居文君 (Jū Wénjūn) – Peter Michalík
1st Prague International Chess Festival; Challengers Tournament; Prague, March 7, 2019
Sicilian Defence B31
1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6!? 10. 0-0! Qe7 11. Nh2 Nf8 12. f4 exf4 13. Bxf4 g5. It’s still theory, but it probably is a wrong theory. 14. Bg3 Ng6 15. e5! Be6. Of course, 15. ... Nxe5 16. Rae1 plays into White’s hands. If, instead, 15. ... 0-0 then 16. Rae1 Be6 17. Nf3 with a powerful bind: 17. ... Bd5 18. Nxd5 cxd5 19. c3 Rae8 20. d4 cxd4 21. Qxd4 Qe6
22. Qxa7 Ra8 23. Qf2 Rxa2 24. Kh1 f6 25. Nd4 Qb6 26. Qf3 Ne7
27. Nf5 Nxf5 28. Qxd5+ Kh8 29. Rxf5 Rxb2 30. exf6 Bxf6
31. Rxf6 1 : 0 M. Adams – Michiels, 29th SchachBundesliga, Baden-Baden 2009. 16. Rae1 0-0-0 17. Nf3! This move — very strong indeed — costed 居文君 (Jū Wénjūn) more than 40 minutes. 17. ... Kb8. 17. ... g4!? 18. hxg4 h5!? (18. ... Bxg4 19. Ne4 is even worse) 19. Qg5! is clearly advantageous for White. 18. Ne4 Ka8. 18. ... c4 19. d4 would not be appealing either. 19. Qc3!? Rd5 20. a3!? g4! White’s last two moves convinced Black that drastic countermeasures were imperative. 21. hxg4 Bxg4 22. Nf6 Bxf6 23. exf6 Qd7? This grave mistake loses the game almost immediately. Both 23. ... Qd8 24. Nd2 and 23. ... Qf8 23. Ne5 would have probably left White with somewhat the better chances, but nothing comparable to what is about to follow. 24. Nh4! Nxh4 25. Re7 Qc8 26. Bxh4 Be6 27. Re1 Rf5
28. R1xe6! fxe6 29. f7. Threatening Qc3xh8. 29. ... e5 30. Qxc5 b6 31. Qd6 1 : 0.
居文君 (Jū Wénjūn). Photo: Vladimir Jagr.
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