Logic Masters Deutschland e.V.

The following puzzle follows most of the regular rules of sudoku with some slight variation. Please let me know if any of the following rules are unclear and I will happily clarify

The Rules:

Normal sudoku rules apply as in each digit from 1 to 9 may only appear once per region column and row.

The arrows connected to white circles have one arrow that represents a sum of the two number ie (8 = 6 + 2) where 8 would be in the circle. And the other arrow being a minus equation ie. (8 = 9 - 1) where 8 is in the circle 9 and 1 can appear in any order and don't necessarily have to be in sum order

The arrows connected to the grey circle are either both minus or both plus arrows in the same way described above

Digits in the cages must sum to the number in the corner of the cage

Thermometers must increase in digit value along the thermometer

The blue lines have a circle indication with a number. This number represents the minimum distance adjacent digits on the linemust be from one another. So if we have a 5 digit line with 2 in it's circle the (15397) would be a valid solution along the line

enjoy!

You can also play the puzzle online here