2q1kb1r/r1p1pp1p/1p2b1p1/8/p3PP2/2PP4/n5QP/RNB2K1R b k - 1 21
FEN state: 2q1kb1r/r1p1pp1p/1p2b1p1/8/p3PP2/2PP4/n5QP/RNB2K1R b k - 1 21 ; Best move: a2c1
The current state of the chess board is: Black queen at c8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at b6, black bishop at e6 and black pawn at g6. Black pawn at a4, white pawn at e4 and white pawn at f4. White pawn at c3 and white pawn at d3. Black knight at a2, white queen at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 21. Black to move.