Logic Masters Deutschland e.V.

Rules
Normal sudoku rules apply.
Along green lines, adjacent digits differ by at least 5.
There are six snakes in the grid, each consisting of a line moving either orthogonally or diagonally through centers of cells. No cell may be visited more than once - neither by the same snake nor by different snakes - but two snakes may cross each other at a cell corner.
The endpoints of each snake are given as a pair of color-matched circles.
Additionally, snakes act as thermometers: digits along a snake increase from one end to the other.
Three of the six snakes have equal sum of digits (including both ends).

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