EntityQ1176665· pop 16· linked from 121 articlesDavid SingmasterSign in to saveBritish mathematicianConnectionsRubik's CubeEntityRubik's MagicEntitycombination puzzleEntityLondonCitymathematicsEntityCyprusCountryHelsinkiEntityX (social network)ConceptalgebraEntitySicilyEntityInternational Standard Book NumberEntityPisaEntityBBCConceptnumber theoryEntityWayback MachineEntityThe GuardianEntityRoger PenroseEntityM. C. EscherEntityUniversity of California, BerkeleyEntitycombinatoricsEntityCategories1938 births2023 deaths20th-century British mathematicians21st-century British mathematiciansAcademics of London South Bank UniversityAmerican expatriates in EnglandCalifornia Institute of Technology alumniMathematics popularizersPeople from St. Louis County, MissouriRecreational mathematiciansRubik's CubeUniversity of California, Berkeley alumni