Ponderanda · Day 3
Day 3 was set on 19 August 2026. Five arithmetic problems, the same five for everyone on the planet, and one attempt each.
A wrong answer ends the day, and that is fine. The thing being recorded is that you turned up, not that you were perfect. There is no timer on the screen, missing a day costs nothing, and every past day stays playable for free.
Play it here, free. No account, nothing to install, and no ads at all while you are solving, and that part is permanent.
Prefer it on your phone, where a daily reminder can find you? Get it on Google Play.
It will not make you smarter, and does not pretend to. It will make you faster at arithmetic. Read the rest.