Logic Masters Deutschland e.V.

Without prior knowledge of standard xv sudoku rules, the letter V could easily be mistaken for a more/less than chevron. I decided to create a puzzle using this ambiguity and the letter Xs resemblance to a multiplication sign.

Rules

Normal Sudoku rules apply.
Cells separated by a V either sum to 5 or the V represents a greater than sign pointing to the smaller number or both apply.
Cells separated by an X either sum to 10 or multiply together to give one less than a square number or both apply.

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