Blindsolving Accomplishment Thread

Hoooraaaay! Recently I did my very first 4x4 BLD attempt, and I succeeded!

Scramble:
Fw Rw2 Fw2 F D' B Rw2 D B' Rw' F L2 R2 Fw' R B' L' Rw2 D2 R2 Fw2 F2 Uw Fw D' Uw R2 F Uw' L2 Rw2 D' B L R2 Fw Uw2 Rw2 R' B2

Time:
~25 min (<20 min memorization)

Methods for elements (memorization technique):
U2 for centers (LetterPairs)
r2 for edges (Volapük*)
Boomerang* for corners (numbers + visual orientation)

I'm so glad... Next goal is sub20 (or close to 15 min), and of course a successful solving on the Hungarian Open!

~~~~~~~~~~~~~~~~

*You probably not know those things, one is actually unknown out of my country, and one is self-invented (which I'm sure is just re-inventing the wheel).
 
got another 3BLD success in the weekly competition. 4:13.52.
Slow, but...
I've had 6 successes this summer
1. 3:09.83
2. DNF(2:18.64)
3. DNF(3:55.52)
4. DNF(4:00.59)[2:16.00]
5. DNF(4:29.71)[2:59.48]
6. DNF(2:13.92)
7. (3:07.40)
8. 3:26.02
9. DNF(4:52.73)
10. DNF(4:03.38)
11. DNF(3:05.60)
12. DNF(4:46.65)
13. DNF(2:11.89)
14. DNF(4:05.69)
15. DNF(3:10.39)
16. DNF(5:09.61)
17. (DNF(3:35.23))
18. DNF(3:04.74)
19. (2:59.88)
20. DNF(3:28.50)
21. DNF(4:24.19)
22. 4:37.70
23. DNF(2:58.78)
24. DNF(3:12.75)
25. DNF(3:37.78)
26. DNF(4:26.84)
27. DNF(5:48.76)
28. DNF(4:58.65)
29. DNF(5:52.12)
30. DNF(3:22.08)
31. DNF(3:23.99)
32. 4:13.52
33. (DNF(3:20.33))
 
FINALLY!!! got the gist to M2, i could do R2 on the 4X4 but i hate the parity on the 3X3 because it changes the placing of the corners, whereas now i realised that i should have taught myself from the start because the videos on youtube i feel are a bit useless, first solve was 3:50 then 3:54 and some untimed ones. my PB is still 3:08 because my memo on old pochmann is better, but now looking at sub-3 (officially, have done a 2:58 out and about)
 
CHJ said:
FINALLY!!! got the gist to M2, i could do R2 on the 4X4 but i hate the parity on the 3X3 because it changes the placing of the corners, whereas now i realised that i should have taught myself from the start because the videos on youtube i feel are a bit useless, first solve was 3:50 then 3:54 and some untimed ones. my PB is still 3:08 because my memo on old pochmann is better, but now looking at sub-3 (officially, have done a 2:58 out and about)
Click to expand...

Congratulations on your deeper understanding :)

But how is memo for M2 different than for Old Pochmann? Both are 2-cycle methods, only difference is the starting piece being in a different location.
Also how does M2 parity change the corners? U' F2 U M2 U' F2 U fixes the M slice and swaps the UL and UB edges.
 
Cubenovice said:
Congratulations on your deeper understanding :)

But how is memo for M2 different than for Old Pochmann? Both are 2-cycle methods, only difference is the starting piece being in a different location.
Also how does M2 parity change the corners? U' F2 U M2 U' F2 U fixes the M slice and swaps the UL and UB edges.
Click to expand...

if i was to hit a parity, i would do a F2, y then T perm then undo the setups, i couldn't get to grips with this as i didn' understand how to do the parity and what would happen after since some people said use R perms and i couldn't see why, this is what confued me with where he corners would be placed. i kind of already knew how to do it in 4X4 r2 but there wasn't any changing of the corner positions in the parity so i overlooked it in a way.

as for memo, since the buffer has changed and how to shoot at places are different, i'm not exactly used to it an corners, if i was to hit parity in pochmann i would carry on and swap the LU corners and do a y' as this felt natural, now that i don't have to re-orient i'm gonna need to get used to it
 
CHJ said:
if i was to hit a parity, i would do a F2, y then T perm then undo the setups, i couldn't get to grips with this as i didn' understand how to do the parity and what would happen after since some people said use R perms and i couldn't see why, this is what confued me with where he corners would be placed. i kind of already knew how to do it in 4X4 r2 but there wasn't any changing of the corner positions in the parity so i overlooked it in a way.

