4rbnr/pkpBpp2/7p/Pp3q1P/1P1pP3/BNP3N1/5PP1/R3K2R b KQ - 4 21
FEN state: 4rbnr/pkpBpp2/7p/Pp3q1P/1P1pP3/BNP3N1/5PP1/R3K2R b KQ - 4 21 ; Best move: f5d7
The current state of the chess board is: Black rook at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black king at b7, black pawn at c7, white bishop at d7, black pawn at e7 and black pawn at f7. Black pawn at h6. White pawn at a5, black pawn at b5, black queen at f5 and white pawn at h5. White pawn at b4, black pawn at d4 and white pawn at e4. White bishop at a3, white knight at b3, white pawn at c3 and white knight at g3. White pawn at f2 and white pawn at g2. White rook at a1, white king at e1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 4. Full move number is 21. Black to move.