Chess puzzle (Advantage)
Opening: Scotch_Game, Scotch_Game_Scotch_Gambit
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 Ng8 6. c3 Bc5 7. Qb3 Qe7 8. Bg5
f6 9. Bh4 Nh6 *
Position (FEN): r1b1k2r/ppppq1pp/2n2p1n/2b1P3/2Bp3B/1QP2N2/PP3PPP/RN2K2R w KQkq - 2 10
White to move.
Themes: Defensive Move Opening  Castling
Puzzle rating: 1494
Best move: O-O