Logic Masters Deutschland e.V.

This puzzle is one of my submissions for this month's Monthly Puzzle Prompt on the CTC Discord server, the theme being: Sequels. I had recently published a puzzle with a new (to me anyhow) concept of friendly and anti-friendly digits on palindromes. It was rather busy (way too many colors) and I really wanted to see if I could do better. I am really pleased with this result, with perfect symmetry and no need for other constraints.



Friendly palindromes (digits on green lines)
- must match at least one of the row, column or box numbers that the palindrome occupies (i.e. the palindromes in boxes 1 and 2 could only be from 11, 22, 33 or 44).
- are 2 cells long (don't combine with other friendly palindromes)
- All friendly palindromes are given

Enemy palindromes (digits on red line segments)
- cannot match their row, column or box number (i.e. R3C2 cannot be a 3, 2 or 1)
- are 5 cells long (solver must discover which 2 cell and 3 cell segments combine to make the 5 cell palindromes)
- are the same digit on either side of a box crossing (i.e. R3C1 and R4C2 are the same digit)
Not all enemy palindromes are necessarily given

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