Binary search

Find the number in few guesses.

How it works

Always guess in the middle of the range.

• 30 progressive levels, from basic to advanced
• Levels 1 to 3 free, no card

More exercises in Computational thinking

• Commands
• Programmable robot
• Conditionals
• Loops
• Algorithms
• Debugging
• Sorting
• Reading code
• Flowcharts
• Classification
• Visual code
• Cryptography
• Automation
• Programmer mission