Rule 0 1 Sudoku until 9? 9 square, divided into 3? 39 small squares. What's the name of each small square? District? We need to fill in the number 1~9 in the small box, so that every row, every column and every? District? There are no duplicate numbers.
Sudoku puzzles have thousands of combinations of numbers and cover many difficulties, including many variants with different attributes, each of which provides players with their own unique logical challenges.
Play 0 1 classic sudoku
Each puzzle consists of a 9x9 grid, and the prompt numbers are given in different positions. The purpose of the game is to fill empty squares with numbers, so that there are no repeated numbers in every row, column and 3×3 house.
Super Sudoku
Each puzzle consists of a grid of 12x 12 or 16x 16, and prompt numbers are given at different positions. The purpose of the game is to use the numbers 1 to 12 (for the puzzle of 12x 12) or 1 to 16 (for the puzzle of 16x 16).
03 irregular sudoku
Each puzzle consists of a grid of 6x6, 9x9 or 12x 12, and prompt numbers are given in different positions. The purpose of the game is to fill the blank squares with the numbers 1 to 6 (for 6x6 puzzles), 1 to 9 (for 9x9 puzzles) or 1 to 12 (for 12x 12 puzzles), so that each
04 Mini Sudoku
Each puzzle consists of a 4x4 or 6x6 grid, and prompt numbers are given in different positions. The purpose of the game is to fill the blank squares with the numbers 1 to 4 (for 4x4 puzzles) or 1 to 6 (for 6x6 puzzles), so that there are no repeated numbers in each row, column and house.
05 diagonal sudoku
Each puzzle consists of a 9x9 grid, and the prompt numbers are given in different positions. The purpose of the game is to fill the blank box with the numbers 1 to 9, so that there are no repeated numbers in each row, column, 3×3 house and two diagonal lines. Diagonal odd-even Sudoku rules can refer to odd-even Sudoku at the same time.
06 odd even sudoku
Each puzzle consists of a 9x9 grid, and there are prompt numbers in different positions of the grid, and some squares with prompt numbers are marked in gray. The purpose of the game is to fill blank squares with numbers, so that every row, column and 3×3 house have no repeated numbers, and all squares marked with gray numbers have the same parity.
Skill 0 1 exclusion method
By using the principle that the numbers in each row and column in Sudoku rules cannot be repeated, the numbers that have already appeared in this area are excluded.
Cross exclusion method
Use two identical numbers in three houses in the same row and column to find the position of another identical number.
The use of triple connected space
There is a whole row of three squares in the ninth house in the middle, called three squares. The numbers in the other two houses in the same row should be in other positions in this house.
Question 0 1 mining method
Mr. Wang finally quoted the price and then dug up some figures;
02 digital filling method
Fill in some numbers on the empty disk.
Development history 0 1 Sudoku's predecessor is? Jiugongge? , originated in China. Thousands of years ago, our ancestors invented Luo Shu, which is more complicated than Sudoku now. It requires that the sum of the numbers in the vertical and horizontal directions is equal to 15, rather than a simple number of nine that cannot be repeated. From China's ancient book The Book of Changes? Nine palace map? It also comes from this, so it is called? Uncle Luo Nine palace map? . And then what? Jiugong? Due to the important position of the Book of Changes in the history of China's cultural development, the name of the Book of Changes has also been preserved and is still in use today. 1783, Swiss mathematician Leonhard? Euler invented what was then called. Latin Rubik's cube? (Latin square) game, this game is an n? N, each row and column is composed of n non-repeating numbers or letters. In the 1970s, 19, a book entitled "Dell Puzzle M? g？ Zines) started publishing and is now called? Sudoku? At that time, people called this game? Digital puzzle? (digit), at this time 9? 9' s 8 1 grid number game has begun to take shape. Nowadays, there are many Sudoku competitions in the world:
World Sudoku Championship: The highest-level international Sudoku Championship organized by the World Puzzle Federation is held once a year.
Beijing International Sudoku Grand Prix: An international Sudoku competition hosted by Beijing with high prize money.
China Sudoku Experiment: Selecting Sudoku Masters for the Annual World Sudoku Championship.