When I was wandering around the bookstore here, I suddenly found a book with the Chinese character "Sudoku" written on it. I quickly looked at what it was and found it was a number-filling game. The English name is Sudoku, which feels like a Japanese name, probably translated from Japanese. Later I found this game in every newspaper here. It's interesting to have nothing to do while taking the train or eating.

After searching on the Internet, it turns out that Sudoku originated in Switzerland and was first published by an American magazine of mathematical logic games in A.D. 1970. At that time, it was named "Digital Method". Later it became popular in Japan. In 1984, "Sudoku" is named, that is, the omission of "independent numbers" is interpreted as each square is filled with a number. Until 2004, Wayne Gould, a former judge of the Hong Kong High Court, brought this game to Britain, which set off a sudoku craze and became a popular game in Britain. Now you can see Sudoku game brochures, Sudoku almanac and Sudoku game consoles in any bookstore in several countries I have been to.

I found this game online and put it in my treasure chest. Download and play! (However, this software design is not difficult. I can solve most "super-difficult" levels in 15 minutes. Some topics in the brochure are quite difficult and extremely eye-catching! )

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Thank you very much for the more resources provided by friends in Sudoku's messages. Here are some special additions:

There are more Sudoku websites now. There are several interesting ones:

1. Raphael Finkel's daily Sudoku puzzle:

A large number of Sudoku game questions have been launched, and they can also be ranked and scored. It is a good place to play Sudoku online.

3。 Daily telegraph:

/group/sudokuworld/

Sudoku Club is a collection of information that all Sudoku lovers are interested in and need.