r2k2nr/pbpp1Q2/npqb4/4p1pp/PP3N2/B1P1KP1P/3PP1P1/RN3B1R b - - 0 20
FEN state: r2k2nr/pbpp1Q2/npqb4/4p1pp/PP3N2/B1P1KP1P/3PP1P1/RN3B1R b - - 0 20 ; Best move: g5f4
The current state of the chess board is: Black rook at a8, black king at d8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black pawn at d7 and white queen at f7. Black knight at a6, black pawn at b6, black queen at c6 and black bishop at d6. Black pawn at e5, black pawn at g5 and black pawn at h5. White pawn at a4, white pawn at b4 and white knight at f4. White bishop at a3, white pawn at c3, white king at e3, white pawn at f3 and white pawn at h3. White pawn at d2, white pawn at e2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.