Logic Masters Deutschland e.V.

Normal sudoku rules apply. There are three extra regions in the grid - lavender, green, and yellow - each requiring the digits 1-9 once each. Digits in a cage must sum to the little number in the upper left, and may not repeat in the cage. Numbers outside the grid indicate the sum of the digits on their indicated diagonal. Digits on these diagonals may repeat when otherwise allowed. I think this puzzle is 3 stars out of 5 for difficulty for many solvers. As always, comments welcome. Thanks!

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