Mistake NotebookEvery question you missed
Questions you miss anywhere in practice (chapter sets, topic sets, difficulty levels, the drill area) are saved here automatically. Answer a question correctly twice in a row in “Redo mistakes” and it leaves the notebook.
The notebook is stored only in this browser on this device. It won’t follow you to another device or browser, and clearing your browser data erases it.
This browser can’t save data right now (private browsing, or site storage is turned off), so the notebook is unavailable. Practice still works as usual.
Your notebook is empty. Questions you miss in practice will show up here automatically.
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Redo mistakes