3 $17 {And now ...Rd4+ would win.} 51. Nb6 Kh7) 51. Nd6 $2 {[%mdl 8192] [#] Now White is beyond hope.} Nxf2+ {Black mates.} 52. Kf4 Nxh3+ 53. Kg4 Rb4+ 54. Kxh3 Rxb2 {KR-KN} 55. g4 Rb3+ 56. Kh4 a3 57. g5 a2 58. gxh6 a1=Q 59. Kg5 Qxe5+ {[%mdl 64] Double Attack} 60. Kg6 Rg3# {Weighted Error Value: White=0.30/Black=0.19} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.18"]
[White "Yoo, Christopher Woojin"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "2455"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "148"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,148,24,54,-3,-10,-10,-21,-37,23,22,32,0,0,-18,0,-33,-24,-59,-41,-46,-42,-150,-151,-209,-203,-275,-277,-285,-293,-291,-281,-284,-277,-287,-284,-280,-275,-351,-344,-375,-321,-318,-311,-313,-310,-310,-319,-309,-312,-315,-306,-298,-292,-298,-293,-323,-342,-331,-335,-358,-359,-435,-435,-436,-436,-527,-508,-497,-492,-913,-908,-1218,-1073,-5373,-6087,-2783,-2802,-29977,-29978,-29978,-29978,-29979,-29971,-29971,-29972,-29980,-29981,-29981,-29982,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29986,-29985,-29986,-29987,-29988,-29988,-29989,-29989,-29990,-29990,-29991,-29991,-29992,-29992,-29993,-29993,-29994,-29994,-29995,-29995,-29990,-29990,-29990,-29991,-29992,-29995,-29996,-29997,-29998,-29998,-29998,-29998,-29995,-29995,-29994,-29995,-29995,-29996,-29995,-29997,-29998,-29998,-29998,-29998,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Qe2 {B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3).} (6. f3 $14) 6... Bg7 7. Bg5 Nc6 8. O-O-O {[#] The position is equal.} Qa5 $146 ({Black should play} 8... h6 $15 9. Be3 Ng4) ({Predecessor:} 8... Nxe4 9. Nxe4 Nxd4 10. Qd2 O-O 11. Bh6 e5 12. Bxg7 Kxg7 13. Bd3 f5 14. Ng5 h6 {0-1 (41) Pegado,S (1060)-Stuart,K (1085) IECG email 2005}) 9. Qb5 $11 Qxb5 10. Bxb5 (10. Ndxb5 {keeps more tension.} Kf8 11. f3 a6 12. Nc7 Rb8 13. N3d5) 10... Bd7 11. Bxc6 bxc6 12. Rhe1 h6 13. Bh4 g5 14. Bg3 Nh5 15. e5 {White is on the road to losing.} (15. Rd3 $15) 15... Nxg3 $17 16. exd6 (16. hxg3 $17 Bxe5 17. Nf3) 16... Bxd4 $19 17. Rxd4 Nf5 {[%mdl 64] [#] Double Attack} 18. Rd3 {intending g4.} Be6 19. dxe7 Kxe7 ({Resist} 19... Nxe7 20. Ne4 $19) 20. Ne4 Rhd8 ({And not} 20... Bxa2 21. b3 $11) 21. Rc3 Rac8 ({Weaker is} 21... Bxa2 22. b3 $17) 22. Nc5 Kf6 23. a4 Bd5 24. f3 Nh4 25. Re2 Re8 26. Rf2 Re1+ 27. Kd2 Rh1 28. g3 Nf5 29. Rd3 Re8 30. b3 Ra1 31. Kc3 Re3 32. Kb4 Rxd3 33. Nxd3 Nd4 34. f4 g4 35. Ne5 Kf5 36. Kc5 Nf3 37. Nxc6 Bxc6 38. Kxc6 {[%mdl 4096] Endgame KRN-KR} Rh1 39. Kd5 (39. c4 $142 Nxh2 40. b4) 39... Rxh2 40. Rxh2 Nxh2 {KN-KP} 41. c4 Nf1 42. c5 Nxg3 43. c6 Kf6 {Black mates.