Observed arrival · 2026-11-06
Box Brain Sudoku: twelve variants, hints that teach
A playable sudoku site and iOS app with twelve puzzle modes, technique-based hints, daily challenges, and printable materials.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Sudoku players seeking guided variants and accessible print
- Worth noticing
- Printable sheets cover all 12 modes, with braille files for embossers and swell paper.
Field notes
The browser board lets visitors choose a cell and digit, request a hint, and try a daily puzzle without an account. The site describes difficulty by required solving techniques and lists lessons for 18 techniques, including X-Wing and Swordfish. Printable sheets are offered across all 12 modes, alongside braille downloads for embossers and swell paper; the app feature section also describes streak tracking and detailed game analysis.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue