Heidenfeld, Mark vs Marks, Jon

0-1 · Pirc Defense (B00) · 2026-08-23 · ratings 2298 / 1954

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Moves

[White "Heidenfeld, Mark"]
[Black "Marks, Jon"]
[Result "0-1"]
[ECO "B00"]
[Opening "Pirc Defense"]
[Date "2026-08-23"]

1. e4 1... d6 2. d4 2... Nf6 3. Bd3 3... g6 4. c3 4... Bg7 5. f4 5... O-O 6. Nf3 6... c5 7. O-O 7... cxd4 8. cxd4 8... Nc6 9. Kh1 9... Bg4 10. d5 10... Nb4 11. Nc3 11... Nxd3 12. Qxd3 12... Rc8 13. Be3 13... a6 14. Bd4 14... b5 15. Rac1?! 15... Rc4?! 16. a4?! 16... Bxf3 17. gxf3 17... Qd7?! 18. axb5 18... axb5 19. b3 19... Rcc8 20. Qxb5?? 20... Qh3 21. Qe2?? 21... Rb8?? 22. Nb5?? 22... Nh5 23. Rg1 23... Nxf4 24. Qe3 24... Rxb5 25. Bxg7 25... Kxg7 26. Qxf4 26... Rxb3 27. Rg3 27... Qh5 28. Rc2 28... Rfb8 29. Rf2?! 29... Rb1+ 30. Kg2 30... R8b2 31. Qe3? 31... Qe5 32. f4 32... Rxf2+ 33. Kxf2 33... Qb2+ 34. Kf3? 34... Qxh2? 35. Qc3+? 35... f6 36. Qd3?! 36... Rb2 37. Qe3 37... Qh1+

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