r1b2k2/np2p1br/1q1p1p2/p1p4p/P1P2P1P/2n3PB/1P1PP3/R1BQK1R1 w Q - 0 16
FEN state: r1b2k2/np2p1br/1q1p1p2/p1p4p/P1P2P1P/2n3PB/1P1PP3/R1BQK1R1 w Q - 0 16 ; Best move: d1c2
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at f8. Black knight at a7, black pawn at b7, black pawn at e7, black bishop at g7 and black rook at h7. Black queen at b6, black pawn at d6 and black pawn at f6. Black pawn at a5, black pawn at c5 and black pawn at h5. White pawn at a4, white pawn at c4, white pawn at f4 and white pawn at h4. Black knight at c3, white pawn at g3 and white bishop at h3. White pawn at b2, white pawn at d2 and white pawn at e2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 16. White to move.