The video is the third part of a tutorial series on solving a Rubik's Cube. The instructor, Evgeny Bondarenko, explains how to assemble the yellow cross on the cube and then place the corners in their correct positions.
For assembling the yellow cross, the instructor presents three situations:
1. When the yellow edges form a vertical stick, the instructor provides a step-by-step algorithm to solve it.
2. When the yellow edges form a corner, the instructor provides another algorithm to solve it, which involves a different sequence of moves.
3. When there are no yellow edges on the top surface, the instructor explains that the situation is already solved, and the focus shifts to placing the corners.
For placing the corners, the instructor explains that the goal is to position the corners so that they match the colors of the adjacent center pieces. The instructor presents two situations:
1. When two corners are in their correct positions, and the other two are not, the instructor provides an algorithm to swap the two non-matching corners.
2. When two corners are in their correct positions but are diagonally opposite each other, the instructor explains that the same algorithm should be performed twice.
Throughout the video, the instructor emphasizes the importance of concentration, practice, and review to master the algorithms and solve the Rubik's Cube.
1. The speaker, Evgeny Bondarenko, is explaining how to solve the third part of a Rubik's cube.
2. The speaker assumes the viewer has already learned how to solve the first two layers of the cube.
3. The next stage is to assemble a cross on the yellow side of the cube.
4. There are different situations that can arise when trying to assemble the cross, including a "stick" and a "corner".
5. A "stick" situation is when the yellow edges form a vertical stick, opposite each other.
6. A "corner" situation is when the yellow edges form a corner, side by side.
7. The speaker explains how to solve each situation using specific algorithms.
8. The algorithms involve rotating the front face of the cube clockwise, and then performing a series of moves with the right hand.
9. After assembling the cross, the next stage is to work with the corners and put them in their right places.
10. The speaker explains how to analyze the situation when two corners are in place and the other two are not.
11. The speaker describes an algorithm that swaps the two right corners with each other.
12. The speaker explains how to repeat the algorithm to solve the situation.
13. There is another situation where two corners are in their places but diagonally from each other.
14. The same algorithm is used to solve this situation, but it is performed twice.