as for memo, since the buffer has changed and how to shoot at places are different, i'm not exactly used to it an corners, if i was to hit parity in pochmann i would carry on and swap the LU corners and do a y' as this felt natural, now that i don't have to re-orient i'm gonna need to get used to it
Click to expand...

If you solve edges first you just have to do U' F2 U M2 U' F2 U after them if you have parity, and then solve corners normally.
If you solve corners first you have to do an alg that swaps UB and UL when you are done (J-perm, R-perm, Y-perm, etc) (if you're using OP) so that they will be in the place that you memo'd them as. After you solve edges you have to do U' F2 U M2 U' F2 U and then do the same alg that you did earlier to swap UB and UL. So that it places the corners back properly.
 
Ickathu said:
If you solve edges first you just have to do U' F2 U M2 U' F2 U after them if you have parity, and then solve corners normally.
If you solve corners first you have to do an alg that swaps UB and UL when you are done (J-perm, R-perm, Y-perm, etc) (if you're using OP) so that they will be in the place that you memo'd them as. After you solve edges you have to do U' F2 U M2 U' F2 U and then do the same alg that you did earlier to swap UB and UL. So that it places the corners back properly.
Click to expand...

In using M2/ Dld Pochmann U' F2 U M2 U' F2 U is all you need, regardless if you solve corners or edges first.

in case of parity:
corners first:
just solve all corners - this means UL and UB edges are swapped when you are done
do U' F2 U M2 U' F2 U: this swaps UL and UB edges into correct position but places the M slice an M2 off
Now solve edges normally, you have an un-even number of targets so the M slice is OK at the end

edges first:
just solve all edges - this means the M slice is an M2 off when you are done
do U' F2 U M2 U' F2 U: this solves the M slice and swaps UL and UB edges
Now solve corners normally, you have an un-even number of targets so the UL and UB are OK at the end
 
Cubenovice said:
In using M2/ Dld Pochmann U' F2 U M2 U' F2 U is all you need, regardless if you solve corners or edges first.

in case of parity:
corners first:
just solve all corners - this means UL and UB edges are swapped when you are done
do U' F2 U M2 U' F2 U: this swaps UL and UB edges into correct position but places the M slice an M2 off
Now solve edges normally, you have an un-even number of targets so the M slice is OK at the end
Click to expand...

No, no, no... *shakes head*
R2 D2 B2 R2 L' U2 D F' D' R' L' U2 D' F2 U B2 L' U2 L F' R2 B R F' L
^ That has parity.
Let's solve corners first...
Here's what we memorize:
Corners (UBL buffer): RDF -> DFL -> LUF -> LBD -> FUR
Edges (DF buffer): UL -> UB -> UF -> LF -> FR -> LB -> BD -> DR -> RB -> BU -> DL -> RU -> LD

Solve (with only U' F2 U M2... after corners):
RDF: F' Y-perm F
DFL: F2 Y-perm F2
LUF: F Y-perm F'
LBD: D2 F' Y-perm F D2
FUR: R Y-perm R'

(5 pieces, so UB and UL are swapped currently)

U' F2 U M2 U' F2 U (swap UB and UL so they are correct, but now the other M-slice pieces are off by an M2)
UL: L U' L' U M2 U' L U L'
UB: M2
UF: U2 M' U2 M'
LF: B L2 B' M2 B L2 B'
FR: U R U' M2 U R' U'
LB: L' B L B' M2 B L' B' L
BD: M2 F R U R' E R U' R' E' F'
DR: U R2 U' M2 U R2 U'
RB: R B' R' B M2 B' R B R'
BU: B' R B U R2 U' M2 U R2 U' B' R' B
DL: U' L2 U M2 U' L2 U
RU: B' R B M2 B' R' B
LD: B L B' M2 B L' B'

Result: M is off by an M2, 4 edges are wrong.

You changed the M slice at the beginning while fixing UB and UL, which, though putting them in their original positions, puts other pieces in different positions. You can't mess up the M-slice. The reason that you do a PLL that swaps 2 corners and 2 edges at the beginning and end is because that ONLY changes unsolved pieces that were not in the memo'd spot, if that makes sense. Since you aren't changing the corners anymore after they are done (except parity) you don't have to worry about putting them back until the end.
 
*Shakes head*

Ickathu said:
