Guimond centres (4x4)

[Kenneth]

I found you can often solve the first two opposite centres on 4x4x4 using a Guimond first two steps style and it can be done in rather few turns.

Solve first centre in mixed opposite colours. That can mostly be compleated in 1-2 turns or it is even done already. Next pair up two more pices and then, when placing these choose to place it opposite of the first centre you built or exachange two of the first centre pices while placing the opposite ones to get a better pattern or even separate completly. Use the same style for the last two pices and then separate what's left (if any). Separation is exactly the same turns as for 2x2x2/CF Guimond.

Try it, it's nice

 

[Derrick Eide17]

very nice Kenneth, with practice i believe this could be used very effeciently to become a faster way for F2C. nice job.

 

[Kenneth]

Now I tried to solve all six centres opposite colours before I did any separation... It was much easier than I first thought to separate all sides, pretty often you can do two axes in one go.

Rr2 Rr2 preserves all but U/D so it's really easy turns.

 

[hawkmp4]

Huh. I like that! A lot! I'll work with it, see what i can come up with.

 

[Kenneth]

Nice =)

When separating remember to put the last two sides so a centre parity does not occure (get it to the correct coulor order).

But in some situations you may need to fix that, then Uu2 M2 Uu2 does the job for you =)

 

[fanwuq]

Interesting. What's the move counts?

 

[Kenneth]

Just a little better than the normal method. The best part is that you can see more of the solve while inspecting.

But OK, it's like Guimond corners, sometimes it's really easy, I solved first two centres in 6 turns (one side was done mixed in the scramble), if I used the normal method it would have been like 10-12 I guess.

I also tried it on 5x5x5, did all 6 and then separation, timed it and it took 2:30 minutes