Rey's Puzzles
Difficulties are marked according to the Logic Masters Germany scale. These are just my best guesses, so please let me know if you have a different opinion!
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Equations 2 #
Published on May 21, 2026.
Difficulty: 2
Digits in cells separated by +, x, ^, and = signs form valid arithmetic operations. Furthermore, < signs denote inequalities between digits. (All arithmetic operations involve only one-digit numbers.) Classic sudoku rules apply.
6x6 Irregular Equations #
Published on May 21, 2026.
Difficulty: 1
Tags: Sudoku, Equations, Irregular
Choose and place 6 distinct digits from 1-9 in each cell such that no row, column, and indicated region has two copies of any digit. Additionally, the digits must fulfill the indicated equations.
Equations #
Published on January 7, 2023.
Difficulty: 2
Digits in cells separated by +, x, and = signs form valid arithmetic operations. (All arithmetic operations involve only one-digit numbers.) Classic sudoku rules apply.
