Arberg Chess - a freeware chess program.
Free unlimited vesion (if you like it send a postcard to Jesper's son, he collects stamps - email address is in the program).
Supports two languages (English and Danish).
Very small (uses only 30 kb).
Saves last game.
Undo last move...
Reversi or Othello is a well known boardgame. It's easy to play, but a challenge to win - and really this version is a challenge.
The board consists of 8x8 fields, the two players alternately put white and black stones onto the board. Your goal is to have the most stones at the end of the game...