Six-house Sudoku, as the name implies, has only six houses, each with 2*3, a total of 6*6. So the rule is that the number of each house, column and row is not repeated, that is, each house, column and column has the number 1-6.

The solution of Sudoku in the sixth house

1, exclusion method

Finding the only fillable space in a cell with numbers is called exclusion method, and finding the only fillable space with numbers is called elimination solution (implicit unique solution).

2. Remainder method

Finding the unique fillable number by lattice is called remainder method, and finding the unique fillable number by lattice is called congruence solution. The remainder method is a method to delete numbers that have appeared in allele group positions, and each position has 20 allele group positions.

3. Relative probability

Relative probability is not the real probability, but the possibility of comparing several numbers in the same cell. Relative probability = probability of nine squares appearing × probability of rows appearing × probability of columns appearing.

4. Auxiliary solution

The above method is called the basic solution, and all other solutions are called the advanced solution, which is a supplement to the basic solution, so it is also called the auxiliary solution.

Extended data:

Schematic diagram of basic elements of Sudoku unit: the smallest unit in Sudoku, with a total of 81in standard Sudoku;

Row: a group of 9 horizontal cells;

Column: a collection of 9 vertical cells;

Palace: the area divided by thick black lines is a collection of 9 cells in standard Sudoku;

Known number: the number given by the initial disk of Sudoku;

Candidate number: the number that can be filled in each empty cell.

Baidu Encyclopedia-Sudoku Skills