1rq1k1nr/p3p2p/1p3n2/2pp1p2/P4PP1/RP5N/N1PP1P1P/2BK3R b k - 0 20
FEN state: 1rq1k1nr/p3p2p/1p3n2/2pp1p2/P4PP1/RP5N/N1PP1P1P/2BK3R b k - 0 20 ; Best move: f5g4
The current state of the chess board is: Black rook at b8, black queen at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at e7 and black pawn at h7. Black pawn at b6 and black knight at f6. Black pawn at c5, black pawn at d5 and black pawn at f5. White pawn at a4, white pawn at f4 and white pawn at g4. White rook at a3, white pawn at b3 and white knight at h3. White knight at a2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White bishop at c1, white king at d1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 20. Black to move.