Arancia MeccanicaA moving bead puzzle with seven colors of beads, and a base that resembles an orange.
KristallThe Tetraminx produced in Riga during the soviet era.
Kristals-MA tetraminx with russian origin with a special spiky shape.
Kvadratura KrugaA puzzle from the soviet era. Its title means "Squaring the circle"
Okki Gem I (aka Alexanders Gem)A sticker variant of the Okki which transforms the puzzle back into a puzzle equivalent to the 2x2x2. Produced in East Germany but often customly remade.
PiramidkaTiled Pyraminx from the soviet union. Produced later than the first variants.
RotaOne of the versions of the 2x2x2 Swiss puzzle also known as Tonne