r1q1kb1r/3p4/1P2p3/pb3pBp/P3n2P/2P1PN2/Q2N1PP1/R3KB1R b KQk - 4 20
FEN state: r1q1kb1r/3p4/1P2p3/pb3pBp/P3n2P/2P1PN2/Q2N1PP1/R3KB1R b KQk - 4 20 ; Best move: b5f1
The current state of the chess board is: Black rook at a8, black queen at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at d7. White pawn at b6 and black pawn at e6. Black pawn at a5, black bishop at b5, black pawn at f5, white bishop at g5 and black pawn at h5. White pawn at a4, black knight at e4 and white pawn at h4. White pawn at c3, white pawn at e3 and white knight at f3. White queen at a2, white knight at d2, white pawn at f2 and white pawn at g2. White rook at a1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 4. Full move number is 20. Black to move.