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Weekly competition 2008-24

Mike Hughey

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#22
Mike Hughey:
2x2x2: 12.22, 12.13, 6.08, 11.09, 18.72 = 11.81
3x3x3: 34.30, 36.97, 32.75, 30.97, 25.31 = 32.67
Comment: Sometimes I still get bad times like this. Nice I got that last one to save it from total disaster.
4x4x4: 1:51.32 (O), 2:01.67 (OP), 1:59.47 (P), 1:56.02 (O), 2:03.64 (O) = 1:59.05
5x5x5: 3:02.26, 3:02.09, 2:41.36, 3:11.14, 3:02.15 = 3:02.17
Comment: The three times that count sure were consistent.
2x2x2 BLD: 54.13, 1:06.30, DNF = 54.13
3x3x3 BLD: DNF (3:04.19, 2 CO off), DNF (2:49.63, 4EP off), DNF (2:50.00, 3 CP off) = DNF
Comment: Horrifying! My next solve after these three was a 2:21.27 (just something to put here to make me feel better). I can’t do 3x3x3 BLD worth anything this week!
4x4x4 BLD: 12:42.42 (6:40), 10:49.15 (4:57), 9:30.14 (5:03) = 9:30.14
Comment: On the other hand, big cubes BLD were GREAT this week! :) My accuracy on 4x4x4 BLD for the past few weeks has been well over 70%, which is better than my typical accuracy on 3x3x3 BLD has been during that time. I guess that probably means I should probably be trying to go faster on 4x4x4 BLD than I’m doing.
5x5x5 BLD: 22:07.51 (11:29), 21:53.30 (12:32), 21:59.14 (10:55) = 21:53.30
Comment: Wow – all 6 big cubes BLD were successful this week! And the 3 5x5x5’s were all within a minute of my personal best. A nice consolation for my terrible 3x3x3 BLD and multiBLD performance this week.
3x3x3 multiBLD: 6/10 = 2 points, 1:26:49.15 (52:15)
Comment: Horrible – 3x3x3 BLD was just bad for me this week all around. Second cube I missed an L setup move and was off by 3 edges and 3 corners after an L. Third cube was off by 2 edges misoriented; I memorized the wrong sticker. Sixth cube was off by 2 CP and 2 EP – I had mismemorized the cube with edge parity, but no matching corner parity. I tried fixing it by adding a missing edge, but the problem was the corners, not the edges, so my guess didn’t pay off. Tenth cube was off by 4 CO – the hexadecimal on the CO was 5304, but I memorized A304 instead – a common mistake for me. Three of the four errors were mismemorizations. I will certainly not try 10 cubes at the US Open – it’s bad luck for me. Maybe 11, but definitely not 10. :)
3x3x3 OH: 48.34, 43.81, 46.25, 1:03.53, 44.94 = 46.51
Comment: Second good week in a row for me for this – my new PB for an average of 5. Strange – I did these right after my awful 3x3x3 2H solves above; how could I do so bad on that and so good on this?
3x3x3 WF: 2:15.15, 2:26.31, 3:13.68, 2:11.78, 3:00.69 = 2:34.05
Comment: Messed up an OLL on the first one; otherwise it would have been sub-1:30! Messed up a PLL on the third one. If I could avoid the mistakes, I could be getting much better times.
3x3x3 Match the scramble: 2:50.36, 3:08.11, 2:51.09, 1:36.71, 2:00.59 = 2:34.01
Comment: The fourth one just seemed to fall together – all the pairs were almost magically lined up in pairs for me. Clearly I’m really bad at this – I’m not improving much.
2-4 Relay: 2:33.58 (P)
2-5 Relay: 6:04.61 (OP)
Comment: My wife is leaving for China this week, so no time to do these BLD. I may not do them BLD for a while now, since I’d rather work on some more ambitious projects instead. (Mike Hughey is crazy enough to try ...) :)
Magic: 2.96, 2.43, 2.27, 3.84, 3.15 = 2.85
Comment: I probably do 50 solves warmup each week for this, but I never get any better.
Master Magic: 4.15, 5.18, 4.13, 4.53, 4.15 = 4.28
Comment: On the other hand, for Master Magic I keep getting better without doing more than the 5 solves per week for this competition. I don’t know why.
Clock: Still don’t have one.
MegaMinx: 3:26.66, 3:15.08, 2:54.83, 3:05.63, 3:25.28 = 3:15.33
Pyraminx: 28.40, 34.03, 21.71, 21.61, 26.36 = 25.49
Square-1: 1:58.44 (P), 1:37.50 (P), 1:00.52, 1:39.65 (P), 1:37.63 (P) = 1:38.26
Comment: Not bad considering all those parities.
3x3x3 Fewest Moves: 43 moves
R2 U’ F L’ D’ R’ U D’ F’ D’ L2 F2 L F R F’ L’ F R’ D’ F D F’ L’ F2 D F D’ F’ D2 R’ D’ R F’ R’ D’ R D R’ D’ R D F
2x2x2: R2 U’ F L’ D’ R’ U
2x2x3: D’ F’ D’ L2 F’ . L’
3x cross: L D’ F D F’ L’ F2
F2L: D F D’ F’ D2 R’ D’ R
OLL: F’ R’ D’ R D R’ D’ R D F
Insert at .: F’ L F R F’ L’ F R’
L’ L cancel after 2x2x3; F’ F’ at . become F2.
Horrible. I thought I had gotten better at fewest moves, but instead it looks like I just got lucky for a few weeks.
 

