Chess puzzle (Checkmate)
Opening: Horwitz_Defense, Horwitz_Defense_Other_variations
Moves: 1. d4 e6 2. c4 c5 3. d5 a6 4. Nc3 Qc7 5. dxe6 dxe6 6. Nf3 h5 7. e4 Nc6 8. Be2
Nf6 9. O-O Ng4 10. h3 Nd4 11. Nxd4 *
Position (FEN): r1b1kb1r/1pq2pp1/p3p3/2p4p/2PNP1n1/2N4P/PP2BPP1/R1BQ1RK1 b kq - 0 11
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 678
Best move: Qh2#