Identify the version
Rule articles distinguish Pagat’s base description from a publisher’s tutorial or a house variation. We do not silently combine rules from different versions. Original learning exercises are labelled as suggestions.
Distinguish research from testing
A source-based app introduction means we checked public information. It does not mean we installed the app, verified multiplayer quality or confirmed availability for every reader. Tested claims require a recorded device, version, date and observations.
Corrections
Use the contact page to send the relevant URL, wording and a source. References in the initial release were checked on 20 October 2026.