thanekrios21 vs AmericanAquarium

How it swung

The one slip

26.♖xf3 cost 8.7 pawns. ♖ae1 would have held it.

That walks into 26...♗d5: the queen on b7 and the rook on f3 are both attacked at once.

The point: 26...♗g7 27.d5 ♖hd8 28.dxe6

The score

1. 1. e4 Nc6
2. 2. Nf3 e5
3. 3. Bc4 h6
4. 4. Bxf7+ Kxf7
5. 5. Nxe5+ Nxe5
6. 6. Qh5+ Ng6
7. 7. O-O Qg5
8. 8. Qf3+ Nf4
9. 9. Qb3+ d5
10. 10. g3 Nh3+
11. 11. Kh1 Be6
12. 12. d4 Qg4
13. 13. f3 Qh5
14. 14. Qxb7 Rc8
15. 15. Qc6 Nf6
16. 16. e5 Nd7
17. 17. Nd2 Ng5
18. 18. f4 Bh3
19. 19. Qxd5+ Be6
20. 20. fxg5+ Ke7
21. 21. Qb7 hxg5
22. 22. Nf3 g4
23. 23. Bg5+ Nf6
24. 24. exf6+ gxf6
25. 25. Bh4 gxf3
26. 26. Rxf3 Bd5
27. 27. Re1+ Kf7
28. 28. Qxc8 Bxf3+
29. 29. Kg1 Rg8
30. 30. Qe6+ Kg7
31. 31. Bxf6+ Kh7
32. 32. Qd7+ Kh6
33. 33. Re6 Rxg3+
34. 34. hxg3 Qh1+
35. 35. Kf2 Qg2+
36. 36. Ke3 Qe2+
37. 37. Kf4 Qd2+
38. 38. Kxf3 Qd1+
39. 39. Kf4 Qd2+
40. 40. Re3 Qf2+
41. 41. Ke4 Qxc2+
42. 42. Rd3 Qg2+
43. 43. Kf4 Bd6+
44. 44. Be5 Qf2+
45. 45. Ke4 Qg2+
46. 46. Ke3 Qg1+
47. 47. Kd2 Bb4+
48. 48. Kc2 Qf2+
49. 49. Kb3 Qe2
50. 50. Qg7+ Kh5
51. 51. g4+ Qxg4
52. 52. Qh7+ Kg5
53. 53. Rg3 Qxg3+
54. 54. Bxg3 Kg4
55. 55. Qxc7 Bd2
56. 56. d5 Kf3
57. 57. d6 Kxg3
58. 58. d7+ Bf4
59. 59. Qc3+ Kg4
60. 60. d8=Q a6
61. 61. Qg7+ Kf3
62. 62. Qd3+ Be3
63. 63. Qf6+ Kg2
64. 64. Qdg6+ Kh3
65. 65. Qh8+ Bh6
66. 66. Qhxh6#