r4rk1/p1qbppbp/npNp1np1/5P2/1PpPP2P/B1P5/P2NB1P1/R2QKR2 b Q - 0 16
FEN state: r4rk1/p1qbppbp/npNp1np1/5P2/1PpPP2P/B1P5/P2NB1P1/R2QKR2 b Q - 0 16 ; Best move: d7c6
The current state of the chess board is: Black rook at a8, black rook at f8 and black king at g8. Black pawn at a7, black queen at c7, black bishop at d7, black pawn at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black knight at a6, black pawn at b6, white knight at c6, black pawn at d6, black knight at f6 and black pawn at g6. White pawn at f5. White pawn at b4, black pawn at c4, white pawn at d4, white pawn at e4 and white pawn at h4. White bishop at a3 and white pawn at c3. White pawn at a2, white knight at d2, white bishop at e2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1 and white rook at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 16. Black to move.