Geert Hellings
Geert Hellings began collecting rotational puzzles in the early nineties and is currently the President of NKC, the Nederlandse Kubus Club (Dutch Cube Club), an association with 500 members from all over the world.
Geert Hellings began collecting rotational puzzles in the early nineties and is currently the President of NKC, the Nederlandse Kubus Club (Dutch Cube Club), an association with 500 members from all over the world. See less
Geert Hellings's Featured Books