r1b1q2r/pp1pbBk1/1p3npB/1n2pp1p/2P3P1/2N4P/P1Q1PP2/4K1NR b K - 5 20
FEN state: r1b1q2r/pp1pbBk1/1p3npB/1n2pp1p/2P3P1/2N4P/P1Q1PP2/4K1NR b K - 5 20 ; Best move: g7f7
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black bishop at e7, white bishop at f7 and black king at g7. Black pawn at b6, black knight at f6, black pawn at g6 and white bishop at h6. Black knight at b5, black pawn at e5, black pawn at f5 and black pawn at h5. White pawn at c4 and white pawn at g4. White knight at c3 and white pawn at h3. White pawn at a2, white queen at c2, white pawn at e2 and white pawn at f2. White king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 5. Full move number is 20. Black to move.