cmhardw

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#24
Hey Mike, congrats on your big cube performance this week (6 successes, and fast times)! Good luck with multi next week, I also think you should try 11, and just see what happens.

Mike, you're consistently in the low 20's for 5x5x5 BLD now, and seems you're right at or below 10 minutes for 4x4 every time, that's awesome!

Also as to your statement that you should speed up for 4x4x4 BLD I think you should be careful about that.

With a 70% accuracy rate you have a 1 - (1 - 0.7)^2 = 91% chance to get a solve successfully in competition given 2 attempts in a round. I wouldn't throw away such good odds lightly. Having said that, if you get your first solve successfully, then go break neck fast on the second and see what happens! :-D Also, personally I think sub-10 4x4 is like sub-25 5x5, so yeah I would say that comparatively you're stronger on 5x5x5 than 4x4x4. Try going really fast after your first successful solve next week and see what you get, I think you'll be surprised at the time you get. You may DNF the first couple times going faster, but your brain gets used to it. After a short time that speed starts to become your "normal" speed, and no longer your "going fast" speed.

Congrats again Mike!
Chris
 
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#25
5x5x5 BLD: DNF 13:35 DNF = 13:35

Not good.

Chris, you were faster this time :) It is true that I am consistent at this, but I think I would prefer to have your accuracy. I'm usually off by 2 centers or something of that sort... (first solve was 13:42 off by 2 centers).

MultiBLD: 10/11 in 52:44

You guys are encouraging Mike to try 11 cubes, so I thought I would also go for 11. I was solving as slowly as possible, but I mixed up the letters on one cube and I must have made a mistake trying to fix it.
 

Mike Hughey

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#26
Mike: Next week (if you have enough cubes), I'm telling you to try 11! Might aswell!
Thanks, Joey! My wife gave me 3 more cubes for Father's Day today, so I'm set! So I guess I'll do it, especially since Chris also said I should.

Hey Mike, congrats on your big cube performance this week (6 successes, and fast times)! Good luck with multi next week, I also think you should try 11, and just see what happens.

Mike, you're consistently in the low 20's for 5x5x5 BLD now, and seems you're right at or below 10 minutes for 4x4 every time, that's awesome!

Also as to your statement that you should speed up for 4x4x4 BLD I think you should be careful about that.

With a 70% accuracy rate you have a 1 - (1 - 0.7)^2 = 91% chance to get a solve successfully in competition given 2 attempts in a round. I wouldn't throw away such good odds lightly. Having said that, if you get your first solve successfully, then go break neck fast on the second and see what happens! :-D Also, personally I think sub-10 4x4 is like sub-25 5x5, so yeah I would say that comparatively you're stronger on 5x5x5 than 4x4x4. Try going really fast after your first successful solve next week and see what you get, I think you'll be surprised at the time you get. You may DNF the first couple times going faster, but your brain gets used to it. After a short time that speed starts to become your "normal" speed, and no longer your "going fast" speed.

Congrats again Mike!
Chris
Thanks so much for all the encouragement, Chris! And also, thanks for all the advice. I agree about what you're saying with regard to accuracy. I'm VERY happy with my recent accuracy, and I'm not sure how easily I can bring myself to try going faster. I realize after Chattahoochee that just like you, I really HATE getting a DNF for an event, so I want to do like you do and go for a 90% chance if I can. I like your suggestion of trying to go really fast after I know I have a success, so I'll try it. Actually, I think I was already sort of doing this the past two weeks once I got a successful solve, which is how I got the sub-10s. But I still think I'm being a bit too cautious. In memorization, I double check way too much. And in execution, I have to REALLY push myself to not have pauses; usually I still have quite a few rather significant pauses between letter pairs. So I think there's still quite a bit of room for improvement, if I can get past that.

