rnn1kb1r/1q6/3p1pp1/1pp4p/pQPP3P/P5P1/RP1KP2R/1NB2bN1 b kq - 0 21
FEN state: rnn1kb1r/1q6/3p1pp1/1pp4p/pQPP3P/P5P1/RP1KP2R/1NB2bN1 b kq - 0 21 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at c8, black king at e8, black bishop at f8 and black rook at h8. Black queen at b7. Black pawn at d6, black pawn at f6 and black pawn at g6. Black pawn at b5, black pawn at c5 and black pawn at h5. Black pawn at a4, white queen at b4, white pawn at c4, white pawn at d4 and white pawn at h4. White pawn at a3 and white pawn at g3. White rook at a2, white pawn at b2, white king at d2, white pawn at e2 and white rook at h2. White knight at b1, white bishop at c1, black bishop at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 21. Black to move.