Chess puzzle (Checkmate)
Opening: Blackmar-Diemer_Gambit_Declined, Blackmar-Diemer_Gambit_Declined_Weinsbach_Declination
Moves: 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 e6 5. Nxe4 Nxe4 6. fxe4 e5 7. Nf3 f6 8.
Be3 Bd6 9. dxe5 fxe5 10. Bg5 Qd7 11. a4 O-O 12. Bc4+ Kh8 13. O-O Nc6 14. Qd5 b6
15. Nxe5 Bxe5 *
Position (FEN): r1b2r1k/p1pq2pp/1pn5/3Qb1B1/P1B1P3/8/1PP3PP/R4RK1 w - - 0 16
White to move.
Themes: Hanging Piece Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 951
Best move: Rxf8#