Blindsolving Failure Thread

8x8x8 BLD: DNF [1:44:19.16, 56:xx, 3oO]

My first try. I missed it by just 3 obliques! It looks like I probably cycled two pieces in the wrong direction.

One interesting thing that happened is that immediately after I finished the attempt, my triceps started cramping up badly. I think it was from holding that incredibly heavy cube in the air for so long. It's exhausting.

Oh, and I also had my first real 8x8x8 pseudo-pop on that solve - about 3 pieces almost came out of the puzzle. I probably spent about a minute trying to get one of the middle obliques back in - it was really scary.

Scramble, for reference (thanks qq for adding the scrambler to qqtimer, and also thanks for goading me into trying this!):
F r2 4f2 4u u2 l 4u 3u2 l' r2 f B' 3r2 d2 l2 L' R2 3u' d' L2 3l l2 D' b 3u' 3f B' 3u2 u' 3d2 3f 3l2 L 4f 4u' R r' 3f' 4f2 l2 R2 r2 L' B u2 l d2 R2 3b 3r' 3d 3l2 3f b B' 3d2 3u F 3r2 d2 D' L' 4f 3r' L2 d' D2 4u u' F r2 U r2 3r2 3d2 U2 R' f2 3l 3u B' 3f2 D' 3r' 4r2 3b L 3r2 4u 3r2 U' 4u' F 3f2 3r2 R' b' 3d l2 D2 u' 4f' 3r' r' d 3f2 D 4r2 U2 b2 3l2 4r u2 3u2 L2 b2 R' 4u2 b2 B

Edit: Actually, I studied my mistake a bit; it wasn't an execution mistake - I memorized two pieces backwards. I memorized LH when it should have been HL. I have a common problem with occasionally mixing those two faces up; I don't know how to fix it. I guess the nice way to look at it is that I made no execution mistakes.
 
Last edited:
2:25.35 3BLD DNF. 2 flipped edges. L' R2 F2 L2 R' D' U R D' R D' F U' R' F2 U R2 D2 F U B F L R B' R F2 D L2 F'

LoBster Temple Run "VJ" "CU" HeaD "MO" for edge memo. "MO should've been memorized as "MaD", leaving me with 2 flipped edges. (UR and DF)

Would've been a PB by 30 seconds.
 
Although a success; I thought this a more appropriate place...

Just had what would have probably been my new PB 3x3 BLD. When I opened my eyes, the cube was solve, but my laptop, which I was using to time, was sitting on the boot screen asking if I wanted Linux or Windows... I have been having some stability issues with my laptop lately, so my guess is that it blue screened and rebooted.
 
Carson said:
Although a success; I thought this a more appropriate place...

Just had what would have probably been my new PB 3x3 BLD. When I opened my eyes, the cube was solve, but my laptop, which I was using to time, was sitting on the boot screen asking if I wanted Linux or Windows... I have been having some stability issues with my laptop lately, so my guess is that it blue screened and rebooted.
Click to expand...

please choose Linux. :D
similar thing happened on my android phone, when restarted while timing. :P
 
8x8x8 BLD, second try: DNF [1:33:30.72, 45:30, 2oO 3iO 3oW]

Much worse this time: 8 pieces wrong, 3 mistakes. But the time improvement was definitely nice and more than I was expecting. The good news is that this had two locations where I couldn't recall the memo for a while and had to actually figure it out by process of elimination. I'm sure I spent at least an extra five minutes on trying to recall those two locations, so if I ever have totally smooth recall, that should put me sub-90. Interestingly, one of the two locations I couldn't remember was the very first location I memorized; I find that happens a lot to me - especially on big multi attempts. I think what happens is that I'm not yet really in the mindset to memorize, and so my image isn't as strong on that first location as it is on others. I think I really need to remember to go back to that first location at the end of memorization and make sure I have a good mental picture of it.

