No.327
Kercang: String-Release Puzzle
Japanese name: クルチャン（ひも抜きパズル）
Materials
- An assembled, single-layer kercang puzzle
- Solution instructions matching that model
- A tray
How to play
- The facilitator first checks how to remove and replace the cord on the single-layer model. Present it correctly assembled. Examine the rattan frame and the openings through which the cord passes.
- Move the cord ends and loops to explore which openings they can pass through. Do not untie knots, cut the cord or spread the frame.
- Keep the cord loose rather than pulling hard, and pass loops through one at a time. With two or more players, separate the operating and route-observing roles.
- Removing the cord completely is a success. Recall which opening it passed through and in which direction, using the matching instructions to restore the starting arrangement.
- Change players about every 5 minutes, offering one hint at a time. Give everyone two turns. Finish by checking the parts and cord and leaving the puzzle correctly assembled.
Ways to adapt
Older primary: single-layer model with intermediate hints. Secondary students and adults: increase the number of layers.