Hints that teach step by step, faster new games and smoother keyboard play. • Hints now open in four steps: first the technique and where to look, then the key cells, then a guided walkthrough, and only then the move itself. Each step costs a quarter of a full hint, so you only pay for the help you use. • Hints head straight for the next digit you can place. Pointing, box-line and subset hints now name the exact box, row or column and the cells they clear. • Continue and Reveal work on every slide of a hint. • New puzzles are generated in the background, so starting even the hardest game no longer freezes the app. • Playing with a hardware keyboard on iPhone and iPad no longer keeps the processor busy. • Links from the App Store and our website open the app with a matching difficulty ready to start.

Hints now teach instead of telling. Each one names the technique, lights up the cells that force the move, and walks you through the reasoning step by step before anything is placed. On phones the hint player now fills the space below the board as a fixed panel, so the text is bigger and nothing jumps between steps. • Undo and redo, with honest scoring: an undo hands back exactly the points its placement earned, so replaying the same cell can never pay twice. • Hints stay off Nightmare, Hell and Infinity unless you switch them on, and both hints and undo are hidden in Hardcore. • Daily challenge on its own tab: the same puzzle for everyone each day, with a current and best streak and your recent solves. • Difficulty now means what it says — every board is generated until it really needs the techniques its level promises. • Kinder to hands and eyes: bigger touch targets on the board and number pad, a reduce motion setting, larger digits, Calm play without a score, and full respect for your device text size. • New High contrast and Colorblind safe themes, with every board color pair checked against WCAG AA and states told apart by lightness and outlines instead of hue. • Full screen reader support: cells, digits and controls announce their role and state, and hint steps, mistakes and wins are spoken as they happen. • The Notes control now sits alone at the thumb edge, mirrored for left-handed play, and on desktop the hint panel finally has a readable size. • Fixed: moves built from several logical steps are credited to the technique behind them instead of counting as guesses, auto-candidates now drop what a hint eliminated, cells no longer keep the highlight or digit color of an earlier move, and the white digit on the selected cell is back. • Faster: the web version paints straight away instead of waiting for the whole download, and the app itself is 5.5 MB smaller.

Infinity is here: 100 world-record Sudoku puzzles, rated SE 10.4 to 11.9. Arto Inkala's Everest and AI Escargot, Golden Nugget, Platinum Blonde, Kolk, Patience. Most people never finish one. • Every puzzle now shows its Sudoku Explainer rating on the 1.0 to 12.0 scale, in the level pill on the board, in history and on shared links. A built-in explainer tells you what the number means. • Hell has been re-curated: 1,544 verified 17-clue puzzles, every one rated SE 6.6 or higher. No more "hardest" boards that fall to simple singles. • Statistics, redesigned: your hardest solve, recent average difficulty and most played level, the full SE spectrum of everything you've finished, and your arsenal of techniques with usage counts. • History cards now carry a technique summary, and the replay screen is cleaner. • Full keyboard control on the web: arrows to move, digits to place, Space or N for pencil mode, Shift and a digit for candidates, A for auto-candidates. • Fixed: opening a shared link no longer clears your statistics. • Fixed: quitting a game now works in every language. • Faster: Hell games start instantly, and history loads without stalling.

Infinity is here: 100 world-record Sudoku puzzles, rated SE 10.4 to 11.9. Arto Inkala's Everest and AI Escargot, Golden Nugget, Platinum Blonde, Kolk, Patience. Most people never finish one. • Every puzzle now shows its Sudoku Explainer rating on the 1.0 to 12.0 scale, in the level pill on the board, in history and on shared links. A built-in explainer tells you what the number means. • Hell has been re-curated: 1,544 verified 17-clue puzzles, every one rated SE 6.6 or higher. No more "hardest" boards that fall to simple singles. • Statistics, redesigned: your hardest solve, recent average difficulty and most played level, the full SE spectrum of everything you've finished, and your arsenal of techniques with usage counts. • History cards now carry a technique summary, and the replay screen is cleaner. • Full keyboard control on the web: arrows to move, digits to place, Space or N for pencil mode, Shift and a digit for candidates, A for auto-candidates. • Fixed: opening a shared link no longer clears your statistics. • Fixed: quitting a game now works in every language. • Faster: Hell games start instantly, and history loads without stalling.

Hell difficulty is here — the hardest tier suuudokuuu has ever shipped. Every Hell puzzle is a hand-verified 17-clue grid, filtered so nothing that falls to simple singles slips through. Bring real technique. • Full theme engine: Classic, Gold and Newspaper presets, plus a custom editor with a live board preview. Contrast checks keep your colors readable in light and dark. • Better replays: share any moment of a game, and drag your way through the solution steps with the new scrubber. • Challenge mode: review a summary of your run before you share it, and "play again" keeps your full setup. • Confetti for every win. • Sharper layout on tablets and web. • Rare crash fixed, faster new games, and shared puzzles now score at their true difficulty.

new liquid glass design!

- Added challenge mode statistics - Fixed several bugs

Challenge your friends and prove you’re the best!

- Bug fixes - Scoring improvements and help page - Group spacing setting

We have added manual hints! Solve complex puzzles with ease, share your puzzle with your hints!

Smooth animations without the lags, Really hardcore mode without hints, improved puzzle generation algorithm

- new themes: Gold and Gray - candidate highlights - more settings to make UI comfortable for you - bug fixes and improvements!

- Hardcore mode - Share your puzzle - Improved performant animations

- UI improvements and bug fixes - Added internalisation, Ukrainian, Spanish, Deutsch, French languages! - Share you puzzle with your friends and opponents!

Auto candidate mode and bug fixes!

Dancing links are here! Only unique puzzle generation, difficulty levels improvements

Bug fixes and updates!

bug fixes and improvements

- added game pause - fixed minor bugs - optimised animations and rendering

Fixed bugs, added animations, optimized rendering and improved and refactored overall code