Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Exchange_Variation
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 c5 5. Bb5+ Nd7 6. Nf5 a6 7. Bc4 b5 8. Bd5
Rb8 9. c4 Ndf6 10. Bg5 Bxf5 11. exf5 Be7 12. O-O *
Position (FEN): 1r1qk1nr/4bppp/p2p1n2/1ppB1PB1/2P5/8/PP3PPP/RN1Q1RK1 b k - 2 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 950
Best move: Nxd5