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Weekly competition 2007-39 (2,3,3OH,4,5,BF,SQ1,MG,MMG,FMC,MM,PM,Relay)

Lucas Garron

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Patricia Li

3x3
16.62, (17.38), 15.74, 16.92, (15.39) => 16.43

3x3 OH
34.40, (23.33), (35.40), 34.21, 35.31 => 34.64
YEAH!! 23.33 was an EASY F2L and a PLL skip. Too bad it couldn't count in the average...
Do you happen to be the Patricia Li from Cal that participated in Mathcounts in middle shcool?
I'm normally against excessive posting, but I've been wondering that, too...
In that case, you were a memorable participant in the countdown round. ;)
 

guusrs

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3x3x3: (20.37) (17.22) 17.40 19.42 18.73 ==> 18.52 (not bad)

Fewest moves:
scramble: D' R2 D2 F R2 U' R D' B F R F2 D F' L' R2 D U'
My solution: U2 L R B2 F2 U' B' U F2 U' B U2 D F D2 R2 D2 R2 D' B R B' R2 D' F2 U F U' F D' L2 (31)
explanation:
pseudo 2x2x3 : U2 L R B2 . U D F (7)
pseudo F2L: D2 R2 D2 R2 D' B R B' (15)
LL-edges + correction: R2 D' F2 U F U' F D' L2 (24)
leaving a corner 3-cycle
at dot insert F2 U' B' U F2 U' B U (24+8-1),
I'm getting better at 2x2x3 blocks!
Took me the whole hour

Greetz;)

Guus
 

cmhardw

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Chris Hardwick
--------------
3x3x3: 18.21 (18.54) (16.11) 17.41 16.54 = 17.39
2x2x2 BLD: 1:03.30; 27.14
3x3x3 BLD: 1:59.49; 2:36.95
4x4x4 BLD: 9:43.96; 9:17.50
5x5x5 BLD: 20:39.41; DNF

I was going for 100% success rather than speed for all BLD solves (so close!!!), but I had 2 mistakes during execution of the 2nd 5x5x5 solve which I only figured out after taking off the blindfold. I still don't know whether it's better to shoot for 100% accuracy on BLD, and then work on getting my times down from there - or to work on getting my times down and then try to improve my accuracy while maintaining my solving times. Any thoughts from the other BLD cubers here?
 

masterofthebass

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I don't know how it is for the big cubes, but I know for the 3x3, that trying to lower my times initially lowered my accuracy, but eventually the success rate gradually came back up. I think that when you try to increase memo/execution, you will inevitably always end up making a mistake. I would think this applies to all cube sizes, not just the 3x3.
 

Mike Hughey

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The rest of my family for this week.

Marie Hughey
2x2x2: 45.59, (35.24), 48.57, (58.75), 35.79 = 43.32
3x3x3: 1:46.45, (1:56.05), 1:39.44, 1:40.56, (1:34.14) = 1:42.15

-----

Rebecca Hughey
3x3x3: 1:44.51, 1:45.41, 1:52.28, (1:55.42), (1:33.27) = 1:47.40

-----

Gloria Hughey
3x3x3: (3:49.70), (DNF), 5:11.73, 8.46.59, 8:34.66 = 7:30.99

Yes, that's my wife. These were her first ever timed solves. She just figured it out today - she finally memorized the last two algorithms she needed for the method I teach. On the DNF, she stopped the timer in frustration when she messed up an algorithm towards the end. I then explained to her what a bad idea that was, so she learned her lesson, I think. She almost went over 10 minutes a couple of times, but she hung in there! I think she'd like you to know she tried one more after these, and it was 3:28.87, so I think the pressure got to her.
 
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vlarsen

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Victor Larsen

3x3x3
Average: 43.35
Times: 46.34, (46,45), 42.79, (35.90), 40.93

This was a pretty big regression, oops...

3x3x3
Average:105.13
Times: 102.76, 108.98, (117.81), (101.57), 103.65
 

jeff081692

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Jefferson James
2x2x2
Average= 8.91
8.91, 8.61, 9.22, (8.42), (11.86)
Getting better.

