Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5
9. Nxg5 hxg5 10. Bxg5 Nbd7 11. exf6 Qb6 12. Be2 Bb7 13. Qc2 O-O-O 14. O-O-O Bh6
15. f4 b4 16. Ne4 c5 17. Bxh6 Rxh6 18. dxc5 Nxc5 19. Rxd8+ Kxd8 20. Rd1+ Ke8
21. Nd6+ Kf8 22. Nxc4 Qc7 23. Nd6 Bxg2 24. Kb1 Rxh2 25. Nb5 Qc8 26. Qxc5+ Qxc5
*
Position (FEN): 5k2/p4p2/4pP2/1Nq5/1p3P2/8/PP2B1br/1K1R4 w - - 0 27
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 650
Best move: Rd8#