ZUDOKU Blog
Beginner rules / 14 min readHow to Play Sudoku: Rules, Setup, and Your First SolveLearn rows, columns, boxes, notes, singles, common beginner mistakes, and a simple first-puzzle routine.
Training path
Build skill in order
These guides are arranged like a training path: learn the rules, trust singles, use notes, avoid guessing, then expand into Killer and other ZUDOKU modes.
Published guides
Sudoku articles
Beginner rules / 14 min read
How to Play Sudoku: Rules, Setup, and Your First Solve
Learn rows, columns, boxes, notes, singles, common beginner mistakes, and a simple first-puzzle routine.
Strategy roadmap / 16 min read
Sudoku Strategy Roadmap: From Singles to Advanced Patterns
A practical order for learning Sudoku strategy, from scanning and singles through candidates, pairs, box-line logic, and advanced pattern recognition.
Logic solving / 15 min read
How to Solve Sudoku Without Guessing
Learn how to keep every Sudoku move logical, recover when stuck, and avoid the guess-and-check loop that creates mistakes.
Candidate notes / 15 min read
Pencil Marks in Sudoku: Candidate Notes That Actually Help
A practical guide to Sudoku pencil marks, candidate cleanup, Snyder notation, full notation, and note habits that reduce mistakes.
Beginner technique / 14 min read
Naked Singles and Hidden Singles: The First Real Sudoku Techniques
Understand the difference between naked singles and hidden singles, how to scan for each, and how they power clean Sudoku solves.
Killer Sudoku / 16 min read
Killer Sudoku Rules: Cages, Sums, and the 45 Rule
Learn Killer Sudoku rules, cage sums, no-repeat logic, combination thinking, and the 45 rule before playing ZUDOKU Killer mode.
Awards / 22 min read
ZUDOKU Awards System Guide: How to Collect 500 Sudoku Awards
A detailed guide to ZUDOKU's 500-award system, including beginner paths, Daily Dojo goals, PvP progress, mode mastery, and smart award planning.
Scanning / 14 min read
Sudoku Scanning Techniques: Rows, Columns, Boxes, and Digits
Learn practical Sudoku scanning routines that reveal singles before the grid becomes crowded with notes.
Jigsaw Sudoku / 14 min read
Jigsaw Sudoku Strategy: How to Read Irregular Regions
Learn how Jigsaw Sudoku changes region scanning and how to avoid carrying 3x3-box habits into irregular puzzles.
Speed solving / 14 min read
Sudoku Speed Solving Without Rushing: Faster, Cleaner Boards
Improve Sudoku solve time by tightening recognition, not by guessing or tapping faster.
Thermo Sudoku / 13 min read
Thermo Sudoku Rules and Strategy: Read the Thermometers First
Learn Thermo Sudoku rules, opening scans, bulb logic, and candidate ranges for cleaner solves.
Intermediate strategy / 15 min read
Hidden Pairs and Triples in Sudoku: Finding the Candidates You Cannot See Yet
Learn hidden pairs and hidden triples, why they are harder to see, and how to reveal them with clean notes.
Daily Dojo / 13 min read
Daily Dojo Sudoku Training: A Better Way to Practice Every Day
Build a Daily Dojo routine for faster, cleaner Sudoku solves without turning practice into a grind.
Sudoku X / 13 min read
Sudoku X Strategy: How Diagonals Change the Solve
Use the two Sudoku X diagonals as extra houses without forgetting classic row, column, and box logic.
Killer Sudoku / 15 min read
Killer Sudoku Combinations: The Cage-Sum Toolkit
Use cage combinations, low and high sums, and the 45 rule to make Killer Sudoku easier to read.
Accuracy / 14 min read
Sudoku Mistake Prevention: Accuracy Habits for Clean Solves
Reduce Sudoku mistakes with proof checks, note cleanup, and a simple recovery routine.
Hyper Sudoku / 13 min read
Hyper Sudoku Strategy: Four Extra Regions, More Hidden Singles
Use Hyper Sudoku's extra regions to find hidden singles, eliminate candidates, and avoid missed constraints.
Intermediate strategy / 15 min read
Naked Pairs and Triples in Sudoku: How Reserved Candidates Work
Use naked pairs and naked triples to remove candidates cleanly without guessing.
Consecutive Sudoku / 13 min read
Consecutive Sudoku Rules and Strategy: Read the Neighbor Clues
Learn how consecutive-cell clues change candidate ranges and make adjacent numbers easier to prove.
Difficulty / 14 min read
Sudoku Difficulty Levels Explained: Easy, Medium, Hard, Expert, Master
Understand what makes Sudoku puzzles harder and how to choose the right difficulty for improvement.
Samurai Sudoku / 15 min read
Samurai Sudoku Strategy: Solving Overlapping Grids Without Getting Lost
Learn a calm approach to Samurai Sudoku, overlapping grids, and multi-grid scanning.
Intermediate strategy / 15 min read
Locked Candidates in Sudoku: Pointing and Claiming Made Clear
Learn locked candidates, pointing pairs, claiming candidates, and how box-line interactions remove options.
Modes / 16 min read
ZUDOKU Modes Compared: Which Sudoku Variant Should You Play Next?
Compare Standard, Killer, Thermo, Samurai, Sudoku X, Jigsaw, Hyper, and Consecutive Sudoku in ZUDOKU.
Training plan / 16 min read
30-Day Sudoku Training Plan: Build a Better Solving Routine
Follow a 30-day Sudoku plan that rotates scanning, notes, variants, speed, accuracy, and Daily Dojo.
Hints / 13 min read
How to Use Sudoku Hints Wisely: Learn More From Every Hint
Use Sudoku hints as feedback, not shortcuts, and build a path toward cleaner hintless solves.
PvP / 14 min read
Ranked PvP Sudoku Guide: How to Stay Fast Without Guessing
Learn how to approach ZUDOKU ranked PvP with clean scanning, pressure control, and smarter decision-making.
Mode practice