3x3x3
Average= 26.56
(21.80), 27.56, 25.88, 26.25, (28.88),
Slowly but surely.

5x5x5
Average= 6:14.87
6:59.14, 6:30.84, (6:28.58), (7:37.77), 6:35.62
 

Mike Hughey

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3:49.70, (DNF), 5:11.73, (8.46.59), 8:34.66 = 5:52.03
Is this some sort of weird hex-calculation?

And thanks Mike, for single-handedly raising to number of female competitors to "never seen before" levels :)

Sorry about that. I guess it was wishful thinking. You mean you can't throw out the DNF AND the highest time? :)
 

KConny

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FMC: 41
2x2x1 + 2x1x1: y2 F B' R D' R' L D2 (7)
3x2x2: L2 U R U' B' R2 F R' (8)
F2L: x z F2 U' F U' L R' F R L' (9)
OLL: y r' U2 R U R' U r (7)
PLL: y2 U' x R' U R' D2 R U' R' D2 R2 (10)

How would one go about cycling the corners earlier?
 
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vlarsen

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Victor Larsen

Fewest moves: 36

2x2x2 : F U L U2 R2 B' L2 (7)
psuedo 2x2x3: U R' F [D R' U R D' R'] (16) (with corner cycle at braces)
psuedo f2l: U F2 U' L' (20)
OLL : U2 B' U B L (25)
PLL: B2 U B2 D' R2 F2 U' F2 D R2 U (36)

Dang, its hard to do efficient t perms, but ran out of time before I could try a new path.
 

AvGalen

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How would one go about cycling the corners earlier?
Stickers!

On cube1 put a sticker on corner1-color1
On cube1 put a sticker on corner2-place where corner1-color1 needs to go. This is corner2-color1
On cube1 put a sticker on corner3-place where corner2-color1 needs to go. This is corner3-color1
etc untill you reach cube1-corner1-color1

On cube2 start on corner1-color2
On cube3 start on corner1-color3

Now perform the scramble on all 3 cubes, perform your solve 1 move at a time and look for moments where you can cycle 3 corners. If there are several moments, pick the moment that has the most cancellations

I am very bad at finding corner insertions because I only recognize pure 3-cycles (permutation, not orientation). Guus did a cycle of "F2 U' B' U F2 U' B U". I have no idea how he came up with that alg and how he recognizes the pieces.

I did an experiment this week on Fewest Moves because I couldn't use corner insertions. You will have to wait untill I post the entire solution, but it will look like this:
2x2x3 + All edges permuted (about 8)
Orient all edges + 1 more corner (about 12)
5 cycle of remaining corners (about 8 + about 8 for 2 3-cycles)

Not a very good result for me, but an interesting experiment!
 

KConny

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That made it easier, thx. I hope you'll show me some more tricks at Swedish Cube Day.

I did the rest now:
2x2: 10.28 8.99 (7.08) 9.20 1(3.28) ==> 9.49
3x3: 19.05 (20,70) 17.02 17.74 (14.58) ==> 17.94
3x3 OH: (40.06) 36.67 (35.47) 36.08 37.17 ==> 36.64
4x4: (2:12.41) 2:02.41 1:55.38 1:55.98 (1:46.11) ==> 1:57.92
3x3 BLD: DNF 3:52.80 ==>3:52.80
 

guusrs

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How would one go about cycling the corners earlier?
Stickers!

On cube1 put a sticker on corner1-color1
On cube1 put a sticker on corner2-place where corner1-color1 needs to go. This is corner2-color1
On cube1 put a sticker on corner3-place where corner2-color1 needs to go. This is corner3-color1
etc untill you reach cube1-corner1-color1

On cube2 start on corner1-color2
On cube3 start on corner1-color3

Now perform the scramble on all 3 cubes, perform your solve 1 move at a time and look for moments where you can cycle 3 corners. If there are several moments, pick the moment that has the most cancellations

Arnaud,

when I enter up with a corner 3-cycle I use 3 numbered stickers as you explain, but on only one cube (!). Then I solve that 3-cycle (no matter how), then I perform the scramble and start my solve move by move and see if I can solve the 3-cycle.

