Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. cxd4 Bb4+ 8.
Bd2 Bxd2+ 9. Nbxd2 d6 10. O-O Nf6 11. Re1 O-O 12. e5 dxe5 13. dxe5 Ng4 14. Qc2
Nd4 15. Qe4 Nxf3+ 16. Nxf3 Nh6 17. Rad1 Qe8 18. Ng5 Bf5 19. Qxb7 Qe7 20. Nf3
Rfb8 21. Qc6 g6 22. e6 Bxe6 23. Bxe6 fxe6 24. Rxe6 Qf7 25. Rd7 Rb1+ 26. Ne1 Qf8
27. Rf6 *
Position (FEN): r4qk1/p1pR3p/2Q2Rpn/8/8/8/P4PPP/1r2N1K1 b - - 6 27
Black to move.
Themes: Hanging Piece Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 751
Best move: Rxe1#