osmar-68 vs refat_salim

How it swung

The one slip

11.♗h4 cost 2.0 pawns. ♗xf6 would have held it.

The position went from winning to level.

The point: 11...gxf6 12.♗h5 c6 13.♘e3

The score

1. 1. d4 e5
2. 2. dxe5 Nc6
3. 3. Nf3 Qe7
4. 4. Nc3 Nxe5
5. 5. e4 d6
6. 6. Be2 Nf6
7. 7. O-O Bg4
8. 8. Bg5 Bxf3
9. 9. Bxf3 h6
10. 10. Nd5 Qd8
11. 11. Bh4 g5
12. 12. Bg3 Nxd5
13. 13. exd5 Bg7
14. 14. Bh5 O-O
15. 15. f4 gxf4
16. 16. Bxf4 f5
17. 17. c3 a5
18. 18. Qc2 Qh4
19. 19. Be2 Ng4
20. 20. h3 Ne5
21. 21. Bh2 Qg5
22. 22. Rf4 Ng6
23. 23. Rf2 Rae8
24. 24. Raf1 f4
25. 25. Bd3 Be5
26. 26. Bxg6 Re7
27. 27. Bd3 Rg7
28. 28. Qd2 Rgf7
29. 29. Qe2 h5
30. 30. Qe4 Rf5
31. 31. Bxf4 Bxf4
32. 32. Rxf4 R5f7
33. 33. Rxf7 Rxf7
34. 34. Qe8+