r1q1kb1r/pb1pn1p1/n3p2p/2P3P1/2pP1N2/N3p3/P1Q2PBP/1RB1KR2 w q - 0 16
FEN state: r1q1kb1r/pb1pn1p1/n3p2p/2P3P1/2pP1N2/N3p3/P1Q2PBP/1RB1KR2 w q - 0 16 ; Best move: g2b7
The current state of the chess board is: Black rook at a8, black queen at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at d7, black knight at e7 and black pawn at g7. Black knight at a6, black pawn at e6 and black pawn at h6. White pawn at c5 and white pawn at g5. Black pawn at c4, white pawn at d4 and white knight at f4. White knight at a3 and black pawn at e3. White pawn at a2, white queen at c2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1 and white rook at f1. Black queenside is the only castle move available. Half move number is 0. Full move number is 16. White to move.