Polish Open 2007

[tim]

Really great work, Arnaud. What's the optimal solution for solving two disoriented corners?

Does anyone have taken some pictures from the event? It would be really cool, if you could share them with us .

 

[Erik]

Scramble2: D' F' D2 L B U2 L2 F' R U2 L2 D B F' D2 R2 D2 R D L2 U' L2 R2 B F'
Almost solved in 20: R' U F' D2 U2 L2 U' L B' L' D' B D2 B2 D2 B ** R D' R' D'
33: R' U F' D2 U2 L2 U', L B' L', D' B D2, B2 D2 B R D', U R' U' R U R', D R U' R' U R U' R' D2

Hey instead of R D' R'D', I found: x2 R2DR'U'RD'RFR'B2RF'R'B2R2U'
Saved you another move
I'd have to say thx to a certain person who made the that algo to skip OLL
Btw, instead of x2 R2DR'U'RD'RFR'B2RF'R'B2R2U' cube explorer says: x2 U2 F2 R2 D' L' U' L U D R2 F2 (11f*)
btw, the optimal solution is 18 moves (R U' F B R2 L' F B' R2 F2 L' D' B2 U' F R2 B2 L (18f))

 

[Worms]

anybody have the video of the square-1 WR???

thanks

 

[pjk]

http://www.worldcubeassociation.org/results/c.php?i=PolishOpen2007

Lots of amazing records... very nice competition!

Arnaud, you are becoming very good at FMC!

 

[gillesvdp]

Finally I have a proper internet connection.
It will take me a while before I catch up with all the posts on the forum.

That 13 seconds square-1 can be considered lucky if you consider a "cube shape square-1" lucky.
I think one of the scramblers did not execute the scrambles very well because Lars did not get the "cube shape square-1" but I did, but he was consistent with his mistakes apparently. :s

Anyway, Arnaud pointed out a very low propbability event: Mátyás beating me in the OH and me beating Mátyás in the 3x3.

I am quite happy with my best new average in the 3x3 (16.38 seconds) but if you look closely at the times: 2 of them were 14.xx, 1 of them was 15.xx and 2 of them were 18.xx...Without that stupid stress on my 4th solve I could have done better.
But the result is still quite good. ^^

My report is underway. I am almost done with the transportation adventures of Friday. ;-)

 

[DhuCerbin]

Gilles. I captured your sub-20 OH on the tape. If you interested I will try to convert it to some digital format.

 

[Rama]

Me too Gilles and I weren't at the Polish Open....

I will convert it asap and then it's youtube time.

 

[gillesvdp]

That sub20 was some sort of lucky: I did some edge control and luckily all the corners got oriented too. ^^

Anyway, a 4 second J-Perm is quite bad...

 

[DhuCerbin]

anybody have the video of the square-1 WR???

thanks

http://www.youtube.com/watch?v=jzGe6owHStk

 

[pjk]

Finally I have a proper internet connection.
It will take me a while before I catch up with all the posts on the forum.

That 13 seconds square-1 can be considered lucky if you consider a "cube shape square-1" lucky.
I think one of the scramblers did not execute the scrambles very well because Lars did not get the "cube shape square-1" but I did, but he was consistent with his mistakes apparently. :s

Anyway, Arnaud pointed out a very low propbability event: Mátyás beating me in the OH and me beating Mátyás in the 3x3.

I am quite happy with my best new average in the 3x3 (16.38 seconds) but if you look closely at the times: 2 of them were 14.xx, 1 of them was 15.xx and 2 of them were 18.xx...Without that stupid stress on my 4th solve I could have done better.
But the result is still quite good. ^^

My report is underway. I am almost done with the transportation adventures of Friday. ;-)

Was the square 1 already in a cube shape after the scramble? And Lars didn't get the same scramble? What is that all about?

 

[Rama]

Yeah, that ain't really ''cool''...

 

[gillesvdp]

Well, it just means that the Square-1 is a hard puzzle to scramble.

 

[KJiptner]

Was the square 1 already in a cube shape after the scramble? And Lars didn't get the same scramble? What is that all about?

It wasn't in the cube shape, but only 2 turns away from it.

 

[AvGalen]

Sorry Kai, but many people got not 1, but 2 easy scrambles.
1) Already cube shape
2) 2 moves away from cube shape

Lars, Clément and I didn't get any of those lucky scrambles.

And Square-1 is a very easy puzzle to scramble. If you reach the end of the scramble you have very likely done it correct!

 

[ExoCorsair]

Lars, Clément and I didn't get any of those lucky scrambles.

Why not?

Doesn't that violate a WCA rule?

4e) Competitors must solve the same scrambles per round. At the main judge's discretion, scrambling algorithms in preliminary rounds may be randomly chosen from a pool of scrambles, for example to prevent cheating in large competitions.

(http://www.worldcubeassociation.org/regulations/#scrambling)

This clearly is not a preliminary round either; there was just one final round that was a mean of three.

What gives?

 

[AvGalen]

Scramblers are not machines. Apparantly one (or more) of the scramblers made a mistake. The "good" thing is that he/she/they made the same mistake a lot of times.

I don't think there were different scrambles on the sheets.

The really bad thing is that this influenced the competition AND both World Records. The people that had the 0/2 moves scrambles got extremely lucky. The others had really bad scrambles!

 

[masterofthebass]

Well yeah, scramblers cant' be relied on to be perfect, although they should be. Even for the regular cubic puzzles, scramblers sometimes get it wrong. I'm pretty sure at the US open, I noticed some 4x4 scrambles not the same. I probably could have found way more flaws if I wanted to, but it's obviously somewhat a problem, that I don't know if it can be fixed.

 

[AvGalen]

It can be fixed!

At the Lyon Open I used 5 of my own cubes to do the 5 scrambles for regular 3x3x3 and for 3x3x3_oh. I did all scrambling for the final and checked all competitors scrambles with the reference cubes. I had more than enough time to perform all scrambles for the finals by myself and even to correct 2 wrongly scrambled cubes (scramble, compare, notice mistake, solve, redo scramble)

The only puzzle I am not sure that I could scramble perfectly is MegaMinx.

 

[ExoCorsair]

Scramblers are not machines. Apparantly one (or more) of the scramblers made a mistake. The "good" thing is that he/she/they made the same mistake a lot of times.

For all we know, the scrambles could have been intended to start at the cube shape or the two-move cube shape and the 'bad' scrambles were the ones that were not.

 

[AvGalen]

That might have been the case (although unlikely), but that is not the problem. The problem is that some people had other scrambles. That is bad enough by itself, but the event AND the world record were influenced.