Sierra Lopez, Yeray vs Ivanchuk, Vasyl

E44 Nimzo-Indian Defense: St. Petersburg Variation, Romanishin–Psakhis Variation

Sierra Lopez, Yeray 2012 Galtzen du
Ivanchuk, Vasyl 2623 Irabazten du
1. d4 1... Nf6 2. c4 2... e6 3. Nc3 3... Bb4 4. e3 4... b6 5. Ne2 5... c5 6. a3 6... Ba5 7. Rb1 7... Na6 8. Bd2 8... O-O 9. Ng3 9... Bb7 10. f3 10... cxd4 11. exd4 11... Bxc3 12. Bxc3 12... d5 13. cxd5 13... Nxd5 14. Bd3 14... Nac7 15. O-O 15... Ne3 16. Qe2 16... Nxf1 17. Rxf1 17... Rc8 18. Bb1 18... Ba6 19. Qc2 19... g6 20. Re1 20... Nd5 21. Qa4 21... Nxc3 22. bxc3 22... Bc4 23. Ne4 23... Bd5 24. Bd3 24... Bxe4 25. Bxe4 25... Rxc3 26. Qxa7 26... Qxd4+ 27. Kh1 27... Rfc8 28. h3 28... Rc1 29. Rxc1 29... Rxc1+ 30. Kh2 30... Qd6+ 31. g3 31... Qd2#