Logic Masters Deutschland e.V.

This is a rule I came up with, I hope you like it.

Rules:

Normal sudoku rules apply.

Clues outside the grid are shifted x-sums, which means that starting from the Nth cell (seen from the side of the clue), where N is the first digit in the grid (seen from the side of the clue) there is a sequence of X digits adding up to the clue, where X is the first of those digits (the digit in the Nth cell).

In other words: they're X-sums, but instead of starting at the start of the row/column, the first digit (N) indicates where it starts.

Example: if r8c9 was a 6, then r8c4 would be a 2 and r8c3 would be a 1.

Have fun!

Try it here.

As always, comments and ratings are highly appreciated.