This year saw the release of my unique take on KenKen(TM)/Calcu-doku puzzles: the book TomTom Puzzles. "Humanizing" calcu-doku puzzles, by creating more interesting puzzles to look at, as well as more interesting puzzles to solve, has been a real signature of my recent construction. I explored many types of visual themes for

Today's date is a really good one for making another themed challenge using just 12 and 24. This puzzle is a bit hard, but if no one has a walk-through posted in the comments by this weekend, I'll start putting up some hints to get started. Happy Puzzling!

Rules: Enter a digit from 1 to 8 into each cell so that no number repeats in any row or column. The number in the upper-left of each bolded cage must equal the value of a mathematical operation (+ or x) applied to all the digits in the cage. Digits can repeat in a cage, provided they don't repeat in a row/column.

**these**puzzles, and one of the common ones not involving region shapes is having just one or two clue values repeated throughout the puzzle. For example, I made a 24/7 puzzle that was fit to be solved any time on any day, and a "Dirty Dozen" puzzle with exactly twelve 12s and no other clues.Today's date is a really good one for making another themed challenge using just 12 and 24. This puzzle is a bit hard, but if no one has a walk-through posted in the comments by this weekend, I'll start putting up some hints to get started. Happy Puzzling!

Rules: Enter a digit from 1 to 8 into each cell so that no number repeats in any row or column. The number in the upper-left of each bolded cage must equal the value of a mathematical operation (+ or x) applied to all the digits in the cage. Digits can repeat in a cage, provided they don't repeat in a row/column.

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