Sudoku Coach: Learn Techniques

Learn Sudoku the way a course teaches it: one technique at a time, with lessons, exercises that check your reasoning, and an exam for each level.

Sudoku Coach is a course that teaches you to solve Sudoku by logic, one technique at a time. It checks your reasoning, not just your digits: after each move you name the technique you used and point at the cells that prove it.

A COURSE, NOT A PILE OF PUZZLES Six levels take you from the rules to X-Wings and XYZ-Wings. Each level teaches a small family of techniques, then a short exam checks you've got them. Pass it to earn the level's belt and a private certificate. • Level 1 · Foundations: the rules and the last remaining cell • Level 2 · Scanner: hidden singles • Level 3 · Note-taker: writing candidate notes and naked singles • Level 4 · Pattern Spotter: pointing pairs, box-line reduction, naked and hidden pairs • Level 5 · Subset Solver: naked and hidden triples • Level 6 · Fish & Wings: X-Wing, Swordfish, XY-Wing and XYZ-Wing

EVERY LESSON, STEP BY STEP • The idea: the rule, why it works and the trap people fall into • A worked example you step through one move at a time, on a position that really needs the technique • Three exercises where the help fades, until you spot it on your own • A quick recap question so it sticks

PROVE IT Practice rounds don't tell you what to look for. They ask for the next logical move. Find it, say which technique you used, and tap the cells that prove it. Only a right move with the right reasoning counts. Sudoku Coach accepts every valid way to make a move, not just the solver's first.

SPOT THE MISTAKE A student made three moves and one of them is wrong. Find it and say why: a repeated digit, a technique that rules it out, or a guess that nothing proved yet. Checking someone else's work builds the habit of checking your own.

HINTS THAT TEACH Stuck in a puzzle? A hint first tells you which technique to use, then where to look. Ask "Why?" to see the full reasoning, and fill the number in only when you want to. Each mistake is explained, and after each puzzle a review walks through the logical solve step by step.

START AT THE RIGHT LEVEL Already solve on paper? Take the optional placement test, and the course starts where you are.

KEEP IT FRESH Techniques come back for review just before you'd forget them. Track how well each one has stuck and what's left before your next exam. Missing a day never resets anything.

SCAN A PUZZLE Photograph a Sudoku from a newspaper or a book, check the digits, and solve it with the same teaching hints.

PRIVATE BY DESIGN Feedback is written by Apple Intelligence on your device where available. Your progress stays on your device and in your own iCloud. No leaderboards, no public comparisons.

ALSO • iPhone, iPad and Apple Watch • Widgets, Live Activities, Siri and Shortcuts • VoiceOver, Voice Control, Dynamic Type and Dark Mode • Focus practice: a calm puzzle with ambient sound and no timer

Levels 1 to 4 are free, with one ad on the Practice tab. Premium is a one-time purchase that unlocks Levels 5 and 6 and removes ads. Without it, you can open a Level 5 or 6 lesson by watching a short video.

Terms of Use: https://sudokucoach.adept-labs.com/terms/ Privacy Policy: https://sudokucoach.adept-labs.com/privacy/