Chess puzzle (Checkmate)
Opening: Slav_Defense, Slav_Defense_Other_variations
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bg5 e6 6. e3 Be7 7. Bd3 O-O 8.
Nge2 h6 9. Bh4 Qc7 10. O-O Ng4 11. Bxe7 *
Position (FEN): rnb2rk1/ppq1Bpp1/4p2p/3p4/3P2n1/2NBP3/PP2NPPP/R2Q1RK1 b - - 0 11
Black to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 990
Best move: Qxh2#