Recommended
Practice 練習
No timer. Try again after a miss, reveal when stuck, then move on when ready.
01 / Recall
Practice is untimed and waits while you read each answer. Its privacy-minimised results can optionally be saved in this browser. Timed challenges stay temporary. There is no account, cloud sync, mastery score, or spaced-repetition schedule.
Saved Practice history can provide optional deck-specific choices in Device progress.
Checking this browser for a starting choice.
Your starting point
Looking for optional saved Practice facts before showing a starting choice.
More choices
Recommended
No timer. Try again after a miss, reveal when stuck, then move on when ready.
Countdown mode
Race the answer window, reach the point goal, and avoid five consecutive misses.
Start here · 入門
Everything else · 全デッキ