mukerflap
Veteran
- Joined
- Jan 12, 2020
- Messages
- 263
this is literally briggs2 but with non matching centers for some reason
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Did you mean intuitively?This can be done by solving 4 of them into a face then doing an OLL(probably could be done algorithmically also)
Did you mean intuitively?
Probably worded that wrong, I meant it could probably be done algorithmically in one step instead of make one face then OLL
CO can be done intuitively in less than 4 moves on average (3.7). Doing any intermediary steps like making a face and then OLL on the other side is a huge, like HUGE, waste of moves, time, and effort.
If you're wondering how to go about doing this, I'm happy to explain.
Thank you so much. Bookmarked. I have been trying to do this for a while now. Another thing that the masterful Neptunian could explain is CP.First off, grab a 2x2 cube. (Do NOT use a 3x3 right now, it will be harder)
Then, apply the sequence R2 U F2 U' F2 R2. (Or you could do any other sequence that also preserves CO)
Now, do R U R'. You will notice that you have 3 corners that are not oriented. You can use moves that preserve CO to set your 3 'bad' corners up to this case.
For example, solve your 2x2 cube and apply R' U' R U' R' U2 R. This is an antisune, but you can definitely orient the corners in less than 7. Notice that you can do R2 U' to set up the 3 corner / R U' R' case, and then simply do the R U' R' trigger. So, your CO solution would be R2 U' R U' R' (5).
Are you still following me?
Haha I hope so.
If you have 3 misoriented corners, you can also use the trigger R U R'. So R U R' / R U' R' both work to setup 3 bad, but also they are literally just different by an R2 move so not very different. Again, use the moveset that preserves CO (R2, U, F2) to set these up.
Now, there is also the R U2 R' trigger for 4 corners and the single move trigger R, also for 4 corners.
Yes, you can orient 4 corners in 1 move. I won't get into as much detail for these because you know the drill by now. Set up and trigger.
Try these setup exercises for 4 bad corners:
Apply R2 U' F2 U2 R U2 R' U2 L2 U2. Solve CO on white/yellow in only 4 moves by setting up to and using the R U2 R' trigger.
Apply F2 U R2 U' F2 R' U2 F2 U' R2. Solve CO on white/yellow in only 3 moves by setting up to using the single move R trigger.
Now, here are some random 2x2 scrambles and efficient CO examples.
R' F U' F U R F' U2 F ----- y' U2 R2 U R // CO (4)
U' F2 U2 F2 R F' R2 F' R ----- z x R2 U2 R // CO (3)
F' R' U2 F' U F R U2 F ----- y z R U' R' // CO (3)
U F' R2 U' R U R' F' R2 ----- y F R U' R' // CO (4)
Very useful tip: If it isn't easy to set things up, just look at a different axis / colors and most likely it will be a much easier case.
If you have any questions then feel free to ask!
It’s just like domino reduction for corners only, because it is!First off, grab a 2x2 cube. (Do NOT use a 3x3 right now, it will be harder)
Then, apply the sequence R2 U F2 U' F2 R2. (Or you could do any other sequence that also preserves CO)
Now, do R U R'. You will notice that you have 3 corners that are not oriented. You can use moves that preserve CO to set your 3 'bad' corners up to this case.
For example, solve your 2x2 cube and apply R' U' R U' R' U2 R. This is an antisune, but you can definitely orient the corners in less than 7. Notice that you can do R2 U' to set up the 3 corner / R U' R' case, and then simply do the R U' R' trigger. So, your CO solution would be R2 U' R U' R' (5).
Are you still following me?
Haha I hope so.
If you have 3 misoriented corners, you can also use the trigger R U R'. So R U R' / R U' R' both work to setup 3 bad, but also they are literally just different by an R2 move so not very different. Again, use the moveset that preserves CO (R2, U, F2) to set these up.
Now, there is also the R U2 R' trigger for 4 corners and the single move trigger R, also for 4 corners.
Yes, you can orient 4 corners in 1 move. I won't get into as much detail for these because you know the drill by now. Set up and trigger.
Try these setup exercises for 4 bad corners:
Apply R2 U' F2 U2 R U2 R' U2 L2 U2. Solve CO on white/yellow in only 4 moves by setting up to and using the R U2 R' trigger.
Apply F2 U R2 U' F2 R' U2 F2 U' R2. Solve CO on white/yellow in only 3 moves by setting up to using the single move R trigger.
Now, here are some random 2x2 scrambles and efficient CO examples.
R' F U' F U R F' U2 F ----- y' U2 R2 U R // CO (4)
U' F2 U2 F2 R F' R2 F' R ----- z x R2 U2 R // CO (3)
F' R' U2 F' U F R U2 F ----- y z R U' R' // CO (3)
U F' R2 U' R U R' F' R2 ----- y F R U' R' // CO (4)
Very useful tip: If it isn't easy to set things up, just look at a different axis / colors and most likely it will be a much easier case.
If you have any questions then feel free to ask!
First off, grab a 2x2 cube. (Do NOT use a 3x3 right now, it will be harder)
Then, apply the sequence R2 U F2 U' F2 R2. (Or you could do any other sequence that also preserves CO)
Now, do R U R'. You will notice that you have 3 corners that are not oriented. You can use moves that preserve CO to set your 3 'bad' corners up to this case.
