r1bqk1n1/pp2bppr/n1ppp3/7p/PP2P3/8/1BPPKPPP/RN2QBNR b q - 0 8
FEN state: r1bqk1n1/pp2bppr/n1ppp3/7p/PP2P3/8/1BPPKPPP/RN2QBNR b q - 0 8 ; Best move: a6b4
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 knight at g8. Black pawn at a7, black pawn at b7, black bishop at e7, black pawn at f7, black pawn at g7 and black rook at h7. Black knight at a6, black pawn at c6, black pawn at d6 and black pawn at e6. Black pawn at h5. White pawn at a4, white pawn at b4 and white pawn at e4. White bishop at b2, white pawn at c2, white pawn at d2, white king at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, 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 0. Full move number is 8. Black to move.