r1b3kr/b1p4p/p2qp1pn/PB2N3/1RQ1PP2/2PP1P2/1P5P/1NBK3R b - - 0 23
FEN state: r1b3kr/b1p4p/p2qp1pn/PB2N3/1RQ1PP2/2PP1P2/1P5P/1NBK3R b - - 0 23 ; Best move: a6b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at g8 and black rook at h8. Black bishop at a7, black pawn at c7 and black pawn at h7. Black pawn at a6, black queen at d6, black pawn at e6, black pawn at g6 and black knight at h6. White pawn at a5, white bishop at b5 and white knight at e5. White rook at b4, white queen at c4, white pawn at e4 and white pawn at f4. White pawn at c3, white pawn at d3 and white pawn at f3. White pawn at b2 and white pawn at h2. White knight at b1, white bishop at c1, white king at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. Black to move.