Blindsolving Failure Thread

[Mike Hughey]

Often when 20% or more is solved it's lucky, but I don't know if that should apply on the 4x4x4 since you can always have some solved before starting.

I use 20% as my rule on 4x4x4, which means a fair number of 4x4x4 scrambles are lucky. It's still not all that common to get a lucky scramble, though, so I think it's okay.

 

[McWizzle94]

12:21.5 4x4x4 BLD DNF

I decided to try this again today, but I was off by 3 centers and a 3 cycle of edges. I'm pretty sure I know where I messed up on the centers but I have no idea what happened with the edges. This time, the centers weren't as easy as last time.

Btw, 20% of the centers on a 4x4x4 is 4.8 centers, which rounds up to 5. Considering that getting more than 5 centers solved is fairly common, I don't think 20% is a good definition of lucky.

 

[Mike Hughey]

12:21.5 4x4x4 BLD DNF

I decided to try this again today, but I was off by 3 centers and a 3 cycle of edges. I'm pretty sure I know where I messed up on the centers but I have no idea what happened with the edges. This time, the centers weren't as easy as last time.

Btw, 20% of the centers on a 4x4x4 is 4.8 centers, which rounds up to 5. Considering that getting more than 5 centers solved is fairly common, I don't think 20% is a good definition of lucky.

Nice job! Almost there, and a good time!

Yes, it's true that if you just consider centers, 20% is pretty outrageous for lucky. But usually almost all of the edges are unsolved - if you focus on maximizing solved centers, the average is probably around 1 edge solved. And not many corners are solved either. So if you figure on an average of 1 edge and 1 corner solved, that leaves room for 9 centers solved and it's still not lucky. So most scrambles are non-lucky by this definition. I go by 20% on the overall cube, not piece-type by piece-type, which makes this designation seem reasonable to me.

Back on topic, this is not a failure, but it is the end of a failure for me. I just finally got a 5x5x5 BLD successful, after 7 5x5x5 DNFs in a row. Finally! (I had about decided I had forgotten how to do big cubes BLD. )

 

[byu]

12:21.5 4x4x4 BLD DNF

I decided to try this again today, but I was off by 3 centers and a 3 cycle of edges. I'm pretty sure I know where I messed up on the centers but I have no idea what happened with the edges. This time, the centers weren't as easy as last time.

Btw, 20% of the centers on a 4x4x4 is 4.8 centers, which rounds up to 5. Considering that getting more than 5 centers solved is fairly common, I don't think 20% is a good definition of lucky.

Nice job! Almost there, and a good time!

Yes, it's true that if you just consider centers, 20% is pretty outrageous for lucky. But usually almost all of the edges are unsolved - if you focus on maximizing solved centers, the average is probably around 1 edge solved. And not many corners are solved either. So if you figure on an average of 1 edge and 1 corner solved, that leaves room for 9 centers solved and it's still not lucky. So most scrambles are non-lucky by this definition. I go by 20% on the overall cube, not piece-type by piece-type, which makes this designation seem reasonable to me.

Back on topic, this is not a failure, but it is the end of a failure for me. I just finally got a 5x5x5 BLD successful, after 7 5x5x5 DNFs in a row. Finally! (I had about decided I had forgotten how to do big cubes BLD. )

Did you time it? What was the time?

 

[Mike Hughey]

12:21.5 4x4x4 BLD DNF

I decided to try this again today, but I was off by 3 centers and a 3 cycle of edges. I'm pretty sure I know where I messed up on the centers but I have no idea what happened with the edges. This time, the centers weren't as easy as last time.

Btw, 20% of the centers on a 4x4x4 is 4.8 centers, which rounds up to 5. Considering that getting more than 5 centers solved is fairly common, I don't think 20% is a good definition of lucky.

Nice job! Almost there, and a good time!

Yes, it's true that if you just consider centers, 20% is pretty outrageous for lucky. But usually almost all of the edges are unsolved - if you focus on maximizing solved centers, the average is probably around 1 edge solved. And not many corners are solved either. So if you figure on an average of 1 edge and 1 corner solved, that leaves room for 9 centers solved and it's still not lucky. So most scrambles are non-lucky by this definition. I go by 20% on the overall cube, not piece-type by piece-type, which makes this designation seem reasonable to me.

Back on topic, this is not a failure, but it is the end of a failure for me. I just finally got a 5x5x5 BLD successful, after 7 5x5x5 DNFs in a row. Finally! (I had about decided I had forgotten how to do big cubes BLD. )

Did you time it? What was the time?

Yeah, it was 17:54.47. Nothing special - a little better than average for me, I guess. I was just happy to get it at all, though.

 

[Jacco]

After a long while I decided to practise blindfolded again now I've learnt some turbo algs and some freestyle, but my accuracy is one total mess. In the first twelve solves I tried I only had one correct, about 9 of the 11 DNFs were only one 3 cycle off .
This keeps me motivated anyway, because I want a good accuracy .

 

[Lord Voldemort]

Argh...
I was getting all excited for a my first BLD attempt.
I have it one video, and I'm pretty sure I memoed edges twice.
Well, there's always next time.

