rnb1kb2/ppp2pp1/7r/4p2p/1P1PpB1P/N5Pq/P1P1KP1N/R2Q1B1R b q - 1 13
FEN state: rnb1kb2/ppp2pp1/7r/4p2p/1P1PpB1P/N5Pq/P1P1KP1N/R2Q1B1R b q - 1 13 ; Best move: c8g4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at f7 and black pawn at g7. Black rook at h6. Black pawn at e5 and black pawn at h5. White pawn at b4, white pawn at d4, black pawn at e4, white bishop at f4 and white pawn at h4. White knight at a3, white pawn at g3 and black queen at h3. White pawn at a2, white pawn at c2, white king at e2, white pawn at f2 and white knight at h2. White rook at a1, white queen at d1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 13. Black to move.