Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Nc3 c6 5. e4 b5 6. e5 Nd5 7. a4 Qa5 8. Bd2 b4
9. Ne4 Ba6 10. Rc1 e6 11. Bxc4 Bxc4 12. Rxc4 Qa6 13. b3 Nd7 14. O-O Be7 15. Qc2
Rc8 16. Rc1 Nb8 17. h4 O-O 18. Neg5 g6 19. h5 Bxg5 20. Nxg5 c5 21. Ne4 Nd7 22.
Bh6 Rfd8 23. Bg5 Rf8 24. Nxc5 Nxc5 25. dxc5 Rc6 26. Qe4 Nc3 27. Qg4 Rfc8 28.
Be3 R8c7 29. h6 Nd5 30. Qh4 Qc8 31. Bd4 Rd7 32. g3 a5 33. R4c2 Qd8 34. Re2 Qxh4
35. gxh4 Nf4 36. Re4 Rxd4 37. Rxd4 Ne2+ 38. Kg2 Nxd4 39. Rd1 Nxb3 *
Position (FEN): 6k1/5p1p/2r1p1pP/p1P1P3/Pp5P/1n6/5PK1/3R4 w - - 0 40
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 697
Best move: Rd8#