Logic Masters Deutschland e.V.

I'm not an expert solver, let alone setter, but I thought I would have a go at setting a puzzle. I always like sudoku's with a lot of additional rules, so here's mine!

The rules:

1. Normal sudoku rules apply
2. Normal killer sudoku rules apply, meaning the digits in a 'cage' have to sum up to the small number in the upperleft corner of that cage. Digits can't repeat in a cage.
3. The numbers on the top of the grid are sandwich clues, meaning it indicates the sum 'sandwiched' between the 1 and the 9.
4. The numbers on the right of the grid are X-sums clues. Meaning the number indicates the sum of the first X digits, where X is the first digit in that row (seen from the right).
5. Normal thermo sudoku rules apply, meaning the digits have to increase from the bulb to the end of the thermometer.
6. The grey line in the upperright corner is a palindrome
7. The white dots inbetween cells indicate consecutive digits.
8. The black dots inbetween cells indicate a difference of 2.
9. The arrow in box 6 contains digits which sum up to the number in its corresponding circle.
10. The red squares in the grid is an extra region, meaning it contains the digits 1-9 exactly once.
11. The quadruple of digits in a circle show the digits surrounding that circle.
12. Odd digits are marked with a grey circle.
13. Even digits are marked with a grey square.


F-puzzle link: https://bit.ly/2Psm1aY
Please ignore the red numbers when you allegedly fill in a wrong number. The software isn't made for X-sums or 2 difference clues!!


I hope you'll enjoy the puzzle!