Tied cells are coupled in a square (for example: cells 1 and 2 hold digits 8 and 9). What type of CellContent is Tied? It is vital to solve the sudoku.Ī cell is tied when you know for sure it can only hold an specific set of digits (usually, 2 digits). These are the different events the application will publish. There is another subtype Domain\Sudoku\ValueObject\Event.They are the different types of content a cell can have: Fixed, Found, Nothing or Tied. There is one special subtype of value objects in Domain\Sudoku\ValueObject\CellContent.You will find value objects like Position, Status or Result.They are kept in Domain\Sudoku\ValueObject.There is one single class of this type so far: SolveSudoku, responsible to orchestrate the solving of the provided sudoku.There should be a class for each use case.They are the entry point into the domain.They are kept in namespace Domain\Sudoku\Application\Handler.They are grouped into a collection, returned by a class implementing the interface Domain\Sudoku\Strategy\StragiesLoader.When the algorithm is too complex, I have splitted part of the strategy into a Substrategy class.I have added a Strategy class for every trick I have implemented.Their responsibility is to solve the sudoku.
They are kept in the namespace Domain\Sudoku\Strategy\Strategy.You will find classes like Board, Cell, Column or Square.Their responsibility is to keep the status of the sudoku while it is solved.They are kept in the namespace Domain\Sudoku\Entity.Structural classes for Sudoku solver app.And I came up with this implementation in PHP (you can find it in my github repository). One day, I wondered… Can I implement these tricks into an application? And I starting building in my mind the classes needed to implement a sudoku solver. But they usually let me get the work done. To solve them, I have gathered a set of tricks I can apply sistematically.
#Sudoku strategy reddit software
If you are wrong, you fix a row but at the same time you break a column or a square (it happens the same when you deal with complex software systems, but this is another story…).
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