Dutch Open 2007

[AvGalen]

Mike: I lost the multi-blind National Record to Ton. Multi-blind was almost impossible because of all the noise. Single blind were very hard scrambles (8 mis-oriented edges, 7 mis-oriented corners, 3-2-2 cycles for corners, 4-4-3 cycles for edges) but the conditions were very good (silent audience, middle of day, >3 hours of sleep the night before)

Guus: I have the scramble for Fewest Moves at home. I will try to post it tonight. I spent to much time on a good F2L again (found something nice, wrote it down wrong, spent 30 minutes finding it again) and DNF-ed. There was a good beginning with both the regular and inverse scramble. Clément Gallet won with a pseudo 2x2x3-block.

And I did very well in the second day. I think I broke my 3x3x3 average both times, as well as my 4x4x4 and 5x5x5 average. And I had a sub 2:20 5x5x5 solve.

Erik got a black Olympic 5x5x5 cube that looks and feels a lot like an Eastsheen, but turns a little better. It has to be broken in though.

 

[adragast]

Nothing to add... congratulations to Erik, first to manage to beat the world record and secondly to be very humble (like "no, I was just lucky, it was a PLL skip...").

 

[Erik]

that was about the first thing I said after I did it, anyone could've had a PLL skip and get the WR I think... just the F2L/OLL was ok

 

[AvGalen]

I think a lot of people have had PLL-skips. You just had the best solve before the PLL of all of them

I think 9.77 is very impressive, even without PLL!

 

[Pedro]

Yeah, congratz Erik!

I tought that the 9.86 just could be beaten with another lucky solve...and it was haha

but...I think it is posible to beat that with non-lucky solve(s)...just the right scramble, right person, right day...

some people did better than that at home, without lucky...so...

 

[Foxpapa]

Yeah, congratz Erik!

I tought that the 9.86 just could be beaten with another lucky solve...and it was haha

but...I think it is posible to beat that with non-lucky solve(s)...just the right scramble, right person, right day...

some people did better than that at home, without lucky...so...

It is certainly possible. the 9.90 of Edouard Chambon isn't a lucky solve, so...

 

[Erik]

Yes it is very possible indeed, I did 9.86 (lol) at the mc donalds later that day and also a sub 9.50. Joel 'sub-10' van Noort is hitting quite some sub-10's too!

 

[Joël]

Yeah, congratz Erik!

I tought that the 9.86 just could be beaten with another lucky solve...and it was haha

but...I think it is posible to beat that with non-lucky solve(s)...just the right scramble, right person, right day...

some people did better than that at home, without lucky...so...

It is certainly possible. the 9.90 of Edouard Chambon isn't a lucky solve, so...

That is debatable:

i entered the last pair with the F face
that skipped me the OLL
you can consider that as lucky

If it wasn't lucky, it was at least very fortunate.

 

[Pedro]

yeah...what are the chances to get corners oriented when you do a different insertion? I think nobody calculated that yet...

 

[Erik]

this was not only corners but just the whole F2L I think he got the normal RU'R' case and inserted it with U'R'FRF' to skip OLL..

 

[Pedro]

this was not only corners but just the whole F2L I think he got the normal RU'R' case and inserted it with U'R'FRF' to skip OLL..

didn't understand that...

I meant...what are the chances to get corners (of the LL) oriented, when you insert the last pair with R' F R F' instead of U R U' R' (or something similar)

 

[h3ndrik]

that way of inserting is only affecting the edges if i think of it correctly. there are 8 different orientation cases for the corners (solved state already included), so i think when you insert the pair the zbf2l way (orienting LL corners while solving last f2l pair) you have 1/8 chance of an oll skip.
please correct me if im wrong, thanks

 

[Lt-UnReaL]

Johannes or someone should come up with some mathematical equation to figure out the chances.

 

[Jack]

That was in the thread about the solve... It is 1/27, because there is a one in three chance a corner will be oriented, which means one in nine of two oriented, and one in 27 of three oriented and then the fourth one must be correct.

 

[guusrs]

Johannes or someone should come up with some mathematical equation to figure out the chances.

The chances to get an OLL skip is 1:3x3x3x2x2x2 = 1:216
The chances to get a PLL skip is 1:4x3x3x2 =1:72
The chance to get an CO skip is 1:3x3x3=1:27
The chance to get an EO skip is 1:2x2x2=1:8 (and Zbigniew Zborowski knows all 1 step LL algs to handle these!)
I think many world-top-25 cubers already had many lucky cases and Erik is now the fastest. I guess that the single solve world record will only be broken by another lucky case.

Sometimes lucky cases are in the beginning of a solve but of you see the other solve-times of that same world-record round there was no luck at the beginning.

 

[Erik]

Johannes or someone should come up with some mathematical equation to figure out the chances.

The chances to get an OLL skip is 1:3x3x3x2x2x2 = 1:216
The chances to get a PLL skip is 1:4x3x3x2 =1:72
The chance to get an CO skip is 1:3x3x3=1:27
The chance to get an EO skip is 1:2x2x2=1:8 (and Zbigniew Zborowski knows all 1 step LL algs to handle these!)
I think many world-top-25 cubers already had many lucky cases and Erik is now the fastest. I guess that the single solve world record will only be broken by another lucky case.

Sometimes lucky cases are in the beginning of a solve but of you see the other solve-times of that same world-record round there was no luck at the beginning.

That last thing was maybe because I started on yellow, though I'm not sure I did... Opposite colour solving for president

 

[Pedro]

Johannes or someone should come up with some mathematical equation to figure out the chances.

The chances to get an OLL skip is 1:3x3x3x2x2x2 = 1:216
The chances to get a PLL skip is 1:4x3x3x2 =1:72
The chance to get an CO skip is 1:3x3x3=1:27
The chance to get an EO skip is 1:2x2x2=1:8 (and Zbigniew Zborowski knows all 1 step LL algs to handle these!)
I think many world-top-25 cubers already had many lucky cases and Erik is now the fastest. I guess that the single solve world record will only be broken by another lucky case.

Sometimes lucky cases are in the beginning of a solve but of you see the other solve-times of that same world-record round there was no luck at the beginning.

what about inserting the last pair in another way? doesn't that change anything at all?

 

[masterofthebass]

I think the chance is still the same, because that stat is figured by possible combinations, not doing the move RUR'. There would have to be a different calculation for a particular insert, and then someone relating that to the other one. I'm not sure how to go about doing this, but I think that's what you would have to do to compare different inserts.

 

[Erik]

So if the chance of good corners is 1/27 as Guus says and you know that they will be wrong with RU'R' and try R'FRF' instead the chance is just 1/26 I think...

 

[AvGalen]

Here is the scramble for Fewest Moves:

B F2 D B' F2 R' B' F' L2 R' B' F D U' L' U R' D2 B2 R D' F L' R D

and for your convenience the inverse scramble:

D' R' L F' D R' B2 D2 R U' L U D' F' B R L2 F B R F2 B D' F2 B'