Isanaki 2.6b in a Snap !
Sudoku is a logic-based number puzzle played on a 9×9 grid, divided into nine 3×3 subgrids (also called boxes or regions). The goal is to fill in the grid so that:
- Each row contains the digits 1 to 9 exactly once.
- Each column contains the digits 1 to 9 exactly once.
- Each 3×3 box contains the digits 1 to 9 exactly once.
The puzzle starts with some numbers already placed in the grid, known as givens. The challenge is to deduce the missing numbers using logic
Isanaki 2.6b is a free multilingual freeware that can help you playing Sudoku (grids with numbers) and Wordoku (grids with letters). It can generate boards with different levels of difficulty, provides hints to help you solving the grids, explains graphically the logic behind the next possible (and easiest) entry in the grid.
In this release, using the brute-force technique, it solves all boards (to the best of my knowledge) and,using logical deduction, it solves most of the hard Sudoku boards.
Isanaki 2.6b supports English, French, Spanish and Dutch languages...
Terminology
Back to TopA Sudoku Board is made up of cells (81 cells in a 9*9 Board and 256 cells in a 16*16 Board) divided
in Rows (horizontal lines), Columns (vertical lines) and Boxes containing 9 (3*3) or 16 (4*4) cells.
The rows, columns and boxes are called Groups.
Every group must contain all the numbers from 1 to 9 ( in a 9*9 Board) or from 1 to 9 and A to G ( for 16*16 Board)
At the start, some cells are filled with numbers called Clues or Givens. The numbers added when solving the game
are simply called solved cells. Interestingly, there seems to be no specific name for them. In Isanaki, I call them Quest cells."