Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 e6 3. a3 c5 4. e3 Nc6 5. Nf3 Nf6 6. Bd3 c4 7. Be2 Bd6 8. Bxd6
Qxd6 9. O-O Bd7 10. Nbd2 a6 11. b3 b5 12. a4 O-O 13. axb5 axb5 14. bxc4 bxc4
15. c3 Rfb8 16. Rxa8 Rxa8 17. Qb1 Rb8 18. Qa1 Ne7 19. Ne5 Nc6 20. Qa6 Qc7 21.
e4 Nxe5 22. dxe5 Qxe5 23. Bf3 Qxc3 24. exd5 Qxd2 25. dxe6 Bxe6 26. Qa7 Rc8 27.
Bb7 Rd8 28. Qb6 c3 29. Rb1 Qd1+ 30. Rxd1 *
Position (FEN): 3r2k1/1B3ppp/1Q2bn2/8/8/2p5/5PPP/3R2K1 b - - 0 30
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 470
Best move: Rxd1#