The One-Answer Question Thread [closed]

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PJKCuber said:
Put a dab of lube on all the screws and then press your center caps on.

My question: I average 27 seconds with a 4 second cross 15 second F2L and 8 second 4LLL.
How can I improve so that I can get sub 20 quickly?How can I sub 10 my F2L and sub 3 my cross?.
Click to expand...
I actually do my cross in about 6 sec
f2l-6 sec
ll-8 sec
i think your f2l is slow .. try using a metronome or go slow look ahead ......
you can achieve sub 20 without lookahead but it'll help you in the long run
 
Future Cuber said:
OMG 3 sec cross...TIPs plzzzz
Click to expand...
Do advanced cross. Try to find the shortest solution when inspecting. Do cross blind. You can even use Rw and F and B if that makes your cross easier. I use Bs a lot for inserting at the back. Before starting off, always make up a solution. Like I will insert the blue forst, then red, then green and then orange. Some peopl tend to make algs in their head but that is not really necessary! Can you post a video of you solving. I need to make my f2l fast :(
 
PJKCuber said:
Put a dab of lube on all the screws and then press your center caps on.

My question: I average 27 seconds with a 4 second cross 15 second F2L and 8 second 4LLL.
How can I improve so that I can get sub 20 quickly?How can I sub 10 my F2L and sub 3 my cross?.
Click to expand...

F2L I don't know haha my f2l is about 13 sec. I am not sub 20, about 22 is my average, but cross is like really easy I am usually sub 2 or sub 1 even on cross just find the 4 peices of your color and plan it out beforehand then you can do cross without even looking so u can be busy finding ur first f2l pair.

Edit: 13 sec for cross+f2l. F2l only is more like 11.

Edit 2: I know I need to work on LL haha I only know half off PLL.
 
a recurring structure in common algorithms

Hi all, :)

The following combinations are well known on permutation puzzles, and there's some more general math behind them:
  • conjugates aba'
  • commutators [a, b] := aba'b'.
Consider the following:
[a, x, b] := axbx'a'xb',​
and note that [a, id, b] = aba'b' = [a, b] if id is the identical operation that leaves the puzzle unchanged.

Just skimming trough the guide I was making, I can find this structure in 5 out of 8 c-OLLs:

Sune: [R, U', L']
Antisune: [L', U, R]
T: [L, F, R'] F'
Bowtie: [L, F, R'] F'
Headlights: R² [D, R', U²] R'.
--
clockwise corner-3-cycle: r' [F, R', B²] R²
​

I'm going to look for it in some more PLL algorithms next, but wanted to get in some feedback in the meantime.

I was wondering:
1. is there some mathematical reason for this prevalence, i.e. is it a more generally useful structure like commutators and conjugates?
2. Maybe somebody explicitly selected algorithms with this pattern for easy memorization? I can't see it highlighted in any of the guides that try to highlight patterns in their algorithms though, like the one from badmephisto.
 
root5 said:
Hi all, :)

The following combinations are well known on permutation puzzles, and there's some more general math behind them:
  • conjugates aba'
  • commutators [a, b] := aba'b'.
Consider the following:
[a, x, b] := axbx'a'xb',​
and note that [a, id, b] = aba'b' = [a, b] if id is the identical operation that leaves the puzzle unchanged.

Just skimming trough the guide I was making, I can find this structure in 5 out of 8 c-OLLs:

Sune: [R, U', L']
Antisune: [L', U, R]
T: [L, F, R'] F'
Bowtie: [L, F, R'] F'
Headlights: R² [D, R', U²] R'.
--
clockwise corner-3-cycle: r' [F, R', B²] R²
​

I'm going to look for it in some more PLL algorithms next, but wanted to get in some feedback in the meantime.

I was wondering:
1. is there some mathematical reason for this prevalence, i.e. is it a more generally useful structure like commutators and conjugates?
2. Maybe somebody explicitly selected algorithms with this pattern for easy memorization? I can't see it highlighted in any of the guides that try to highlight patterns in their algorithms though, like the one from badmephisto.
Click to expand...

Have you looked at the Wiki?
[WIKI]Commutator[/WIKI]
[WIKI]Commutators and Conjugates[/WIKI]
Many of the [WIKI]PLL[/WIKI] algorithms also have a decomposition. For example, look at Fperm.
 
