The game first appeared in Japan in 1984 where it was given the name “Sudoku,” which is short for a longer expression in Japanese – “Sūji wa dokushin ni kagiru” – which means, “the digits are limited to one occurrence.”


Su Doku (current version V3.55 April 2009)

The spreadsheet assists in completing the Su Doku puzzles with various levels of assistance and error detection of false moves.


Download xls file  (86k)