Sudokube: Does it Have More Than One Solution?

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In summary, a Sudokube is a 4x4x4 "Rubik's"-cube labelled with 1 through 16 on the little squares and is considered "solved" if on each row and column there are 1 to 16 without repetition, and on each face as well. It is a hard problem and no algorithm is known to solve it without brute-force. While regular Rubik's cubes have only one solution, it is possible for a solved Sudokube to have more than one solution. The Wikipedia page only discusses 3x3x3 cubes, which have a different set of constraints than the 4x4x4 cubes.
  • #1
Dragonfall
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Let's say that a Sudokube is a 4x4x4 "Rubik's"-cube labelled with 1 through 16 on the little squares. A Sudokube is "solved" if on each row and column there are 1 to 16 without repetition, and on each face as well.

Does there exist a solvable Sudokube with more than 1 solution?
 
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  • #2


Dragonfall said:
Let's say that a Sudokube is a 4x4x4 "Rubik's"-cube labelled with 1 through 16 on the little squares. A Sudokube is "solved" if on each row and column there are 1 to 16 without repetition, and on each face as well.

Does there exist a solvable Sudokube with more than 1 solution?
If this is a teaser, shouldn't it be in the teaser forum?
 
  • #3


I hate sudokubes. They can such a pain to figure out. Regular Rubik's cubes are so much easier. I don't really know how many solved solutions there would on a sudokube. For any regular Rubik's cube though they only have one solution. Well there's my 2 cents...
 
  • #4


No it's not a teaser, it's a hard problem. I don't have the answer. I don't think anyone does. (No algorithm which is less than brute-force is known)
 
  • #5


Look at the Wikipedia page for http://en.wikipedia.org/wiki/Sudokube" . It says that these type of cubes might have more than one solution. How many though, it doesn't say.
 
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  • #6


The wiki page describes 3x3x3 cubes. The 4x4x4 cubes with the additional constraint that all rows and columns contain the first 16 numbers is different.
 

FAQ: Sudokube: Does it Have More Than One Solution?

What is Sudokube?

Sudokube is a puzzle game that combines elements of Sudoku and Rubik's Cube. It consists of a cube with 6 faces, with each face divided into 9 smaller squares. The objective of the game is to arrange the numbers 1-9 on each face of the cube without repeating any numbers in each row, column, or 3x3 square.

How is Sudokube different from traditional Sudoku?

Sudokube adds an extra dimension to the traditional Sudoku game by incorporating the concept of a Rubik's Cube. Players must not only solve the puzzle on each face, but also ensure that the numbers are correctly arranged on all 6 faces of the cube.

Does Sudokube have more than one solution?

Yes, Sudokube can have multiple solutions. This is because the combination of numbers on each face can be arranged in different ways while still following the rules of Sudoku. However, a well-designed Sudokube puzzle should have only one unique solution.

What makes it difficult to determine if Sudokube has more than one solution?

The complexity of a Sudokube puzzle lies in its multiple dimensions and the interdependence of each face. This makes it challenging to determine if there are multiple solutions without actually solving the puzzle or using complex mathematical algorithms.

How can you ensure that a Sudokube puzzle has only one solution?

To ensure that a Sudokube puzzle has only one solution, it is important to carefully design the initial arrangement of numbers on each face. This requires a thorough understanding of the rules of Sudoku and the ability to strategically place numbers in a way that eliminates the possibility of multiple solutions.

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