Math Gym

Explore thousands of curated problems from major contests and filter by your favourite difficulty or category.

Build momentum with daily challenges, keep your streak alive, and compare your progress with friends.

POTDs were split into normal and challenge modes after POTD #21. Early access is available in our Discord community.

There are currently 685 POTDs on TopsOJ.

Level up your instincts with interactive games focused on speed, precision, and mental agility.

• Mental Math Train your brain with custom drills.
• Triangulate Race to locate triangle centers.
• Be Perfect Master perfect squares lightning fast.

Dive into curated notes, walkthroughs, and strategies for every major contest topic.

Create a timed, unique mock contest in just a few clicks and simulate a real competition experience.

Supported mock contests:

A calming practice experience is on the horizon. Stay tuned for mindful problem solving sessions.