Sudoku is a logic game that uses paper and pens to make calculations. Players need to infer the number of all remaining spaces according to the known numbers on the 9x9 disk, and the
numbers in each row, each column, and in each of the rough lines are 1-9 and do not repeat . To exclude the law, the Sudoku plate is a nine, each house is divided into nine small lattice. In these 81 lattice given a certain number of known conditions, the use of logic and reasoning, in other spaces filled with 1-9 of the number. So that 1-9 of each number in each row, each column and each house will appear only once, so also known as "nine Gongge." Basic Problem Solving methods: Exclusion method, remainder method, visual method, candidate number method (refer to Baidu Encyclopedia)
The first of the design and realization of Sudoku Game--Understanding the Sudoku process
