Sudoku

Brief introduction to "Sudoku (with value-for-money pocket version)": New Zealand judge John Gollard, who once served in the Hong Kong High Court, accidentally discovered the Sudoku game while traveling to Tokyo, Japan, in March 1997. And he is the real promoter who made Sudoku popular all over the world. Through his 6 years of continuous research, he wrote a computer program for Sudoku. First published in the British "Times", and soon followed by other newspapers, Sudoku soon became popular all over the UK. Later, he put Sudoku-related computer programs on his website, and from then on the game became popular all over the world. Later, due to the popularity of Sudoku, many similar mathematical puzzle games were derived, such as: sum sum, killer Sudoku, etc., To name a few.