What is Anti-Knight Sudoku?

Anti-Knight Sudoku is a Sudoku variant that adds one rule on top of normal Sudoku: no two cells a knight's move apart (an L-shape of two squares one way and one square the other, like a chess knight) may contain the same digit. It is also called Knight Sudoku.

How do I play Anti-Knight Sudoku?

Fill the grid so every row, column and box contains each digit exactly once. Additionally, a digit can never repeat in any of the 8 cells a knight's move away. Tap a cell, then tap a digit to place it. Selecting a cell glows its knight-neighbours so you can see the constraint.

Is Anti-Knight Sudoku free?

Yes. Anti-Knight Sudoku on GameZipper is 100% free to play in your browser with 27 puzzles across Beginner to Master tiers. No download or sign-up required.

How many levels does Anti-Knight Sudoku have?

There are 27 hand-crafted levels across six tiers: Beginner, Easy and Medium use a 6x6 grid, while Hard, Expert and Master use the classic 9x9 grid. Each puzzle has a unique solution verified by an independent solver.

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Anti-Knight Sudoku

Fill the grid · no repeats a knight's move apart · 27 unique puzzles

Selected cell Knight moves (no repeat)

Tier: —Time 0:00Lvl —

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