rn2kb2/4pr1p/1p1nb1P1/pPp1PpP1/1RPq4/5P1R/P2P4/2BQ1KNB b - - 2 22
FEN state: rn2kb2/4pr1p/1p1nb1P1/pPp1PpP1/1RPq4/5P1R/P2P4/2BQ1KNB b - - 2 22 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black bishop at f8. Black pawn at e7, black rook at f7 and black pawn at h7. Black pawn at b6, black knight at d6, black bishop at e6 and white pawn at g6. Black pawn at a5, white pawn at b5, black pawn at c5, white pawn at e5, black pawn at f5 and white pawn at g5. White rook at b4, white pawn at c4 and black queen at d4. White pawn at f3 and white rook at h3. White pawn at a2 and white pawn at d2. White bishop at c1, white queen at d1, white king at f1, white knight at g1 and white bishop at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 22. Black to move.