Rules and versions
Our initial visual examples and compact scoring aid use Bicycle’s classic account. Pagat provides additional version orientation. Follow the named full source for details; do not combine classic and modern rules without an explicit agreement.
Original learning material
Practice routines and checklists are teaching suggestions written for this website. They do not claim to be official rules. App profiles identify provider sources, while real testing requires a dated record with device, version or mode, and concrete observations.
Corrections and maintenance
Source checks were made on 20 October 2026. Send the page URL, the relevant wording and a complete reference when reporting an error. The operator should review sources after any substantive change and update the check date only after actually checking them.