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As I always say, it's been a while since I've made a puzzle. Here's a fun little one. I hope you enjoy.

Ordinary Sudoku Rules Apply

Additionally, cells that appear in the same position relative to their box form a set of the digits 1-9 (Disjoint Groups).

Clues outside the grid give the sum of the digits along the indicated diagonal (digits may repeat if allowed by other rules).

The digits along an arrow sum to the value in the arrow's circle.

That's it! Enjoy! :) You can play it here.