Logic Masters Deutschland e.V.

I challenged myself to make a variation on a few lesser know rulesets. These authors are amazing, and their puzzles linked below can serve as examples.

Sudoku / Latin Square: Digits do not repeat in rows or columns.
Destruction (NXTMaster): All GIVEN regions contain at least one repeat digit. Locate 7 orthogonally connected HIDDEN regions that contain the digits 1-7.

A circle counts how many (orthogonally and diagonally) adjacent cells including itself (up to 9) are in both its given and hidden region.
A square counts how many TOTAL cells overlap between its given and hidden region.

Counting (IcyFruit): A digit in a CIRCLE indicates the TOTAL number of circles and squares that contain that digit. Digits in squares do not necessarily go in circles.
(2 could go in 1 square and 1 circle. 3 could go in 5 squares if it goes in 0 circles)

Click on the image to play


If you are struggling, place a 6 in r2c5. My tester says it's more fun if you don't do this.

Note for setters: Some puzzles should be built top-down, and others bottom-up. Chaos construction is in-between. That means that you should place some constraints, then make a solution that fits them, and finally go back and tweak your constraints until the solution is unique. It took me a while to figure that out, and I want you guys to be better than me.