1rbqkbnr/pp2pp2/6p1/2pp3p/1PP5/P4NP1/3PP1BP/RNBQ1K1R b k - 0 10
FEN state: 1rbqkbnr/pp2pp2/6p1/2pp3p/1PP5/P4NP1/3PP1BP/RNBQ1K1R b k - 0 10 ; Best move: h5h4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7 and black pawn at f7. Black pawn at g6. Black pawn at c5, black pawn at d5 and black pawn at h5. White pawn at b4 and white pawn at c4. White pawn at a3, white knight at f3 and white pawn at g3. White pawn at d2, white pawn at e2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 10. Black to move.