How to Solve Rubik`s Cube by Vishki
Rubik's Cube is a 3-D combination puzzle invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik. Originally called the "Magic Cube", the puzzle was licensed by Rubik to be sold by Ideal Toy Corp. in 1980[3] via German businessman Tibor Laczi and Seven Towns founder Tom Kremer, and won the German Game of the Year special award for Best Puzzle that year. As of January 2009, 350 million cubes had been sold worldwide making it the world's top-selling puzzle game. It is widely considered to be the world's best-selling toy.
In a classic Rubik's Cube, each of the six faces is covered by nine stickers, each of one of six solid colours (traditionally white, red, blue, orange, green, and yellow, where white is opposite yellow, blue is opposite green, and orange is opposite red, and the red, white and blue are arranged in that order in a clockwise arrangement). An internal pivot mechanism enables each face to turn independently, thus mixing up the colours. For the puzzle to be solved, each face must be returned to consisting of one colour. Similar puzzles have now been produced with various numbers of sides, dimensions, and stickers, not all of them by Rubik.
Although the Rubik's Cube reached its height of mainstream popularity in the 1980s, it is still widely known and used. Many speedcubers continue to practice it and other twisty puzzles and compete for the fastest times in various categories. Since 2003, The World Cube Association, the Rubik's Cube's international governing body, has organized competitions and kept the official world records.
Move Notation:-
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".[29] 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.
- F (Front): the side currently facing the solver.
- B (Back): the side opposite the front.
- U (Up): the side above or on top of the front side.
- D (Down): the side opposite the top, underneath the Cube.
- L (Left): the side directly to the left of the front.
- R (Right): the side directly to the right of the front.
- ƒ (Front two layers): the side facing the solver and the corresponding middle layer.
- b (Back two layers): the side opposite the front and the corresponding middle layer.
- u (Up two layers) : the top side and the corresponding middle layer.
- d (Down two layers) : the bottom layer and the corresponding middle layer.
- l (Left two layers) : the side to the left of the front and the corresponding middle layer.
- r (Right two layers) : the side to the right of the front and the corresponding middle layer.
- x (rotate): rotate the entire Cube on R.
- y (rotate): rotate the entire Cube on U.
- z (rotate): rotate the entire Cube on F.
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