Introduction - If you have any usage issues, please Google them yourself
Jiugongge Sudoku, is a Swiss from the 18th century, the latter in the U.S. and Japan to carry forward the number of puzzles. Sudoku disk is Jiu Gong, every house is divided into nine small cells. In an eighty given a grid of known numbers and problem solving certain conditions, the use of logic and reasoning, the spaces fill in other numbers 1-9. So that each number 1-9 in each row, each column and each palace only once. Comprehensive test of this game who do title of observation and reasoning, although the gameplay is simple, but the number is ever-changing arrangement, therefore, many educators think that Sudoku is a great way to train the mind.