Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. g3 e6 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. Qxc4
cxd4 9. Nxd4 Rc8 10. Nc3 Nxd4 11. Qxd4 Bc5 12. Qd3 Bc6 13. Qxd8+ Rxd8 14. Bxc6+
bxc6 15. Bg5 Rb8 16. Rab1 Ng4 17. Ne4 Be7 18. Bxe7 Kxe7 19. Rfc1 Rb4 20. Nc5
Rd8 21. Rc2 Ne5 22. Rbc1 g5 23. h3 h5 24. b3 g4 25. h4 Rbd4 26. Kg2 Kf6 27. Nd3
Nxd3 28. exd3 Rxd3 29. Rxc6 Rd2 30. R1c2 a5 31. R6c5 Rxc2 32. Rxc2 Rd5 33. Rc4
e5 34. Kf1 Rd2 35. Ra4 Rd5 36. Ke2 Rc5 37. Ke3 Ke6 38. b4 axb4 39. Rxb4 Rc3+
40. Ke4 *
Position (FEN): 8/5p2/4k3/4p2p/1R2K1pP/2r3P1/P4P2/8 b - - 2 40
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 988
Best move: f5#