Chess puzzle (Crushing)
Moves: 1. d4 d5 2. e3 Nc6 3. Nf3 Nf6 4. c3 g6 5. b3 a6 6. Bb2 Bg7 7. Nbd2 Bf5 8. Nh4
Bd7 9. Bd3 e5 10. dxe5 Nxe5 11. Ndf3 Nxd3+ 12. Qxd3 Bc6 13. Ne5 Bb5 14. c4 Bc6
15. Nxc6 bxc6 16. O-O O-O 17. Rab1 Rb8 18. Bxf6 Bxf6 19. Nf3 Qd6 20. Rfd1 Rbd8
21. e4 c5 22. e5 Bxe5 23. Nxe5 Qxe5 24. cxd5 Rfe8 25. Rbc1 Qd6 26. Qf3 Re5 27.
Qg3 f5 28. Rxc5 f4 29. Qc3 Rde8 30. Rxc7 *
Position (FEN): 4r1k1/2R4p/p2q2p1/3Pr3/5p2/1PQ5/P4PPP/3R2K1 b - - 0 30
Black to move.
Themes:  Endgame  
Puzzle rating: 1735
Best move: Qxc7