Oh, and Chris, amazing 5x5x5 BLD times! You remind me I still have a long way to go.

Rafal, you're just awesome! 10/11 in less than 53 minutes is mind-boggling. Just like Tim. :)
 
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#28
Wuqiong Fan
4x4 speed

1. 3:32.84
2. 2:36.31 PLL parity
3. 2:20.59
4. 2:19.17 PLL parity
5. 2:50.47 PLL parity and skip

2:35.79
PB average and PB singles of 2:20, then 2:19.

2x2 BLD
Using old Pochmann
1:22.57 (memo in 25s) Used 4x4, too lazy to go get my 2x2
1:08.53 (memo in 20s) used 2x2.
1:17.87 (memo in 27s) used 2x2.

AVERAGE=1:16.32
Memo was pretty fast. I need to work on execution. J is like 3 seconds and Y is like 5 seconds.
Edit: J1 average of 12--3.21
J2 average of 12--3.17
Y average of 12--4.09

For 2x2BLD, do you count best or average?
Re-attempted the first scramble. Got 0:56.37. I should have used the 2x2 cube to begin with. :p
 
Last edited:

Mike Hughey

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#29
Thanks, Joey! My wife gave me 3 more cubes for Father's Day today, so I'm set!
But... you're not her father? She might aswell buy me 3 more!

So I guess I'll do it, especially since Chris also said I should.
Wow, I feel downgraded :p
It's now become traditional in the U.S. to celebrate father's day for all fathers, not just your own father, so wives sometimes give gifts to husbands, etc.

And don't feel downgraded - I was just commenting about the quantity of comments, not the quality. :)

For 2x2BLD, do you count best or average?
Best.
 
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#31
Chukk

2x2x2: 8.59, 12.77, (15.39), 9.43, (7.39) = 10.26
3x3x3: (29.72), (24.47), 29.56, 26.16, 26.93 = 27.55
4x4x4: 2:37.03 (O), (2:46.03 (O)), 2:37.55 (OP), (2:22.17 (P)), 2:25.22 = 2:33.67
2x2x2-4x4x4: 3:20.22
3x3x3 OH: (1:23.14), 1:12.81, 1:17.61, (1:01.02), 1:05.47 = 1:11.96

All pretty much my average average. Nothing especially good or bad... Boring :p
 
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PCwizCube

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#32
Rubik's Cube Fan

3x3: 29.09, 30.26, 27.32, 30.45, 25.05 = 28.89
Comment: This was an okay average

 
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AvGalen

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Thread starter #33
2x2x2: = 9.19 9.28 6.16 8.72 8.30 = 8.74
3x3x3
: = 23.52 21.77 27.44 22.50 21.69 = 22.60
4x4x4: = 1:48.43 (P) 1:48.52 (OP) 1:41.43 (OP) 1:32.34 (O) 1:47.34 (P) = 1:45.73
5x5x5: = 2:49.05 2:46.58 2:41.63 2:34.96 2:47.02 = 2:45.08
2x2x2_bf: = DNF 59.55 DNF = 59.55
3x3x3_bf: = DNF 6:39.68 4:03.31 = 4:03.31
3x3x3_oh: = 44.43 50.84 55.13 43.56 54.65 = 49.97
3x3x3_match: = 2:44.40 1:51.46 1:25.44 3:45.61 1:22.50 = 2:00:43
3x3x3_fmc: = U R U' B2 U R D' R U' B' R L' D2 L R' B' D B U' B' U R' B' L' B2 L2 U L' D' F' L B' = 32
Using the inverse scramble: B2 R B R D' F2 L' B' D F' R2 U2 B2 U2 R' D2 R' U2 R2 U2 B2
(Do pre-move D' to see what's going on after the triple X-Cross)
2x2x2: B L' F D
2x2x3: L U' L2 B2 L
Triple X-Cross: B R U' B U
F2L (leaving a very bad last layer AGAIN): B' D
OLL (xx): D2 . U R' D R' U' B2 U R' U' D
Undo Premove: D'
Insert edge-3-cycle at .: B R L' D2 L R' B
Total solution for the inverse scramble: B L' F D L U' L2 B2 L B R U' B U B' D' B R L' D2 L R' B U R' D R' U' B2 U R' U'
234-Relay: 1:54.63
2345-Relay: 4:45.05
Magic: = 1.75 2.63 3.16 2.68 2.59 = 2.63
Master Magic
: = 4.59 5.25 4.50 4.34 5.47 = 4.78
Clock: = 18.93 20.00 18.80 22.81 21.91 = 20.28
MegaMinx: = 3:54.96 3:21.71 3:18.44 3:33.43 3:51.19 = 3:35.44
PyraMinx: = 14.93 30.34 15.71 22.33 17.13 = 18.39
Square-1: = 1:17.72 (P) 1:02.11 1:00.97 1:04.09 1:00.08 = 1:02.39

Some good and bad results. A lot of my puzzles need to be replaced, especially my 5x5x5 where I spent about 30 seconds each solve putting popping/popped pieces back into the puzzle.