For example, solve your 2x2 cube and apply R' U' R U' R' U2 R. This is an antisune, but you can definitely orient the corners in less than 7. Notice that you can do R2 U' to set up the 3 corner / R U' R' case, and then simply do the R U' R' trigger. So, your CO solution would be R2 U' R U' R' (5).
Are you still following me?
Haha I hope so.
If you have 3 misoriented corners, you can also use the trigger R U R'. So R U R' / R U' R' both work to setup 3 bad, but also they are literally just different by an R2 move so not very different. Again, use the moveset that preserves CO (R2, U, F2) to set these up.
Now, there is also the R U2 R' trigger for 4 corners and the single move trigger R, also for 4 corners.
Yes, you can orient 4 corners in 1 move. I won't get into as much detail for these because you know the drill by now. Set up and trigger.
Try these setup exercises for 4 bad corners:
Apply R2 U' F2 U2 R U2 R' U2 L2 U2. Solve CO on white/yellow in only 4 moves by setting up to and using the R U2 R' trigger.
Apply F2 U R2 U' F2 R' U2 F2 U' R2. Solve CO on white/yellow in only 3 moves by setting up to using the single move R trigger.
Now, here are some random 2x2 scrambles and efficient CO examples.
R' F U' F U R F' U2 F ----- y' U2 R2 U R // CO (4)
U' F2 U2 F2 R F' R2 F' R ----- z x R2 U2 R // CO (3)
F' R' U2 F' U F R U2 F ----- y z R U' R' // CO (3)
U F' R2 U' R U R' F' R2 ----- y F R U' R' // CO (4)
Very useful tip: If it isn't easy to set things up, just look at a different axis / colors and most likely it will be a much easier case.
If you have any questions then feel free to ask!
Wait that doesn't solve CO...R2 U' R U' R' (5)
This is probably the natural thought progression then. Nonetheless I just had a look at B2 and it’s quite different.this is literally briggs2 but with non matching centers for some reason
Not the point, but it does make a difference if its 8 edges or 9. While there can be a maximum of 8 misoriented edges, we will need to check the orientation of at least 8 edges in YruRU to determine the EO case. If there were actually only 8 edges, the task would simplify as we could look at 7 edges and be sure. This difference of checking 1 edge is much larger than it looks.Actually, it would only be 8, as at least one edge will always be pre-oriented, making it compareable to Petrus EO. Petrus EO, contrary to popular belief, isn't that hard or time consuming. You only need to find two flipped edges and then you can recognize the next two while fixing the first two, and keep repeating this.
You don't need to check it because you can deduce what it is from the other edges. (Odd number of flipped edges = 9th edge is flipped, Even number = Not flipped)Not the point, but it does make a difference if its 8 edges or 9. While there can be a maximum of 8 misoriented edges, we will need to check the orientation of at least 8 edges in YruRU to determine the EO case. If there were actually only 8 edges, the task would simplify as we could look at 7 edges and be sure. This difference of checking 1 edge is much larger than it looks.
Still not complete legal, but if you are sneaky and with dishonest intentions then most judges won’t notice anything besides a few weird corner twistsYou can make it even better: If you get a bad F2L case then you can flip then. Also when I did this my flip in F2L solved a pair and the flip at OLL gave me a CLL skip and a super easy ELL XD
That has nothing to do with it. That says you can't make your puzzle intentionally worse just so you get extra solves."Any modifications to a puzzle that result in poor performance by a competitor are not grounds for additional attempts."
First off, grab a 2x2 cube. (Do NOT use a 3x3 right now, it will be harder)
Then, apply the sequence R2 U F2 U' F2 R2. (Or you could do any other sequence that also preserves CO)
Now, do R U R'. You will notice that you have 3 corners that are not oriented. You can use moves that preserve CO to set your 3 'bad' corners up to this case.
For example, solve your 2x2 cube and apply R' U' R U' R' U2 R. This is an antisune, but you can definitely orient the corners in less than 7. Notice that you can do R2 U' to set up the 3 corner / R U' R' case, and then simply do the R U' R' trigger. So, your CO solution would be R2 U' R U' R' (5).
Are you still following me?
Haha I hope so.
If you have 3 misoriented corners, you can also use the trigger R U R'. So R U R' / R U' R' both work to setup 3 bad, but also they are literally just different by an R2 move so not very different. Again, use the moveset that preserves CO (R2, U, F2) to set these up.
Now, there is also the R U2 R' trigger for 4 corners and the single move trigger R, also for 4 corners.
Yes, you can orient 4 corners in 1 move. I won't get into as much detail for these because you know the drill by now. Set up and trigger.
Try these setup exercises for 4 bad corners:
Apply R2 U' F2 U2 R U2 R' U2 L2 U2. Solve CO on white/yellow in only 4 moves by setting up to and using the R U2 R' trigger.
Apply F2 U R2 U' F2 R' U2 F2 U' R2. Solve CO on white/yellow in only 3 moves by setting up to using the single move R trigger.
Now, here are some random 2x2 scrambles and efficient CO examples.
R' F U' F U R F' U2 F ----- y' U2 R2 U R // CO (4)
U' F2 U2 F2 R F' R2 F' R ----- z x R2 U2 R // CO (3)
F' R' U2 F' U F R U2 F ----- y z R U' R' // CO (3)
U F' R2 U' R U R' F' R2 ----- y F R U' R' // CO (4)
Very useful tip: If it isn't easy to set things up, just look at a different axis / colors and most likely it will be a much easier case.
If you have any questions then feel free to ask!