 

[McWizzle94]

Yes, it's true that if you just consider centers, 20% is pretty outrageous for lucky. But usually almost all of the edges are unsolved - if you focus on maximizing solved centers, the average is probably around 1 edge solved. And not many corners are solved either. So if you figure on an average of 1 edge and 1 corner solved, that leaves room for 9 centers solved and it's still not lucky. So most scrambles are non-lucky by this definition. I go by 20% on the overall cube, not piece-type by piece-type, which makes this designation seem reasonable to me.

If you go by this definition, then it makes a lot more sense. I guess I will use your definition from now on

 

[ajmorgan25]

Second try at BLD since I learned Old Pochmann with my new memorization technique. The entire cube was permuted correctly, but I had two corners that were twisted. I'm still not understanding parity 100%.

 

[Gparker]

Second try at BLD since I learned Old Pochmann with my new memorization technique. The entire cube was permuted correctly, but I had two corners that were twisted. I'm still not understanding parity 100%.

parity happends when you do an odd number of edges or corners on a cube. so on a solved cube do lets say a J perm. it switches to edges AND 2 corners. whatever you do first, doesnt matter, if you did an odd number of edges/corners, after you are done with edges/ corners, you would do the R perm. i do corners edges. im i did an odd number of Y perms or what ever alg. i would do the R perm because it switches the edges back, if you have an odd number of corners, you will have an odd number of edges. odd+odd=even

 

[ajmorgan25]

Second try at BLD since I learned Old Pochmann with my new memorization technique. The entire cube was permuted correctly, but I had two corners that were twisted. I'm still not understanding parity 100%.

parity happends when you do an odd number of edges or corners on a cube. so on a solved cube do lets say a J perm. it switches to edges AND 2 corners. whatever you do first, doesnt matter, if you did an odd number of edges/corners, after you are done with edges/ corners, you would do the R perm. i do corners edges. im i did an odd number of Y perms or what ever alg. i would do the R perm because it switches the edges back, if you have an odd number of corners, you will have an odd number of edges. odd+odd=even

Ok, that's what I thought. Judging by what you said, I guess my BLD failure was just me memorizing the corners incorrectly rather than a parity problem. When I do the R-perm after the edges, which one do I do?

R(1): R’ U2 R U2 R’ F R U R’ U’ R’ F’ R2 U’
R(2): L U2 L' U2 L F' L' U' L U L F L2 U

 

[Gparker]

the second one, you do a y' and then the second R perm. then a y.

Edit: did you see that the corners were twisted during memo? like in the right place but not flipped the right way?

 

[Feanaro]

I DNFed all my solves at the Drexel competiton and ruined my perfect competition record Oh well, perhaps I'll do better at Chattahoochee

 

[ajmorgan25]

the second one, you do a y' and then the second R perm. then a y.

Edit: did you see that the corners were twisted during memo? like in the right place but not flipped the right way?

Ok, thanks. No, there was only one corner that was correctly permuted. I'm guessing I just messed up the orientation but still permuted the two corners correctly.

 

[fanwuq]

Sleep delayed BLD. Memorized past midnight last night in probably 5 min (I was tired and out of practice.)
Executed this morning in front of my friends at school. I turned really slow, like 1tps. I was off by one 3-cycle of edges. An x2 Ucw would have solved it. I'm still too busy at school to start practicing this, but I'm glad to know that I haven't completely forgotten how to do this.

 

[mande]

2:09 3x3 BLD DNF, off by 1 3 cycle of edges.

 

[Gparker]

no one has posted here in awhile, i guess i will. i just did a 0/4 multi. it was for a website blind competetion, and the worst part is, theres no time limit! i went over my memo so carefully i cant believe i didnt get one right! i have the scrambles

1. U' B L' R2 U' L2 D' U2 B L' U2 L2 B2 D U' L' D U' L F2 U' F L R' B'(off by 2 edges, 3 corners)
2. B' F2 D' F R' U R B2 R B' R' U B2 F' L' R2 F D L2 B L' D2 U2 F' R(2 flipped edges)
3. U' L' F2 R2 U2 F2 U R' D2 B2 L2 B L2 B L F2 D' F2 D2 B L U2 L D2 U(2 flipped corners)
4. L' B L R' D' U2 F2 L2 U2 F2 L B2 D' F' U' L D U2 B2 U2 R U' L2 B' U' (undid a setup move wrong so pretty much the whole cube!)

will try again for weekly comp. soon

 

[DavidWoner]

2:34 DNF, did a U2 somewhere during exec so I was off by U2 and 4 edges at the end. I think I might have performed parity as U' F2 U M2 U' F2 U' instead of U' F2 U M2 U' F2 U. Would have beaten my PB by about a minute, even though the scramble is lucky. U' R B2 L' R D2 U2 L D U' B U B2 D2 U2 L2 D' U' R' F L' B' D2 F L

 

[happa95]

2:34 DNF, did a U2 somewhere during exec so I was off by U2 and 4 edges at the end. I think I might have performed parity as U' F2 U M2 U' F2 U' instead of U' F2 U M2 U' F2 U. Would have beaten my PB by about a minute, even though the scramble is lucky. U' R B2 L' R D2 U2 L D U' B U B2 D2 U2 L2 D' U' R' F L' B' D2 F L

1:29.33, same scramble. Not PB but very nice.
EDIT: oops forgot this was the BLD failures thread lol.

 

[trying-to-speedcube...]

4x4 BLD: DNF in about 40 minutes... Off by 8 centers, 7 edges and 2 corners -.- Turns out I skipped one of my images...