My cube does not get solved.

[Khashayar]

Hello everyone
i bought a revenge cube hours ago and i brought out an edge so 4 edges came out and i put them in again. But i am not sure that my cube will solve correctly. can u please tell me how to find out if it will make a problem or not

 

[souljahsu]

Just try to solve as much as possible, then take the unsolvable pieces out and put it in the right spot.

 

[Ethan Rosen]

Any combination of edges is solvable on a 4x4. You have likely run into one of the parity situations.
http://www.speedcubing.com/chris/4-step3.html
This should help you

 

[Ethan Rosen]

Just try to solve as much as possible, then take the unsolvable pieces out and put it in the right spot.

Please do not do this.

 

[jiggy]

If you are that unsure, you could just take the whole thing apart and put it back to together solved. Problem solved!

 

[Ethan Rosen]

If you are that unsure, you could just take the whole thing apart and put it back to together solved. Problem solved!

Once again, please do not do this.

 

[souljahsu]

Why? Are all the combinations solvable on a 4x4?

 

[FMC]

Why? Are all the combinations solvable on a 4x4?

since you can swap two edges on 4x4x4 with out effecting other pieces

 

[cmhardw]

Why? Are all the combinations solvable on a 4x4?

For the 4x4x4 cube: as long as the orientations of the corners are solvable, then the cube is solvable.

 

[Catalin]

Try http://www.bigcubes.com/

 

[Rpotts]

For the 4x4x4 cube: as long as the orientations of the corners are solvable, then the cube is solvable.

Right, but what could easily have happened is this: he takes one edge out, 3 more fall out, corners slide and possibly twist. Might not be solvable. But if you can solve a 3x3, just try to solve corners, and if you can, you know the whole cube is solvable.

 

[cmhardw]

Right, but what could easily have happened is this: he takes one edge out, 3 more fall out, corners slide and possibly twist. Might not be solvable. But if you can solve a 3x3, just try to solve corners, and if you can, you know the whole cube is solvable.

Yes agreed. However, the sliding of the corners would not matter though. Only the orientations of the corners determine solvability on a 4x4x4. You can disassemble and swap two corners (without twisting) and reassemble and the cube will still solve. That was the point I was trying to make. Your method is a very practical way to determine if your 4x4x4 needs to be disassembled.

 

[Tone]

This sounds to me like a very fun and unintentional challenge.. a puzzle within a puzzle! I definitely think you should try solving it as much as any unsolvable cases will permit before you switch pieces out. You'll also feel a lot more accomplished, I'm sure.

 

[Cyrus C.]

No need to even solve as a 3x3x3, just pretend the corners are a 2x2x2 and solve them.

 

[cmhardw]

Not to be "that guy" but you can also scan the corner orientations to see if they are able to be oriented as in "3OP" and not do any turns at all

 

[rjohnson_8ball]

The Rubik's Revenge is not hard to reassemble to a solved state. Just be careful not to break any center pieces. Other 4x4 cubes are very painful to reassemble.

As mentioned already, a 4x4 is still solvable if you see any number of edge pieces swapped or corner pieces swapped. I doubt you see just 1 corner twisted; I think it is too hard for a person to forcefully twist a corner piece in a Rubik's Revenge.