# 1LLS

 1LLS (2x2x2) method Information about the method Proposer(s): Will Callan Proposed: 2017 Alt Names: LS Variants: No. Steps: 2 No. Algs: 486 Avg Moves: Purpose(s): Speedsolving

1LLS, or 1 Look Last Slot. The first thorough attempt at developing and categorizing this method uses the name LS for shorthand, and as a distinction from methods on other puzzles. This has become the standard term for 1LLS on 2x2. This method has 486 algs in total. LS divides these into 9 sub-methods of 54 algs each, labeled LS1 - LS9. These sub methods are divided based on the orientation misplaced bottom layer corner, and the orientation of the corner in the empty slot. A further explanation on this categorization and recognition can be found here. Development on LS occurred gradually from 2017-2023 and is growing in use among top 2x2 solvers

## Steps

1. Solve a V (3/4 of a layer)
2. Solve the rest

## Pros

Using LS decreases your average movecount, as it's first step, the V, requires fewer moves on average to make. It's quite common to have pre-made Vs on scrambles, approximately 3-5% of scrambles. In such situations without LS, there may be 10+ solutions to search through using CLL, TCLL, and EG methods. Instead, LS provides a short solution you can proceed with, confident you have the best one

## Cons

• Large algorithm count
• Approximately 4 times more algorithms than CLL, EG-1 or EG-2
• Sub-methods make this less of an issue
• Case recognition and one-looking can be more difficult and take more time