Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. e3 e6 5. Be2 Nbd7 6. O-O Bd6 7. Bg5 O-O 8.
Ne5 Be7 9. Nxd7 Qxd7 10. Nd2 Rac8 11. Nf3 c5 12. Ne5 Qd6 13. c4 cxd4 14. exd4
Ne4 15. Bxe7 Qxe7 16. c5 Bg6 17. Nxg6 fxg6 18. Bf3 Ng5 19. Bg4 h5 20. Be2 Qf6
21. Bd3 Ne4 22. Bxe4 dxe4 23. Qd2 Rcd8 24. Rad1 Rd5 25. Qe3 Qf5 26. b4 a6 27.
Rde1 Rfd8 28. Rd1 e5 29. Rfe1 exd4 30. Qxe4 Qxe4 31. Rxe4 d3 32. Rd2 g5 33. g3
Kf7 34. f4 g4 35. Kf2 g6 36. Ke3 R8d7 37. Re5 Rxe5+ 38. fxe5 Ke6 39. Ke4 Rd5
40. Rxd3 Rxe5+ 41. Kf4 *
Position (FEN): 8/1p6/p3k1p1/2P1r2p/1P3Kp1/3R2P1/P6P/8 b - - 1 41
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1581
Best move: g5#