Sudoku (aka Su Doko, Sudoko, Soduko), is the latest craze to hit the
Sudoko apparently came to the
Euler retained his firm Calvinist beliefs throughout life, holding daily prayer and worship in his home and sometimes preaching.
It rather ironic that The Independent newspaper boasts that no mathematics is needed to solve it! I think they are getting confused with maths and arithmetic; there is a lot of maths going on! See here for example.
There are a number of Sudoko solvers on the web;