Oops! I'm really having trouble with these little killer puzzles. Last time I forgot to place the direction each arrow points. This time, I have the arrows, but forgotten the totals! All I remember is that they were the first ten prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. Can you help me?
F-puzzles solving link https://f-puzzles.com/?id=yxjgurtn
Solution code: The row that starts with the next prime number, followed by the row above it which contains the next prime number:
on 9. September 2020, 23:39 by bob
What an elegant puzzle!
on 7. September 2020, 17:52 by Thorsby
F puzzles link only have 2 arrows at the bottom and some green squares.
Reply: Yes, I'm aware of that. F-puzzles does not have the ability to put arrows in both directions. The green colored squares intended to remind the solver that that particular diagonal goes in both directions. Personally, when i played around with it, i added a second diagonal on the right side of the grid, but i didn't want to do that for the general public because I was afraid someone would think a separate number had to go there. The image was 'photoshopped' to look right.