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Isn't this just sudoku with the squares morphed into irregular shapes?

• dhooper 2y ago
  No, the irregular shape allows run constraints that wouldn't be possible on a grid using rows/columns/lines.
• kzrdude 2y ago
  It's "weaker" and different constraints than a sudoku. A regular sudoku requires all 1-9 numbers in three containers: in the box, in the row and in the column. This variant still has the 1-9 boxes, but instead of rows and columns it has lines, and the lines do not encompass all numbers 1-9. They only say numbers can't repeat on that line. You can't use completeness for the lines (It would be something like "all numbers 1-9 must occur along a line"). I suspect that the missing completeness is a drawback of this sudoku variant, it makes it a bit less interesting in the long run.