23 Sticks

"23 Sticks" is a simple strategy game you play against the computer. You start off with 23 sticks (obviously), and during each player's turn, you're allowed to take one, two, or three sticks. The one who has to take the last stick loses the game. The computer is backed up by some common sense AI -- nothing elaborate -- but is not unbeatable either. (This is a Win32 application that was converted with the Desktop Bridge.)