} 44. c7 Nf5 45. c8=N Ne7+ 46. Nxe7 Kxe7 {KP-KP} 47. Ke4 f5+ 48. Ke3 a5 49. Kf2 h5 50. Kg3 Kd6 51. Kh4 Kc5 52. Kg3 Kb4 53. Kh4 Kxb3 54. Kg3 Kxa4 55. Kh4 Kb4 56. Kxh5 g3 57. Kg5 g2 58. Kxf5 g1=Q 59. Ke6 a4 60. f5 a3 61. f6 a2 62. f7 a1=Q 63. f8=Q+ Qc5 64. Qf4+ Qad4 65. Qb8+ Kc4 66. Qe8 Qcd5+ 67. Ke7 Q4e5+ 68. Kf8 Qxe8+ 69. Kxe8 Qc6+ 70. Kf8 Kd5 71. Kg7 Qc7+ 72. Kg8 Ke6 73. Kh8 Qe7 74. Kg8 Kf6 {[%csl Gf6][%cal Re7g7] Weighted Error Value: White=0.52/Black=0.06} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.19"]
[White "Carlsen, Magnus"]
[Black "Liang, Awonder"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2847"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,118,0,1,0,0,-3,0,0,0,0,0,-4,0,-7,134,139,147,129,124,125,143,133,191,172,160,77,75,80,73,77,173,167,216,214,204,208,247,239,264,239,230,236,418,241,248,229,229,224,237,213,250,206,225,232,222,227,239,216,227,64,29,5,2,7,0,6,133,129,229,168,268,0,0,0,521,0,0,0,0,0,0,0,0,0,0,0,0,-56,-56,-75,-24,-25,0,0,0,0,0,-543,0,0,0,0,0,0,0]} 1. d3 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. Nbd2 Nc6 7. e4 d6 8. Re1 Qc7 9. a4 {A05: Réti Opening: 1 Nf3 Nf6.} b6 $5 {[%mdl 4] [#] Leaves trodden paths.} 10. e5 $146 ({Predecessor:} 10. Nf1 Bb7 11. Bg5 Nd7 12. c3 f6 13. Be3 Rad8 14. h4 Ba6 15. N1h2 Nce5 16. Nxe5 dxe5 {1-0 (63) Boudry,W (2044)-Punt,R (1876) Brasschaat 2018}) 10... dxe5 11. Nxe5 Nxe5 12. Bxa8 Bg4 13. Bf3 Nxf3+ 14. Nxf3 Qd7 {[#]} (14... Nd5 $11 {remains equal.}) 15. Ne5 $1 $16 {[%cal Re5d7][%mdl 512]} Qf5 16. Nxg4 Nxg4 17. Qe2 Bd4 18. Rf1 $1 Rd8 (18... Qh5 $16 19. h4 Nxf2 20. Qxh5 Ng4+ 21. Kg2 gxh5) 19. c3 ({Much less strong is} 19. Qxe7 $6 Qf3 $16) 19... Bf6 20. Kg2 (20. Bf4 $142) 20... Rxd3 21. f3 Ne5 22. Bf4 Nc6 (22... Rd5 $16) 23. Rad1 $36 {[%mdl 2048] White is really pushing.} c4 24. Rxd3 cxd3 25. Qe4 Qc8 26. Qxd3 g5 27. Be3 Ne5 28. Qe4 Qd7 $2 {[#]} (28... Nc4 {might work better.} 29. Bc1 h6) 29. Bd4 (29. Bxg5 $142 $1 {[%mdl 512]} Kg7 (29... Bxg5 30. Qxe5) 30. h4) 29... Ng6 30. Bxf6 exf6 {[%mdl 4096] Endgame KQR-KQN} 31. Rf2 Kg7 32. Qd4 Qe6 33. Rd2 h5 34. Qe4 Qc8 35. Rd6 Qc5 36. Qd4 Qf5 37. b4 $2 (37. Qd3 $18 Qe5 38. Rd4) 37... Qc2+ $14 38. Kf1 Qb1+ 39. Ke2 ({Don't take} 39. Qd1 Qb2 $16) 39... Qc2+ 40. Qd2 Qf5 (40... Qxa4 $11 {keeps the balance.} 41. f4 gxf4) 41. Qd3 $16 Qe5+ (41... Qh3 $16) 42. Kd2 Qe7 (42... h4 {was worth a try.}) 43. Qd5 $2 (43. Rd7 $18 Qe8 44. Qd5 (44. Rxa7 Qe6 $16)) 43... Ne5 $11 44. Kc2 {And now Kb3 would win.