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Move Counts From TNoodle Scrambles

PingSkills

Member
Joined
Aug 29, 2014
Messages
3
Location
Melbourne
WCA
2014PLUM01
YouTube
PingSkills
Out of interest I generated 50,000 3x3 scrambles using TNoodle. The average scramble length was 19.33 moves. There were 3 scrambles of 14 moves, 34 of 15 moves, 216 of 16 moves, 1244 of 17 moves, 6250 of 18 moves, 19,199 of 19 moves, 20,038 of 20 moves, and 3016 of 21 moves.

Here are the most common moves from highest to lowest:


Move

Count

R2

75,996

L2

75,158

F2

74,670

B2

73,506

U2

73,048

D2

70,093

U'

46,363

U

46,145

F'

44,343

D'

44,336

D

44,135

F

43,767

R'

43,280

R

42,912

B'

42,711

B

42,565

L'

41,350

L

41,345



I did the same for the 2x2 and all the scrambles were 11 moves. Here are the most common moves:

Move

Count

U'

101,695

R'

79,586

R

77,804

U2

75,246

F

67,736

R2

53,380

F'

43,326

U

42,140

F2

9,087

 

Smiles

Member
Joined
Apr 22, 2012
Messages
575
YouTube
JPerm
interesting. what's the lowest legal optimal solution for 3x3 in competition?
 

guysensei1

Member
Joined
Nov 24, 2013
Messages
5,140
Location
singapore
WCA
2014WENW01
I wasn't really surprised with the 3x3 results (except that there were more F's than D/D's), but the 2x2 results seem really weird. Is there any explanation for this?
The 3x3 ones make sense to me. It's just the way the scramble program solves the cube.
 

Stefan

Member
Joined
May 7, 2006
Messages
7,287
WCA
2003POCH01
YouTube
StefanPochmann
What's with 2x2 scrambles and F2?
Why so little?
Probably because people don't like them, so the program tries all other moves first. I wouldn't be surprised if we could eliminate them completely.

We could probably also improve the qtm average. It was ~13.8 in PingSkills' experiment, and something as low as ~11.5 might be possible:
http://ideone.com/Qmixjg
 
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