r1q2Nnr/p1p2k2/np1p1p1p/1B3b2/P2Pp3/2N1PPKP/RPP3P1/2BQ3R b - - 0 16
FEN state: r1q2Nnr/p1p2k2/np1p1p1p/1B3b2/P2Pp3/2N1PPKP/RPP3P1/2BQ3R b - - 0 16 ; Best move: a6b4
The current state of the chess board is: Black rook at a8, black queen at c8, white knight at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7 and black king at f7. Black knight at a6, black pawn at b6, black pawn at d6, black pawn at f6 and black pawn at h6. White bishop at b5 and black bishop at f5. White pawn at a4, white pawn at d4 and black pawn at e4. White knight at c3, white pawn at e3, white pawn at f3, white king at g3 and white pawn at h3. White rook at a2, white pawn at b2, white pawn at c2 and white pawn at g2. White bishop at c1, white queen at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 16. Black to move.