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Clever String Puzzle

Clever Engineering, Quick Crafts

overview

we love this physical riddle! it’s a brain-teaser that you have to figure out with your hands.

15 minutes

maker checklist

  • cardboard (about 4″ x 9″)
  • hole punch, scissors, or awl
  • yarn or cord (about 30″)
  • bead, spool, or ring

instructions

1

punch 3 holes in the cardboard rectangle, equidistant from each other. make the holes large enough so they will fit 3 or 4 thicknesses of the cord you are using.

2

fold the cord in half and thread through the middle hole.

3

loop the ends back through the fold in the cord, so it is loosely secured around the cardboard.

4

slip a bead or spool on one of the free ends.

5

thread each free end of cord through an outer hole. leave plenty of slack in the cord, and secure at the back with a knot.

6

THE PUZZLE. pass the bead from the left-hand loop to the right-hand loop.

CLUE. think about different ways to pass the *yarn* through the hole, rather than fitting the *bead* through the hole.