Relaxing Sudoku and Futushiki

Settle your brain into a calm rhythm while Sudoku and Futushiki grids slowly reveal their secrets one logical deduction at a time.

There's something almost meditative about filling a grid until every row, column, and block falls into place. Relaxing Sudoku and Futushiki gives you two flavors of that calm. Sudoku is the classic 9x9 brain teaser you already know, while Futushiki is the cheeky sibling that throws greater-than and less-than symbols between cells. Both use the same point-and-click (or tap) controls, so switching between them feels effortless. The beauty is in the little deductions. In Sudoku, you'll spot a naked single in a row and watch the rest of the box unlock. In Futushiki, a single inequality sign can quietly eliminate three candidates at once. I kept grinning the first time I realized a 4 had to be greater than a 2, which meant the 5 couldn't sit next to it — that tiny aha is the whole game. The grid sizes stay manageable (Futushiki often runs 5x5 or 6x6), so you're never stuck for an hour unless you want to be. There's no timer breathing down your neck, no lives to lose, no ads popping up between puzzles. Just clean white cells, soft colors, and a number pad that responds the way you expect. I finished a Sudoku, thought 'one more,' and suddenly it was 40 minutes later. That's the sign of a puzzle game that respects your pace. If you want a mental stretch without the stress, this is the one to leave open in a tab.

Point and click or tap on mobile devices and tablets.

In Futushiki, scan the inequality signs first — they often lock a row's highest and lowest numbers early. Use pencil marks in Sudoku even on easy grids; it exposes hidden singles faster than scanning every row. If a Futushiki cell has two candidates but one breaks a chain of greater-than signs, it's wrong. Tap an empty cell twice to clear a wrong number quickly on mobile. Start with the smallest Futushiki grid available before jumping into 6x6. Don't rush: since there's no timer, walk away and come back when a puzzle stalls.

Q: Is Relaxing Sudoku and Futushiki free? A: Yes, it's completely free to play in your browser with no paywalls or premium unlocks. Q: Can I play Relaxing Sudoku and Futushiki on my phone? A: Absolutely. The tap controls are built for touchscreens, so it works smoothly on mobile and tablet browsers. Q: Do I need to download or install anything? A: No download needed. The game runs directly in your web browser as HTML5. Q: Does the game have a timer or penalty for mistakes? A: No timer or mistake penalties. You can take as long as you want and correct entries anytime. Q: What's the difference between Sudoku and Futushiki? A: Sudoku is a 9x9 number puzzle; Futushiki adds greater-than and less-than clues on a smaller grid. Q: Can I save my progress? A: Your current puzzle progress usually stays in your browser tab, but closing it may reset unsolved grids.