r1bq1bnr/p1pk2Bp/5p2/1pnp4/P2PpP2/7N/1PPNP1PP/1R1QKB1R w K - 0 10
FEN state: r1bq1bnr/p1pk2Bp/5p2/1pnp4/P2PpP2/7N/1PPNP1PP/1R1QKB1R w K - 0 10 ; Best move: g7f8
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black king at d7, white bishop at g7 and black pawn at h7. Black pawn at f6. Black pawn at b5, black knight at c5 and black pawn at d5. White pawn at a4, white pawn at d4, black pawn at e4 and white pawn at f4. White knight at h3. White pawn at b2, white pawn at c2, white knight at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 10. White to move.