According to www.freeminesweeper.org (whose game is shown in the guide cover image)

Minesweeper is a favourite of office and late night shift workers worldwide.

It's addictive, requires you to think, and every click/tap is fraught with tension. In short, an ideal time waster. In fact, one might think that minesweeper and solitaire were the primary motivation behind Microsoft developing Windows.

In this guide is a (slightly simplified) implementation of the classic Minesweeper game for the PyPortal and its touchscreen.

Because of the small 16x16 pixel game board squares, a stylus is recommended. One such as that used with a Nintendo DS type system will work fine.