This page covers how to print the sheets, the rules of each command card, and how the boards are made.
How to use it
Children lay out command cards to move a paper robot to the goal, with no computer.
- Choose what to learn, the level, the cards and the paper size.
- Press Print to get the board, the command cards and the answer sheet.
- Cut out the cards and the robot. Place the robot on START.
- Lay out the cards, then move the robot one card at a time to check.
Command card rules
| Card | What the robot does |
| Arrows (up, right, down, left) | Moves 1 square that way |
| Forward | Moves 1 square the way it is facing |
| Turn right, Turn left | Turns on its square without moving |
| Repeat □ times … End | Runs the cards in between □ times |
| If blocked … End | Runs the cards in between only when a rock or the edge is just ahead |
The robot cannot move onto a rock or off the board, and it stops at the goal. Each board shows how many cards may be used.
How the boards are made
Boards are 4×4, 5×5 or 6×6 grids, and each puzzle number gives a different layout. Every board is checked to reach the goal within the card limit.
On Repeat and If boards, rocks are placed so that move and turn cards alone go over the limit. Children have to group moves to fit.
Numbers for each level
Easy: 2–3 rocks, and the Sequence limit is the shortest program plus 2 cards. Medium: 4–5 rocks, plus 1. Hard: 6–8 rocks, plus 0. Repeat and If boards may have more rocks.
Notes and your data
- Saving: settings stay in this browser (localStorage, keys starting with
unplugged_) and are never sent anywhere. Save, load and delete them under "Share and save".
- Shared links: the settings and puzzle number go after the "#" in the address. The name is not included, and nothing is sent to a server.
- The lesson ideas are examples written for this site, not an official curriculum.
- Sources: the card rules and level numbers above come from this tool's own puzzle generator and its tests (checked 2026-10-01). No outside sources are used.
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