Sudoku1 - Grid Generation

Dialog box Grid Generation The dialog box Grid Generation is offered at startup and makes it possible to automatically generate a type of grid, choosing:

- Size of the grid: cells 4x4, 6x6, 8x8, 9x9, 12x12 or 16x16. The associated blocks are shown in light blue and dark. Click simply on the grid to choose. Warning, fashion 6, 8 and 12 blocks are no longer symmetrical, increasing the difficulty of the grid.
- Difficulty: You can choose between 4 levels of difficulty: Easy level (recommended for beginners), Medium, Hard and Terrible (time and the number of cells indicated here).
- Type of display in the cells in the form of numbers, letters or pictures. This display can be changed at any time during the game using the tool bar.
- Variant used: A combination of classic Sudoku with variants is proposed. This significantly complicates the grid. See here for the various variants.

Genere image sudoku

The Cancel button allows to return to the grid without modification.
The Help button lets you view this page.
Once the grid generated, it is automatically defined as initial configuration.

The method of generation uses 2 stages:
- Computing reference grid. A grid of random NxN cells could be built. Several loops may be necessary to achieve this grid,
- Identification of shown cells in order to eliminate multiple solutions and computation of cells to be erased (those that the user has to find), optimizing in the same way the number of multiple solutions.