Chess puzzle (Advantage)
Opening: Nimzo-Larsen_Attack, Nimzo-Larsen_Attack_Modern_Variation
Moves: 1. b3 e5 2. Bb2 Nc6 3. e3 a6 4. g3 Bb4 5. c4 d5 6. cxd5 Qxd5 7. Nf3 Bg4 8. Bg2
f6 9. O-O *
Position (FEN): r3k1nr/1pp3pp/p1n2p2/3qp3/1b4b1/1P2PNP1/PB1P1PBP/RN1Q1RK1 b kq - 1 9
Black to move.
Themes:  Opening  
Puzzle rating: 1593
Best move: e4