No, no, no... *shakes head*
R2 D2 B2 R2 L' U2 D F' D' R' L' U2 D' F2 U B2 L' U2 L F' R2 B R F' L
^ That has parity.
Let's solve corners first...

Here's what we memorize:
Corners (UBL buffer): RDF -> DFL -> LUF -> LBD -> FUR
Edges (DF buffer): UL -> UB -> UF -> LF -> FR -> LB -> BD -> DR -> RB -> BU -> DL -> RU -> LD

Solve (with only U' F2 U M2... after corners):
RDF: F' Y-perm F
DFL: F2 Y-perm F2
LUF: F Y-perm F'
LBD: D2 F' Y-perm F D2
FUR: R Y-perm R'

(5 pieces, so UB and UL are swapped currently)

U' F2 U M2 U' F2 U (swap UB and UL so they are correct, but now the other M-slice pieces are off by an M2)
UL: L U' L' U M2 U' L U L'
UB: M2
UF: U2 M' U2 M' Cubenovice suggests: M U2 M U2
LF: B L2 B' M2 B L2 B'
FR: U R U' M2 U R' U'
LB: L' B L B' M2 B L' B' L
BD: M2 F R U R' E R U' R' E' F' Cubenovice suggests D M’ U R2 U’ M U R2 U’ D’ M2
DR: U R2 U' M2 U R2 U'
RB: R B' R' B M2 B' R B R'
BU: B' R B U R2 U' M2 U R2 U' B' R' B
DL: U' L2 U M2 U' L2 U
RU: B' R B M2 B' R' B
LD: B L B' M2 B L' B'

Result: Cubenovice saved the solve :)

You changed the M slice at the beginning while fixing UB and UL, which, though putting them in their original positions, puts other pieces in different positions. You can't mess up the M-slice. The reason that you do a PLL that swaps 2 corners and 2 edges at the beginning and end is because that ONLY changes unsolved pieces that were not in the memo'd spot, if that makes sense. Since you aren't changing the corners anymore after they are done (except parity) you don't have to worry about putting them back until the end.
Click to expand...

In all fairness I should not have just said "solve edges normally"... You have to keep in mind that you're an M2 off for the M slice targets.
 
Cubenovice said:
In all fairness I should not have just said "solve edges normally"... You have to keep in mind that you're an M2 off for the M slice targets.
Click to expand...

Oh, well then yeah it'll work then :P But that's too complicated to keep track of (for me) when I'm trying to get good times. Plus, it's really not that hard to do an R perm.
What I'm actually gonna start doing is just not solve my last corner target. Then I solve edges, do U' F2 U M2 U' F2 U and then solve the corner normally. That does the same thing, and takes out 2 lefty R-Perms.
 
Cubenovice said:
In using M2/ Dld Pochmann U' F2 U M2 U' F2 U is all you need, regardless if you solve corners or edges first.

in case of parity:
corners first:
just solve all corners - this means UL and UB edges are swapped when you are done
do U' F2 U M2 U' F2 U: this swaps UL and UB edges into correct position but places the M slice an M2 off
Now solve edges normally, you have an un-even number of targets so the M slice is OK at the end

edges first:
just solve all edges - this means the M slice is an M2 off when you are done
do U' F2 U M2 U' F2 U: this solves the M slice and swaps UL and UB edges
Now solve corners normally, you have an un-even number of targets so the UL and UB are OK at the end
Click to expand...

:fp if i knew this i would have changed to corners first from the start, and there was me wondering why the elites do corners first and thinking it was a memory thing, i see i can stick with edges fist but it now looks so much easier to do corners first
 
Ickathu said:
Oh, well then yeah it'll work then :P But that's too complicated to keep track of (for me) when I'm trying to get good times. Plus, it's really not that hard to do an R perm.
What I'm actually gonna start doing is just not solve my last corner target. Then I solve edges, do U' F2 U M2 U' F2 U and then solve the corner normally. That does the same thing, and takes out 2 lefty R-Perms.
Click to expand...

CHJ said:
:fp if i knew this i would have changed to corners first from the start, and there was me wondering why the elites do corners first and thinking it was a memory thing, i see i can stick with edges fist but it now looks so much easier to do corners first
Click to expand...

Ain't BLD fun?

There are so many different ways to do stuff :)
 
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