And to Frédéric Meinnel:
Welcome to the forum and congratulations on your nice solve this week. It proves that you don't need a PLL skip to get great results! I have looked for logical insertions to your solve and there is one obvious one if you switch the order that you perform the L2 and R' that are now directly after your insertion. There may be even better ones, but none that I would have found without using computerhelp. The 3 edges just didn't move much relative to eachother. I have included the algorithms you asked for. The basic idea came from Guus, but I have added some. The basic idea for these algs is that they are edge-3-cycles in 8 moves that give LOTS of possibilities for cancellations. I have grouped the algs so they make more sense. All groups of 3 are the same alg, only shifted 1 move from the beginning to the end (ABCx becomes BCxA and CxAB). All groups of 2 algs have the same beginning but you can vary the quarter-turn. In conclusion: You can start on 3 different faces and end on 4 different faces. If that won't give you a nice cancellation that's REALLY unlucky (happened to me this week). Finally, don't forget that you can inverse/mirror these algorithms to fit your needs.

U2 B2 D2 L' D2 B2 U2 R' (8f*)
B2 D2 L' D2 B2 U2 R' U2 (8f*)
D2 L' D2 B2 U2 R' U2 B2 (8f*)

U2 B2 D2 R' B2 U2 F2 L' (8f*)
B2 D2 R' B2 U2 F2 L' U2 (8f*)
D2 R' B2 U2 F2 L' U2 B2 (8f*)

D2 B2 U2 L' U2 B2 D2 R' (8f*)
D2 B2 U2 R' F2 U2 B2 L' (8f*)


D2 B2 U2 R B2 D2 F2 L (8f*)
B2 U2 R B2 D2 F2 L D2 (8f*)
U2 R B2 D2 F2 L D2 B2 (8f*)

D2 B2 U2 L U2 B2 D2 R (8f*)
B2 U2 L U2 B2 D2 R D2 (8f*)
U2 L U2 B2 D2 R D2 B2 (8f*)

U2 B2 D2 R F2 D2 B2 L (8f*)
U2 B2 D2 L D2 B2 U2 R (8f*)
 
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#34
2x2: 25,07 24,21 11,21 13,11 12,60 ==> 16,64
3x3: 29,87 35,58 30,28 26,76 28,79 ==> 29,65
4x4: 2:48,18 3:26,78 2:05,47 2:46,26 2:05,05 ==> 2:28,35
the first two solves at 2x2 were algos that i didnt know.
3x3 the worst avg in the last half year
4x4 the second one went so fast and then again i messed up the parity fix the avg could be 10 sek lower so well maybe next time
 

Mike Hughey

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#35
Some good and bad results. A lot of my puzzles need to be replaced, especially my 5x5x5 where I spent about 30 seconds each solve putting popping/popped pieces back into the puzzle.
So, that means you're really getting pretty good at 5x5x5 now, right? If you get a 2:45 average while spending 30 seconds fixing pops, that means on a perfect cube you'd do 2:15? Pretty good!
 
