Chess puzzle (Checkmate)
Opening: Nimzowitsch_Defense, Nimzowitsch_Defense_Other_variations
Moves: 1. e4 Nc6 2. f4 e6 3. Nf3 Bc5 4. d4 Bb6 5. f5 d5 6. fxe6 fxe6 7. e5 h6 8. Be2
g5 9. O-O Bd7 10. c3 Qe7 11. b3 g4 12. Ba3 Qd8 13. Nfd2 Qg5 *
Position (FEN): r3k1nr/pppb4/1bn1p2p/3pP1q1/3P2p1/BPP5/P2NB1PP/RN1Q1RK1 w kq - 4 14
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1102
Best move: Rf8#