CriticalCubing said:
Do advanced cross. Try to find the shortest solution when inspecting. Do cross blind. You can even use Rw and F and B if that makes your cross easier. I use Bs a lot for inserting at the back. Before starting off, always make up a solution. Like I will insert the blue forst, then red, then green and then orange. Some peopl tend to make algs in their head but that is not really necessary! Can you post a video of you solving. I need to make my f2l fast :(
Click to expand...

But i am doing the advanced cross...
and im really really sorry i cannot post a video :( all i can tell you is that i practised only my f2l
im really really sorry :( :( :( :( :( :( :( :( :( :( :( :( :(
 
Hello!
Did an average of 100!
Results: http://imgur.com/TXopLl8
How to improve further?? My lookahead is not that great! Most solves were bad because I couldnt find pieces! :(

Generated By csTimer on 2014-6-29
avg of 100: 21.65

Time List:
1. 19.31 F2 U F2 U L2 D2 R2 U R2 U' L2 R' D B2 F L U' R U2 B' F
2. 18.73 D B2 L2 F2 R2 F2 D2 B2 F2 L D2 B' L2 B' U B D2 F2 L2
3. 24.02 F B U2 L U' L2 D' B L B R L' B2 R F2 D2 B2 R' U2 L2 U2
4. 18.41 R U2 F2 L R F2 R2 B2 D2 R2 F' U' B' L2 F2 U2 R B U' R
5. 17.14 B2 D2 L' D2 R B' D R B L2 F2 R2 L2 U F2 R2 D2 R2 B2 U'
6. 20.04 D' R2 U2 L2 F2 U' L2 U B2 D' F2 L' B' L2 D U B2 U R F' U
7. 22.07 F2 U2 R2 B' F2 L2 U2 B D2 L2 U2 R' D2 B2 U' L' R2 B' D L' F
8. 20.89 L U2 B2 L B2 D2 L2 R' D2 R B2 U R D' B F U2 B' R D' B2
9. (13.47) R2 F2 D' F2 L2 F2 R2 F2 U' B2 D B D B' U' F' L' U' R' D2
10. 25.84 L2 U L2 U' L2 U R2 U' B2 F2 U2 L B' D U2 R B' D2 U2 R' B2
11. (13.87) F2 R' F2 R U2 L' R2 F2 L F R2 F U B R' F U' B2 D'
12. 18.65 U' D' L2 D2 R' B' R' B2 U2 F' D R2 F2 B2 U L2 D2 R2 U2 F2
13. 21.40 D' R B2 U' R U D' B R' F' U2 R2 U2 D2 B2 R2 F D2 F' D2
14. 23.39 R2 F' L2 F D2 L2 D2 F R2 F U R' F L U2 F R B U' F'
15. 20.70 U2 B2 R2 U' F2 R2 U R2 F2 U' F R' B F2 D F' D2 L' U B' F'
16. 24.24 R2 B' R2 U2 F L2 D2 U2 F2 D' U L' B' D L F' R' B R2
17. 26.53 L F2 U2 R2 B2 U2 L F2 U2 R' B2 D' B' F' U' B' F2 L F' U2 F
18. 18.63 B2 F2 D L2 D' R2 F2 U2 F2 D' F2 L D B F' L2 D L' B L2 R'
19. 18.84 D2 R2 D' F2 D L2 U B2 F2 R2 U' L' B' F2 D L' U2 R2 B D B
20. (39.18) L U D' F' L U2 D' B L B' U2 F' R2 B2 D2 F2
21. 20.26 R2 F2 U2 B2 U' F2 U' L2 D' U L2 F' U L U' R2 F2 R' F' L2 B
22. 23.91 F L2 B2 L2 F L2 B' R2 F' R2 F L U' B' F' U2 L D' F2 D
23. 23.51 U' L2 B2 R2 U' F2 U' B2 L2 F2 U B D B' L B R' U' F L' U2
24. 24.22 L2 B2 D2 B2 U F2 L2 D' L2 B2 U L' B' L D2 L D2 L U B
