r1b1krn1/3p1p1p/4p1p1/1qpP2b1/8/1PN2PP1/3PP2P/1RB1KB1R b Kq - 1 21
FEN state: r1b1krn1/3p1p1p/4p1p1/1qpP2b1/8/1PN2PP1/3PP2P/1RB1KB1R b Kq - 1 21 ; Best move: b5b8
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black rook at f8 and black knight at g8. Black pawn at d7, black pawn at f7 and black pawn at h7. Black pawn at e6 and black pawn at g6. Black queen at b5, black pawn at c5, white pawn at d5 and black bishop at g5. White pawn at b3, white knight at c3, white pawn at f3 and white pawn at g3. White pawn at d2, white pawn at e2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 1. Full move number is 21. Black to move.