Questions tagged [grid-deduction]
Puzzles such as Sudoku or Kakuro, where the final state of a pre-existing grid must be deduced logically through clues placed within and/or around the grid. Use with the [logical-deduction] tag. For puzzles where you are given a list of clues which can be used to compose a grid to solve them logically, use the [logic-grid] tag instead.
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Historical figure sudoku
This sudoku hides a famous person from the past.
A solution will be accepted if the sudoku is solved (with steps to solve).
The letters used are: abceloprt (in alphabetical order).
PS. ...
- 7,856
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Good resource for daily Sudoku Puzzles [closed]
I love solving puzzles, It keeps my brain active. Previously I used to solve newspaper "Sudoku" which were fairly easy. Then I solved some interesting puzzles in the book below.
Mastering ...
user16080
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Sudoku-net pseudo-solvable with minimum blocks
A sudoku net is defined here.
A sudoku net is defined as 'pseudo-solvable' if we can deduce at least two valid 'not unique' solutions.
friendly sudoku is defined here
What is the sudoku net with ...
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fill this grid with water!
In this puzzle you have to fill with water some cells of the grid. The number of filled squares in each row and column is written next to it.
You can't fill a square if the squares connected to it (...
- 533
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Write digits 1 to 9 in the table, each pointing to next 3x3 grid
Write the digits from 1 to 9 in an empty Sudoku table with these rules (similar to 9-Queen problem):
There are 9 boxes indexed from 1 to 9 in the image below. Each box has a 3x3 grid child.
Every two ...
- 5,856
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Are there any sudoku puzzles combined with magic squares? [duplicate]
As everyone knows, in Sudoku the sum of each row and column is 45. So all Sudoku solutions are some kind of magic square. My question is:
Has anyone seen a Sudoku puzzle combined with the magic square ...
- 5,856
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What is the fewest number of clues on a rotationally symmetrical sudoku grid with a unique solution?
It is known that the minimum number of clues a sudoku must have to have a unique solution is 17. But on every website I've seen for them, I haven't found any that are rotationally symmetrical.
I once ...
user88
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What is the maximum number of solutions a Sudoku puzzle can have?
I've seen Sudoku puzzles that can be solved two different ways. Referring to a traditional 9x9 grid:
Is it possible for a Sudoku puzzle to have more than two solutions? If so, what is the maximum ...
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