Why Sudoku variants are worth trying
If you've mastered classic Sudoku, variants are the natural next step. Killer Sudoku adds cage sums that give you extra information — and extra constraints. Sudoku-X adds diagonal rules. Jigsaw Sudoku replaces the 3×3 boxes with irregular regions. Each variant forces you to think differently and builds solving skills that transfer back to classic puzzles.
These sites offer the best collections of variant puzzles, from daily Killer challenges to massive archives of hand-crafted competition-grade grids.
Logic Masters Germany
The premier portal for hand-crafted Sudoku variants.
Grandmaster Puzzles
Exceptional puzzles from the world's best setters.
SudokuPad
The premier app used by Cracking the Cryptic for variants.
F-Puzzles
The ultimate tool for creating and sharing your own Sudoku variants.
Killer Sudoku (Easybrain)
Master the logic of cages and sums with this popular variant.
Killer Sudoku Online
A reliable hub for daily Killer Sudoku challenges.
Conceptis Puzzles
Large variety of logic puzzles including high-quality Sudoku.
Daily Jigsaw Sudoku
Focuses exclusively on irregular regions (jigsaws).
Kakuro.com
Sudoku's math-heavy cousin, perfect for logic fans.
Sudoku-Puzzles.net
Includes unique variants like Sudoku X and Hyper Sudoku.
Sudoku Variations
A dedicated home for non-classic grid types.
Sudoku X (Daily)
Puzzles with the added constraint of the two main diagonals.
Jigsaw Sudoku Online
Endless irregular puzzles for those bored of 3x3 boxes.
Puzzle Mix
A mix of classic and variant Sudoku grids.
Wordoku.org
Sudoku using letters instead of numbers.
Find Even More Sudoku Resources
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