Neuer (?) Fund über Sudoku-Geometrie

[DaleERKloss]

I think, this is the right place for it. You can attach any common picture format.

Trying to post but a strange thing happens. Posting from a Window 10 Intel PC.

My post has pictures of various Sudoku puzzles embedded in it but at first when I post it the puzzles are visible but then a second or two later the pictures disappear and are replaced by a big empty space. I have tried cut & pasting a .png file, and copying the image from a Word document but the picture always disappears.

Is there a special procedure for including pictures in the blog ???

An alternative I could do would be to include an attached PDF file if the blog supports attached files.

Thanks in advance. Dale E. Kloss