Logic Masters Deutschland e.V.

This is my attempt at a "miracle" puzzle. Enjoy!

Normal Sudoku rules apply.

Digits cannot repeat along either diagonal.

Identical digits cannot be a knight's move apart.

A "disjoint groups" rule is in effect; i.e. the same digit cannot appear more than once in the same position inside a box.

Digits in a cage must sum to the cage's total.

Digits along the diagonal must sum to the given total at the bottom of the puzzle, and may repeat.

Digits on an arrow must sum to the number at the arrow's base.

Digits on the thermometer increase from the bulb.

There must be a 1:2 ratio between digits surrounding the black dot.

The gray lines are palindromes; digits on each of these lines must read the same forwards and backwards.

https://f-puzzles.com/?id=yk5hfljb