[Event "XXXIII Pan-American Youth U18 Female"] [Site "McCormick Convention Center C"] [Date "2023.08.16"] [Round "3.31"] [White "Anni Guo"] [Black "Sahana Aravindakshan"] [Result "0-1"] [WhiteElo "1930"] [WhiteTeam "Canada"] [BlackElo "2004"] [BlackTeam "USA"] [Annotator "Lang,JJ"] [Variant "Standard"] [ECO "B32"] [Opening "Sicilian Defense: Kalashnikov Variation"] [Source "https://lichess.org/study/NdPr3HIs/fyYXYxZU"] [Orientation "white"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 Be7 8. Be3 Nf6 9. Nc4 b5 10. Nb6 Rb8 11. Nxc8 Qxc8 12. f3!? { This move is almost "automatic" for many Open Sicilian players with the white pieces, but it shows a lack of familiarity with Sveshnikov/Kalashnikov structures here. Black presumably wants ... f7-f5, after which White neither wants a pawn on f3 after e4xf5 nor would she want an isolated e4 pawn. Thus, it is better to play Bf1-d3 and prepare possible e4xf5 ideas. } 12... O-O 13. Be2 Rd8 14. O-O?! (14. Nd5! Nxd5 15. exd5 Nd4 16. Bd3 { While White is down two tempi (f2-f3 and Bf1-e2-d3), this position is still close to acceptable. Also note that the scary-seeming } 16... f5 { gets Black into hot water after } 17. c3 { when her knight is trapped, forcing } 17... f4 18. cxd4 fxe3 19. Rc1 Qd7 20. dxe5 dxe5 21. Be4 { when White's bishop is for choice. }) 14... d5! 15. Nxd5 Nxd5 16. exd5 Nb4 17. Bd3 Rxd5 18. Qe2 Nxd3 19. cxd3 Qf5 20. Rfd1 Rbd8 21. Rac1 Rxd3 22. Rxd3 Rxd3 23. Rd1 Rxd1+ 24. Qxd1 Qe6 { Black has played flawlessly since executing the thematic ... d6-d5 break, and is a pawn to the good with same-colored bishops in a winnable endgame. } 25. b3 Qc6 26. Qd2 e4! { If White trades, then Black's extra pawn is further away from the queenside, making it easier for Black to play on both sides of the board. But if White pushes, then Black's e-pawn is passed. } 27. fxe4 Qxe4 28. Kf2 Qc6 29. Ke1 Bf6 30. Kd1 Qc7 31. h3 Qd8 { Same-colored bishop endgames are rather easy to win with an extra pawn, especially compared to queen-versus-queen or the dreaded opposite-colored bishop endgames. } 32. Bc5 Bg5 33. Be3 { This only accelerates things, as the pure pawn ending is the clearest win available. } 33... Qxd2+ 34. Kxd2 Bxe3+ 35. Kxe3 f5 36. Kd4 Kf7 37. a4 bxa4 38. bxa4 g5 39. a5 g4 40. hxg4 fxg4 41. Ke4 Kg6 42. Kf4 h5 43. g3 Kf6 44. Ke3 Ke5 45. Kd3 Kd5 46. Ke3 Kc5 47. Kf4 Kb5 48. Kg5 Kxa5 49. Kxh5 Kb4 50. Kxg4 a5 { Black Won } 0-1