rnbq1bn1/p3pkpr/8/1ppp1p1p/3P4/1N3NPP/PPPBPP2/1R1QKB1R b K - 4 9
FEN state: rnbq1bn1/p3pkpr/8/1ppp1p1p/3P4/1N3NPP/PPPBPP2/1R1QKB1R b K - 4 9 ; Best move: c5c4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at e7, black king at f7, black pawn at g7 and black rook at h7. Black pawn at b5, black pawn at c5, black pawn at d5, black pawn at f5 and black pawn at h5. White pawn at d4. White knight at b3, white knight at f3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2, white bishop at d2, white pawn at e2 and white pawn at f2. White rook at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 4. Full move number is 9. Black to move.