Chapter 4: Conditions · Level 19 of 30

Level 19: Until the Star

Goal: Use “repeat until star” so you do not have to count at all. ★★★ = 2 blocks or fewer.

▶ Watch how it works

“Repeat until ⭐” keeps going until the robot is on the star — you do not need to count.

Got it? Now solve your puzzle ↓ (a different board — work it out yourself!)

Speed

💡 Need a hint?

Add 🔂 repeat until star, then put one “move forward” inside it.

A loop can stop when something becomes true — here, when the robot is on the star. You do not need to know how many times.

Chapter 4 — Conditions: Teach the robot to decide for itself: keep going until the star, and turn only when the path is blocked.

move forwardThe robot moves one square the way it is facing.
repeat until starKeeps running the blocks inside until the robot is on the star.