what is rubix cube?
The Rubik's Cube is a 3D combination puzzle that was invented by Hungarian sculptor and professor of architecture Erno Rubik in 1974. It consists of a cube with six faces, each made up of nine smaller squares of a particular color. The colors are typically white, yellow, blue, green, red, and orange.
The objective of the puzzle is to scramble the colors on the cube and then solve it by returning the cube to its original state, with each face consisting of one solid color. The cube can be rotated horizontally and vertically to achieve this goal.
The Rubik's Cube quickly became popular around the world after it was introduced in the 1980s, and it continues to be a popular puzzle today. It is widely regarded as one of the best-selling toys of all time, with over 350 million units sold worldwide.
Types of rubik cube?
- 3x3 Rubik's Cube: This is the classic Rubik's Cube that most people are familiar with. It has 6 faces, each consisting of 9 smaller cubes, and the objective is to solve it by arranging each face so that it has one solid color.
- 2x2 Rubik's Cube: This is a smaller and simpler version of the Rubik's Cube, with 6 faces each consisting of 4 smaller cubes. It is often used as a beginner's cube or for speedcubing competitions.
- 4x4 Rubik's Cube (also known as Rubik's Revenge): This cube is a more complex version of the classic 3x3 Rubik's Cube, with 6 faces each consisting of 16 smaller cubes. It requires more advanced algorithms to solve.
- 5x5 Rubik's Cube (also known as Professor's Cube): This cube is even more complex than the 4x4 Rubik's Cube, with 6 faces each consisting of 25 smaller cubes. It is a challenging cube that requires advanced techniques to solve.
- Other variations: There are many other variations of Rubik's cubes, including cubes with irregular shapes, cubes with different numbers of sides, and even electronic Rubik's cubes that can scramble and solve themselves.
How to solve a rubik's cube?
- First, familiarize yourself with the terminology used to describe the cube's faces. The faces are labeled as follows: Front (F), Back (B), Right (R), Left (L), Up (U), and Down (D).
- Start by solving the first layer. Choose a color for the first layer, and find the center piece that matches that color. Then, locate the edge pieces that have the same color as the center piece and align them with the corresponding center. Finally, add the remaining corner pieces that belong to that color.
- Solve the second layer by finding the edge pieces that have the same color as the center of the adjacent face. Align the edge piece with the corresponding center, and then rotate the U face until the edge is in the correct position. Finally, use the following algorithm to insert the edge piece: F U R U' R' F'.
- Now, solve the top layer. First, make a cross on the top face by aligning the edge pieces with the corresponding center. Then, position the corner pieces so that the colors on each face match the adjacent centers. Use the following algorithm to insert the corner pieces: R' D' R D.
- Finally, orient the top layer corners. Use the following algorithm to twist the corners until they are in the correct position: R' D' R D until all the corners are oriented correctly.