[Event "Opening Theory #9"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Grunfeld"] [Black "?"] [Result "*"] [ECO "D85"] [Annotator "KS"] [PlyCount "21"] [SourceVersionDate "2022.10.10"] {[%evp 0,13,19,31,14,-14,43,38,70,63,59,26,45,26,26,31]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 $1 {a critical variation against the Grunfeld} c5 $1 {all the nerdy Grunfeld players that spend hours analyzing their favorite opening play 5...c5!} (5... Nb6 $5 {a line which is out of fashion lately} 6. h4 $1 {No surprise! Modern NN engines love pushing the rook's pawn!} (6. e3 Bg7 7. f4 $5 {was the famous idea that Peter Svidler played against Boris Gelfand in the London Candidates 2013} O-O (7... c5 $1 {today, 6...c5! is considered fine for Black}) 8. Nf3 Bg4 9. h3 Bxf3 10. Qxf3 c6 11. h4 N8d7 12. h5 e6 13. hxg6 hxg6 14. e4 f5 15. g4 Nf6 16. gxf5 exf5 17. e5 Ng4 18. d5 cxd5 19. O-O-O d4 20. Nb5 Qd5 21. Qh3 Rfc8+ 22. Kb1 Rc6 23. e6 Qxe6 24. Bg2 Nf2 25. Qh7+ Kf7 26. Rde1 Qf6 27. Bxc6 bxc6 28. Nc7 Rh8 29. Qxh8 Bxh8 30. Ne8 Nxh1 31. Nxf6 Ng3 32. Nh7 Ne4 33. Ng5+ Nxg5 34. fxg5 c5 35. Rc1 Nd7 {1/2-1/2 (35) Svidler,P (2747)-Gelfand,B (2740) London ENG 2013}) 6... h5 7. Nf3 $14) (5... Bg7 { is the main recommendation in books and courses today.} 6. e4 Nxc3 7. Bxc3 Nc6 $5 {a modern trend} (7... O-O 8. Qd2 c5 {the old main line} (8... Nc6 {Ragger, in his recent Chessbase DVD, proposed this move} 9. Nf3 Bg4 10. Ne5 $1 $14 { now, I like for White the rare move}) (8... Nd7 $5 {Peter Svidler's suggestion in his Chessable Course} 9. h4 $1 c5 10. d5 Nf6 11. f3 $14 {Black is not dead, but I think that White is a bit better.} e5 12. g4 Ne8 13. h5 Nd6 14. hxg6 fxg6 15. Qh2 h6 16. Bxe5 Qa5+ 17. Kd1 Nxe4 18. Bxg7 Kxg7 19. Qxh6+ Kf7 20. fxe4 Qa4+ 21. Kc1 Qxe4 22. Ne2 Bxg4 23. Qf4+ Qxf4+ 24. Nxf4 g5 {1-0 (24) Tristan,L (2535) -Savchenko,B (2564) chess.com INT 2020}) 9. d5 Bxc3 (9... e6 10. Bc4 $14) 10. bxc3 {Anand has played two impressive games in this position} e6 (10... Qd6 11. f4 e6 12. Nf3 exd5 13. Bc4 Be6 14. O-O d4 15. f5 Bxc4 16. e5 Qd7 17. f6 { 1-0 (17) Anand,V (2753)-Nepomniachtchi,I (2784) chess.com INT 2020}) 11. d6 e5 12. h4 Be6 13. Nh3 Qxh4 14. O-O-O Qxe4 15. Bd3 Qa4 16. Ng5 Qxa2 17. Qe3 Qa3+ 18. Kd2 Qb2+ 19. Bc2 Bf5 20. Rc1 Rd8 21. Nxf7 Kxf7 22. Qxe5 Rxd6+ 23. Qxd6 Nc6 24. Rxh7+ Kg8 25. Rd7 Re8 26. Qf6 Bxd7 27. Qxg6+ Kf8 28. Qf6+ Kg8 29. Rh1 Re2+ 30. Kxe2 Nd4+ 31. cxd4 Qxc2+ 32. Ke3 Qc3+ 33. Kf4 Qxd4+ 34. Qxd4 cxd4 35. Ke4 