During that process I always examine if there are 2 corners in the same layer with stickers both on the same face or if one sticker moves to the other sticker location by turning that face. If so, I check if I can insert the third corner in that layer using only 3 moves (again sticker must match sticker). If this all gives a good result this is a potential insertion. I write down the insertion as [A B A' B'] in which A is the third-corner insertion (3 moves) and B is the layer move which brings one sticker to the other. You can also do [B A B' A'].
Most important: I do not perform that moves, I only write them down (!). Then on paper I check if there are any cancellations at that move position. So I go on for each move in my "solution-leaving-a-cycle" which leaves me with several insertions and at the end I choose the most optimal.

When you practice somewhat with it You'll need 5-10 minutes for finding an optimal insertion. 5-15 minutes when you are somewhat more nervous (during competition)

I you like I could demonstrate you (and maybe others) at the Dutch Championship.

Good luck

Greetz;)

Gus
 
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AvGalen

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Then I solve that 3-cycle (no matter how), then I perform the scramble and start my solve move by move and see if I can solve the 3-cycle.
Do you solve the 3-cycle before or after the scramble? You wrote it down like you solve it twice

I you like I could demonstrate you (and maybe others) at the Dutch Championship.
I would really like that. Hopefully you can teach me BEFORE the FMC-event :)

P.S. Not only was I amazed about your corner-insertion, I was also amazed by the fact that you wrote down your solution CORRECT!
 

tim

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4x4x4 BLD:
Best: 12:55.12
1.) DNF (already posted that)
2.) 12:55.12 (made one memo mistake and corrected it :))
I'm quite happy about that time after only 1.5 weeks of 4x4x4 bld cubing :).

I still don't know whether it's better to shoot for 100% accuracy on BLD, and then work on getting my times down from there - or to work on getting my times down and then try to improve my accuracy while maintaining my solving times. Any thoughts from the other BLD cubers here?

I made the experience, that with going for full speed (with many dnfs) i improved my accuracy considerably. And as a side effect, my memo times decreased :)
 
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joey

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3x3: 18.81 (20.65) 17.19 (14.80) 16.05 Average: 17.35
Not too bad. No lucky solves.

3x3 BLD: 2:19.02 DNF Best: 2:19.02
Many memo mistakes on the first, and I used a different method. Upset I DNF'ed the second one.

3x3 OH: 50.53 (38.00) 57.13 46.93 (1:02.13) Average: 51.53
Wow, a very nice average! That 38.00 is my new PB, first sub-40!
 
Last edited:

Mike Hughey

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4x4x4 BLD:
Best: 12:55.12
1.) DNF (already posted that)
2.) 12:55.12 (made one memo mistake and corrected it :))
I'm quite happy about that time after only 1.5 weeks of 4x4x4 bld cubing :).

I've been doing 4x4x4 bld for 4 months, and I'll be happy if I EVER get a time like that. But I am happy to say that I just got a DNF with only 3 edges messed up and a time of 15:39.83, so maybe there's hope that I'll eventually get there.

Anyway, VERY good job! You're amazing.
 
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Patricia Li

3x3
16.62, (17.38), 15.74, 16.92, (15.39) => 16.43

3x3 OH
34.40, (23.33), (35.40), 34.21, 35.31 => 34.64
YEAH!! 23.33 was an EASY F2L and a PLL skip. Too bad it couldn't count in the average...
Do you happen to be the Patricia Li from Cal that participated in Mathcounts in middle shcool?
I'm normally against excessive posting, but I've been wondering that, too...
In that case, you were a memorable participant in the countdown round. ;)

I do indeed happen to be the Patricia Li from CA who participated in Mathcounts in middle school. Memorable? I choose to take that as a compliment, thank you :)
 
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