Finding an Efficient First Block in Inspection

A comprehensive look at the most common strategies for solving the first block of the Roux method.
Flowchart: imgur.com/a/TXtYa
Scrambles: pastebin.com/Tn...
Data for estimating P(no free pairs): pastebin.com/5p...
00:00 Introduction and Terminology
00:40 The Problem (and proposed solution)
Square + pair approaches (CFOP-y)
01:31 F2L-style (Examples at 1:50, 2:40, 3:16; Summary at 3:49)
04:35 F2L-pair first (Examples at 4:56, 5:37, 6:07; Summary at 6:41)
Square + pair approaches (Line-based)
07:18 Intro
08:24 Line-block first (Examples at 8:50, 9:21, 9:57; Summary at 11:26)
11:46 E-Line first (Examples at 12:10, 13:00, 13:41; Summary at 14:48)
Line + line approaches
15:30 Intro
Line-block first (Examples at 16:24, 17:31, 18:09)
E-line first (Examples at 19:00, 20:30, 21:12)
22:41 Summary
23:26 Practical application of the strategies above
24:59 Addendum about reliability of the method above
26:07 Closing

[@alexf0101]

Wow, very useful and thorough, thanks!
(gotta do something about the focus issues, though)

[@Qwan707]

Yeah, still getting all this video-making stuff figured out. Thanks!

[@tannereshleman2503]

Thanks so much. Many other tutorials didn’t explain much block building but this one was very descriptive and easy to follow.🙂👍

[@Ryan-ei9nt]

by far the best roux tutorials on youtube!! Thanks a lot!

[@BasicUnderscore]

been looking block building video like this. very nice

[@bernhardbrodowsky3261]

Small bonus: If you have a 3x1 line block in inspection, you can actually recognize your CMLL permutation in inspection. 😂

[@badochov]

How

[@YashBudhiraja]

It's a joke lmao

[@BitterCurrant]

He's only half-joking, because you actually can recognize your CMLL case after setting up two more corners (the 2B-F and 2B-B corners; not even the edges) then the last 4 corners of the last layer are setup for your preferred CMLL algorithms for solution.

[@bernhardbrodowsky3261]

Yes exactly. I mean, it's pretty hard and rarely possible, but it's not unthinkable if you have a 3x1 bar given. The realization that you only need to track two corners makes it possible.

[@shkcubing2482]

2 years later, a whole new method was developed based on this approach

[@aaronmarquez5596]

Extremely late but 10:24 has a really easy solution and is not awkward at all. (U D') R D basically 3 moves because the U and D can be done at the same time

[@flamepelt3629]

also late but the line block is easy for that scrmable its z2 y B U' F' R D

[@siatsu3631]

The FB vid that I was looking for. Really awesome video man!

[@MonkOrMan]

10:12 I had to watch that like 30 times 🤯

[@markusniederost2349]

Very well explained. Thanks a lot.

[@reymaraquino6811]

thank you for this awesome video.

[@abhijeetghodgaonkar]

great work

[@pompon8071]

I know it’s old but at 2:11 someone was crying out for their life 🤣

[@wowo29]

great video

[@animegod5046]

Great vedio...... Thnx

[@stanleydesu]

18:28
R u' U2 r u'
or
r' R' u' R' u2
instead of
U r E' r' U' R u2

[@louisrialland2527]

First solution doesnt seem to work. Second solution is nice though (U2 instead of u2 for the second solution still)

[@stanleydesu]

@@louisrialland2527 Fixed, thanks :)

[@louisrialland2527]

@@stanleydesu no worries :)

[@imFaelz]

Thanks!

[@looperover]

10:19 r B U' R' u?

[@user-lr6tk3te1h]

自分用
6:34

[@5Algsolve]

Nice yo

[@ZTEblade-ei2tq]

Hello 2024 new roux user here

[@hamzaabbaszaidi8788]

What is a disjointed pair?

[@hamzaabbaszaidi8788]

wait nevermind i skipped the beginning of the video