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Results tagged with sudoku
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user 80061
A Sudoku is a puzzle consisting of a grid to be filled with symbols, such that each constraining unit contains each symbol exactly once. The typical example is a 9x9 square to be filled with the numbers 1 to 9, where the constraining units are rows, columns, and 3x3 blocks.
6
votes
1
answer
171
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Determine the minimum number of numeric clues to make these mini-Sudoku puzzles have a uniqu...
Below are three grid layouts for mini-Sudoku puzzles. …
- 21.4k
7
votes
1
answer
586
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Fill this Sudoku variant so that the sums of numbers in the outlined regions are all different
Place numbers in the grid so that each row and each column contain all the numbers {1,2,3,4,5} (each exactly once) and the sums of numbers in the outlined regions are all different.
Attribution: mom …
- 21.4k
31
votes
1
answer
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Are you radical enough to solve this SURDOKU?
(It's a sudoku.)
Attribution: PUZZLEBOMB.co.uk. Puzzles by @stecks & @apaultaylor. …
- 21.4k
7
votes
2
answers
381
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Product = Sum Sudoku (Royal Statistical Society Christmas Quiz 2023)
Normal Sudoku rules for this grid size apply. The product of the numbers on each pink diagonal equals the sum of the numbers in the blue square. …
- 21.4k
6
votes
2
answers
2k
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Can you embed a 4x4 Sudoku inside a 16x16 Sudoku?
In an earlier question (Can a standard Sudoku puzzle contain a miniature Sudoku puzzle?), I asked whether a miniature 4x4 Sudoku could be embedded in a standard 9x9 Sudoku. … Inspired by the following comment on that question by quarague:
Looking at this I would guess that it is possible to put a 4x4-sudoku inside a giant 16x16 sudoku. …
- 21.4k
17
votes
2
answers
3k
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Can a standard Sudoku puzzle contain a miniature Sudoku puzzle?
The following is an example of "Miniature 4x4 Sudoku puzzle" in which the goal is to fill each empty square with a number (1, 2, 3 or 4) so that there are no duplicated numbers in any row, column or 2x2 … property that some 4x4 submatrix of the solution (taken from four consecutive rows and four consecutive columns) is equal to the 4x4 solution matrix of some "Miniature 4x4 Sudoku puzzle"? …
- 21.4k
6
votes
1
answer
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My Pentadoku puzzles (Jigsaw Sudoku)
In each of the following puzzles, fill the empty squares with numbers so that every row, column and irregularly shaped region contains the numbers 1, 2, 3, 4 and 5 exactly once.
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