25. 20.88 F' B D2 L D2 F2 U R' L' U B' R2 F' L2 U2 R2 F' L2 F L2
26. 19.76 D' R2 B2 R' L F' B L B' R2 B2 U F2 U B2 D2 F2 D R2 D
27. 19.37 D2 U' R2 F2 D L2 U' B2 D2 L R' F' D R' U L U2 B' L2
28. 19.55 F2 U2 R U2 F2 L' D2 B2 L' D2 R2 F' U' L2 R2 B' U' F D2 L'
29. 25.68 B2 D' B2 U' R2 D' U2 L2 B2 U2 R D B U2 R' D U2 R F
30. 20.40 R2 U2 R U2 R' U2 L' D2 L' U2 B D2 L' U F' D' R B D U
31. 19.21 R2 B' U B' D2 F' B D' B L' F2 D L2 U F2 D L2 D' B2 D2
32. 18.34 U2 B2 U2 R2 F U2 L2 B' L2 R2 U2 R' U2 L U L2 R B F2 R2 U
33. 17.64 R' D2 R' U2 L2 B2 L2 B2 R' D2 B' R B U F' D U' F D'
34. 26.47 B2 L2 B' R2 F D2 F D2 F' L2 D2 U' L' B' F L2 U F' R B F2
35. (30.46) U' L2 U2 R2 F2 R2 U R2 U2 R2 F2 L' U B' F' U B R' B2 D' R'
36. 24.64 R D2 R' U2 B2 R2 F2 U2 B2 L F R D L' U L D' U2 B' L2
37. 19.66 U' B2 D R2 D2 U L2 F2 R F2 R D' U2 F L2 R D2 R2
38. 20.49 F2 L F2 U2 L D2 R' U2 R2 F2 U2 F' U2 B R' D2 U' R B2 D2
39. 22.63 L' F2 L2 R B2 L' B2 F2 R D2 R' B R2 U' R B D' L' D' U' R
40. 19.22 D B2 U' R2 D2 R2 D R2 U L2 R' U' R2 U' L' U' F2 D' B L'
41. 23.75 D2 F2 R2 B' U2 R2 B' U2 F' D L R2 U2 L2 B U B' U'
42. 25.58 F U2 F' L2 D2 F' D2 U2 B R' U L2 F' R2 D2 R2 U' B'
43. 25.85 L2 F' L2 F R2 B2 R2 B' R2 F' R' D U' L2 D' F' D' U' B' L U'
44. 27.02 F2 L' U' F U2 R L' F' B2 U F2 L' D2 L2 F2 L B2 L' F2 B2 D2
45. 23.77 F2 R2 D2 F2 D B2 R2 D2 F2 R2 U' B' D F2 L2 F' D F R B U2
46. 23.52 R U2 L' B2 L B2 L2 U2 B2 L2 F U F' D L' R' F D' B2 R
47. 17.96 F2 R2 U R2 F2 R2 D B2 U' B2 U' L F' D' U' F L F2 L' R F2
48. 23.39 L2 D2 R2 B2 U' L2 F2 D' B2 D' L2 R B' R2 B2 U L' D' F U L'
49. 23.79 R2 B2 F2 R2 U F2 U B2 F R U' F U B' U' L U B2
50. 24.15 L2 F' U2 B' U2 R2 D2 U2 B L2 D R B R F2 L2 D F L' B2
51. 21.07 B2 U2 R2 U' R2 U B2 R2 F2 U' B2 F L2 B R D' B2 R' B2 L' U
52. 21.71 F D2 R2 U2 F' U2 B2 D2 F' D2 L F U' B' R D' U B2 F' R'
53. 21.09 D2 F2 R2 D' B2 D L2 R2 U L2 D R D U2 F' D2 R' D2 B L2
54. (27.73) L2 U' F2 U2 R2 F2 L2 U L2 D U2 F' R F2 L B D2 R' F' U' B
55. 23.20 L2 U2 R B2 L R D2 B2 D2 R2 B L' U B L D2 L2 B L' R
56. 20.30 D2 B' F' U2 F D2 L2 U2 F R2 F L' B F' R' D' B' U' B' R' U
57. 24.58 R2 F L2 D2 L2 F D2 B2 F L2 F2 D' L' U B2 R B D' B' L R
58. 21.34 B2 D' L2 F2 D' R2 U L2 B2 D2 L B D U2 F' R B L' F2 D' U
59. 24.41 R U2 B2 L2 B2 R2 F2 R' D2 F2 R U L' F' L U' R' F' D' B2 R2
60. 19.09 D2 L2 D' L2 B2 D' B2 R2 B2 U2 R2 F R U' R' U' L' B D B2 F
61. (15.15) D2 L2 B D2 U2 F2 L2 B' R2 D2 U B' D B D B' R D2 L U
62. 27.53 U2 R2 F2 D' R2 F2 U2 F2 D' R2 D' L' B D' U B F' R2 U2 B' D2
