rn1Q1k2/1b1p2pr/4pp2/1NP4p/1b4P1/1P1KB1nP/P3PP2/2R2BNR b - - 0 21
FEN state: rn1Q1k2/1b1p2pr/4pp2/1NP4p/1b4P1/1P1KB1nP/P3PP2/2R2BNR b - - 0 21 ; Best move: f8f7
The current state of the chess board is: Black rook at a8, black knight at b8, white queen at d8 and black king at f8. Black bishop at b7, black pawn at d7, black pawn at g7 and black rook at h7. Black pawn at e6 and black pawn at f6. White knight at b5, white pawn at c5 and black pawn at h5. Black bishop at b4 and white pawn at g4. White pawn at b3, white king at d3, white bishop at e3, black knight at g3 and white pawn at h3. White pawn at a2, white pawn at e2 and white pawn at f2. White rook at c1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.