Logic Masters Deutschland e.V.

9-steps Tutorial: Killer Cages

Here is a tutorial sudoku teaching the killer cages constraint and aimed at first-timers. It is accessible, though not the easiest puzzle. When following the steps, it is build to showcase some common killer logic you will find in almost any killer sudoku there is! However, if you feel like it, or for more experienced solvers, feel free to solve it any way you like, there are no rules!

Rules: Normal sudoku rules. The digits in a cage must sum to the number in its upper left corner (if given). Digits may not repeat within a cage.

Link: CtC app

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