2bqkr2/r1p1n1bp/n2p2p1/pp4N1/1P2pP2/2P3PP/P1QPBP2/RNB1K2R w Q - 0 18
FEN state: 2bqkr2/r1p1n1bp/n2p2p1/pp4N1/1P2pP2/2P3PP/P1QPBP2/RNB1K2R w Q - 0 18 ; Best move: g5h7
The current state of the chess board is: Black bishop at c8, black queen at d8, black king at e8 and black rook at f8. Black rook at a7, black pawn at c7, black knight at e7, black bishop at g7 and black pawn at h7. Black knight at a6, black pawn at d6 and black pawn at g6. Black pawn at a5, black pawn at b5 and white knight at g5. White pawn at b4, black pawn at e4 and white pawn at f4. White pawn at c3, white pawn at g3 and white pawn at h3. White pawn at a2, white queen at c2, white pawn at d2, white bishop at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. White to move.