r1b1kb2/pp1n1p2/1q3npr/2PppP1p/2P4P/1P2K3/PB1NP1P1/R3QBNR b q - 3 17
FEN state: r1b1kb2/pp1n1p2/1q3npr/2PppP1p/2P4P/1P2K3/PB1NP1P1/R3QBNR b q - 3 17 ; Best move: d7c5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black knight at d7 and black pawn at f7. Black queen at b6, black knight at f6, black pawn at g6 and black rook at h6. White pawn at c5, black pawn at d5, black pawn at e5, white pawn at f5 and black pawn at h5. White pawn at c4 and white pawn at h4. White pawn at b3 and white king at e3. White pawn at a2, white bishop at b2, white knight at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at e1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 3. Full move number is 17. Black to move.