a5 36. Kxd4 a4 37. Kc3 b5 38. Kb4 Kf7 39. Rh7+ Ke6 40. g4 Be8 41. f4 Kf6 42. Rh6+ Kg7 43. g5 Bg6 44. Rh3 Bf5 45. Re3 {1-0 (45) Anand,V (2783) -Hammer,J (2608) Stavanger 2013}) 8. Bb5 {[%CAl Rb5e8]} O-O {[%csl Rd4]} 9. Ne2 Qd6 10. Qd2 Rd8 11. Rd1 a5 {This is the main line} 12. h4 $1 $14 e5 13. d5 Qc5 14. a4 Nb4 15. Rc1 Qd6 16. Bxb4 axb4 17. Qe3 Bd7 18. Bxd7 Rxd7 19. b3 f5 20. O-O Rf8 21. f3 Bf6 22. h5 Be7 23. Rfd1 Qf6 24. hxg6 hxg6 25. g3 Bd6 26. Kg2 Rdf7 27. Rf1 f4 28. gxf4 exf4 29. Qd4 Qg5+ 30. Kf2 Be5 31. Qxb4 Qh4+ 32. Kg2 Qg5+ 33. Kf2 Qh4+ 34. Kg2 Qg5+ 35. Kf2 Bd6 36. Qc3 Qh4+ 37. Kg2 Qg5+ 38. Kf2 Qh4+ 39. Kg2 Qg5+ 40. Kf2 Be5 41. Qc4 Qh4+ $11 {Putrenko- Borisovsky, St Petersburg 2021 }) 6. Rc1 $1 {the weird world of correspondence chess, the nerds are analysing} Nc6 (6... Nxc3 7. Bxc3 Bh6 8. e3 cxd4 9. Bb5+ Nc6 10. Qxd4 Qxd4 11. Bxd4 O-O 12. Bxc6 bxc6 13. h4 $1 {we have followed the first line of the engines. This was tested in Howell- Grandelius,London 2022} Be6 14. h5 g5 15. Ne2 Bxa2 16. Rxc6 Be6 17. O-O Rfc8 18. Rxc8+ Rxc8 19. Bxa7 Rc2 20. Nd4 Rxb2 21. Bc5 Bf8 22. Nxe6 fxe6 23. Rc1 Kf7 24. Bd4 Rb5 25. Rc7 g4 26. Bc5 Ke8 27. Rc8+ Kd7 28. Rxf8 Rxc5 29. Rg8 Rxh5 30. Rxg4 Ke8 31. Rf4 Rf5 32. Rh4 h5 33. Ra4 Kf7 34. Ra2 Rb5 35. Kh2 Rb4 36. Ra5 Rh4+ 37. Kg1 Kg6 38. f3 Kf6 39. e4 Rf4 40. Rxh5 Kg6 41. Re5 Kf7 42. Rh5 Kg6 43. Rh8 Kg7 44. Re8 Kf7 45. Rh8 Kg7 46. Ra8 Rh4 47. g4 e5 48. Kg2 Rh7 49. Ra5 Kf6 50. Ra1 Rh8 51. Rh1 Ra8 52. Rh6+ Kf7 53. Kg3 Ra5 54. Rh7+ Kf6 55. Rh6+ Kf7 56. Rh7+ Kf6 57. Rh5 Kg6 58. Kh4 Ra3 59. Rg5+ Kf6 60. Rf5+ Kg6 61. Kg3 Ra5 62. Rh5 Rb5 63. Rh1 Ra5 64. Rd1 Ra8 65. Rb1 Rh8 66. Kg2 Ra8 67. Rc1 Rb8 68. Ra1 Rc8 69. Ra6+ Kf7 70. Kg3 Rh8 71. Kg2 Rb8 72. Rh6 Rb5 73. Kf2 Rc5 74. g5 Rc1 75. Kg2 Ra1 76. Kh2 Rf1 77. Kg2 Ra1 78. Kh3 Rg1 79. Kh4 Rg2 80. Kh5 Rh2+ 81. Kg4 Rg2+ 82. Kf5 Rg3 83. Rh7+ Kf8 84. Kg6 Ke8 85. Rh8+ Kd7 86. Rf8 { 1-0 (86) Howell,D (2646)-Grandelius,N (2672) London ENG 2022}) 7. dxc5 Bg7 8. e4 $5 Nxc3 (8... Ndb4 $5 9. Nf3 O-O 10. a3 Nd3+ 11. Bxd3 Qxd3 12. Qe2 Qxe2+ 13. Kxe2 Be6 14. Nd5 Bxb2 15. Rc2 Bxa3 16. Ra1 f5 17. Rxa3 fxe4 18. Nxe7+ Nxe7 19. Nd4 Bd7 20. Rb2 Nc6 21. Be3 Nxd4+ 22. Bxd4 Bc6 23. Rba2 a6 24. Ke3 Rad8 25. Rd2 Rd5 26. Ke2 Rfd8 27. Be3 Rd3 28. Ra1 Kf7 29. g3 Rxd2+ 30. Bxd2 Bb5+ 31. Ke1 Rd3 32. Rb1 Ke6 33. Rb4 Bc6 34. Rb2 Kd5 {0-1 (34) Martinovic,S (2548)-Carlsen,M (2847) Krasnaya Polyana RUS 2021}) 9. Bxc3 Qxd1+ 10. Kxd1 O-O 11. Bc4 $14 { [%CAl Gg1e2] Nikos Ntirlis} *