Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d3 Nf6 4. Bg5 Be7 5. h3 h6 6. Bh4 O-O 7. Nc3 g5 8. Bg3
d6 9. d4 exd4 10. Nxd4 Nxd4 11. Qxd4 Be6 12. Bd3 Nh5 13. Bh2 Bf6 14. Qe3 Be5
15. Bxe5 dxe5 16. Nd5 Bxd5 17. exd5 Nf4 18. Be4 c6 19. g3 cxd5 20. gxf4 exf4
21. Bh7+ Kxh7 22. Qd3+ Kg8 23. O-O-O Qb6 24. Qxd5 Rfd8 25. Qf5 Qxf2 26. Rxd8+
Rxd8 27. Qf6 Qd2+ 28. Kb1 Qd1+ 29. Rxd1 *
Position (FEN): 3r2k1/pp3p2/5Q1p/6p1/5p2/7P/PPP5/1K1R4 b - - 0 29
Black to move.
Themes:  Endgame, Queen and Rook Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 400
Best move: Rxd1#