r1b1k1nr/p3bp2/n5Q1/1PpNpqp1/P1p4N/4P1PP/3P1P1R/R1B1KB2 b k - 0 20
FEN state: r1b1k1nr/p3bp2/n5Q1/1PpNpqp1/P1p4N/4P1PP/3P1P1R/R1B1KB2 b k - 0 20 ; Best move: f7g6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at e7 and black pawn at f7. Black knight at a6 and white queen at g6. White pawn at b5, black pawn at c5, white knight at d5, black pawn at e5, black queen at f5 and black pawn at g5. White pawn at a4, black pawn at c4 and white knight at h4. White pawn at e3, white pawn at g3 and white pawn at h3. White pawn at d2, white pawn at f2 and white rook at h2. White rook at a1, white bishop at c1, white king at e1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 0. Full move number is 20. Black to move.