r1bn1kn1/1p2ppbr/p6q/2p3pp/5P1P/1QP1P3/PP1PN1P1/RNB1KB2 w Q - 1 13
FEN state: r1bn1kn1/1p2ppbr/p6q/2p3pp/5P1P/1QP1P3/PP1PN1P1/RNB1KB2 w Q - 1 13 ; Best move: h4g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at d8, black king at f8 and black knight at g8. Black pawn at b7, black pawn at e7, black pawn at f7, black bishop at g7 and black rook at h7. Black pawn at a6 and black queen at h6. Black pawn at c5, black pawn at g5 and black pawn at h5. White pawn at f4 and white pawn at h4. White queen at b3, white pawn at c3 and white pawn at e3. White pawn at a2, white pawn at b2, white pawn at d2, white knight at e2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 1. Full move number is 13. White to move.