The present tutorial has been worked out especially for those who want to get used to the rules and procedures of solving sudokus. It has 5 levels of gradual difficulty. The functioning of the present tutorial is very simple. First one should read the characteristics of each level with the help of menu "Help→Tutorial". Having once made the goals of each level clear one will be able to solve different sudokus of this level. To solve these sudokus go to the Reference of the Tutorial in "Save Game". Each level has 5 exercises. One can use the little help or sensei mode in case of any difficulties; but we strongly recommend to complete sudoku of each level without help.
At this level it is necessary to study the main sudoku rules solving simple sudokus 2 × 3.
Remember:
Each row, column and box must contain symbols 1, 2, 3, 4, 5 and 6. Delete all group possibilities where the symbol occurs without repeating these symbols.
At this level it is necessary to learn how to deal with several grids taking into account that rows and columns end up within the grid. Besides, it is necessary to get used to the influence zones of cells.
Remember:
Use common help to see the influence zones of each cell.
Remember that rows and columns end up within the grid.
Try to concentrate on boxes belonging to two different grids:
They have double limitation and it can make the task to be solved clear.
Having solved the tasks concentrate on rows and columns of the grid and its corresponding mirror groups placed into another grid. If you manage to separate the symbols of the grid you will be able to find the way to solve the task easier.
This level is intended for consolidation of everything that was studied at two previous levels, but the level of difficulty is higher. Now you have to solve several samurai for children with five grids 2 × 3.
Remember:
If you face any problems you can use the help of the program.
sensei mode is intended for better understanding and studying of each rule. Do not apply any rule until it is clear to you.
At this level you have to face more complex rules. For this purpose we offer small boards containing several pairs that make it more difficult to solve the set task.
Remember:
Go through the pair and trio norms.
Do not fall into despair: the reduction method is considered to be absurd, but it has its certain value as it proves the presence of any contradiction. Nevertheless we recommend to apply the rules.
At last we offer boards with more than nine symbols. You will probably work hard to make the new sizes and new symbols clear to yourself though in fact it does not have any additional difficulty.
Remember:
Do not forget everything that was studied at previous levels.
All symbols are the identical. It is necessary to use them in one and the same way in order to solve sudoku.