Daily puzzles
A fresh puzzle every day. Start a streak, keep it alive.
Bored of plain Sudoku?
Wisdoku is a fresh take on number puzzles — a smarter, calmer blend of math and logic that trains your brain every day.
Like Sudoku, each puzzle challenges you to place unique numbers in every row and column. But there's a twist: puzzle regions must also hit a target using math operations like addition, subtraction, multiplication, or division. It's a game that keeps your mind sharp while helping you unwind.
Whether you're chasing the clock or settling into a peaceful session, Wisdoku adapts to your pace. Solve daily puzzles and see how your time stacks up on global leaderboards, or relax in zen mode with soothing visuals and no distractions. With customizable themes, intelligent design, and zero ads.
How to play
Two rules. The grid does the rest.
Unique numbers
Every row and column gets each number exactly once. No repeats. No exceptions.
Hit the target
Each outlined region has to crunch its numbers down to the target with a single math operation. Pick wrong and the whole grid unravels.
Add
Subtract
Multiply
DivideMore than a grid
A quick coffee-break solve or a long, meditative session. Your call.
Three difficulties
Easy, medium, hard. Every puzzle scored to match your level.
Sizes 3×3 to 7×7
Learn on small boards. Graduate to bigger challenges.
Zen mode
No timer. No counter. Just you and the puzzle.
Achievements
Earn Game Center achievements as you play.
Share any puzzle
Send a link. Friends play right in their browser.
Track your stats
Play time, perfect solves, accuracy. Watch it all climb.
No ads. Ever.
No banners. No pop-ups. No tracking. Just the puzzle.
Many themes. Light or dark.
Pick a palette that fits your mood. Each one hand-tuned for calm, legible solving.
Mono
Sunburst
Rose
Cobalt
Apricot
Emerald
Lavender
A pure puzzle experience
Whether you're a Sudoku fan or just love a good brain teaser, Wisdoku is built to be played every day.
Send feedback or questions to care@radlad.dev.