Difference between revisions of "Sudoku-DG"
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'''Sudoku-DG''' (also known as '''Offset Sudoku''') is | '''Sudoku-DG''' (also known as '''Offset Sudoku''') is a [[Sudoku Variant]] with additional [[constraint]]s. '''DG''' refers to the 9 '''disjoint groups''' in the puzzle, one for each relative [[box]] position. | ||
Here is an example: | Here is an example: | ||
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== Minimum Number of Givens == | == Minimum Number of Givens == | ||
It is possible to have a [[valid]] Sudoku-DG with only 12 [[given]]s, however it is unknown whether this is the minimum number. Examples of such puzzles can be found in [http://www.sudoku.com/forums/viewtopic.php?t=3284&start=7 this forum post]. | It is possible to have a [[valid]] Sudoku-DG with only 12 [[given]]s, however it is unknown whether this is the minimum number. Examples of such puzzles can be found in [http://www.sudoku.com/forums/viewtopic.php?t=3284&start=7 this forum post]. | ||
[[Category:Sudoku Variants]] | |||
Latest revision as of 12:04, 30 October 2021
Sudoku-DG (also known as Offset Sudoku) is a Sudoku Variant with additional constraints. DG refers to the 9 disjoint groups in the puzzle, one for each relative box position.
Here is an example:
The 9 disjoint groups each have a distinct color. Each group of 9 cells with the same color must also contain digits 1 through 9.
The additional groups can be used in the following standard solving techniques:
- Hidden Single
- Locked Candidates
- Naked Subset
- Hidden Subset
- Coloring
- Chains and Loops
- Almost Locked Set
The extra groups will also allow you to search for additional fish patterns. However, no research has been done yet into possible fish patterns for Sudoku-DG.
Minimum Number of Givens
It is possible to have a valid Sudoku-DG with only 12 givens, however it is unknown whether this is the minimum number. Examples of such puzzles can be found in this forum post.
