Logic Masters Deutschland e.V.

Welcome to my April Fool’s series! I encourage you to take a look at “Muscle Memory I” before attempting part II. This puzzle is dedicated to everyone who had a hard time with the first installment. I hope that you like this ruleset better! They’re all the usual variants, no shenanigans included. Rather, this page is different in what it excludes. Will you be able to find it?

Rules:

Sudoku: Place the digits 1-9 in the grid so that no digit repeats in any row, column or marked 3x3 box.

Killer cages: Digits cannot repeat inside a cage and must add up to the value indicated in the top left corner of the cage.

German whisper lines: Adjacent digits in a green German whisper line must differ by at least 5.

Odd/even digits: Cells marked with grey circles contain odd digits. Cells marked with grey squares contain even digits.

Renban lines: Digits in a purple renban line must form a set of non-repeating consecutive digits in any order.

Palindromes: Digits in a grey palindrome line must read the same from either end.

Region sum lines: digits in a blue region sum line have the same sum in each 3x3 box that the line passes through. The sum may be different in different lines.

Arrows: Digits along an arrow shaft add up to the digit on the attached circle.

Thermometers: Digits along a thermometer must strictly increase from the bulb to the tip.

XV sums and Kropki dots: Not all of these are necessarily given. Digits separated by a black dot are in a 2:1 ratio. Digits separated by a white dot are consecutive. Digits separated by an X add up to 10.. Digits separated by a V add up to 5.

Click here to see all my puzzles, including “Muscle Memory I”