4 Choose 2
Rules:
Normal sudoku rules apply. Digits separated by an X sum to 10. Grey lines must each follow exactly two of the following four rules:
-German Whisper: adjacent digits on the line must have a difference of at least 5.
-Ten Line: the line consists of one or more contiguous groups of cells, each of which sums to 10. These groups of cells cannot overlap.
-Palindrome: the sequence of digits along the line reads the same in either direction.
-Region sum: the sum of the digits along the line must be the same within each 3x3 box the line passes through.
Every grey line must follow a different pairing of two rules e.g: if one line is a Palindrome and a German Whisper, another line cannot be both a Palindrome and a German Whisper.
Solution code: Row 7 followed by row 9.
on 3. April 2024, 01:14 by Star216
Very nice! The more challenging part for me was the sudoku at the end and not figuring out and using the lines oops
on 28. March 2024, 16:25 by keenbowl
That was challenging but very fun, and brilliant logic, thanks for setting&sharing!
on 28. March 2024, 15:10 by Prof.Dori
Fixed the link!