Tricky puzzles. Diagonal sudoku


Tricky puzzles - puzzles are not only exciting, but also useful. This is a great gymnastics for the mind, developing attentiveness, logic, ability to analyze, and even allowing you to enjoy the solution obtained. Number puzzles Perhaps the most popular puzzle of our modernity - sudoku. "Sudoku" in Japanese - "numbers that stand apart

Tricky puzzles - puzzles are not only exciting, but also useful. This is a great gymnastics for the mind, developing attentiveness, logic, ability to analyze, and even allowing you to enjoy the solution obtained.

Number puzzles

Perhaps the most popular puzzle of our modernity - sudoku.

"Sudoku" in Japanese - "numbers that stand apart."

This game is a 9x9 square consisting of 3x3 small squares. In complex games, squares can be more - 15x15, 25x25 and more. In a few cells, numbers are put in advance - this is the key to the clue.

Puzzles, where the additional conditions of the problem - numbers from 1 to 9 - are placed on the diagonals, are called "Diagonal-Sudoku", or, in the English version, Sudoku X.

The way to solve a problem is like scanning - in the square a row is selected that is most filled with key numbers - the smaller the empty cells, the easier it is to find the missing number.

Diagonal sudoku also, in turn, have various variations and combinations.

Variants of tasks

Diagonals can be large and small - in the main square, in blocks of small squares, angular and broken.

  • Color diagonal - Sudoku, in which digital values ​​must be placed separately in each color block.
  • More complex diagonal sudoku - antidiagonal - on the diagonals of the square are only three different numbers.
  • A pan-diagonal square, in which the rows, columns, and diagonals contain numbers from 1 to 25 — in such a sudoku, the diagonals are complex. Interestingly, to make a smaller pan-diagonal square is impossible. One of the numbers that is not in the selected row is applied in order to all the empty cells of the row. If at the intersection of cells of this number is not, it can be put in the cell.

Perform this operation until all empty cells are filled. And we reconcile on columns, small 3x3 squares and on diagonals so that the numbers do not repeat.

Mathematical skills in solving Sudoku is not required.

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