Farbengleichheitsmuster auf verdrehten 2 × 2 × 2 und 3 × 3 × 3 Rubik-Würfeln.

The article by Professor Rainer Hollerbach from the University of Leeds deals with color parity patterns on twisted 2 × 2 × 2 and 3 × 3 × 3 Rubik's cubes. It presents 21 different parity patterns on the 2 × 2 × 2 cube that exhibit interesting symmetries. These patterns can then be combined with the other pieces on 3 × 3 × 3 cubes. The article emphasizes the mathematical definition and precision of these patterns and points out that they have handedness and differ from their mirror images. Various patterns on the Rubik's Cube are examined and properties and relationships between the patterns are described, including the combination of corner patterns with the centers and side pieces of the cube. [Extracted from the article]