paratrooper1988 vs Liyi9

How it swung

The one slip

14...exd5 cost 1.2 pawns. ♕xd5 would have held it.

There was a knight free here. 14...♕xd5 was the move.

The point: 15.♕xd5 exd5 16.h5 d6

The score

1. 1. e4 c5
2. 2. Nc3 e6
3. 3. Bc4 a6
4. 4. Nf3 Nc6
5. 5. d4 cxd4
6. 6. Nxd4 Qc7
7. 7. Be3 Nf6
8. 8. Qf3 Nxd4
9. 9. Bxd4 Qxc4
10. 10. O-O-O Be7
11. 11. h4 b5
12. 12. g4 O-O
13. 13. e5 Nd5
14. 14. Nxd5 exd5
15. 15. g5 Bb7
16. 16. Qf4 Rac8
17. 17. c3 Qxa2
18. 18. Kc2 Qa4+
19. 19. Kc1 b4
20. 20. h5 Qa1+
21. 21. Kc2 Qa4+
22. 22. Kb1 b3
23. 23. Kc1 Qa1+
24. 24. Kd2 Qxb2+
25. 25. Kd3 Qc2+
26. 26. Ke3 Bc5
27. 27. h6 Bxd4+
28. 28. Qxd4 Rxc3+
29. 29. Kf4 Rc4
30. 30. hxg7 Rxd4+
31. 31. Rxd4 Qxf2+
32. 32. Kg4 Qxd4+
33. 33. Kf5 Qe4+
34. 34. Kf6 Qxh1
35. 35. gxf8=Q+ Kxf8
36. 36. e6 dxe6
37. 37. g6 hxg6
38. 38. Ke5 Qe4+
39. 39. Kf6 b2
40. 40. Kg5 b1=Q
41. 41. Kf6 Qf1+
42. 42. Kg5 Qef4#