Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nc3 c6 3. Qd3 Nf6 4. Bf4 Nbd7 5. Nf3 e6 6. h3 Be7 7. g4 h6 8. Bg2
c5 9. O-O O-O 10. b3 b6 11. Qb5 a6 12. Qc6 Rb8 13. Bxb8 *
Position (FEN): 1Bbq1rk1/3nbpp1/ppQ1pn1p/2pp4/3P2P1/1PN2N1P/P1P1PPB1/R4RK1 b - - 0 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1219
Best move: Nxb8