Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. Nb5 Bxe3 7. fxe3 Qh4+
8. g3 Qxe4 9. Nxc7+ Kd8 10. Nxa8 Qxh1 11. Qd6 Nge7 12. Nd2 b6 13. O-O-O Na5 14.
Nxb6 Nb7 15. Qb4 axb6 16. Qxb6+ Ke8 17. Bb5 Qd5 18. Nc4 Qc5 19. Nd6+ Kf8 20.
Nxc8 Qxc8 21. Rxd7 Qc5 22. Qd8+ Nxd8 *
Position (FEN): 3n1k1r/3Rnppp/8/1Bq5/8/4P1P1/PPP4P/2K5 w - - 0 23
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 436
Best move: Rxd8#