The option Wipe can be used to deal with most intractable repetition at the moment of a large number of outstanding items in the learning process. Elimination of intractable items in a given session may proceed in two ways:

* postponing repetitions of items with the shortest intervals

* removing items with the shortest intervals from the learning process and adding them to the intact queue, i.e. to the queue of intact items waiting for memorization

In order to postpone least important repetitions, choose the maximum inter-repetition interval used by items that can be postponed, and optionally, define the interval increase factor.

The interval increase factor tells how many times the intervals of the postponed repetitions will increase. If the interval increase factor equals 1, all the postponed items will be moved to the next day.

Finally, choose the Wipe command button to remove the to-be-postponed items from the outstanding queue.

(2) In order to remove short-interval items from the learning process,

choose the maximum inter-repetition interval used by items that can be reset (i.e. made intact), and choose the Reset-Wipe command button to remove the to-be-reset items from the outstanding queue.