ryspi82 vs Lashi12

How it swung

The one slip

4.g3 cost 5.4 pawns. ♗d3 would have held it.

That walks into 4...♕xe4+: the king on e1 and the rook on h1 are both attacked at once.

The point: 4...d5 5.♘f3 ♕e7 6.O-O

The score

1. 1. e4 e6
2. 2. d4 Qh4
3. 3. Nc3 Bb4
4. 4. g3 Qxe4+
5. 5. Ne2 Qxh1
6. 6. a3 Bxc3+
7. 7. bxc3 Qxh2
8. 8. Bf4 d6
9. 9. Qd3 Qh5
10. 10. Bg2 Qg6
11. 11. Qxg6 hxg6
12. 12. O-O-O Rh2
13. 13. Rg1 Bd7
14. 14. g4 Bc6
15. 15. Bxh2 Bxg2
16. 16. Rxg2 Nf6
17. 17. g5 Nd5
18. 18. c4 Ne7
19. 19. c5 Nf5
20. 20. Nf4 dxc5
21. 21. d5 e5
22. 22. Nd3 Nh4
23. 23. Rg4 Nf3
24. 24. Nxc5 Nxh2
25. 25. Re4 Nf3
26. 26. Nxb7 Nxg5
27. 27. Rxe5+ Ne6
28. 28. dxe6 fxe6
29. 29. Rxe6+ Kf7
30. 30. Re3 Nc6
31. 31. Nc5 Rh8
32. 32. c4 Na5
33. 33. Rf3+ Ke7
34. 34. Re3+ Kf6
35. 35. Nd7+ Kf5
36. 36. Re5+ Kf4
37. 37. Rxa5 Kf3
38. 38. Ne5+ Kxf2
39. 39. Nd3+ Ke3
40. 40. Kc2 Rh2+
41. 41. Kc3 Rg2
42. 42. Re5+ Kf3
43. 43. Ne1+ Kg3
44. 44. Nxg2 Kxg2
45. 45. Rg5+ Kf3
46. 46. Rxg6 Ke4
47. 47. Rxg7 Ke5
48. 48. Rxc7 Kd6
49. 49. Rxa7 Kc6
50. 50. Kb4 Kb6
51. 51. Re7 Kc6
52. 52. Re6+ Kd7
53. 53. Re3 Kc6
54. 54. c5 Kd7
55. 55. Kb5 Kc7
56. 56. a4 Kb7
57. 57. Re7+ Kc8
58. 58. c6 Kd8
59. 59. Rd7+ Kc8
60. 60. Kb6 Kb8
61. 61. c7+ Kc8
62. 62. Rd8#