Chess puzzle (Advantage)
Opening: Benoni_Defense, Benoni_Defense_Old_Benoni
Moves: 1. d4 c5 2. Bf4 cxd4 3. Nf3 Nc6 4. Nxd4 d6 5. e3 a6 6. Bd3 Nb4 7. Bg3 e5 8. Nf3
Nf6 9. c3 *
Position (FEN): r1bqkb1r/1p3ppp/p2p1n2/4p3/1n6/2PBPNB1/PP3PPP/RN1QK2R b KQkq - 0 9
Black to move.
Themes:  Opening  
Puzzle rating: 1590
Best move: Nxd3+