Scramble:
r 3u2 F' b' r 3l' b d b 3f L' u 3u2 3b 3f' 4f L2 b f' L r2 3u' R' u2 R U' R2 L' D l' D2 R2 F' r2 4f2 F' f' u2 d2 3b2 U2 r2 R2 l 3u D 4u' 3r 4f2 B2 3u B' u B' 4u r2 3f 3d2 3u 3l2 4u F' 3l u b F2 4r 4u2 4f' D2 3d' 4f 3f2 4r 3l2 L 3f2 F2 D' 3r' D 3r 4u U L 3b' d' F' U' u2 L 3d' D 3l 4f' R' 3b' 4f2 R2 4f2 u' f' 4f2 3r 4f2 l2 4r R' 3u2 L' 3l l' 3b2 D R 3u d2 f U2 l2
 
First attempt at MultiBLD: 1/2 in 8:02.05

Attempted to do a journey-ish memo for the first cube, then just memoed the second cube as normal. Unsurprisingly, the cube I memoed normally was solved with no problems, but when I got to the other one, it didn't go quite as smoothly... Was fairly sure I did edges right, but couldn't remember the corners at all. Gave up after about a minute of trying to recall the first corner pair to find that edges weren't solved, so pretty terrible all round :p
 
First full 4BLD attempt: DNF

Memo was probably about 15 minutes (didn't time), double and triple checked so was completely sure of everything. Executed, took off blindfold, was sure it would be solved but unfortunately no. Centres were solved, off by 4 corners and 10 wings. Turns out I missed a move in one of the r2 setups when the cube locked up a bit :mad:
 
4BLD
DNF(46:28.75)[28:59.99]

Off by 6 centers. I have no idea where I went wrong. Good to see I got this close on my first attempt though!

The scramble was the first one for 4BLD in this week's weekly competition.
 
8x8x8 BLD, third try: DNF [1:17:16.70, 40:20, 6iW, 5iX, 6mO, 5iO]

Worse still, but faster still. Memory was very secure. I actually think all 22 pieces might be accounted for by a single bad algorithm execution involving all double turns; I even remember it - I was in the middle of it, and something just felt wrong.

At this point, it's getting where this is not really any worse than a big multi attempt - it's pretty nice!
 
Mike Hughey said:
I actually think all 22 pieces might be accounted for by a single bad algorithm execution involving all double turns; I even remember it - I was in the middle of it, and something just felt wrong.
Click to expand...

What alg is that? I don't think I've heard of any algs like that

my failure: DNF(7:36.13)[3:17.89]
(5bld)

I decided to randomly do a solve even though I haven't done bigbld in months. I am 100% sure I messed up the first corner alg. Also, I forgot when to switch buffers for x centres so I would have messed up there too because I guessed.
 
aronpm said:
What alg is that? I don't think I've heard of any algs like that
Click to expand...
I'm glad you asked this - it made me look harder for what actually happened, and now I think I really remember it.

I was wrong about it being all double turns; it was half double turns and half quarter turns. So it looks like it's reasonable that you don't know of any algs like that - I was wrong thinking it was all double turns.

Still, I'm interested in where I went wrong.

I didn't appreciate SiGN notation all that much before now, but I finally actually need it to describe what I was doing, so I'll use it here. (I hope I get it right.) I was trying to do the following algorithm:
4L' B2 4L 2B2 4L' B2 4L 2B2

Instead, I performed:
4L' B2 4L 2B2 4L B2 4L' 2B2

Performed on a solved cube, that moves 23 pieces. I was obviously working on obliques, which is what I do first (after corners). So if one of the inner obliques and one of the inner X centers were interchanged with a like-colored piece, since I didn't actually solve the bottom oblique I was trying to solve, I could have wound up with exactly those 22 pieces unsolved. Considering I really remember trying to do an algorithm like this, and I got confused in the middle of it, I think it's highly likely that's my mistake.

aronpm said:
my failure: DNF(7:36.13)[3:17.89]
(5bld)

I decided to randomly do a solve even though I haven't done bigbld in months. I am 100% sure I messed up the first corner alg. Also, I forgot when to switch buffers for x centres so I would have messed up there too because I guessed.
Click to expand...
Wow, fast!
 
Mike, amazing! wish you all the luck of the world for next attempt, I believe we all know the annoying feeling of undone job before first success in bld some cube. So, all the best! :)

Aron, just wow! 3mins memo and 4mins solve, that's insanely fast. Good luck to you too. :)
 
Not really sure which thread to post this in. I finally got round to practising multi for this weekend - better late than never! Missed 2 cubes so it's not really an accomplishment though.
17/19 52:31.29 [30:06]
Might just about be able to squeeze in another couple of cubes on the day. Tempting.
 
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