Help with OP BLD

The first couple minutes of this video do a great job showing the concept of a buffer and how to apply it to a cube:


Also, this is in my opinion the best 3BLD tutorial. J Perms new one is shorter, but in my opinion this one does a better job for those actually interested in learning
ive tryed this one,i understand up until the concept is applied to the cube

Jack Cai also has a good tutorial that breaks it up into corners only and then edges and full solves. It helped me to learn a lot and in my opinion it is really easy to understand and learn from it.


ill try these ty
 
In OP(or any 2-Cycle blind method, but let's stick to OP) you have two piece placements that are important. Your buffer and your cycle piece.
Your buffer is UBL while the cycle piece is RFD(with the spots correctly, BOP indeed would be better but you can still change after a few successes, when you have a grasp of the concept). When you do your cycling algorithm(most likely modified Y-Perm), apart from Cycling UL and UB, you cycle those two pieces/spots.

So when we look at a given scramble(assuming an easy case for ease of explaination), the piece located at UBL will not be the correct piece in it's correct position[Alg.cubing.net link] but instead will be e.g. the spot belonging at BDR.
So we do a D' move, to set up the cube so that when we do the Cycling algorithm, the piece previously in UBL is now at RFD and vice versa. Undoing the setup, D, the corner at BDR is now solved and what previously took it's place now resides at UBL, ready for the next cycle.
Stopping for time reasons. Give notice if you want more explaination.
 
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