YALEXSOLVE.PROVE.EXCEL.
Yalex finds where your understanding breaks in real time and rebuilds it, from Pascal to Euclid and the COMC.
Q3 · sequences — correct · difficulty up
Q4 · mod arithmetic — missed · retarget number theory
Q5 · serving at your edge — 301 · Lifting
Placement stops at your edge — not at a grade.
Your turn
Try one. Right now.
A real problem from the Yalex bank, rotated every hour. No account, no setup, just you and the math.
Studying hard doesn't mean you're studying where it counts.
You've pulled the all-nighters, watched the videos, but yet the first hard question on the contest still stumps you. Why?
Past papers on repeat: Just doing isn't learning, you have to review where you made mistakes and where your time was lost.
Concepts killed by twists: Contest problems are not straightforward; you have to learn to think creatively.
Untimed hero, timed zero: The clock doesn't wait when you're stressed in a contest.
The fix
Work at your edge. Never below. Not above.
Adaptive placement pins your level in five questions. Every problem after that lands where growth actually happens.
Find your level
Five questions pin an honest starting point. No need to prepare, it's not a test.
Practice your edge
Problems adapt the more you practice, we'll keep pushing as long as you put in the work.
Prove it
Finish a module and pass its CAT test. Pass it, and the next level is earned; bomb it, well... Remedial work there is to do.
No essay-reading. No fluff. The shortest path to your next level and proof when you arrive.
Your centralized dashboard
Four systems. One goal.
They only do math. That's the point.
Mastery map
Weak spots get flagged before the contest finds them.
Adaptive placement
Five questions, 20 minutes, one honest starting point.
The engine
20 foundational and 30 advanced problems per module. Difficulty adjusts after every answer.
Prove it
Finish a module, sit the CAT test. Pass it, and the module is banked.
Your dashboard
Scores, mastery maps, your every weak spot. Take charge in command.
Frequently asked questions
Q1Is Yalex free?
Yes, 100% free in beta; no card, just math.
Q2How is this different from Khan Academy or YouTube?
Those are content libraries for school preparation. We're here to drill you so you excel beyond that: in contests.
Q3What do levels 101–600 mean?
Our ladder to show your improvement. From 101, 201, and 301 to 401, 501, and 600, Yalex guides you to your peak.
Q4What's a CAT test?
A short assessment covering that module's category. Pass it and the next module is unlocked.
Q5Do I need an account to try it?
No! The placement and warm-up are all anonymous. Try our engine and sign up to save your progress.
Q6I'm preparing for school, is Yalex good?
Sure, but be prepared to struggle. We're here to help you reach your potential in hard, multi-step contest problems. For school, much of what we teach is unnecessary. We help you excel, not build mediocrity.
Q7Which contests does Yalex cover?
Pascal, Cayley, Fermat, and Euclid along with the COMC: the only way to qualify for the Canadian Mathematical Olympiad.
That's it
Stop studying blind.
Run the free placement. Twenty minutes later you'll know exactly what to fix.
Free in beta