Update: 4000 of our most popular problems can now be accessed through the various wiki pages!
I would like to highlight the ability to view problems written up by others on a given wiki page. These problems are displayed on a wiki page under Community Posts. Currently, over 2000 of our most popular problems can be accessed on the wiki page, which offers you an easy way to grill yourself in applying the skill. Many thanks to the prolific problem writers who have taken their time to place their problem in the correct skill.
Examples of wiki pages with excellent writeups and a lot of problems are:
Applying the Arithmetic Mean - Geometric Mean Inequality
We are still in the midst of improving this feature. Many people have recently discovered this feature and really love it, which is why I am calling your attention to it before it is fully formed. Over time, more of the popular problems will be added to this list, especially with the help of problem creators (see below). Also, we will provide filtering options to allow you to hone in on the relevant problems.
Note: If you spot a problem that is in the wrong wiki (esp if none of the solutions use the skill), please let me know and I can fix it.
For those who are eager to contribute to the Wiki, the following pages have a lot of interesting problems attached, but are lacking explanations to learn from. I would appreciate if everyone can add an example here and an example there :)
Probability - By Outcomes
Quadratic Diophantine Equations - Solve by Factoring
Area between Curve and x-axis
Combinations - With Restriction
For problem creators, it would be greatly appreciated if you start adding skills to your problems and notes.
When first creating a problem, select the relevant topic/subtopic/chapter/skill from the dropdown menu.
For old problems, simply select "edit problems" from the “dot dot dot menu”.