First, the use of formulas.
The Jiugongge Sudoku formula uses three stars to divide the trajectory, two males determine the orientation, and the reverberation is clear for a while, hitting the middle branch of the leaf, holding the air on both wings, combing the pulse, blowing away the chaff, and imposing on all sides.
Second, the skills of Jiugongge
1, union division: find the same number in two rows of three parallel nine squares, and then use nine squares to get the position of another row of numbers.
2. Patrol grid method: find out the number with high frequency in each nine grids and get the position of the number in other nine grids.
3. Exclusion method: each line or nine squares observation. If there is no other number to fill in a position, fill in the remaining numbers.
4. undetermined method: temporarily determine a number in a certain area, and then use it to exclude it.
5. Hypothesis method: that is, randomly fill in a number at a certain position and then deduce it, which may eventually lead to contradictions and negative conclusions.
6. Rank-and-column method: first break through ranks and improve the efficiency of problem solving.
7. Frequency method: list all the situations in a row or nine squares, and then select the number with high frequency in a certain position.
Introduction and function of Sudoku;
First of all, briefly introduce Sudoku.
Jiugongge, a digital game, originated from Hutuluo, which are two mysterious patterns handed down from ancient China. It has always been regarded as the birthplace of Heluo culture and the source of Chinese civilization, and is known as the "Rubik's Cube".
The game of rearranging Jiugong was very popular in China during the Tang and Song Dynasties. On a 3×3 grid, there are 1-8 octets, leaving a space, and the numbers around each space can be moved into the space. Set the initial arrangement number first, and then start thinking about how to achieve it with the least number of moves.
Second, the role
1, exercise logical thinking ability. Sudoku is a game that needs thinking and reasoning. It can train players' logical thinking ability and improve their ability to analyze and solve problems.
2. Enhance math ability. Sudoku involves numbers and calculations, and playing Sudoku can improve players' mathematical abilities, such as number cognition, calculation ability, logical reasoning and spatial imagination.
3. Improve concentration and patience. Playing Sudoku requires players to focus on numbers, patience and perseverance, because solving Sudoku takes time and thinking.
4. Reduce stress. Sudoku is a relaxing game. Players can relieve stress and tension by filling in numbers.
5. Enhance self-confidence. When players successfully solve Sudoku, they will have a sense of accomplishment and self-confidence, and can also promote mental health.