Fill it to the brim. Don’t spill.

What is Brimbob?

Brimbob is a free daily estimation game. Every day brings three glasses, each with six cards that hide real-world numbers from public datasets. Pour the cards you think will fit and get as close to the brim as you dare – one card too many and the glass spills. No account needed: your progress stays in your browser.

1. ?

   Tap a card to pour

   Each card hides a real number. Tap it and that number pours into the glass. You get 45 seconds per glass, or no timer at all in relaxed mode.

2. Stop before it spills

   Bank your points whenever you like. Just over the brim? Surface tension holds up to 3% extra. Any more and the glass spills.

3. Fill it to score

   99% to 103% full scores 100 points, a spill scores 0, and three glasses make a day out of 300. Then see how Pourbot, a bot with a public rule, poured the same glasses.