Chess puzzle (Crushing)
Opening: Nimzo-Larsen_Attack, Nimzo-Larsen_Attack_Classical_Variation
Moves: 1. Nf3 d5 2. b3 Nf6 3. Bb2 e6 4. e3 c5 5. d4 b6 6. c4 Nbd7 7. Be2 Bb7 8. O-O g6
9. Nc3 Bg7 10. Qd2 O-O 11. Rfd1 Qc7 12. Rac1 Rad8 13. cxd5 Nxd5 14. Nxd5 Bxd5
15. dxc5 bxc5 16. Bxg7 Kxg7 17. Bb5 Bxf3 18. Bxd7 *
Position (FEN): 3r1r2/p1qB1pkp/4p1p1/2p5/8/1P2Pb2/P2Q1PPP/2RR2K1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1523
Best move: Bxd1