Dick Hess, from California, designed this wire brain teaser.
Truly unique puzzles like "The Yak" are a rarity these days; the object of the Yak puzzle is pretty straightforward, remove the handle (cross shape), but the two brass diamond shapes make this extremely difficult.
Can you beat the Yak attack?
Puzzle Master makes a large assortment of disentanglement puzzles, brain teasers, jigsaws, puzzle rings, trick locks, boomerangs, chess sets, etc. This Canadian company specializes in taking traditional puzzle designs and adding their own unique touch.