Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. e4 Bg7 3. Nf3 b6 4. c4 Bb7 5. Nc3 Nf6 6. e5 Ng8 7. Be2 d6 8. O-O
dxe5 9. dxe5 Nc6 10. Be3 Nxe5 11. Nxe5 Bxe5 12. Qa4+ c6 13. Rad1 Qc7 14. h3 h5
15. Bg5 Nf6 16. Qc2 Bh2+ 17. Kh1 Ng4 18. Qe4 c5 19. Qxe7+ Qxe7 20. Bxe7 Kxe7
21. Bxg4 hxg4 22. Kxh2 gxh3 23. gxh3 Rh4 24. Rfe1+ Kf6 25. Nb5 Rah8 26. Rd3 a6
27. Nd6 Bc6 28. Rde3 Rf4 29. Kg3 Rhh4 30. b3 b5 31. cxb5 axb5 32. a3 Bd7 33.
Kg2 c4 34. bxc4 bxc4 35. Rc1 Be6 36. Ne8+ Kg5 37. Nc7 Bf5 38. a4 Bd3 39. a5 Rf6
40. a6 Rhf4 41. a7 Rxf2+ 42. Kg3 Be4 43. Rxe4 *
Position (FEN): 8/P1N2p2/5rp1/6k1/2p1R3/6KP/5r2/2R5 b - - 0 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1069
Best move: R6f3#