Chess puzzle (Crushing)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Ragozin_Defense
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d5 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 dxc4 8.
Bxc4 Bd7 9. O-O O-O 10. Qb3 a5 11. a3 Bd6 12. e4 e5 13. d5 c6 *
Position (FEN): rn3rk1/1p1b1pp1/2pb1q1p/p2Pp3/2B1P3/PQN2N2/1P3PPP/R4RK1 w - - 0 14
White to move.
Themes:  Middlegame  
Puzzle rating: 1593
Best move: Qxb7