Reed Merrill
Regular
Hey everyone,
tldr: here's my Sudoku cube solution, share yours if you're interested in comparing!
So I got a Sudoku cube a little while ago, and over the past couple days have figured out how to solve it. It was actually surprisingly easy, and took zero Sudoku expertise (which I have never done, but I know the rules). I thought it would be cool to share my solution and see if anyone else had a different way of figuring it out.
I should also say that on my particular cube the R, B, L, and F faces all have the numbers oriented in the same way when it is solves, with U numbers being right side up when viewed from F, and the D numbers also right-side-up after an x'. I solved it back to the way it came, which was with all the numbers correctly oriented (for me, oriented=right side, from what I described above)
I'm curious to see what people think of my solution, and what yours is if you've solved a Sudoku cube.
tldr: here's my Sudoku cube solution, share yours if you're interested in comparing!
So I got a Sudoku cube a little while ago, and over the past couple days have figured out how to solve it. It was actually surprisingly easy, and took zero Sudoku expertise (which I have never done, but I know the rules). I thought it would be cool to share my solution and see if anyone else had a different way of figuring it out.
I should also say that on my particular cube the R, B, L, and F faces all have the numbers oriented in the same way when it is solves, with U numbers being right side up when viewed from F, and the D numbers also right-side-up after an x'. I solved it back to the way it came, which was with all the numbers correctly oriented (for me, oriented=right side, from what I described above)
1. To start with I solved it corners first, because I knew that the the solved state with all the numbers oriented would only give one valid corners permutation (just like on a normal six colour 3x3).
2. permuted the centers. By this point it was clear which centres would go on U and D. Then I just put the others in a way that they didn't break the 'rules' of Sudoku.
3. Then I 'solved' F2L by making pairs while only paying attention to orientation and ensuring that the two stickers on each side of the block didn't have the same number. It is easy to see which edges go in the equator because the numbers on their stickers have the same orientation.
4. Then I used M' U2 M U2 to insert the cross edges if they were already oriented, or M' (U/U') M to orient and insert them at the same time. For this step each type of number orientation for the edges only has two valid spots it could be solved to, so I just ensured that after solving them they were oriented in relation to the corners next to them.
4. Then I solved the LL using 4LLL.
5. Solved the 8 U/D edges using M' U2 M U2 to preserve everything else. Here, since they were each in a valid position for orientation, I just had to check the numbers to make sure that no side had two of the same number.
6. Then, after doing a z' I permuted the equator edges using M' U2 M U2. this was done just based upon avoiding having the same number twice in the same face.
7. Now the only thing left is centre orientation, which I did with F' U M' U' M F, it's inverse, and (R U R' U)5.
This was one the first difficult puzzles I have solved, so I ended up looking up most of the commutators that I used.
And somewhere in there I also ended up swapping the U and D centers so that the faces wouldn't have repeating numbers.
2. permuted the centers. By this point it was clear which centres would go on U and D. Then I just put the others in a way that they didn't break the 'rules' of Sudoku.
3. Then I 'solved' F2L by making pairs while only paying attention to orientation and ensuring that the two stickers on each side of the block didn't have the same number. It is easy to see which edges go in the equator because the numbers on their stickers have the same orientation.
4. Then I used M' U2 M U2 to insert the cross edges if they were already oriented, or M' (U/U') M to orient and insert them at the same time. For this step each type of number orientation for the edges only has two valid spots it could be solved to, so I just ensured that after solving them they were oriented in relation to the corners next to them.
4. Then I solved the LL using 4LLL.
5. Solved the 8 U/D edges using M' U2 M U2 to preserve everything else. Here, since they were each in a valid position for orientation, I just had to check the numbers to make sure that no side had two of the same number.
6. Then, after doing a z' I permuted the equator edges using M' U2 M U2. this was done just based upon avoiding having the same number twice in the same face.
7. Now the only thing left is centre orientation, which I did with F' U M' U' M F, it's inverse, and (R U R' U)5.
This was one the first difficult puzzles I have solved, so I ended up looking up most of the commutators that I used.
And somewhere in there I also ended up swapping the U and D centers so that the faces wouldn't have repeating numbers.
I'm curious to see what people think of my solution, and what yours is if you've solved a Sudoku cube.
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