Rook – Rook Checkmate – with a little context

I won this correspondence chess game recently when I caught the White King in a Rook-Rook checkmate on my thirty-seventh move. It’s interesting to note that as deeply into the game as White’s 27.Rxd4, when he captured my Bishop, our armies had material parity. As seen in the image below, we each had our Queen, two Rooks, a Knight, and five pawns.

1. Nf3 Nf6 2. d4 d5 3. h3 g6 4. Nc3 Bg7 5. Be3 O-O 6. Qd2 Nc6 7. Bh6 e5 8. dxe5 Ne4 9. Nxe4 Re8 10. Ng3 a5 11. a4 Nxe5 12. Nd4 Nc4 13. Qc3 Bxh6 14. e3 Bg7 15. b3 Nd6 16. Qd3 c5 17. O-O-O cxd4 18. exd4 b6 19. Kb1 Ba6 20. Qc3 Rc8 21. Qb2 Bxf1 22. Rhxf1 Qd7 23. Nh1 b5 24. axb5 Nxb5 25. f3 Qa7 26. f4 Bxd4 27. Rxd4


Things got quite bloody from this point, however. And I trapped his King against the edge of the board, checkmating him with my Rooks.

27… Nxd4 28. Rf2 Re1+ 29. Ka2 Rxh1 30. g4 Nb5 31. f5 Qxf2 32. fxg6 Nc3+ 33. Ka3 Qc5+ 34. b4 Qxb4+ 35. Qxb4 axb4+ 36. Kxb4 Rb1+ 37. Ka3 Ra8#