Classic
Sudoku Variants
Classic Sudoku
Classic Sudoku is the most popular form of sudoku. Fill the grid so that each number appears exactly once…
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Non-Consecutive Sudoku
Non-Consecutive Sudoku adds an extra challenge to the classic puzzle. Follow the standard Sudoku rules, but make sure that horizontally and vertically adjacent cells never contain consecutive numbers. In this wrap-around version,…
LEVELMediumBUILDSLogic, concentration, candidate elimination, number relationships, deductive reasoning
Also known as: Nonconsecutive Sudoku, Non-Consecutive Sudoku
HOW IT WORKS
What is Non-Consecutive Sudoku?
Non-Consecutive Sudoku adds an extra challenge to the classic puzzle. Follow the standard Sudoku rules, but make sure that horizontally and vertically adjacent cells never contain consecutive numbers. In this wrap-around version, cells on opposite edges of the grid are also treated as adjacent.
THE RULES
Simple rules, satisfying logic
Keep these rules in mind while solving.
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Follow the standard Sudoku rules: each row, column, and box must contain every number exactly once.
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Orthogonally adjacent cells must not contain consecutive numbers.
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Numbers are consecutive when they differ by exactly 1, such as 2 and 3 or 5 and 6.
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Cells that touch only at a corner are not considered adjacent.
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The non-consecutive rule applies to every pair of horizontally or vertically adjacent cells.
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The grid wraps around its edges: the first and last cells of each row are treated as adjacent.
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The first and last cells of each column are also treated as adjacent.
KEEP EXPLORING
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