unknown12324 vs sokeransky

How it swung

The one slip

35.♔f1 cost 6.3 pawns. ♔e2 would have held it.

That walks into 35...♕xf3+: the king on f1 and the rook on h1 are both attacked at once.

The point: 35...♕c2+ 36.♔e3 ♕c3+ 37.♔e4

The score

1. 1. e4 d6
2. 2. d4 c6
3. 3. Nc3 g6
4. 4. h4 Bg7
5. 5. h5 Qb6
6. 6. Nf3 Bg4
7. 7. hxg6 fxg6
8. 8. Na4 Qa5+
9. 9. c3 b5
10. 10. Be2 Qxa4
11. 11. b3 Qa6
12. 12. Ng5 Bxe2
13. 13. Qxe2 Qc8
14. 14. Be3 h5
15. 15. O-O-O Qg4
16. 16. f3 Qd7
17. 17. g4 Nf6
18. 18. e5 Nd5
19. 19. Qd3 Rg8
20. 20. Qxg6+ Kd8
21. 21. Ne6+ Kc8
22. 22. Nxg7 Nxe3
23. 23. Rde1 Nd5
24. 24. gxh5 Nf4
25. 25. Qf7 Qd8
26. 26. Qxf4 Rxg7
27. 27. exd6 Qxd6
28. 28. Qf8+ Qd8
29. 29. Qxg7 Qa5
30. 30. Qf8+ Kc7
31. 31. Rxe7+ Nd7
32. 32. Qxa8 Qxc3+
33. 33. Kd1 Qd3+
34. 34. Ke1 Qc3+
35. 35. Kf1 Qxf3+
36. 36. Kg1 Qg4+
37. 37. Kf2 Qf5+
38. 38. Ke3 Qg5+
39. 39. Kd3 Qxe7
40. 40. Qxa7+ Kd6
41. 41. Qa3+ c5
42. 42. dxc5+ Nxc5+
43. 43. Kc2