B1b3nr/p1p2q2/2nkp1pp/8/1P1p1P2/P2p2B1/2P3PP/RN1Q1KNR b - - 1 21
FEN state: B1b3nr/p1p2q2/2nkp1pp/8/1P1p1P2/P2p2B1/2P3PP/RN1Q1KNR b - - 1 21 ; Best move: c8a6
The current state of the chess board is: White bishop at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7 and black queen at f7. Black knight at c6, black king at d6, black pawn at e6, black pawn at g6 and black pawn at h6. White pawn at b4, black pawn at d4 and white pawn at f4. White pawn at a3, black pawn at d3 and white bishop at g3. White pawn at c2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move.