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Select ALL that apply, then press Submit.
Click options in the correct order.
Read the question, then select an answer by clicking/tapping one of the four numbered options.
On keyboard: press 1 2 3 4 to pick instantly, or use ↑ ↓ to move the highlight and Enter to confirm.
If you want to see the answer without guessing, press Reveal Answer (or Enter / Space when no option is highlighted).
After an answer is shown, rate how well you knew it. This controls when the card next appears:
Keyboard: 1=Again 2=Hard 3=Good 4=Easy
Right hand: J=Again K=Hard L=Good ;=Easy
After an answer is revealed, swipe the card to rate:
Answer 3 correct in a row → the amber bar on the right fills up.
Bar full → a sapling takes root in your grove (watch it grow!) and the arboretum in the top bar gains new life.
A wrong answer resets your streak, but never your overall progress or SR schedule.
Tap the ☆ star in the top-right corner of any card to bookmark it (it turns ★ gold).
In Settings, enable Show Bookmarked Only to navigate exclusively through your bookmarked cards — useful for targeted review before an exam.
Use ← Prev and Next → in the footer to move freely through the deck at any time. This does not affect your spaced-repetition schedule.
The counter at the top (e.g. 1 / 40) shows your current position in the deck.