r1bk2nr/p2p2p1/1Pp3qp/P4p2/2P2p2/2K1P2N/5PPP/RNQ2B1R b - - 0 21
FEN state: r1bk2nr/p2p2p1/1Pp3qp/P4p2/2P2p2/2K1P2N/5PPP/RNQ2B1R b - - 0 21 ; Best move: g6f6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at d7 and black pawn at g7. White pawn at b6, black pawn at c6, black queen at g6 and black pawn at h6. White pawn at a5 and black pawn at f5. White pawn at c4 and black pawn at f4. White king at c3, white pawn at e3 and white knight at h3. White pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.