Proceed with one of the following sequences depending on how many solved pairs you have: If you see no correct pairs and only one pair consisting of opposite colors, then there is one correct pair on that layer, and it is opposite to the pair with the opposite colors. If you see no correct pairs but both pairs consist of opposite colors, then there are no correct pairs on that layer. If you see two correct pairs, then all four pairs are correct. The number and location of correct pairs can be quickly identified by merely looking at two adjacent side faces (that is, not top or bottom).įor a given layer, if you see one correct pair and one incorrect pair, then there is only one correct pair on that layer. Such a pair is considered to be solved correctly if the two corners are positioned correctly relative to each other.Ī solved pair will be easy to identify because the two adjacent facelets on the side (not top or bottom) will be of the same color.Ī layer can have only zero, one, or four correct pairs. Solving Corners Orient Top CornersĪ pair here represents two adjacent corners on the top or bottom layer. Ideas and sequences are borrowed from other solution methods, and appropriate attributions are made in those sections. This solution method is based on Minh Thai's Winning Solution. Middle-slice centers will be positioned along with middle-slice edges on the last step. You really only need to position top and bottom centers at that point, but positioning all centers may make things easier for you. Position centers while beginning to solve edges. Orienting cubies, whether done before or after positioning them, is always easy because orientation requires focusing on only one face color and on the patterns that that color makes on the cube.įor middle-slice edges on the last layer, permuting cubies after they've been oriented is a very simple affair, thus reinforcing this principle.ĭo not worry about centers or edges while solving corners. The idea is that it is easier to permute cubies after they've been oriented than before orienting them, because once the cubies have been oriented, the facelet colors that determine their permutation make easily identifiable patterns on the cube. This solution method orients cubies before positioning them. Yet all sequences are minimal (or very close to minimal) by the slice-turn metric.įor an introduction to the notation used in this page, go to the cube concepts page. Strong preference is given to the right face, since it is one of the easiest faces to turn for many people. Step 3: Set corners of the bottom layer by first matching the correct corner matching its desired color.This solution method is designed to solve Rubik's cube and to solve it quickly, efficiently, and without having to memorize a lot of sequences.įor ease and speed of execution, turns are mostly restricted to the top, right, and front faces, and center and middle slices. Step 2: Match colors of all four centerpieces of the lateral face with the edges of the bottom layer one by one and sending the matched pairs in opposite directions and then bringing them again to make a cross of white.Īfter matching all the layers, the cube will look like this. Step 1: First choose a centerpiece of any color (say white) and then make a white cross by bringing all the four edge pieces adjacent to the white center. The easy solution to solve a Rubik’s cube is to follow the approach to first solve the bottom layer, then the middle layer, and then finally the top layer.īelow are the steps to solve a Rubik’s cube. F’: Rotate the front layer anti-clockwise.U’: Rotate the top layer anti-clockwise.L’: Rotate the left layer anti-clockwise.R’: Rotate the right layer anti-clockwise.Set in C++ Standard Template Library (STL).Write a program to print all permutations of a given string.Sort a nearly sorted (or K sorted) array.k largest(or smallest) elements in an array.K’th Smallest/Largest Element using STL.K’th Smallest/Largest Element in Unsorted Array | Set 3 (Worst Case Linear Time).K’th Smallest/Largest Element in Unsorted Array | Set 2 (Expected Linear Time).K’th Smallest/Largest Element in Unsorted Array | Set 1.Reverse an Array in groups of given size.Minimum Number of Platforms Required for a Railway/Bus Station.K Centers Problem | Set 1 (Greedy Approximate Algorithm).Greedy Algorithm to find Minimum number of Coins.Find minimum number of coins that make a given value.Bell Numbers (Number of ways to Partition a Set).Minimum number of jumps to reach end | Set 2 (O(n) solution).Minimize the maximum difference between the heights.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.
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