Revers!

REVERS! is a version of the board game Reversi, a game similar to Othello. (The only real difference between the two games is that Othello has a fixed starting position.) You can play against the PET with one of two starting board configurations. The computer opponent is strong enough to punish careless play but can easily be goaded into conceding key squares early in the game. The board shows a simple animation indicating the squares that the PET is considering for its next move; the PET's "thinking" takes some time but is not intolerably slow.

The ! on end of the filename indicates that this program has sound, but the only sound effect I noticed was a simple "plink" sound when pieces reverse colour. A small victory fanfare at the end of the game would have enhanced the sound experience.