病史

丁立人 (Dīng Lìrén) – 赵骏 (Zhào Jùn)
5th International Tournament; 儋州 (Dānzhōu), June 25, 2014
King’s Indian Defence E91

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 Bg4 6. Be2 0-0 7. 0-0 Nfd7 8. Be3 Nc6 9. d5 Bxf3 10. Bxf3 Na5 11. Be2 Bxc3 12. bxc3 e5 13. dxe6 fxe6 14. c5. The sacrifice of this Pawn enables White to considerably strenghten his positional initiative. If 14. Bh6 Rf7 15. f4 (Sbarra – L. Pantaleoni, game by correspondence, 1992) then 15. ... Nf6 16. e5 Ne4 17. Qd4 Nc5! (L. Pantaleoni). If instead 14. f4 may follow 14. ... Qe7 15. Qa4 b6 16. Rae1 Nb7 17. Bf3 Nbc5 18. Qc2 Rae8 with slight advantage to Black, Cuellar Gacharna – Tal, Interzonal Tournament, Leningrad 1973. 14. ... Nxc5 15. e5. Consistent play. On 15. Bxc5 dxc5 16. Qa4 b6 17. Rad1 Qf6 I’d prefer Black, Zielinska – Brustman, Augustow 1996. 15. ... b6 16. Bg4!? Possibly a novelty. No better is 16. exd6 cxd6 17. Bf3 Rc8 18. Re1 Re8 with roughly even play, P. Pelts – I. V. Ivanov, Chicago 1991. 16. ... Nab7 17. exd6 cxd6 18. Qd2 Qf6 19. Bg5 Qf7 20. Bh6 Rfe8 21. c4 Ne4 22. Qd4 Nf6 23. Bf3 e5 24. Qh4 e4 25. Be2 Nc5 26. f4 e3? Returning the Pawn for no reason. The proper play to White’s last move was 26. ... exf3 27. Rxf3 (or 27. Bxf3 Nfe4! Δ 28. Bxe4 Rxe4!) 27. ... Rxe2! 28. Rxf6 Qe7 29. Qd4 Qe5 with a slight edge for Black.

27. f5! Well played; White takes immediate advantage of his adversary’s slip. 27. ... Nce4 28. fxg6 Qxg6 29. Bxe3 Re7 30. Bd4. Black is completely tied up. 30. ... Rf8 31. Rae1 Rg7 32. g3! The simplest move and also the correct one. As they say, Black is “overloaded”. 32. ... Qg5. Preventing the deadly threat of Be2-d3, but by now Black is dommed. 33. Qxg5 Rxg5 34. Rf4 Rg7 35. Bf3 Ng5 36. Bg2 Rg6 37. h4 1 : 0.