r3kbr1/p1q1p2p/2npbp2/1pp3pP/3P2P1/P4P1R/1PP1K1B1/RNBQ2N1 b q - 0 17
FEN state: r3kbr1/p1q1p2p/2npbp2/1pp3pP/3P2P1/P4P1R/1PP1K1B1/RNBQ2N1 b q - 0 17 ; Best move: c6d4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black queen at c7, black pawn at e7 and black pawn at h7. Black knight at c6, black pawn at d6, black bishop at e6 and black pawn at f6. Black pawn at b5, black pawn at c5, black pawn at g5 and white pawn at h5. White pawn at d4 and white pawn at g4. White pawn at a3, white pawn at f3 and white rook at h3. White pawn at b2, white pawn at c2, white king at e2 and white bishop at g2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 17. Black to move.