r2qkb1r/2p1ppn1/p2p2pn/1pP4p/1P2P3/P2P1PPb/1BQ4R/RN2KBN1 w Q - 1 16
FEN state: r2qkb1r/2p1ppn1/p2p2pn/1pP4p/1P2P3/P2P1PPb/1BQ4R/RN2KBN1 w Q - 1 16 ; Best move: f1h3
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at f7 and black knight at g7. Black pawn at a6, black pawn at d6, black pawn at g6 and black knight at h6. Black pawn at b5, white pawn at c5 and black pawn at h5. White pawn at b4 and white pawn at e4. White pawn at a3, white pawn at d3, white pawn at f3, white pawn at g3 and black bishop at h3. White bishop at b2, white queen at c2 and white rook at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 16. White to move.