1nb1kbnr/1p1pppp1/r1p4p/7P/pR6/P1P3P1/RP1PP3/1NBQ1KN1 b k - 1 10
FEN state: 1nb1kbnr/1p1pppp1/r1p4p/7P/pR6/P1P3P1/RP1PP3/1NBQ1KN1 b k - 1 10 ; Best move: g8f6
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black rook at a6, black pawn at c6 and black pawn at h6. White pawn at h5. Black pawn at a4 and white rook at b4. White pawn at a3, white pawn at c3 and white pawn at g3. White rook at a2, white pawn at b2, white pawn at d2 and white pawn at e2. White knight at b1, white bishop at c1, white queen at d1, white king at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 10. Black to move.