Rubik's Cube

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An example puzzle from WPC 1999 IB: what symbol should exist in the middle of each of three invisible sides?

Twist the sides of the cube so that it reach the given configuration.

Rule variations[edit]

Theoretically, a normal Rubik's cube can appear on the WPCs, since it is playable regardless of language or culture. However, it doesn't, because in order to solve a Rubik's cube, a bunch of specific knowledge is normally required. Nonetheless, some puzzles based on Rubik's cubes has appeared on the WPCs.

  • Given the sequence of moves, identify the final state of the cube. (from WPC 2017)
  • Given the patterns of three visible sides of the cube, identify symbols present in the middle of three invisible sides. (from WPC 1999)

History of the puzzle[edit]

Rubik's Cube is named after Ernő Rubik (Hungary) who invented it in 1974. It became a worldwide craze in the 1980s.

There are many variants of Rubik's cube, including Megaminx and Pyraminx (both invented by Uwe Mèffert (Germany)). They are often collectively called twisty puzzles.[1]

Appearances in the past WPCs[edit]