Hint for speed: Try to plan out the whole of this step in the inspection phase and to execute the moves without looking.

Create a 3x2x1 block on the Left slice. Following the example from Roux, I've been using Red on the Down face and Yellow on the Left. So this means solving the block consisting of the Yellow centre, the Yellow/Red edge, the Yellow/Blue edge, the Yellow/Green edge, the Yellow/Red/Green corner and the Yellow/Red/Blue corner. (Diagram looking at the L-face)

Create the corresponding 3x2x1 block, opposite the first, on the Right slice (W centre, W/R, W/B, W/G edges, W/R/G and W/R/B corners). This should be done without disturbing the block built in step 1, using only R, r, M and U moves. (Diagram looking at the R-face)

Step 3: Corners Last Layer (CMLL)

This step is known as CMLL because (a) other methods have similar corner methods with other CxLL abbreviations and (b) we are free to disturb the M-slice.

Initially I found Roux's corners page quite confusing and it put me off his method for some time. But I'll use his system for classifying the CMLL algs, because (almost) everyone else does.

There are 8 orientations (A-H) with up to 6 permutations within each. Each permutation involves swapping a pair of corners (other than 1 which is no swap). The 6 permutations are:

No swap Swap back Swap right Swap front Swap left Swap diagonal

Aside: Two-look CMLL Waffle-Jim (who has built a great guide to the Roux method) recommends learning two-look CMLL at first. Learn (initially) one alg for each orientation possibility, and then use one of the two "A"-cases to permute if necessary. So that's what I have done. I've highlighted the CMLL algs I've learned for two-look in green and other algs in yellow. NB These are just the algs I use. Other Roux users use other algs. If you're trying to learn, I recommend checking out as many algs as you can, and using the ones that feel best to you.