01
Take a seat
Username and password. You start at 1000 Elo — pole is earned, not given.
Mental math · 60-second sprint
Sixty seconds.
Same problems.
First across the line.
A 1v1 mental math race. You and a friend get the same problems — most correct wins. Elo, K=32.
60s
The race
1v1
Same problems
K32
Elo, ranked
+−×÷
Classic mental math
How a lap works
Sign up. Friend someone. Put them on the grid.
02
Build a stable
Search a username, send a request, accept. Online friends show a live mark.
03
Race
60 seconds. Same prompts. Type the answer — it advances when you’re right. Most correct wins.