r1q2bnr/1p2kp2/4pn2/1N1p2Pp/P1pP2b1/P4PR1/2P1P3/R1Q1KBN1 b Q - 5 16
FEN state: r1q2bnr/1p2kp2/4pn2/1N1p2Pp/P1pP2b1/P4PR1/2P1P3/R1Q1KBN1 b Q - 5 16 ; Best move: c8b8
The current state of the chess board is: Black rook at a8, black queen at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black king at e7 and black pawn at f7. Black pawn at e6 and black knight at f6. White knight at b5, black pawn at d5, white pawn at g5 and black pawn at h5. White pawn at a4, black pawn at c4, white pawn at d4 and black bishop at g4. White pawn at a3, white pawn at f3 and white rook at g3. White pawn at c2 and white pawn at e2. White rook at a1, white queen at c1, 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 5. Full move number is 16. Black to move.