[Event "Round 7: M. Amin Tabatabaei - Nikita Vit"] [Site "lichess.org"] [Date "2023.12.08"] [White "M. Amin Tabatabaei"] [Black "Nikita Vitiugov"] [Result "1-0"] [WhiteElo "2692"] [BlackElo "2704"] [Annotator "https://lichess.org/@/Shohreh_b"] [Variant "Standard"] [ECO "B93"] [Opening "Sicilian Defense: Najdorf Variation, Amsterdam Variation"] [Source "https://lichess.org/study/BR7gZIqE/EoVCbyBM"] [Orientation "white"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf3 Nbd7 8. a4 Qc7 9. g4!? { This interesting new move was in fact played in a recent game at Wijk Aan Zee. } 9... d5! $146 { New move but a principled reaction: Meeting the flank activity in the center. Black starts a forced sequence of moves. } (9... exf4 10. g5 Nh5 11. Nd5 $14 { L'Ami,E (2627)-Yilmaz,M (2609) Wijk aan Zee 2023 }) 10. g5 d4 11. gxf6 dxc3 12. fxg7 Bxg7 13. f5 cxb2 14. Bxb2 Qb6 15. Ba3 Qe3+ 16. Be2 Qxe4 { Black lost some time to collect e4 and he's behind in development. A double edged position with both kings look vulnerable in the center, one mistake might cost dearly. } 17. Rg1 Bf8 18. Qd2 { Even though new move was seen at the 9th move White blitzed out all his moves up to this point! } 18... Nc5?? { According to Stockfish Black's position was fragile and now collapses. Knight is not stable on c5 and Black is severely underdeveloped. } (18... Nf6 19. Bxf8 Rxf8 { Stockfish tries to exchange and ease the defence. } { [%cal Gc8f5,Gf6d5] }) 19. Ng5! { [%csl Gh5,Gf7][%cal Ge2h5] } 19... Qh4+ 20. Rg3 { White has Qd5, Qe3 and Rd1 threats. } { [%cal Gd2d5,Ga1d1,Gd2e3] } 20... h6 { Only move to parry the threats but... } 21. Nxf7! Ne4 (21... Kxf7 22. Qd5+ { and white takes advantage of black's 18th move. }) 22. Qd5! { An important detail! } { [%cal Bd5e5] } 22... Nxg3 23. Qxe5+ Kxf7 24. hxg3! { [%cal Ge5h8,Gg3h4] } 24... Qh1+?! { Inaccuracy. Bb4+ was best. } (24... Bb4+ 25. Bxb4 Qxb4+ 26. c3 Qe7 27. Qxh8 Qe3 28. Qh7+ Kf8 29. Kf1 Qxg3 30. Qxh6+ Qg7 31. Qd6+) 25. Kf2 { [%cal Ge2c4,Ge2h5] } 25... Qc6 26. Bh5+ { Tabatabaei doesnt let black muddy the waters. } (26. Qxh8 { is better according to Stockfish. } 26... Bc5+ 27. Bxc5 Qxc5+ 28. Kg2 Qxf5 { but this is definitely more complicated. }) 26... Kg8 27. Bxf8 Rh7 28. Bg6 Rc7 29. Bxh6 Qc5+ (29... Qxc2+ 30. Kf3 Qc3+ (30... Rc3+ 31. Kg4 { [%cal Ge5g7,Ge5e8] }) 31. Qxc3 Rxc3+ 32. Kg4) 30. Qxc5 Rxc5 { [%cal Gc8f5] } 31. g4 Rxc2+ 32. Kg3 { After forced sequence of moves it's clear that White is winning. I leave rest of the moves to Stockfish's comments. } 32... Bd7 33. Re1! { [%cal Ge1e7] } 33... Rc6 34. Re7 Be8 35. Bh7+ (35. Bxe8? Rxh6) 35... Kh8 36. Bf4 Rc5 37. f6 Bxa4 38. Bg6 Rf8 39. g5? { Mistake. Bh6 was best. } (39. Bh6 Rg5 40. Bxg5 Kg8 41. Rg7+ Kh8 42. Rxb7 Bb3 43. Bh6 Rd8 44. Rh7+ Kg8 45. Re7 Kh8) 39... Rc3+ 40. Kf2 Bc2 41. Bxc2 Rxc2+ 42. Kg3 Rc5 43. Rxb7?! { Inaccuracy. Kg4 was best. } (43. Kg4 Rd5 44. Be5 Kg8 45. Kf5 Rc8 46. Rg7+ Kh8 47. Kg6 Rxe5 48. Rh7+ Kg8 49. f7+ Kf8) 43... Rb5 44. Ra7?! { Inaccuracy. Re7 was best. } (44. Re7) 44... Kg8?! { Inaccuracy. a5 was best. } (44... a5 45. Kg4 a4 46. Rxa4 Rf7 47. Ra6 Kh7 48. Kh5 Rf5 49. Be3 Rc7 50. Re6 Rd7 51. Bf4) 45. Rg7+ Kh8 46. Kg4 a5 47. Bd6 Rd8? { Checkmate is now unavoidable. Rg8 was best. } (47... Rg8 48. Rxg8+ Kxg8 49. g6 Rb7 50. Kf5 Ra7 51. Be7 Ra8 52. Kg5 a4 53. Kh6 Rf8 54. Bxf8) 48. Be7?? { Lost forced checkmate sequence. g6 was best. } (48. g6 Rb4+ 49. Kg5 Rb5+ 50. Kh6 Rxd6 51. Rh7+ Kg8 52. f7+ Kf8 53. Rh8+ Ke7 54. f8=Q+ Ke6) 48... Rc8 49. Kh5 Rg8?! { Inaccuracy. Rc6 was best. } (49... Rc6 50. f7 Rf5 51. Rg8+ Kh7 52. f8=Q Rxf8 53. Rxf8 Kg7 54. Ra8 Kf7 55. Bf6 Rb6 56. Ra7+) 50. Rg6 Rxg6 51. Kxg6 Rb6 52. Kh6 a4? { Checkmate is now unavoidable. Re6 was best. } (52... Re6 53. g6 Re1 54. f7 Rh1+ 55. Kg5 Rg1+ 56. Kh4 Rh1+ 57. Kg4 Rg1+ 58. Kh3 Rf1 59. f8=Q+) 53. g6 Rb1 54. f7 Rh1+ 55. Kg5 Rg1+ 56. Kh5 Rh1+ 57. Kg4 Rg1+ 58. Kh3 Rf1 59. Bf8 { [%cal Gg6g7] } 59... Rg1 60. Bc5 { 1-0 White wins. } { [%cal Gc5d4,Gf7f8] } 1-0