r1bqk3/2ppn1r1/ppnb2p1/5pB1/P1BPPp2/2P4P/1P3KPR/RNQ3N1 w q - 0 16
FEN state: r1bqk3/2ppn1r1/ppnb2p1/5pB1/P1BPPp2/2P4P/1P3KPR/RNQ3N1 w q - 0 16 ; Best move: b1d2
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black king at e8. Black pawn at c7, black pawn at d7, black knight at e7 and black rook at g7. Black pawn at a6, black pawn at b6, black knight at c6, black bishop at d6 and black pawn at g6. Black pawn at f5 and white bishop at g5. White pawn at a4, white bishop at c4, white pawn at d4, white pawn at e4 and black pawn at f4. White pawn at c3 and white pawn at h3. White pawn at b2, white king at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white queen at c1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 16. White to move.