The task is to design a 3D Grid suitable for inclusion in the 2022 3D Calendar Puzzles publication. The RPM trophy is in memory of Ray Parry-Morris, who designed many successful 3D grids. Anyone may enter. The deadline for entries is January 15 2021. Information on how to submit your entry is contained in the… Read more RPM Trophy 3D Grid Design Competition 2020
Category: Championships
Information about the annual 3D World Championship and RPM Trophy