I used two methods: verbalization by narratives and mentalization by diagrams. With verbalization I recalled 24% of the solutions while with using diagrams I recalled 91% when using short intervals (1-3 days). With long intervals (>10 days) these figures became 8% vs. 68% respectively.
In the end I made use of SRS which works well.
The problemset comprises almost every important trick under the sun. What I want to do now is to work on the transfer of these combinations to the game.
There are categories in memory like (hattip mr. Z.):
- Retrieval (cues)
- Organization and connection
I only just started with this, but already I identified the following categories:
- Endgame with mutual promotion.
- Battery with queen and knight against unprotected queen.
- King flight to an incomprehensible square.
- Mating attack threat on one wing while gaining wood at the other wing. Often an (unprotected) rook.
- Incomprehensible solutions. There are quite a few problems where I don't know what I'm doing. Despite the fact that I can verbalize it, some mental short-circuiting takes place so I'm not able to appreciate the win. In the sense of an emotional indifference. There is no way I'm going to find these moves in a game.
- Crowded pieces.
- Place target on a square for a knightfork.
- Beancount problems. Problems that I have difficulty with to know how much each side gains from a combination/counterattack.
- Underestimated kingposition invasion. I continuously have difficulty to see the power of invasion.
- Setting up a battery.
- Fencing off hostile pieces from your promotion square.
- Increasing threat in stead of cashing in.
I intend to milk out these 178 problems as much as possible by processing them from different angles of attack.