The NetSudoku Blog
Insights, platform rankings, technique guides, and gameplay updates from the team building the web's premium, logic-first Sudoku app.
How to Solve Sudoku on Paper with a Pen: 16 Variant Guides
No undo button, no auto-notes, no error indicators โ just you, a grid, and two pens. This 16-part series teaches the universal three-pass method, then adapts it to every major Sudoku variant, from a 4x4 Mini to a 369-cell Samurai.
Pen & Paper Series โ Every Variant on Its Own Page
Technique Guides & Solving Tutorials
How to Solve Hard Sudoku Without Guessing: 5-Tier Logic Blueprint
Hit a wall at 60% completion? Master the deterministic 5-tier triage protocol, Snyder notation transitions, locked candidates, and fish patterns with zero trial-and-error.
How to Play Sudoku: The Complete Step-by-Step Beginner Guide
Master the 9ร9 grid, core non-negotiable rules, crosshatching scanning techniques, and candidate notes with zero math required.
The Best Browser Platform for Wing Techniques
Master advanced candidate reduction patterns including X-Wing, XY-Wing, and Swordfish with interactive pedagogical visualizers and zero ad interference.
New York Times Sudoku: Daily Reset Times & Hard Guide
Master the daily Easy, Medium, and Hard tiers: exact reset schedules, finding today's answers and hints without cheating, and conquering the Hard board with advanced logic.
How to Solve NYT Sudoku Hard: Step-by-Step Guide (Without Guessing)
Tackle the demanding 22-clue daily challenge: target solve times, Snyder notation playbook, locked candidates, X-Wings, and demystifying the yellow hint cell.
LA Times Sudoku: Daily Tiers, Difficulties & Solving Strategies
Everything you need to master the daily syndicated puzzles: tier structures from Mini to Impossible, daily schedules, candidate tools, and expert deduction patterns.
How to Master the X-Wing Technique in Sudoku
A complete visual guide to spotting and applying X-Wing candidate elimination. Learn when and why this advanced technique works, with step-by-step board examples you can practice interactively on NetSudoku.
NetSudoku Editorial Team
Our team is made up of full-stack web engineers and competitive puzzle enthusiasts with 15+ years of combined experience in web performance, JavaScript architecture, and UX design. Every article, benchmark, and comparison on this blog is written and tested by people who actually solve Sudoku daily.