# Finding a problem > The filters on the problem list, what the acceptance rate means, why a topic page is worth browsing, and how to get an unsolved one at random. Source: https://www.revquix.com/docs/practice/finding-a-problem Last verified: 2026-09-04 --- [/problems](https://www.revquix.com/problems) is the whole catalogue. It is a public page - you can read and filter it signed out, though two of the filters only mean something once we know who you are. ## Reading a row Each row carries five things, in this order: **your status**, the **number and title**, its **topics**, its **acceptance rate**, and its **difficulty**. On a narrow screen topics and acceptance drop away; status, title and difficulty always stay, because difficulty is the column the list is actually read down. The status column is a tick for solved and a dot for attempted-but-not-solved. Signed out it is blank - that is "we do not know", not "you have not solved it". ### The acceptance rate The share of submissions on that problem that were accepted. It sits next to the difficulty label on purpose: a problem marked Hard that most people solve first try is a label worth doubting, and showing both lets you doubt it. > **Note** - A blank acceptance rate is not zero > > Below a floor of submissions we show nothing rather than a number computed from three attempts. A > new problem has no rate, and that is the honest state. ## The filters 1. **Search** matches the title. It filters what is on screen rather than asking the server again. 2. **Difficulty** - Any, Easy, Medium or Hard. 3. **Progress** - All problems, Not solved, Solved, or Attempted. This one only appears when you are signed in, because none of those questions has an answer otherwise. 4. **Random** opens a random problem _from the list you are currently looking at_. Filter to unsolved mediums first and you get a random unsolved medium, which is almost always what people mean. Changing any filter takes you back to the first page. Without that, filtering to Hard from page 4 of Medium lands you on an empty page 4 and reads as "no problems match" for a filter that matches plenty. > **Note** - There is no sort control > > The list is ordered by problem number and cannot be re-ordered. Sorting by acceptance or difficulty > is a filter away in most cases. ## Paging The count above the list reads **Showing 10 of 137** - the second number is the whole filtered result, not the page. Your own account-wide solved count lives in the sidebar card instead, where it always describes the entire catalogue rather than whatever is on screen. ## Browsing by topic Every problem carries one to five topics, the first being its primary one. The full taxonomy sits at the foot of the list, grouped into four families - Data Structures, Algorithms, Techniques and Maths - and each is a real page at `/problems/topic/`. Topic pages are worth using rather than being a filter in disguise: they are server-rendered, they link to each other, and they are the pages that turn up in a search engine. If you want to drill one idea - every sliding-window problem, in order - that is the page to bookmark. ## The sidebar To the right of the list (below it on a phone) sit three cards: - **Your practice** - solved counts by difficulty, your streak, and a twelve-week activity strip. It is an invitation to sign in when you are not. - **Browse by topic** - the ten largest topics. - **Not sure where to start?** - a link to [tracks](https://www.revquix.com/tracks), which is the honest answer to a long list of problems and no opinion about which to do next. The full version of that first card, including every submission you have made, is [your practice dashboard](https://www.revquix.com/dashboard/practice). ## Related - [The solver](https://www.revquix.com/docs/practice/the-solver) - What happens when you open one. - [Tracks](https://www.revquix.com/docs/practice/tracks) - An ordered path instead of a filter.