Fives Star Sumdoku

A Sumdoku is a Sudoku with clues indicating the sum of the entries in various cells.  In this puzzle that sum is revealed if and only if it is a multiple of five.  Note that this means if there is no star between cells in a cage, then their sum is not a multiple of five.  Use this second idea frequently.  It is necessary for arriving at the unique solution.

You may find a completely different way of looking at this puzzle which doesn't involve sums at all.  You might wish to look at which numbers can be connected by stars, draw a picture (of graph) of the connections, and take sums out of the picture altogether.

I'm posting two versions of the puzzle, allowing you to choose how much of a challenge you would like.  There are some tricky choices in the version with only two cells revealed at the start.


Solution
High Quality PDF (Easy Version)
High Quality PDF (Harder Version)

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