FAQ index
Resolve where to click first, then drill a module. This atlas indexes sites; it does not host engines.
Updated 2026-09-22
How can I quickly find a puzzle type I have never played?
Where to play → All-in-one portals (19 sites). Sample many genres under one roof before a specialist list.
Where can I find paper-and-pencil grids?
Where to play → Printable & PDF, or the print topic guide. Krazydad ships PDF booklets with answers.
What is the difference between Sudoku and Sudoku variants?
Classic Sudoku is 1–9 per row, column and box. Variants add a second constraint layer — see the Sudoku topic guide.
Can a tool show the next move without spoiling the grid?
Where to play → Solvers & tools. Ask why the next step holds. Vocabulary for those tools sits in the CSP / solvers module.
Where should an English speaker start with Japanese pencil puzzles?
Read the Nikoli module or a type page, then open Japanese pencil puzzles (Kwon-Tom Loop, puzz.link, and similar sites).
Topic guide map
Atlas ethos & freemium; Sudoku technique; advanced chains/wings; Nikoli; arithmetic & Nonogram; CSP / graph solvers; WPF & community; print; word & visual — all in the Guides list.
About this page
- Last updated 2026-09-22
- Source Editorial guide compiled by TappyPotato from public puzzle resources and site listings
- Audience Players following a topic guide before opening type or site pages
- Covers Guide sections on this page and links to related atlas pages
- Does not cover Hosted puzzles, worked solutions, official contest rankings, third-party uptime guarantees
- Not advice This page is puzzle reference content only. It does not constitute financial, legal, medical or other professional advice.
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