Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Zukertort_Variation
Moves: 1. d4 d5 2. Nf3 e6 3. Bf4 c5 4. e3 Nc6 5. c4 Qb6 6. b3 cxd4 7. Nxd4 Bb4+ 8. Nd2
Nxd4 9. exd4 Qxd4 10. Be3 Qe5 11. cxd5 exd5 12. Bb5+ Bd7 *
Position (FEN): r3k1nr/pp1b1ppp/8/1B1pq3/1b6/1P2B3/P2N1PPP/R2QK2R w KQkq - 2 13
White to move.
Themes:  Opening  
Puzzle rating: 744
Best move: Bxd7+