4k1nr/rb3p2/3pq2b/pP1P2pp/3nP1Q1/NpP3P1/5P1P/1RBK2NR b k - 3 20
FEN state: 4k1nr/rb3p2/3pq2b/pP1P2pp/3nP1Q1/NpP3P1/5P1P/1RBK2NR b k - 3 20 ; Best move: e6g4
The current state of the chess board is: Black king at e8, black knight at g8 and black rook at h8. Black rook at a7, black bishop at b7 and black pawn at f7. Black pawn at d6, black queen at e6 and black bishop at h6. Black pawn at a5, white pawn at b5, white pawn at d5, black pawn at g5 and black pawn at h5. Black knight at d4, white pawn at e4 and white queen at g4. White knight at a3, black pawn at b3, white pawn at c3 and white pawn at g3. White pawn at f2 and white pawn at h2. White rook at b1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 3. Full move number is 20. Black to move.