r1bqkb2/ppp2pp1/n2p3r/4p2p/1nP1Q1P1/4P3/PPBPKP1P/RNB3NR b q - 8 9
FEN state: r1bqkb2/ppp2pp1/n2p3r/4p2p/1nP1Q1P1/4P3/PPBPKP1P/RNB3NR b q - 8 9 ; Best move: a6c5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, 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 knight at a6, black pawn at d6 and black rook at h6. Black pawn at e5 and black pawn at h5. Black knight at b4, white pawn at c4, white queen at e4 and white pawn at g4. White pawn at e3. White pawn at a2, white pawn at b2, white bishop at c2, white pawn at d2, white king at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 8. Full move number is 9. Black to move.