Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 a6 5. Nc3 Nf6 6. f4 e6 7. Nf3 Be7 8. d5
exd5 9. e5 dxe5 10. fxe5 Ng4 11. Nxd5 Be6 12. Bc4 Bc5 13. Nc7+ *
Position (FEN): rn1qk2r/1pN2ppp/p3b3/2b1P3/2B3n1/5N2/PP4PP/R1BQK2R b KQkq - 4 13
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 827
Best move: Qxc7