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#36
2x2x2: = 9.19 9.28 6.16 8.72 8.30 = 8.74
3x3x3: = 23.52 21.77 27.44 22.50 21.69 = 22.60
4x4x4: = 1:48.43 (P) 1:48.52 (OP) 1:41.43 (OP) 1:32.34 (O) 1:47.34 (P) = 1:45.73
5x5x5: = 2:49.05 2:46.58 2:41.63 2:34.96 2:47.02 = 2:45.08
2x2x2_bf: = DNF 59.55 DNF = 59.55
3x3x3_bf: = DNF 6:39.68 4:03.31 = 4:03.31
3x3x3_oh: = 44.43 50.84 55.13 43.56 54.65 = 49.97
3x3x3_match: = 2:44.40 1:51.46 1:25.44 3:45.61 1:22.50 = 2:00:43
3x3x3_fmc: = U R U' B2 U R D' R U' B' R L' D2 L R' B' D B U' B' U R' B' L' B2 L2 U L' D' F' L B' = 32
Using the inverse scramble: B2 R B R D' F2 L' B' D F' R2 U2 B2 U2 R' D2 R' U2 R2 U2 B2
(Do pre-move D' to see what's going on after the triple X-Cross)
2x2x2: B L' F D
2x2x3: L U' L2 B2 L
Triple X-Cross: B R U' B U
F2L (leaving a very bad last layer AGAIN): B' D
OLL (xx): D2 . U R' D R' U' B2 U R' U' D
Undo Premove: D'
Insert edge-3-cycle at .: B R L' D2 L R' B
Total solution for the inverse scramble: B L' F D L U' L2 B2 L B R U' B U B' D' B R L' D2 L R' B U R' D R' U' B2 U R' U'
234-Relay: 1:54.63
2345-Relay: 4:45.05
Magic: = 1.75 2.63 3.16 2.68 2.59 = 2.63
Master Magic: = 4.59 5.25 4.50 4.34 5.47 = 4.78
Clock: = 18.93 20.00 18.80 22.81 21.91 = 20.28
MegaMinx: = 3:54.96 3:21.71 3:18.44 3:33.43 3:51.19 = 3:35.44
PyraMinx: = 14.93 30.34 15.71 22.33 17.13 = 18.39
Square-1: = 1:17.72 (P) 1:02.11 1:00.97 1:04.09 1:00.08 = 1:02.39

Some good and bad results. A lot of my puzzles need to be replaced, especially my 5x5x5 where I spent about 30 seconds each solve putting popping/popped pieces back into the puzzle.

And to Frédéric Meinnel:
Welcome to the forum and congratulations on your nice solve this week. It proves that you don't need a PLL skip to get great results! I have looked for logical insertions to your solve and there is one obvious one if you switch the order that you perform the L2 and R' that are now directly after your insertion. There may be even better ones, but none that I would have found without using computerhelp. The 3 edges just didn't move much relative to eachother. I have included the algorithms you asked for. The basic idea came from Guus, but I have added some. The basic idea for these algs is that they are edge-3-cycles in 8 moves that give LOTS of possibilities for cancellations. I have grouped the algs so they make more sense. All groups of 3 are the same alg, only shifted 1 move from the beginning to the end (ABCx becomes BCxA and CxAB). All groups of 2 algs have the same beginning but you can vary the quarter-turn. In conclusion: You can start on 3 different faces and end on 4 different faces. If that won't give you a nice cancellation that's REALLY unlucky (happened to me this week). Finally, don't forget that you can inverse/mirror these algorithms to fit your needs.

U2 B2 D2 L' D2 B2 U2 R' (8f*)
B2 D2 L' D2 B2 U2 R' U2 (8f*)
D2 L' D2 B2 U2 R' U2 B2 (8f*)

U2 B2 D2 R' B2 U2 F2 L' (8f*)
B2 D2 R' B2 U2 F2 L' U2 (8f*)
D2 R' B2 U2 F2 L' U2 B2 (8f*)

D2 B2 U2 L' U2 B2 D2 R' (8f*)
D2 B2 U2 R' F2 U2 B2 L' (8f*)


D2 B2 U2 R B2 D2 F2 L (8f*)
B2 U2 R B2 D2 F2 L D2 (8f*)
U2 R B2 D2 F2 L D2 B2 (8f*)

D2 B2 U2 L U2 B2 D2 R (8f*)
B2 U2 L U2 B2 D2 R D2 (8f*)
U2 L U2 B2 D2 R D2 B2 (8f*)

U2 B2 D2 R F2 D2 B2 L (8f*)
U2 B2 D2 L D2 B2 U2 R (8f*)
Hi,

may i add that i have also used that particular 3-cycle multiple time for insertion. I am actually struck by how often cancellation is NOT possible byt those particular algos. Many of them use same first or last layer(s) so maybe it's not too surprising?

An insertion success (wrt cancellation) is more likely when you can use a commutator ABA'B' where B is an inner layer - ie only works for edges not corners ;-)

I will look more into this particular solution when im home - now im at work!!

- Per

PS! Yes im not "fmc-dead" :D The new fully automated fmc-challenge site is now completely working and fully functional. A proper annoucement of this will appear in separate post of course.
 
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#37
Hi Frédéric :)

I found this slight improvement:

R' F D' R'. L2 F' U' L U F L F' D2 B' L' B L F B' L F' L' B L

Now insert R' B R F B' D' B' D F' B at the dot.

This makes R' F D' R2 B R F B' D' B' D F' B L2 F' U' L U F L F' D2 B' L' B L F B' L F' L' B L(33 htm). I'm busy with EC in soccer right now ;-)

Best wishes!

Per
 
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