63. 22.20 R' D2 F2 D2 R D2 L' D2 B2 L F L B D2 U' B' R2 U2 F2 D
64. (34.22) D2 R2 D2 U2 B2 U2 F D2 U2 B2 L' F' U' R' F' R' B' D2 R B D'
65. 25.20 U2 B2 R2 D R2 F2 U L2 F2 R2 B U2 L' F2 R' D R2 D' U R'
66. 22.04 R' D2 B2 D2 L' F2 L' D2 L2 F2 U' B' D2 R F U F L' B2 R
67. 20.67 L2 R2 F2 D2 U2 F L2 F2 U2 L2 U2 L' D R B2 D' B' L2 R' B' R2
68. 19.41 L D' F U' D2 F L2 D' R D2 F' D2 F' R2 F R2 B' U2 R2 L2
69. 21.27 L' F' B2 D' L D R D B L' F2 L2 B D2 L2 B U2 D2 L2 F' D2
70. 21.32 R2 B U2 F D2 B U2 B2 L2 F' R2 D' L' D' L F2 R2 B2 D R2 F'
71. 20.25 L2 U2 B2 F2 U B2 D U F2 L U2 B' D2 L2 D2 U F' L F2
72. (15.84) R2 B' D2 F2 R2 B R2 F' D R F2 U R F D R' B' F2
73. 20.92 L2 F2 U2 L U2 L2 F2 R B2 L' R' D' F' U2 B2 D' R D2 U2 F'
74. 18.83 L2 R2 U' L2 B2 D2 L2 U F2 R2 B2 R' D' B' L' B L' U B
75. 20.35 U F R U2 B L' U D' L' B L2 F2 R2 U2 R2 U' R2 D' R2 L2
76. 19.51 U2 F2 R2 D2 U B2 D' F2 R2 B2 F' D' F2 L' D B' L' D2 B' R
77. (14.92) R U2 F2 D2 B2 L2 D2 L D2 F2 R' U' B' D' U2 F' D B D2 U' F'
78. 20.96 D' F2 U L2 D' B2 U' L2 D2 B2 U R' D2 B' L' F2 U' R2 D' F' U2
79. 22.21 R2 D' L F L2 B R' F B2 F2 R2 B R' L' F2 L' D' R' D2 U2 F R' F2 L2
80. 22.94 U2 B' U2 F D2 L2 F2 L2 F D2 F L' R D' B F' L' F U R2 F
81. 17.79 U' B' U' B2 U R F' L D' R' F2 D2 F2 L F2 L F2 L2 D2
82. 17.76 D2 R2 D2 F2 L' U2 L F B2 L2 D' F2 U' R2 U' D2 B2 U L2
83. 22.09 B' D2 L2 U2 R2 B L2 R2 B L2 B' L' B2 R' U' L' R2 F2 D' L U'
84. 20.39 B2 U D2 B' U2 F' R2 D' B L F2 U R2 U F2 L2 U' R2 F2 D' R2
85. 23.70 F2 R2 D2 F2 D' F2 R2 D L2 B D2 B' D L' R' B R2 D B
86. 19.40 F' L2 F' L B2 D2 B2 R2 F U2 R2 D' B2 R2 U2 L2 U F2 U' B2
87. (28.37) F2 U2 B2 R2 F2 U B2 D2 L2 B2 L' D B' U L D F2 R2 B' F
88. 22.70 L B' L2 D' F R L F B R2 U2 D' R2 L2 D L2 U L2 F2 U'
89. 22.59 L2 D2 U2 B2 U2 L' R' D2 R2 D' R B' F' U L' U R2 F L
90. 25.18 D2 B2 F2 L2 D' L2 B2 U' B2 U F' D2 R2 B' R' F2 R' B2 D' U
91. 21.90 D2 B2 U F2 L2 D' L2 U' F2 D U' L' F U2 R' D' B2 L2 F' U' F
92. 22.15 F2 L2 B2 L2 D2 L2 B' L2 F2 D' R' F R2 B' L F' L B D B2
93. 23.11 B2 L F2 R U2 L U2 R B2 D' B' L' R2 B' U' F L R2 B2 F2
94. 20.72 B2 U2 L' F2 U2 R D2 F2 L' D2 R' D B F' L' U' L' D R' D L'
95. 20.42 B2 L' F2 U2 L B2 D2 B2 R2 U2 R B' D' B F R' B U L2 D L2
96. 20.95 U L' U2 D' F U F2 B R F2 B2 U R2 U F2 D2 F2 U R2
97. 19.21 L' D2 L' D2 B2 F2 L2 B2 D2 L D2 B' U R2 F' L' F' L2 U' B' U
98. 21.15 F D2 R2 B F2 R2 F L2 U2 L U' B2 R F' U2 B F' U' B'
99. 24.27 U2 L2 F2 L D2 R' F2 D2 B2 R2 B' D B F2 L D' B L D' F
100. 17.62 R2 D2 R2 F2 D B2 R2 U B2 U L2 B' D2 L' U F R2 D2 L' U
 
