The love for dot OLL's you can see all the stickers on the U layer. The easy part are the corners can be recognised the same as COLL. So yo can filter the PLL to the sections: HUZ, ENVY or G(i)FTJAR.
The HUZ section are the easy ones. When you know what the algorithm does to the edges you can visualize which pll you will get. If not you can learn the patterns
For examble:
OLL 2
F (R U R' U') F' f (R U R' U') f'
Here you can see what this algorithm is doing to the edges:
The corners do not change position
The Edges change like a "Z PLL"
The Full list of all the PLL's.
When taking a closer look some are mirrors from each other.
All image are generated with VisualCube
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