1n2k2r/2p1pp1p/rp3np1/p1Pp2b1/1P1P1q2/2N1PP2/1R1Q1KBP/3b2NR b k - 7 20
FEN state: 1n2k2r/2p1pp1p/rp3np1/p1Pp2b1/1P1P1q2/2N1PP2/1R1Q1KBP/3b2NR b k - 7 20 ; Best move: f6g4
The current state of the chess board is: Black knight at b8, black king at e8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black rook at a6, black pawn at b6, black knight at f6 and black pawn at g6. Black pawn at a5, white pawn at c5, black pawn at d5 and black bishop at g5. White pawn at b4, white pawn at d4 and black queen at f4. White knight at c3, white pawn at e3 and white pawn at f3. White rook at b2, white queen at d2, white king at f2, white bishop at g2 and white pawn at h2. Black bishop at d1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 7. Full move number is 20. Black to move.