In Guess Who, the maths isn't a gate you have to get through — it IS the game. Every question your child asks is a maths question: "Is your number divisible by 3?" "Is it a multiple of 4?" They're thinking about multiplication, divisibility and number properties with every single turn.
Pick a question for Champion
Your child secretly picks a number from the board — this is the number their opponent has to guess.
"Is your number divisible by 3?" "Is it greater than 15?" Champion answers yes or no — honestly.
Based on the answer, your child taps to flip down the numbers that can't be correct. The board shrinks with every question until they can guess.
3 coins per question asked, 15 coins per win. Coins are spent in the reward shop on avatars, themes and accessories — or redeemed for real-world rewards you set up as a parent.
When your child isn't sure how to answer a question, they tap "Not sure? I can help" and Champion walks them through it step by step — explaining the maths trick (like the 3× table digit trick), checking it against their secret number, and helping them say YES or NO with confidence. Try it yourself below.
Your child can play against Champion any time, or challenge a friend or sibling. Both are always available.
Every game is logged. We track which questions your child asked, how many turns it took to find the answer, and which number properties — divisibility, multiples, odd/even — they're getting confident with.
Each session logs questions asked, turns taken, time spent, and which difficulty level was used.
We track which number properties — divisibility, multiples, odd/even — your child is confident with and which need more work.
3 coins per question asked, 15 per win — spent in the reward shop or redeemed for real-world rewards.
The engine does not sit behind a separate dashboard. It runs inside Guess Who, shaping what happens next based on what your child needs.
The questions children answer to narrow down their opponent are drawn from the facts the engine knows they need to practise. Playing a game is also doing targeted revision, without it feeling like it.
Guess Who works particularly well for children with these learning needs.
Articles we think you'll find helpful, hand-picked for Guess Who.
Why knowing 3×5 doesn't always mean a child can answer '3 times what equals 15' — and how Guess Who builds that reverse understanding.
Read moreEvidence-based maths intervention that builds flexible, relational understanding — exactly what Guess Who rewards.
Read moreThe hidden anxiety epidemic behind "I'm just bad at maths" — and how low-pressure games rebuild belief.
Read moreReal questions about how Guess Who works, safety, and what happens when your child plays.
Sign up and your child can start playing tonight — against Champion, a sibling, or a friend.