kinch2002
Premium Member
A common OLL alg leaves 3 corners at 23 moves. I guess it will probably beat 31 moves anyway. F U F' R' F R U' R' F' R
Edit: I did x' before that to leave LL on U
Edit: I did x' before that to leave LL on U
A common OLL alg leaves 3 corners at 23 moves. I guess it will probably beat 31 moves anyway. F U F' R' F R U' R' F' R
I found this quite immidiately for your 2x2x3 start:
2x2x3: (F') U R' * F' L D' R' B' D'
F2L-1: R B2 U' B2 U
L3C: R' U R' U' B' R2 B
* = R U' L U R' U' L' U results in a 25 move solution.
Hi FMC lovers,
Did anybody beside me notice that we missed an opportunity to set a what-would-be an "all time unbreakable unofficial record"? The FMC #474 scramble was very unusual position that had 15-move solution. The probability that a random scramble can be solved in 15 moves is about 0.2%. Guus was very close (13 moves away) to finding it after he correctly identified 2 pre-moves D2 B2. Not only that, the optimal solution for 474 scramble does not break corner-edge pairs nor does it break new pairs that are put together during the solve. This means that finding this optimal solution was within our reach.
Here is the optimal solution,
D2 L B D' B2 D L' F D2 F D B R2 D2 B2 (15 HTM)
Mirek
I also understand that. I just tried to figure out the solution as a human-like solve, just wonderingwoow, no, I did miss that!
No way I came up with R2 as extra (inserted) pre-move. Other options made more sense.
@Tomoaki, logical explanation of given solution doesn't mean they could easily be found.
I would like to get into FMC, it seems to me to be by far the best thing in cubing so far. I have found Rhanza's FMC videos on cubing world, however those videos or posted once per week and I am impatient. I was wondering if i could get an explanation of Pre-moves and Insertions. Just so that i can get started finding the fewest moves needed to solve various cube scrambles. I understand that if stuck at the beginning of a solve, you can solve the cube and apply the inverse scramble, find a solution, then write down the inverse of the found solution as the official solution to the given scramble.
-IQubic
fmc.mustcube.net round 476, no time limit
Scramble: D' U' F' R' U F' B' R' B F D2 F R D L' U' F' U2 L' U' L U' F R2 L' F D' U2 L' R'
Premoves L2 U2 B2
B2 U L F //Lots of blocks (3x2x1 + 2x2x1 + 2 ce pairs), 7 moves in total
Can anyone find a good continuation?
Premoves are moves done before the scramble.I don't understand the premoves you make, and I hope you can explain them to me.
L2 U2 B2 followed by B2 U L F, looks like L2 U L F. So I think I might have done something wrong.
Premoves are moves done before the scramble.
woow, no, I did miss that!
No way I came up with R2 as extra (inserted) pre-move. Other options made more sense.
@Tomoaki, logical explanation of given solution doesn't mean they could easily be found.
Good to see you back on this forum Mirek!
Are you still cubing?
So much happening in FMC!
Gus
Missed my submission (with a nice result) in FMC476/speed, so here it is:
Scramble: D2 L' D2 U2 L2 U' F L' U F D' B2 U2 L B2 L B U2 L R' B2 D' R B2 U' R2 F' U' B2 L
Solution: B R F L B2 D' R2 B F2 R' F' U' R' U' R' U' R' U R2 B2 D' R' D B2 U' L U' L' U2 (29 HTM)
1st square: B R
2nd square: F L B2 D' R2
2x2x3 block: B F
Orient edges: F R' F'
F2L minus 1 slot: U' R' U'
Finish F2L: R' U' R' U
All but 2c2e: R2
J-perm: B2 D' R' D B2 U' L U' L' U2
EDIT: congrats to winners in Twente Open 2013.
Thanks, and actually after the solve (during writing aThat is an excellent linear solve! I suck in it, but keep practicing.Missed my submission (with a nice result) in FMC476/speed, so here it is:
Scramble: D2 L' D2 U2 L2 U' F L' U F D' B2 U2 L B2 L B U2 L R' B2 D' R B2 U' R2 F' U' B2 L
Solution: B R F L B2 D' R2 B F2 R' F' U' R' U' R' U' R' U R2 B2 D' R' D B2 U' L U' L' U2 (29 HTM)
1st square: B R
2nd square: F L B2 D' R2
2x2x3 block: B F
Orient edges: F R' F'
F2L minus 1 slot: U' R' U'
Finish F2L: R' U' R' U
All but 2c2e: R2
J-perm: B2 D' R' D B2 U' L U' L' U2
EDIT: congrats to winners in Twente Open 2013.
Anyway, I noticed you could have saved 2 more moves if you finished with another familiar J-perm: U' D' R2 D R D' R2 U R' D R'. You would see that the first move cancels out (no R2 needed before it) soon enough.
Mirek
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