Event: AAG S50 W50 S65
Site: idChess.com
Date: 2025-07-07
White: Altan-Och, Genden
WhiteTitle: FM
WhiteElo: 2198
Black: Cao, Sang
BlackTitle: GM
BlackElo: 2339
Result: *
ECO: E43
Opening: Nimzo-Indian Defense: St. Petersburg Variation
Variant: Standard

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. Nf3 Bb7 6. e3 Ne4 7. Bd3 Bxc3+ 8. bxc3 f5 9. O-O O-O 10. a4 a5 11. Rb1 d6 12. Nd2 Nxd2 13. Bxd2 Nd7 14. e4 f4 15. Rfe1 e5 16. c5 dxc5 17. Bc1 Rf6 18. Ba3 Bc6 19. Rbd1 Qe7 20. Bc4+ Kh8 21. Bd5 Re8 *