} Qc7 $2 {[%mdl 8192]} (44... Nc4 $1 $11 45. Qxc4 Qxd6) 45. f4 $2 ({White has to play} 45. Kb3 $18 {Hoping for f4.} h4 46. f4 gxf4 47. gxf4) 45... Nc4 46. Qc6 Qxd6 47. Qxc4 {KQ-KQ} Qd7 48. fxg5 Qxa4+ 49. Kb2 fxg5 50. Qd4+ f6 51. Qe4 ({White should play} 51. Qd8 $1 $11) 51... Qd7 $15 52. Qe2 h4 ({Black should try} 52... Kh6 $17) 53. gxh4 $11 g4 54. Qe3 Qf5 55. Qg3 Qf3 {...Qxg3 is the strong threat.} 56. Kb3 $2 {[%mdl 8192] [#]} (56. c4 $11 {and White stays safe.}) 56... Qd1+ $2 (56... Qxg3 $1 $19 57. hxg3 f5) 57. Kc4 {The position is equal.} Qe2+ 58. Kd4 a5 59. bxa5 bxa5 {[%mdl 32768] What a bad dream for Black.  Weighted Error Value: White=0.47/Black=0.57. Loss on time!?} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.20"]
[White "Carlsen, Magnus"]
[Black "Muzychuk, Anna"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2847"]
[BlackElo "2535"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,75,41,9,16,13,21,4,8,10,9,25,26,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-13,0,0,15,-62,-58,-81,48,48,48,48,48,55,106,95,119,137,285,286,498,472,724,843,812,826,804,797,731,727]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 g6 7. O-O Bg7 8. Re1 O-O 9. Nbd2 Re8 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 10. h3 h6 11. Nf1 b5 {[%cal Bb7b5,Bb5b4][%mdl 32] The position is equal.} 12. Bc2 d5 13. a4 {[#]} Be6 $146 ({Predecessor:} 13... Bb7 14. b4 Nb8 15. Ng3 Nbd7 16. Be3 Qe7 17. Qb1 dxe4 18. dxe4 Nb6 19. Nd2 Nxa4 20. Bxa4 bxa4 21. Rxa4 {½-½ (37) McShane,L (2663)-Short,N (2648) Bunratty 2019}) 14. Ng3 b4 15. a5 dxe4 16. Nxe4 Nxe4 17. dxe4 Qxd1 18. Bxd1 {Ba4 is the strong threat.} bxc3 19. bxc3 Red8 20. Be2 Ne7 {[%cal Bc6e7,Be7c8,Bc8d6][%mdl 32]} 21. Be3 Nc8 22. Nd2 Nd6 23. f3 Nb5 24. Rec1 Bf8 25. Kf2 f5 {aiming for ...f4.} 26. Ke1 (26. g3 $11) 26... f4 $15 27. Bf2 {[#]} c6 (27... Na3 $1 $17 28. Nb1 Nc4) 28. Nc4 Bxc4 29. Bxc4+ Kg7 30. Bb6 $36 {[%mdl 2048] White is more active.} Rd7 (30... Rd6 $14) 31. Rd1 $16 Rxd1+ 32. Rxd1 ({Reject} 32. Kxd1 $6 Nxc3+ 33. Kc2 Nb5 $11) 32... Nxc3 {A mistake that costs the game.} (32... Be7 $16 {might work better.} 33. Rd7 Kf6) 33. Rd7+ $18 Kh8 $2 (33... Kf6 34. Bd8+ Rxd8 35. Rxd8 Bb4) 34. Bc7 {White is clearly winning.} Bg7 {[#]} (34... Re8 $142 35. Bd8 Bg7 36. Bxa6 Na4) 35. Rxg7 $1 {[%mdl 576] Remove Defender, Decoy} Kxg7 36. Bxe5+ {[%mdl 64] Double Attack} Kf8 37. Bxc3 Ke7 38. e5 {Weighted Error Value: White=0.11/Black=0.29} 1-0

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.18"]
[Round "1.21"]
