Highly doubt that since he himself said that even teaching cross is diffcult. What you can do is while practicing solves , you can comment on the scrambles that have a hard cross. You can then rescramble the cube and see the no. of ways you can come up to solve efficient cross.I really hope J perm adds a cross and F2l trainer to his website. It will help many cubers such as myself to improve
Yes: if you would solve a pair in the top layer (especially when they are ready to be inserted) and you know for sure you're going to rotate afterwards, d moves provide both sight and speed.Can you provide examples?
Not bad, but a rotation here isn't the worst thing in the world imo.
Cool!Hey guys, felt like sharing an algorithm I learned today. It's not really listed anywhere, it's just a combination of moves, but the latter part is something everyone should know.
You basically bring the edge from the back left out (without unsolving anything) and then do r U' R' U R U r'.
Rotationless and fast.
It's best to rotate and insert than to regrip and use awkward B moves.For the case above I want my alg to be B’RUR’B
Apologies—I was posting to the “Puzzle Theory” forum because it’s a question I’ll wrestle with even if I stop using cross-solved scrambles. I’d just like to understand how this is possible, whether or not it’s useful. Sorry I wasn’t more clear about that.That doesn't make sense to me either, but I would recommend that you don't skip doing cross, you can skip OLL and PLL for F2L practice, but one of the hardest parts of F2L is the Cross to F2L transition. If you aren't solving the cross before F2L you are not getting the practice you need to have a good cross to F2L transition.
Hmm... I use a couple smart cubes that catch me if I make a scrambling error—and I almost never do. When I first started noticing this, I stopped, solved a cube completely and re-tried the scramble—cross solved—then solved F2L and retried the scramble—no cross solved. Then solved the cube and did it again, with the exact same scramble after F2L not giving me a cross again. And then a third time. So I’d convinced myself that human (my) error couldn’t be the issue.It should not be possible. Odds are that you are simply misapplying the scramble when doing it with the F2L-only solved cube.
If you have an example where this actually happens, please post it here - if your example genuinely and repeatably gives a solved cross with a solved cube, but an unsolved cross with just F2L solved, it would definitively prove me wrong.
Could you send a scramble where this happens?Hmm... I use a couple smart cubes that catch me if I make a scrambling error—and I almost never do. When I first started noticing this, I stopped, solved a cube completely and re-tried the scramble—cross solved—then solved F2L and retried the scramble—no cross solved. Then solved the cube and did it again, with the exact same scramble after F2L not giving me a cross again. And then a third time. So I’d convinced myself that human (my) error couldn’t be the issue.
But now I’m wondering if perhaps my error is this: the smart cubes all want you to start a scramble white-side-up. ChaoTimer, OTOH, wants you to start yellow-side-up—which I do, otherwise the cross wouldn’t appear on the white face as I’m used to. But perhaps I’ve been consistently forgetting to reorient “upside-down” when trying to rescramble an F2L solve? (Or rather, consistently reorienting for a solved cube, but every now and again forgetting with an F2L solve—then consistently doing it wrong when I’ve been trying to focus on this issue?)
It had been happening only about 1 out of 10 scrambles, so let me try a bunch with this new hypothesis in hand (so, making sure yellow’s up even when F2L is solved) and see if that was the issue all along.... I hope so, it was truly unsettling to think somehow the top layer could matter in generating a solved cross.
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