Logic Masters Deutschland e.V.

10 years ago, my wife (then girlfriend) said yes when I asked her to marry me. This puzzle is dedicated to her and contains a symbol that I created, which is a combination of the symbols, A + N ∞ (A and N are our initials).

This puzzle was featured on Cracking the Cryptic :)

RULES:
- Standard sudoku rules apply.
- Kropki: Digits with a white dot between them are consecutive. Digits with a black dot between them must have the ratio 1:2. Not all dots are given.
- The line is a palindrome, for which the ends have to be determined. The lines crosses itself where it intersects, and the ends do not overlap in the same cell. Digits along a palindrome have to form the same sequence independent of from which end you start.
- Neighboring digits along the line can't be further away in value than two steps. For this constraint, 1 and 9 are considered to be consecutive. (E.g., a 1 can have the digits 8, 9, 1, 2 or 3 as neighbors along the line.)



Enjoy!

Link to solve it online:
Penpa+ (with answer check)
f-puzzles