Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 Bb4 7. Bd3 d5 8.
exd5 Nxd5 9. O-O Nxc3 10. bxc3 Bxc3 11. Nxc6 bxc6 12. Rb1 O-O 13. Qf3 Bd7 14.
Rfd1 Bf6 15. Rb7 Qc8 16. Rxd7 Qxd7 17. Bxh7+ Kxh7 18. Rxd7 Rfd8 19. Rxd8 Rxd8
20. h4 Be5 21. Qxc6 *
Position (FEN): 3r4/p4ppk/2Q1p3/4b3/7P/4B3/P1P2PP1/6K1 b - - 0 21
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 574
Best move: Rd1#