Introducing CF Catalyst

Note: This extension does not require any API setup or generation, no configuration steps to follow, no rate limits to worry about, and no availability issues to deal with.

Link : https://chromewebstore.google.com/detail/cf-catalyst/oihpbapkcfcnjocjdpfpbobidaeoblha

(Started working on this during August last year but had to put it on a very long hold due to other commitments. However!)

This is a blog I’m writing to introduce you to yet another Chrome extension: CF Catalyst. But before that, let me ask you something. - Have you ever opened a Codeforces problem, felt confident after reading it, and then… just couldn’t move forward? - Do you feel stuck when you move to more difficult problems, even though it feels like you’re very close to the solution? - Do you open the editorial and risk spoiling the entire problem for myself to solve? - I have faced these things and this is why CF Catalyst exists.

The Gap Between Easy and Hard Problems

• Easy problems feel straightforward. You read them, spot the idea, implement it, and move on.
• But as soon as you step into more difficult problems, something changes. You’re not lost — you’re just one idea away. In those moments, you don’t need the full solution. You need a small nudge, a hint that pushes your thinking in the right direction.
• That’s exactly what CF Catalyst helps with.

What CF Catalyst Does

• CF Catalyst helps you solve problems without taking the solution away from you.
• It provides progressive, step-by-step hints that guide you toward the idea of a problem while keeping you solve problems that are strictly aligned with Codeforces editorials.

Each hint:

• Preserves the original mathematical notation and variables
• Follows editorial-style reasoning
• Reveals only the minimum insight needed at that step
• You stay in control. You decide how many hints to reveal or when to stop and solve it yourself.

There are a few important design choices here:

• Hints are generated only from official editorials (that's why some problems among the whole problem set have no hints generated for them).
• No new logic, no altered variables.
• Editorials are compressed into progressive hints, not rewritten as solutions
• The entire pipeline is fully automated.
• Whenever a new contest editorial is released, hints for those problems are generated within a few hours, without any manual intervention.

• This means:

• New contests are supported automatically,
• Older problems remain consistent
• The hint quality stays editorial-faithful

Why This Is Not Cheating

• This is an important question, and it deserves a clear answer.
• CF Catalyst does not generate hints during contests.
• Hints are available only after the official editorials are released and there is absolutely no way you can generate hints from this extension without having editorial for it.
• This makes CF Catalyst a learning tool, not a shortcut.

How CF Catalyst Is Different From Others

• There are plenty of tools that promise “AI help,” but CF Catalyst is intentionally different.
• No API keys required
• No setup, no configuration, no accounts, it just works.
• No rate limits, no availability issues
• Hints load instantly, every time.
• Fully autonomous for new contests
• As soon as editorials are released, hints follow automatically.
• Editorial-specific hints only
• If a problem doesn’t have an editorial, CF Catalyst won’t fabricate hints for it.
• Seamless Codeforces integration
• Clean, non-intrusive UI that fits naturally into the problem page.

 Sometimes, all you need isn’t the solution — just the right catalyst.