Battle Arena
Challenge opponents in 1v1 battles or practice solo. The fastest to solve the random Codeforces problem takes the win.
How It Works
1v1 Online Battle
Get matched with a random opponent online. Both of you are given the exact same Codeforces problem. The fastest to submit an Accepted solution takes the win and climbs the ranks.
Private 1v1 Room
Challenge a friend to a private duel. Create a custom room and share the 6-digit code, or join an existing one to settle the debate on who's the better coder.
Random CF Problem
Want to practice solo? Select your preferred topics and rating range to fetch a fresh Codeforces problem instantly. Hone your skills without the pressure of a timer.