Number challenges statistics
Your rounds, saved in this browser.
Your rounds, saved on this device and with your account.
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Your levels
Play a round to start your log.
A level is cleared after two rounds in a row with at least 5 of 6 right, or the same share of a longer round, and no hint or shown answer. Tempo is the seconds per answer, and the best tempo counts only those rounds.
No rounds here yet
Finish a round to see your accuracy and time.
Start a roundYour accuracy
- Completed rounds
- Average accuracy
- Best accuracy
- Total solving time
Recent rounds
| Date | Accuracy | Solving time | Saved result |
|---|
Rounds at these settings
- Median score
- Median time
Every finished round is counted anonymously at its settings, with nothing that identifies who played it. Rounds with a hint or a shown answer are counted but left out here. The spread and the medians appear once there are 30 rounds, and where your latest round falls once there are 100.
Community comparisons appear once enough matching results are collected.
Only completed four-question rounds are included. Shown answers count as incorrect. Solving time includes foreground work on questions, excluding worked-solution reading and background tabs. These are your personal results. Shared results are not collected for this practice, so there is no community comparison.
Statistics use the latest 100 saved activities. Earlier rotation-only history remains stored separately. View all activity
Your guest profileNickname and sharing
Guest
No signup. Your name and personal history stay in this browser. A guest ID is created only when you save a nickname or share a future result.
Your history is kept with your account and syncs to every device you sign in on. The guest settings below, a nickname and result sharing, stay in this browser.
Guest settings
Off until you choose. When enabled, future rounds send scores, settings, active time and task counts to Studio AM with a random guest ID for community comparisons. No individual answers, drawings or names. Earlier results stay local. This does not enable usage logging or advertising.
How practice data is usedOptional and off by default. Share starts, completions, replays and error categories. For visits from ChatGPT, starts and completions can also include the first QuickenBrain page and broad country. No answers, drawings or names.
How this data is used