Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Accelerated_Panov_Attack
Moves: 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Qxd5 5. Nc3 Qd8 6. Nf3 Nf6 7. d4 Bg4 8.
Bc4 Bxf3 9. Qxf3 Qxd4 10. Bb5+ Nbd7 11. Qxb7 Rb8 *
Position (FEN): 1r2kb1r/pQ1npppp/5n2/1B6/3q4/2N5/PP3PPP/R1B1K2R w KQk - 1 12
White to move.
Themes: Pin Opening Mate in 1 
Puzzle rating: 1704
Best move: Qxb8#