[White "Ganguly, Surya Shekhar"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2625"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,138,37,10,21,12,43,7,1,-25,-23,-87,-76,-72,-88,-109,-118,-175,-166,-173,-188,-181,-177,-169,-184,-178,-122,-139,-144,-183,-180,-162,-167,-330,-333,-351,-353,-364,-338,-450,-463,-750,-549,-547,-532,-825,-811,-756,-33,-35,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,29986,29987,29987,29988,29988,29989,29989,29990,29992,29990,29991,29989,29991,29990,29990,29991,29993,29992,29992,29993,29993,29993,29994,29995,29995,29996,29996,29993,29993,29989,29989,29989,29992,0,0,0,0]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. a4 Nf6 6. h3 O-O {B06: Modern Defence.} 7. g4 Nc6 8. d5 {[#]} Nb4 $146 ({Predecessor:} 8... Nb8 9. Bg2 Nbd7 10. Nge2 e5 11. Ng3 b6 12. O-O a5 13. Qd2 Nc5 14. Bg5 Qe8 {0-1 (30) Barle,J (2263)-Babic,M (1685) Ljubljana 2018}) 9. a5 e6 10. Ra4 (10. Bg2 $11 {keeps the balance.}) 10... c5 $17 11. dxc6 Nxc6 12. Bg2 Nxa5 13. e5 (13. Ra2 $17) 13... Ne8 $1 $19 14. exd6 {[#]} Bd7 $1 15. Rb4 b5 16. Bxa8 Qxa8 17. f3 {[#]} Nc4 (17... Qc6 $1 $19 18. Bd4 e5) 18. Rxc4 bxc4 19. Bg5 {intending Be7.} f5 20. Be7 Rf7 21. Rh2 $2 (21. g5 {was worth a try.}) 21... Qb8 22. Nge2 Qxb2 23. Qd2 fxg4 24. hxg4 Rxf3 25. Rf2 (25. Nd1 $142 c3 26. Qc1) 25... Bxc3 26. Nxc3 Qxc3 27. Rxf3 Qxf3 28. Qd4 Qd5 $2 (28... c3 $19 {( -> ...Bb5)} 29. Qd3 Qh1+ 30. Qf1 Qe4+ 31. Qe2 Qf4) 29. Qf4 $15 {[%csl Ge7][%cal Rf4f8]} h6 (29... Nf6 $5 30. Bxf6 g5 31. Bxg5 e5 $15) 30. Qf8+ $1 Kh7 31. Qf7+ Kh8 32. Qf8+ Kh7 33. Qf7+ Kh8 34. Bf6+ Nxf6 35. Qxf6+ Kg8 36. Qd8+ Kf7 37. Qxd7+ $11 {[%mdl 4096] Endgame KQ-KQ} Kf6 {Strongly threatening ...Ke5.} 38. Qe7+ Ke5 {White must now prevent ...Qe4+.} 39. d7 Qe4+ 40. Kd2 Qd4+ 41. Ke2 Qe4+ 42. Kf2 Qf4+ 43. Ke1 Qe3+ 44. Kd1 Qf3+ 45. Kc1 Qe3+ 46. Kb1 Qb6+ 47. Ka2 (47. Kc1 c3 $17) 47... Qa5+ 48. Kb2 Qb6+ 49. Kc3 ({Reject} 49. Kc1 c3 $17) 49... Qd4+ {[%mdl 64] Double Attack} 50. Kb4 Qb6+ 51. Kxc4 Qc6+ {[%mdl 8192]} (51... Qb5+ $11 52. Kc3 Qc6+ 53. Kb4 Qb6+ 54. Kc4 Qb5+ 55. Kc3 Qc6+ 56. Kb4 Qb6+ 57. Ka4 Qb5+ 58. Ka3 Qa5+ 59. Kb2 Qb6+ 60. Kc1 Qg1+ 61. Kd2 Qg2+ 62. Ke3 Qe4+ 63. Kf2 Qd4+ 64. Kg3 Qg1+ 65. Kf3 (65. Kh3 Qh1+ 66. Kg3 Qg1+ 67. Kf3 Qd1+ 68. Kf2 Qxc2+ 69. Kg3 Qc3+ 70. Kh4 Qe1+ 71. Kh3 Qc3+ 72. Kh4 Qe1+ 73. Kh3 Qc3+ 74. Kh4 $11) 65... Qd1+ 66. Kg2 (66. Kg3 Qg1+ 67. Kh3 Qh1+ 68. Kg3 Qg1+ $11) 66... Qd2+ 67. Kh3 Qe3+ 68. Kh2 (68. Kh4 Qf2+ 69. Kh3 Qe3+ 70. Kh4 Qf2+ 71. Kh3 Qe3+ $11) 68... Qf2+ 69. Kh1 Qf3+ 70. Kg1 (70. Kh2 Qf2+ 71. Kh3 Qe3+ 