r3r3/1bp1b1pp/p1k1pq2/1p2nP1P/1n3P2/P2P2PQ/1PP1N2R/2KRBB2 b - - 0 21
FEN state: r3r3/1bp1b1pp/p1k1pq2/1p2nP1P/1n3P2/P2P2PQ/1PP1N2R/2KRBB2 b - - 0 21 ; Best move: b4a2
The current state of the chess board is: Black rook at a8 and black rook at e8. Black bishop at b7, black pawn at c7, black bishop at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black king at c6, black pawn at e6 and black queen at f6. Black pawn at b5, black knight at e5, white pawn at f5 and white pawn at h5. Black knight at b4 and white pawn at f4. White pawn at a3, white pawn at d3, white pawn at g3 and white queen at h3. White pawn at b2, white pawn at c2, white knight at e2 and white rook at h2. White king at c1, white rook at d1, white bishop at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.