I was reading that question and I remember of the Wikipedia list of algorithms. I know that Wikipedia have a list of Open Source games too, but what I want is a links for simple game algorithms, even if written in pseudocode.
As "simple" games, I mean games like Sudoku, Bejeweled, Solitaire, Minesweeper, Labyrinth, Snakes, Gorilla, Chess, Tetris, etc.
Bonus for C# source code :)