Privacy & terms

Cards and scores are processed on your device. This version sends no analytics, ads or progress to a server. Stats, up to 20 missed hands and up to 30 daily records stay in local browser storage. Use Clear progress or browser settings to delete them. Make 21 also saves the latest 30 daily puzzle records (found trios, hints and misses) locally; its Clear puzzle history button deletes only those puzzle records. Download progress creates a JSON copy; this version does not import or synchronize it.

If publicly hosted, the hosting provider may handle ordinary request logs. This is free practice software without an account, wagering or prizes. Use it for learning; do not use outside assistance during a tournament. The implementation is checked, but is not ACC affiliated or certified.

Updated October 7, 2026. Contact the operator.