Oskar van Deventer is a Dutch puzzle maker. He prototypes puzzles using 3D printing. His work combines mathematics, physics, and design, and he collaborates at academic institutions. Many of his combination puzzles are in mass production by Uwe Mèffert and WitEden. Oskar van Deventer has also designed puzzles for Hanayama.
He was also a Guinness World Record holder for his 17×17×17 “Over the Top Cube” Rubik’s cube style puzzle from 2012 to 2016, when it was beaten by a 22×22×22 cube.
Oskar lives in Leidschendam, the Netherlands. Born in 1965, started puzzle designing at the age of 12. Now more than forty seven years later he has made hundreds of puzzle designs. Several are commercially available.