i-want-to-become1000 vs AstroFiziks

How it swung

The one slip

19.bxc3 cost 1.9 pawns. ♗xc3 would have held it.

There was a bishop free here. 19.♗xc3 was the move.

The score

1. 1. e4 d6
2. 2. d4 Nf6
3. 3. Nc3 g6
4. 4. Bg5 Bg7
5. 5. Nf3 Nc6
6. 6. Bb5 O-O
7. 7. Bxc6 bxc6
8. 8. e5 dxe5
9. 9. dxe5 Qxd1+
10. 10. Rxd1 Nd7
11. 11. Bxe7 Re8
12. 12. Bb4 Nxe5
13. 13. O-O Nxf3+
14. 14. gxf3 Ba6
15. 15. Rfe1 Rxe1+
16. 16. Rxe1 Bd4
17. 17. Re7 Rd8
18. 18. Rxc7 Bxc3
19. 19. bxc3 Rd1+
20. 20. Kg2 Bf1+
21. 21. Kg3 Bc4
22. 22. Rxc6 Rd2
23. 23. Rxc4 Rxc2
24. 24. a3 Rd2
25. 25. Rc7 Rd5
26. 26. Rxa7 Rg5+
27. 27. Kh3 h6
28. 28. c4 Rh5+
29. 29. Kg3 Rg5+
30. 30. Kf4 Rf5+
31. 31. Ke3 Re5+
32. 32. Kf4 Rf5+
33. 33. Ke3 Re5+
34. 34. Kd4 Rf5
35. 35. c5 Rf4+
36. 36. Kd5 Rf5+
37. 37. Kd6 Rf6+
38. 38. Kd5 Rf5+
39. 39. Ke4 Kg7
40. 40. Bc3+ Kh7
41. 41. c6 Re5+
42. 42. Kxe5 Kg7
43. 43. c7 h5
44. 44. c8=Q Kh6
45. 45. Bd2+ g5
46. 46. Rxf7 Kg6
47. 47. Qe6#