1n4nr/1b2kp2/q1pp2pp/r1p1P3/RbP1P1P1/5N1B/1P1P3P/2BQ1KR1 b - - 0 21
FEN state: 1n4nr/1b2kp2/q1pp2pp/r1p1P3/RbP1P1P1/5N1B/1P1P3P/2BQ1KR1 b - - 0 21 ; Best move: a5a4
The current state of the chess board is: Black knight at b8, black knight at g8 and black rook at h8. Black bishop at b7, black king at e7 and black pawn at f7. Black queen at a6, black pawn at c6, black pawn at d6, black pawn at g6 and black pawn at h6. Black rook at a5, black pawn at c5 and white pawn at e5. White rook at a4, black bishop at b4, white pawn at c4, white pawn at e4 and white pawn at g4. White knight at f3 and white bishop at h3. White pawn at b2, white pawn at d2 and white pawn at h2. White bishop at c1, white queen at d1, white king at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.