2b1k2r/r2pp2n/2p2b1p/Pp3pp1/2P2P2/NQ5P/P2KN1PR/R7 b k - 0 21
FEN state: 2b1k2r/r2pp2n/2p2b1p/Pp3pp1/2P2P2/NQ5P/P2KN1PR/R7 b k - 0 21 ; Best move: f6a1
The current state of the chess board is: Black bishop at c8, black king at e8 and black rook at h8. Black rook at a7, black pawn at d7, black pawn at e7 and black knight at h7. Black pawn at c6, black bishop at f6 and black pawn at h6. White pawn at a5, black pawn at b5, black pawn at f5 and black pawn at g5. White pawn at c4 and white pawn at f4. White knight at a3, white queen at b3 and white pawn at h3. White pawn at a2, white king at d2, white knight at e2, white pawn at g2 and white rook at h2. White rook at a1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.