LineboundIntegral arena

Direct access

Play a ranked duel now.

Queue instantly, get matched by ELO, and answer definite integrals with exact values. Compete in best-of-three series, climb the seasonal ladder, and track your progress.

Direct access

Play instantly

Start as a guest. Log in with Google or email to save your progress.

Ranked duels

ELO-rated integral challenges

Face opponents matched to your skill level. Solve definite integrals with exact values under time pressure.

Private rooms

Challenge friends directly

Create a private room, share the code, and play custom series with adjustable difficulty and best-of settings.

Daily practice

One challenge every day

Keep your skills sharp with the daily integral challenge. Build a streak and stay engaged between ranked series.