The Cube (game show) columns. Other equipment in the board game are track pieces, discs, clips, z shaped platform pieces, cannons, blocks, a ball flipper, a beam and card pieces,and a 7 cm x 7 cm x 7 cm plastic cube for playing a series of physical games. The cube is used for a container and to connect onto the cube platform for the electronic games. A reducer also comes with the cube, allowing it to reduce the size of the open top of the cube. This is, in almost all games involving the cube, removed in a simplify. Many well known and classic
Rubik's Cube involve solving cubes which have been scrambled using only 180-degree turns. These subgroups are the principle underlying the computer cubing methods by Thistlethwaite and Kociemba, which solve the cube by further reducing it to another subgroup. Many 3×3×3 Rubik's Cube enthusiasts use a notation developed by David Singmaster to denote a sequence of moves, referred to as "Singmaster notation". Its relative nature allows algorithms to be written in such a way that they can be applied regardless of which side is designated the top or how the colours are organised on a particular cube. When a prime symbol ( ′