Daily Challenge

Every day brings a new set of 5 multiple-choice questions. Everyone on a track gets the same set, in the same order, so scores can be compared fairly. After each answer you see the correct choice and an explanation. You get one go per track each day, and the next set unlocks at midnight, your local time.

The ABO Basicchallenge is free for everyone, and you don’t need an account to play it. Sign in and your score goes on the day’s leaderboard, which lists the top ten by first name and last initial and shows you your rank and the share of players you beat.

Finish on back-to-back days to build a streak. Finishing the day after your last challenge adds one; after a missed day it starts again at one. Your current and longest streaks are saved in this browser for each track.