r1bk1bn1/pp1p2p1/n1p2pr1/6qp/1P3p1P/2P3P1/PB1PP1B1/RN1QK1NR w Q - 1 13
FEN state: r1bk1bn1/pp1p2p1/n1p2pr1/6qp/1P3p1P/2P3P1/PB1PP1B1/RN1QK1NR w Q - 1 13 ; Best move: h4g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at d7 and black pawn at g7. Black knight at a6, black pawn at c6, black pawn at f6 and black rook at g6. Black queen at g5 and black pawn at h5. White pawn at b4, black pawn at f4 and white pawn at h4. White pawn at c3 and white pawn at g3. White pawn at a2, white bishop at b2, white pawn at d2, white pawn at e2 and white bishop at g2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White queenside is the only castle move available. Half move number is 1. Full move number is 13. White to move.