Chess puzzle (Crushing)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Exchange_Variation
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. Bb5 Bd7 6. O-O Nf6 7. c4 e6 8. Bg5
Bd6 9. cxd5 exd5 10. Nc3 Be6 11. Qa4 Qc7 12. Bd3 h6 13. Nb5 Qd7 14. Bh4 Bb8 15.
Rfe1 O-O 16. Ne5 Nxe5 17. dxe5 Ne8 18. Rac1 Nc7 19. Nd6 *
Position (FEN): rb3rk1/ppnq1pp1/3Nb2p/3pP3/Q6B/3B4/PP3PPP/2R1R1K1 b - - 4 19
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 840
Best move: Qxa4