User:Arjun sunel/Solvability of a 3x3x3 Rubik's Cube State?: Difference between revisions
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==Solvability Understanding Using A Solved Cube== |
==Solvability Understanding Using A Solved Cube== |
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===Case 1: Twist a corner=== |
===Case 1: Twist a corner=== |
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Suppose, you are holding a solved Cube. Now, pick a corner and twist it clockwise |
Suppose, you are holding a solved Cube. Now, pick a corner and twist it clockwise |
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(or anticlockwise) by 120 degree (by removing it out and rotate by 120 degree and put it again in the same place) |
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The cube state so obtained is unsolvable because it is not possible to solve the twisted corner without disturbing the positions of already solved cubies using any legal moves. |
The cube state so obtained is unsolvable because it is not possible to solve the twisted corner without disturbing the positions of already solved cubies using any legal moves. |
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File:flip_edge.png|Flip an edge. |
File:flip_edge.png|Flip an edge. |
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File:Swap_edges.png|Swap just two edges. |
File:Swap_edges.png|Swap just two edges. |
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File:Swap_corners.png|Swap just two |
File:Swap_corners.png|Swap just two corners. |
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</gallery> |
</gallery> |
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