Chess puzzle (Equality)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. f4 Ne4 8.
Be3 Qh4+ 9. g3 Nxg3 10. Bf2 Qxf4 11. Bxg3 Qe4+ 12. Qe2 Qxh1 13. Nc3 Bb4 *
Position (FEN): r1b1k2r/p1pp1ppp/2p5/4P3/1b6/2N3B1/PPP1Q2P/R3KB1q w Qkq - 2 14
White to move.
Themes: Defensive Move Middlegame  Castling
Puzzle rating: 1576
Best move: O-O-O