r1b2bn1/5kpr/B4p1p/2pPp3/N1P5/P5P1/R2P3P/2BQK1N1 b - - 0 21
FEN state: r1b2bn1/5kpr/B4p1p/2pPp3/N1P5/P5P1/R2P3P/2BQK1N1 b - - 0 21 ; Best move: a8a6
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black knight at g8. Black king at f7, black pawn at g7 and black rook at h7. White bishop at a6, black pawn at f6 and black pawn at h6. Black pawn at c5, white pawn at d5 and black pawn at e5. White knight at a4 and white pawn at c4. White pawn at a3 and white pawn at g3. White rook at a2, white pawn at d2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.