The modern version of Sudoku was invented in 1979 when a freelance puzzle designer from Indianapolis published his "Number Place" puzzle in Dell Magazine's Pencil Puzzles and Word Games.
Introduced to Japan in 1984 and named Suuji wa dokushin ni kagiru, which means "the numbers must be single" or "the :numbers must occupy only once". The puzzles name was soon abbreviated to Sudoku. The Japanese publishers added new innovations to the puzzle, and eventually Sudoku was published in dozens of mainstream periodicals.
Over six years, retired Hong Kong Judge Wayne Gould developed a computer program to quickly produce Sudoku puzzles. He promoted the puzzles to The Times in Great Britain, where the game found instant popularity, being dubbed the "fastest growing puzzle" by the world media.
Today millions of people all over the globe enjoy the addictive challenge of Sudoku.
This electronic version of Sudoku requires no pencils or paper and can be played by all ages. For a fun, portable challenge, arrange the numbers from one to six in rows, columns and region blocks without repeating them.
Our Sudoku includes carrying cord, instructions and replaceable battery. The Sudoku measures 3 1/2" X 2 1/2" X 3/4" and provides an imprint area of 1 1/4" X 1/4".
In the minimum quanyity of 50 the Sudoku with your custom imprint is less than $ 4.50 each.
For current pricing information you are invited to call us at 800 960-9080 or 206 285-5359 or email us at firstname.lastname@example.org