Great activity for hands and head - puzzles. They develop memory, logic, motility, learn to focus and relax - in general, they are very useful, both for children and adults.
Make it a rule to take breaks at work not for a cigarette or a cup of coffee with a donut, but with a puzzle in hand. You will soon notice how you feel good, the appearance is pleasing, the brain began to work clearly and quickly - all this will certainly affect the improvement of your psychological, mental and financial condition. The most compact puzzle (even included in a handbag), a popular and entertaining puzzle for many years, is the Rubik's Cube.
Varieties
At the end of the eighties of the XX century, the Hungarian sculptor Ernö Rubik patented the world's best-selling puzzle - a magic cube (or the Rubik's cube - popularly). And since then you can meet her in almost every house. Both children and their parents are happy to twist and twist the “smart” toy, trying to collect multicolored elements scattered along the edges into one picture. True, not everyone succeeds. The trick is that you need to know the assembly diagram. Today we will talk about how to work with the 4x4 model.
To understand how to assemble a 4x4 rubik's cube, you need to imagine the design of its ancestor - a 3x3 model - in space. It has three internal axes around which external elements rotate - twenty-seven cubes. The face includes nine squares of the same color, a total of 6 faces - 6 colors.
There are specimens with beveled edges and elements of various shapes and sizes, for example, squares and rectangles in one cube. For children, squares draw pictures' fragments, like in puzzles, which makes the assembly more interesting, but much more difficult. For adult fans of the Rubik's Cube, numbers are applied to the squares, that is, it is not enough to collect the faces by color, you also need the numbers to stand in the correct order on each of them.
Today, there are many modifications - 2x4, 4x4, 7x7 and even 17x17! Time-saving Rubik's Cube Championships are held. Professionals surprise others with the ability to assemble a puzzle without looking! The Pole set the last high-speed assembly record - 8.65 seconds, the Italian assembled the cube with one hand in 9.43 seconds. With his eyes closed, his immortal collects this immortal toy in 26.36 seconds. The shortest path to the correct result is twenty moves. The most original performance - assembly with legs in 27.93 seconds!
But we still try to figure out how to assemble a 4x4 rubik's cube. Let us make a reservation right away: you can learn to work with this model for those who have the skills to collect its predecessor - a 3x3 cube.
Basic assembly rules
The main goal at the preparatory stage is to bring a 4x4 cube to a 3x3 cube, then assembling a 4x4 Rubik's cube will become much easier and more understandable. To do this, you must first collect the centers of the cube - these are 4 internal squares of the same color.
Important! The 4x4 form does not have a fixed center, that is, you will need to arrange the colors (central fours) yourself. Further, if only the outer ribs are rotated, the arrangement of the centers will not be disturbed.
After you put the centers in place, the same thing needs to be done with rib pairs or corner elements. With the offset of the outer edges, we set the cube so that when the pair of left or right edges of the puzzle rotates, the elements on the edges converge together.
After solving this problem, the question “how to assemble a 4x4 rubik’s cube” will no longer seem so difficult - it’s almost a 3x3 cube, so we use the well-known formulas, methods and techniques.
Parities
But on the last rotations, parities can arise - difficult situations in which color squares may not be located correctly, and there are no such precedents in a 3x3 cube.
Years of experience and diligence of puzzle lovers have led to the identification of all possible parities and the development of an algorithm for solving these problems.
4x4 Rubik's Cube: assembly diagram
For greater convenience, the article has illustrations with steps towards the correct solution to the puzzle, including the situation with parities.
If you are careful, diligent and follow the advice given above, you will soon be teaching your friends how to make a 4x4 rubik-cube!