Future Cuber said:
But i am doing the advanced cross...
and im really really sorry i cannot post a video :( all i can tell you is that i practised only my f2l
im really really sorry
Click to expand...
Practise doing your cross BLD. Take as much time as you need to plan it, but eventually try to get it within the 15 second inspection you'll have in a solve. Try to find shorter solutions; they'll make it easier to plan the cross, as well as making it faster. If you can do it BLD, then you won't be pausing during the cross and that should definitely help with improving how fast you can do it.
CriticalCubing said:
How to improve further?? My lookahead is not that great! Most solves were bad because I couldnt find pieces! :(
Click to expand...
Times are useless without splits. However, if your lookahead is not great, then practise turning slower. Turn as slow as you need to solve the entire F2L without pauses. Gradually increase your turn speed, always trying to not pause. If you can't lookahead, the problem is that you're turning too fast. Remember to turn as fast as possible during your last layer though! I sometimes forget that :p
 
TDM said:
Practise doing your cross BLD. Take as much time as you need to plan it, but eventually try to get it within the 15 second inspection you'll have in a solve. Try to find shorter solutions; they'll make it easier to plan the cross, as well as making it faster. If you can do it BLD, then you won't be pausing during the cross and that should definitely help with improving how fast you can do it.

Times are useless without splits. However, if your lookahead is not great, then practise turning slower. Turn as slow as you need to solve the entire F2L without pauses. Gradually increase your turn speed, always trying to not pause. If you can't lookahead, the problem is that you're turning too fast. Remember to turn as fast as possible during your last layer though! I sometimes forget that :p
Click to expand...

TDM said:
Practise doing your cross BLD. Take as much time as you need to plan it, but eventually try to get it within the 15 second inspection you'll have in a solve. Try to find shorter solutions; they'll make it easier to plan the cross, as well as making it faster. If you can do it BLD, then you won't be pausing during the cross and that should definitely help with improving how fast you can do it.

Times are useless without splits. However, if your lookahead is not great, then practise turning slower. Turn as slow as you need to solve the entire F2L without pauses. Gradually increase your turn speed, always trying to not pause. If you can't lookahead, the problem is that you're turning too fast. Remember to turn as fast as possible during your last layer though! I sometimes forget that :p
Click to expand...
Splits: 2LOLL: Avg of 12: 3.57. Take it as 4 sec
PLL:AO12: 3.67. Take it as 4 sec
Cross: AO12: 2.65. Take it as 3
F2L: Slow Turning with look ahead: AO12: 8.45. Take it as 10 as when solving I tent to turn fast and minimal lookahead.
Therefore, 4+4+3+10 = 21 sec. That is my current average.
Now where to improve?
 
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