This puzzle appears to be similar to the IQ Test, also by Jean-Claude Constantin, however in this case the player is given a very short piece of string and a wooden bead to get in the way of a solution. The objective is to remove the ring from the string (the puzzle is shown solved; in the unsolved position, the ring is on the string with no knots or loops).
Made in laser-cut and turned wood, stainless steel, and string by Jean-Claude Constantin. Jean-Claude Constantin lives in Germany, where he designs and manufactures many different wood and metal puzzles, as well as magic tricks.
People who purchased IQ Test 100 also purchased the following puzzles.