Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Modern_Variations
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. Nc3 g6 5. d4 Nbd7 6. Ng5 e6 7. Bxe6 fxe6 8.
Nxe6 Qb6 9. Nb5 Ke7 10. Nbc7 Rb8 11. Bg5 Qxb2 12. e5 dxe5 *
Position (FEN): 1rb2b1r/ppNnk2p/4Nnp1/2p1p1B1/3P4/8/PqP2PPP/R2QK2R w KQ - 0 13
White to move.
Themes: Defensive Move Middlegame  Castling
Puzzle rating: 2545
Best move: O-O