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I am including my method for solving the cube. It enables me to solve the

cube in 20 seconds on average (since I am not as fast as I used to be 14

years ago :-( ).

1. Do the four edges (white first) (2 sec.)

2. Put the white corner including the corresponding edge from the second

slice. When you put all four white corners, two slices on the cube will be

done. In this stage, almost no algorithms are necessary. Most positions

can be solved with intuition. (4 x 2 sec = 8 sec.)

3. Turn all 8 small cubes from the last slice so that the last face has

the same color. There are only 40 different positions (not counting

symmetrical positions). On average, 10 moves are necessary to do this

phase.(3 sec.).

4. Move the cubes in the last slice so that the cube is solved. There are

only 13 different positions. On average, 10-15 moves are necessary. (4

sec.)

For the whole system, 40+13=53 algorithms are necessary. One also needs

about 8 short algorithms for the second phase. Altogether, 61 algorithms

will enable you to solve the cube in 17 seconds on average, if you can

turn 4 turns per second, and if you can minimize time gaps between

algorithms.

The handling of the last (3-rd) slice is probably the most efficient

approach ane can come up with. One only needs to carry out two

algorithms to do the 3-rd slice. That is very effective. Breaking the last

slice into four stages (turn edges, turn corners, move edges, move

corners) is less demanding on the algorithmic part, but needs much more

moves and more idle time between algorithms.

Jiri Fridrich