Logic game
Binairo
Fill the grid with zeros and ones by the rules. No three in a row!
Numbers and quantity
What this game builds
Thinking in two states — yes/no, zero/one. It is the simplest model of how computers reason.
When your child gets stuck
Look for two identical digits side by side — the cell next to them must hold the other digit.
Ask afterwards
Which cell did you fill in without guessing? How did you know no other option was possible?