Chess puzzle (Advantage)
Opening: Nimzo-Larsen_Attack, Nimzo-Larsen_Attack_Modern_Variation
Moves: 1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Qd6 5. Nf3 f6 6. d4 e4 7. Nfd2 Nh6 8. h3
Bd7 9. c4 a6 10. Ba4 Nb4 11. Bxd7+ Qxd7 12. cxd5 *
Position (FEN): r3kb1r/1ppq2pp/p4p1n/3P4/1n1Pp3/1P2P2P/PB1N1PP1/RN1QK2R b KQkq - 0 12
Black to move.
Themes:  Opening  
Puzzle rating: 1211
Best move: Nd3+