Complete the Square — Dots and Boxes for Kids
About this game
Complete the Square is a Play Together hub game in Brain Play. Take turns with a friend or vs Bot drawing lines between dots on a 6×6 grid. Close a box to claim it and go again — classic dots and boxes for shared-device play.
How to Play
Choose 2 Players or vs Bot, pick names and colors, then take turns tapping two neighboring dots to draw a line. Complete all four sides of a square to claim it and play again. When every square is filled, the player with the most boxes wins!
Educational benefits
Complete the Square turns pattern and sequence puzzles into playful brain training. Children practise spotting rules, predicting what comes next, and correcting mistakes — core problem-solving skills that support maths and science readiness.
Skills developed
- Logical reasoning
- Pattern recognition
- Problem solving
- Early maths thinking
What Your Child Will Learn
Strategic thinking, turn-taking, spatial planning, and friendly competition — without timers or progression-star pressure.
Why parents love it
Parents appreciate that Complete the Square feels like play while building real thinking skills. Sessions are short, progress saves per child, and there are no ads or purchases to worry about.
Why teachers use it
Teachers use Complete the Square as a warm-up for maths or STEM blocks. It reinforces sequencing and reasoning in five-minute bursts on classroom tablets.
Learn more
Frequently Asked Questions
- Is Complete the Square free to play?
- Yes. Brain Play games are completely free, ad-free, and work in the browser with no download. Open Brain Play, pick a child profile, and start playing.
- What age is Complete the Square best for?
- The game is designed for children aged 4 to 8, with three difficulty levels so younger and older learners can both enjoy it.
- What skills does Complete the Square help develop?
- Strategic thinking, turn-taking, spatial planning, and friendly competition — without timers or progression-star pressure.
- Why are logic games good for child development?
- Logic and puzzle games strengthen reasoning, patience, and confidence when tackling new problems — foundations for maths and science learning.
- Is Complete the Square a solo puzzle?
- No. It lives in Brain Play’s Play Together category. Kids play with a friend on the same device or vs Bot. Matches count for completions and trophies but do not add progression stars.