q3k1nr/3nppb1/r6p/ppp5/P1PP1Nbp/1P3pPR/NB2Q3/R3KB2 b k - 2 21
FEN state: q3k1nr/3nppb1/r6p/ppp5/P1PP1Nbp/1P3pPR/NB2Q3/R3KB2 b k - 2 21 ; Best move: f3e2
The current state of the chess board is: Black queen at a8, black king at e8, black knight at g8 and black rook at h8. Black knight at d7, black pawn at e7, black pawn at f7 and black bishop at g7. Black rook at a6 and black pawn at h6. Black pawn at a5, black pawn at b5 and black pawn at c5. White pawn at a4, white pawn at c4, white pawn at d4, white knight at f4, black bishop at g4 and black pawn at h4. White pawn at b3, black pawn at f3, white pawn at g3 and white rook at h3. White knight at a2, white bishop at b2 and white queen at e2. White rook at a1, white king at e1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 2. Full move number is 21. Black to move.