The ultimate 1v1 Arena for Codeforces warriors
Discover how Blitz1v1 empowers the competitive programming community with state-of-the-art tools and real-time interaction.
Our newest and most dynamic feature. Post a public challenge, interact with interested players, and negotiate the perfect match configuration before starting the battle.
The core dueling experience. Create a room, invite an opponent, or find a random challenger. Features Live Pairing and Random Opponent matchmaking to get you into a match instantly.
Track your progress against the entire community. Our leaderboard ranks players based on their blitz performance, wins, and consistency, giving you a clear path to the top.
Go beyond simple scores. Our Head-to-Head tool lets you compare historical performance between any two handles, while the Results Archive provides a deep breakdown of past matches.
Your coding identity, evolved. Profiles feature real-time presence indicators, CF rank badges, success streaks, and deep-dive statistics into your solve patterns.
Scale the competition with automated bracket generation. Perfect for organizing multi-round tournaments where winners progress through the ranks until a champion emerges.
Blitz1v1 eliminates the overhead of manual synchronization. Everything is automated, ensuring a focus on what matters most: the code.
Two players enter a room. Once both are ready, the match locks. A shared problem is instantly fetched from Codeforces based on the room's rating configuration.
Both players solve the problem on Codeforces. Our engine polls the API in real-time. The first player to get an "Accepted" verdict wins the points.
After a solve, the problem is locked. A 1-minute break begins, allowing players to breathe and analyze before the next problem is automatically fetched.
After all problems in the set are attempted, the final score is calculated. Results are archived immediately for the world to see on the public Results page.