rnbq1b1r/2p1ppB1/4k3/pP1p3p/1P2P1n1/6P1/1RPP1P1P/1N1QKBNR b K - 0 10
FEN state: rnbq1b1r/2p1ppB1/4k3/pP1p3p/1P2P1n1/6P1/1RPP1P1P/1N1QKBNR b K - 0 10 ; Best move: f8g7
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 rook at h8. Black pawn at c7, black pawn at e7, black pawn at f7 and white bishop at g7. Black king at e6. Black pawn at a5, white pawn at b5, black pawn at d5 and black pawn at h5. White pawn at b4, white pawn at e4 and black knight at g4. White pawn at g3. White rook at b2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White knight at b1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 10. Black to move.