72. Kh4 Qf2+ 73. Kh3 Qe3+ $11) 70... Qe3+ 71. Kh2 Qf2+ 72. Kh3 Qe3+ 73. Kh4 Qf2+ 74. Kh3 Qe3+) 52. Qc5+ {[%mdl 64] Double Attack} Qd5+ 53. Qxd5+ exd5+ {KP-KP} 54. Kc5 Kf4 55. d8=Q Kxg4 56. Qh8 g5 57. Qg7 h5 58. Qh6 h4 59. Kxd5 h3 60. Qe6+ Kg3 61. Qe3+ Kh4 62. Qe2 g4 63. Qf2+ g3 64. Qf6+ Kh5 65. Qh8+ Kg4 66. Qg7+ Kf3 67. Qf7+ Kg2 68. Qh5 $2 (68. Ke4 {mates} Kh2 69. Qf4 Kg2 70. Qg4 Kf2 71. Qf3+ Kg1 72. Qxg3+ {[%mdl 64] Double Attack} Kh1 73. Kf3 a5 74. Qxh3+ Kg1 75. Qg2#) 68... h2 $1 {[%cal Rh2h1]} 69. Qe2+ {[%mdl 64] Double Attack} Kg1 {[%mdl 32768] Never resign too early!  Weighted Error Value: White=0.26/Black=0.33. Sensor Board Error (Ke4/e5)?} 0-1

[Event "Magnus Carlsen vs Challengers"]
[Site "Chess24"]
[Date "2021.04.19"]
[Round "1.22"]
[White "Kogan, Arthur"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2501"]
[BlackElo "2847"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2021.04.19"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,76,42,33,33,32,60,-4,29,31,68,70,69,62,66,65,93,35,54,11,8,-43,37,15,43,21,27,44,12,22,36,0,-23,-272,-298,-352,-295,-298,-292,-292,-291,-489,-420,-646,-646,-653,-647,-802,-801,-786,-778,-839,-831,-850,-837,-852,-847,-1118,-945,-918,-930,-1084,-1052]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Qc2 bxc4 5. e4 d6 6. Nf3 g6 7. Bxc4 Bg7 8. O-O O-O 9. Re1 Nbd7 {A57: Benko/Volga Gambit.} 10. Nc3 Rb8 11. Bf4 (11. h3 $14) 11... Nb6 {The position is equal.} 12. Bf1 Ne8 13. h3 Nc7 14. Rad1 {[#]} Bb7 $146 ({Predecessor:} 14... Ba6 15. Bxa6 Nxa6 16. e5 Nb4 17. Qe2 c4 18. Bg5 f6 19. exf6 exf6 20. Be3 Nd3 {1-0 (32) Taher,Y (2295)-Harahap,Y (2312) Yogyakarta 2016}) 15. b3 Qd7 16. a4 (16. Qd2 $16) 16... Ba6 17. Be2 Bxe2 18. Rxe2 (18. Nxe2 $11 Qc8 19. e5) 18... Na6 ({Better is} 18... c4 $15 19. bxc4 Nxc4) 19. Qd2 Na8 20. Bh6 Rxb3 21. Bxg7 Kxg7 22. e5 N8c7 23. e6 (23. Ng5 $14 dxe5 24. Rxe5) 23... fxe6 $11 24. Ng5 $2 {White does not recover from this.} (24. dxe6 $11 {and White has nothing to worry.} Qc6 25. Re4) 24... e5 $19 25. Re4 h6 26. Nf3 Qf5 27. Rg4 {Now Nh4 and White clings on.} Nb4 28. Ne4 $2 (28. Nh4 Qc2 29. Rxg6+ Kf7 30. Qxc2 Nxc2 31. Ne4) 28... Rd3 29. Nh4 {[#]} (29. Qe2 $142 Rxf3 30. Qxf3 Qxf3 31. gxf3) 29... Qxg4 $1 {[%mdl 512] Black is clearly winning.} 30. hxg4 {Black must now prevent Qc1.} Rxd2 31. Rxd2 Ncxd5 32. Nf3 c4 33. g5 h5 34. Rd1 c3 35. Rc1 c2 36. Ned2 Rc8 {Strongly threatening ...Nd3.} 37. Ne1 Nc3 {[#] And now ...Ne2+ would win.} 38. Nb3 Ne2+ {[%mdl 64] Double Attack.  Weighted Error Value: White=0.63/Black=0.25} 0-1

