Retrospective 1974

Inventor of a three-dimensional cube puzzle that became one of the most successful commercial games in history.
Kirk Lego
Erno Rubik
László Biró
Harold Mattel
QMG Central Challenges Retrospective 1974

Retrospective 1974

Select the correct answer

Inventor of a three-dimensional cube puzzle that became one of the most successful commercial games in history.
Kirk Lego
Erno Rubik
László Biró
Harold Mattel
Sorry, wrong answer.
Well done, good answer!
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