View on GitHub

SudokuSolver

A tool for solving sudoku / Инструмент для решения судоку

Sudoku solver: user guide

ƒ  RD AAOW FDL; 13.04.2025; 3:02

Page contents

General information

This tool allows you to automatically or manually solve default (9 x 9) sudoku tables.

Solution based on recursive function that builds series of “assumptions” and finds first one that doesn’t conflict with sudoku game rules.

Warning! This method always finishes with some result (it is finite). But in some cases it can take some time. This behavior is correct for the application.

In addition, the app now has a game mode: it can check for the presence of a solution, but not display it, only reporting its presence or absence.

 

Game mode

A new game can be launched from any state of the app. However, we recommend switching the interface to the game mode to display buttons more suitable for the gameplay on the main screen. In addition, in this mode, the app doesn’t allow the device to go into sleep mode if the player is inactive.

The button for starting a new game switches the app to the active game state, in which it begins to take into account the player’s actions for the purpose of calculating the winnings. In this case, the player can select the difficulty level of the generated table. In addition, the active game doesn’t allow changing the values in the cells filled in when generating the table.

Exit from the active game state occurs if:

In the active game state, the main function is to check for a solution (blue checkmark or F3 key). When you click this button, the current state of the table is checked for the possibility of a successful solution. If there is no solution, the user is notified of an error. Otherwise, it is not displayed in the interface, but the user can see a message about its presence. At the same time, his winnings are calculated, and the entered numbers become unchangeable.

The player’s winnings are the number of correct values specified between pressing the check button, squared and multiplied by the difficulty level selected at the beginning of the game. This formula allows us to simultaneously take into account the complexity of the task and the length of the chain of values entered between checks.

The game is considered successfully completed when, upon pressing the check button, there is one or less empty cell left in the table. The active game state is disabled, and the user is provided with game mode statistics.

It should be noted that exiting the app doesn’t stop the game. The state of the app is saved until the next launch, so the game can be continued at any time.

 

Controls (Android)

 

Controls (Windows)