Sudoku School
Follow a guided lesson path, unlock future skills in order, earn badges, and build toward the Sudoku Skills Diploma.
Master the Grid
Sudoku Skills combines guided lessons, teaching walkthroughs, smart nudges, What-If training, OCR import, saved progress, and visible achievement badges so every puzzle helps you become a stronger solver.
Learn the move, not just the answer. Sudoku School turns each puzzle into a coached practice session with smart nudges, notes, and replay tools that help the logic click.
Badges to diplomaBuild from first wins to candidate logic, branching, famous puzzles, and What-If mastery as every badge moves you closer to the Sudoku Skills Diploma.
The strongest parts of the app are right up front: a guided School path, solver explanations, your own replayable solving history, spoiler-free nudges, What-If exploration, OCR scanning, stats, saves, badges, and a diploma goal.
Follow a guided lesson path, unlock future skills in order, earn badges, and build toward the Sudoku Skills Diploma.
Replay logical fills, nudges, successful guesses, manual moves, and final solved states so the path makes sense.
Manual moves, candidate notes, and inferred explanations turn your own path into a reviewable lesson.
Ask for one useful next step without surrendering the whole puzzle or spoiling the lesson.
Explore alternate cube combinations and see how wrong paths get stuck or contradict.
Choose a Sudoku image, review recognized givens in the browser, validate, and import.
Build a daily habit, track completions, review history, and watch your solving streak grow.
Create an account to unlock Limited access for saved board state, candidate notes, and your manual replay history.
Start from blank boards, random puzzles, Daily Puzzle, and curated practice cards grouped by difficulty and tags.
Install Sudoku Skills for a focused mobile experience while server-backed actions stay online and account-aware.
Print one clean puzzle sheet or generate a full Sudoku Skills PDF Book with puzzles and matching solutions.
Open the library from App tools to start a blank puzzle, generate a random puzzle, play the Daily Puzzle, continue with a recommendation, or choose a curated non-School practice puzzle. School lesson puzzles stay inside the guided School path so the course can preserve lesson order, progress, and badges.
Build confidence with approachable generated and curated puzzles.
Practice candidate thinking, row/column/box constraints, and cleaner manual solving.
Learn how the app explains branching choices without turning the board into a black box.
Basic access lets anyone play, validate, generate a blank puzzle, generate beginner random puzzles, and play the Daily Puzzle. Limited access adds every random difficulty, Solve, Nudge, walkthroughs, saving, Saved puzzles, history, streak foundations, and statistics. Full access adds Sudoku School, badges, the Sudoku Skills Diploma, PDF Book generation, and Sudoku OCR.
Open the preview, see the badge path, and imagine a Sudoku course that tells you what to learn next. Lessons unlock in order, completed lessons can be reviewed, and the full path is designed to grow into Full access with advanced training and the Sudoku Skills Diploma. Dedicated lesson puzzles stay inside the School overlay so progress, badges, and review remain tied to your account.
Many Sudoku fans think best with pencil and paper. The Print action creates a single-page puzzle view, while PDF Book generation creates a server-side downloadable book of 5, 10, or 15 puzzles with a Sudoku Skills cover page, two puzzles per page, headers and footers, page numbers, and numbered solutions at the end.
PDF Books are generated server-side with puzzle pages first and compact numbered solutions at the end.
Try the board right away, create an account when you want Limited access for saved puzzles and stats, and preview Sudoku School to see how badges and the diploma path will turn practice into a course.