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Mulling over upgrades to the SRS29 July 2015
I started coding again, and am currently brainstorming the implementation of the "demote flashcard" feature I described earlier. Essentially the ability to reduce the review interval of a card, when you forget it, instead of sending it straight to the restudy pile. With this change I will also add the option in the flashcard dropdown, to force a card to be sent to the restudy pile, so in the end you have a more fine grained way of managing the restudy pile.

While mulling over this I realized that this isn't as straightforward as I thought with the Leitner system. So I am considering converting the Leitner SRS to something closer to that of SuperMemo, Anki, etc. Instead of storing the "box" each card resides in, it will store the review interval of that card. Along with that a "mutliplier" setting, which can be added to the user's preferences, is used to calculate the increased intervals. So for example with a multiplier of 2, the intervals would be 3 days, 6 days, 12, 24, 48, etc. Once the SRS is updated that way, the "No" answer can be configured to reduce the review interval instead of sending the card straight to the restudy pile.

So the way the "No" answer would work is to first reschedule a failed card within 1-3 days (probably a user setting), and at the same time recalculate its interval as a fraction of what it was before. So if the last interval was 30 days, and the card was forgotten, it could be 10 days. Now after 1-3 days the user reviews this card. If the review is then successful, the card will be scheduled again as usual, but its interval has been reduced. So this would be roughly similar to a card moving down several boxes, however the way the Leitner data is currently stored doesn't work which is why I am mulling over this change to the SRS.

ps: another thing that came to mind is that I could potentially add a new "Relearn" answer, so the answers would be "Relearn", "No", "Yes", "Easy". So if you don't like the restudy cycle, you can just answer "No" to demote the cards and keep on reviewing (keeping in mind Koohii SRS lets you view and edit the story while reviewing). If you answer "Relearn" then the cards will be separated into the red pile which can be worked on in the Study section.
What's up in Koohii town?18 July 2015
I'm sorry for the lack of updates recently. I am recovering from rhinoseptoplasty, a surgery which will hopefully allow me to breathe comfortably with my nose and improve my quality of sleep. It's been really hot as well as many of you are experiencing in Europe.

I am looking forward to resume work on the site in September, maybe sooner depending how I feel. update: I have recovered already. I spent a week breathing through the mouth, which was the most uncomfortable part. My cast was removed friday! My nose is still a bit swollen, and will take some time to heal fully and clear up so I am not yet breathing as comfortably as I wish but I have to admit it's already better than it was so I can't complain. I am told it can take anywhere from 3 weeks to a couple months to fully experience the benefits. And then it can take a year or more to fully heal up. As far as aesthetics are concerned I can't complain either since they removed the little hump that often goes with a deviated septum so my nose looks a bit nicer :)

All in all I'd say go for it if you need surgery for a deviated septum or even for a significant aesthetic correction. It's a bit unpleasant to go through but as long as you can take a week off it's not that bad. The surgery itself was done in the morning and I was allowed to go home in the afternoon. I didn't have much pain, mostly swelling around the eyes, and a feeling of pressure on the face, so you still want pain medication to relieve the sensations but it's really not that bad.

By the way, Kanji Koohii will be ten years old this august!

New : Keyboard shortcut for "Skip flashcard".2 June 2015
UPDATE Bugfix! The shortcut was only working after flipping the card. It now works before you flip the card, which makes a lot more sense :) (so eg, if you draw a blank on a keyword, you can skip the card without seeing the kanji, to work on it later).

There is a now a keyboard shortcut for the "Skip flashcard" feature previously available in the flashcard menu (the drop down that is available by clicking in the top right of the flashcard). The shortcuts are K and , (decimal point on the numeric keypad), also documented in the Help window.

The "Skip flashcard" shortcut can be handy if you like to whittle down the due cards by going through all the easy answers first, and then working on the difficult characters in a second pass. Thanks to Joe for the suggestion!
New : On / Kun example words on SRS flashcards.27 May 2015
The Spaced Repetition flashcards can now display an example On and Kun readings. The readings are shown as part of an existing word, rather than isolated. On readings are written in katakana, and Kun readings in hiragana. The reading for the kanji is highlighted in red in the full word pronunciation.

This feature was previously found in the "Custom Review" option but is now available as an option in the Flashcard Settings page. You may want to enable it once you have completed RTK, so you can get more out of the SRS reviews, and leave it out when you just started the RTK method so you can focus better on the kanji writing. In the latter case keep in mind you can always do some (non SRS) review sessions with vocabulary in the Custom Review page.

For upcoming updates, I am considering a significant change to the SRS that could streamline reviews and reduce the amount of due cards. The idea is pretty simple: instead of sending failed reviews back to the red pile, there would be the option to "demote" a card to a lower box, and also set its next review interval to a small amount, eg. ~ 3 days.

If the next review fails, the card would eventually fall back to the red pile. A card in box 1 or 2 would likely fall back to the red pile, but a card that already has 4+ successful reviews would not return to the "failed" pile straightaway. Instead it would come back for review within a few days. Upon succesful review it would be rescheduled based on the lower box it was moved to, so for example instead of 6 months it might come back in a month. Still this would save several reviews trying to move up the card again.

Any input would be appreciated. Let me know what you think!
Soon: On / Kun examples words in SRS flashcards18 May 2015
I am working on adding the On / Kun example words that are currently available in Custom Review, to the Spaced Repetition flashcards.

Thus when you have completed RTK you may want to enable this option so you can start associating characters to their readings,, and potentially note down some vocabulary as well.
...more in the news archive.