bn3b1r/4k1p1/1p1p1p2/rNpPp1Pp/1PP5/2B2P2/R2P2P1/1B2K1NR w - - 8 21
FEN state: bn3b1r/4k1p1/1p1p1p2/rNpPp1Pp/1PP5/2B2P2/R2P2P1/1B2K1NR w - - 8 21 ; Best move: b4a5
The current state of the chess board is: Black bishop at a8, black knight at b8, black bishop at f8 and black rook at h8. Black king at e7 and black pawn at g7. Black pawn at b6, black pawn at d6 and black pawn at f6. Black rook at a5, white knight at b5, black pawn at c5, white pawn at d5, black pawn at e5, white pawn at g5 and black pawn at h5. White pawn at b4 and white pawn at c4. White bishop at c3 and white pawn at f3. White rook at a2, white pawn at d2 and white pawn at g2. White bishop at b1, white king at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 8. Full move number is 21. White to move.