When you mark a kanji as known, it will be removed from future puzzle drills. As you master a set, the number of questions will dwindle.
Start with 60 kanji and repeat the drill until there are no more cards.
2) by adding
You can add kanji you want to concentrate on to the Repeat Puzzle stack. This stack will grow as big as you wish.
About the score and progress
If you leave Asahi Kanji in the middle of a Puzzle drill during which you have not marked any card as "known",
you will be able to resume it anytime later where you have left it
(same progress, same score),
even in the case the app has been killed by the system.
If you have marked cards as "known" during a drill and the app is put to sleep (so that you can answer a phone call or use another app)
or if the app is killed by the system when it is in the background (too many apps are opened in the background, low memory, low battery etc.)
it will be have to be restarted because of the modified number of kanji to test. Your score and progress will be reset to 0 and the number of cards to test will be modified.
About the stroke order
According to the Wikipedia page on stroke order
the Japanese Ministry of Education, Culture, Sports, Science and Technology lets editors freely prescribe a character's stroke order,
which all should "follow commonsensical orders which are widely accepted in the society".
Please read the general guidelines on the Wikipedia page and notice the repeated use of the phrase "usually written".
Some Japanese people have forgotten what they have been taught at school in their youth and are not so sure about the "correct" order, so do not
overemphasize this order.
Handwriting recognition software generally relies on stroke order and must allow some variants.
Please also note that there are different rules and standards concerning stroke order in different countries.
(image source: Wikipedia)
ROC is the Republic of China i.e. Taiwan.
PRC is the People republic of China i.e. mainland China.
This activity uses the Scalable Vector Graphics (SVG) data from