Chess puzzle (Checkmate)
Moves: 1. e4 d6 2. Nf3 Nf6 3. e5 dxe5 4. Nxe5 Nbd7 5. Nf3 g6 6. d4 Bg7 7. c3 O-O 8.
Bd3 c5 9. O-O b6 10. Re1 Bb7 11. Ne5 cxd4 12. cxd4 Qc7 13. Bf4 Nd5 14. Bg3 Qd8
15. Nc3 Nxc3 16. bxc3 Rc8 17. Rc1 Nxe5 18. Bxe5 Bxe5 19. Rxe5 f6 20. Qb3+ Kg7
21. Ree1 e5 22. Rcd1 exd4 23. Qb4 Qd5 24. Re7+ Rf7 25. Be4 Qh5 26. Rxb7 *
Position (FEN): 2r5/pR3rkp/1p3pp1/7q/1Q1pB3/2P5/P4PPP/3R2K1 b - - 0 26
Black to move.
Themes: Hanging Piece Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 835
Best move: Qxd1#