Chess puzzle (Crushing)
Opening: Sicilian_Defense, Sicilian_Defense_Staunton-Cochrane_Variation
Moves: 1. e4 c5 2. c4 Nc6 3. Nc3 d6 4. d3 e6 5. h3 Nf6 6. g4 h6 7. Bg2 Be7 8. Nge2 a6
9. Nf4 b5 10. cxb5 axb5 11. Nxb5 Ba6 12. Qb3 Rb8 13. Qa4 *
Position (FEN): 1r1qk2r/4bpp1/b1nppn1p/1Np5/Q3PNP1/3P3P/PP3PB1/R1B1K2R b KQk - 4 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 952
Best move: Bxb5