T4 is a challenging board game for Windows 3.x, Windows NT or Windows 95.
It can be played against the computer or between two human players.
 It's a game with simple rules, not unlike Othello/Reversi or Four-In-A-Row,
but richer and more complex. It has the interesting twist that your opponent
can choose which piece you will play.
(But you can revenge when it's her/his/its turn).
The computer opponent plays a fairly decent game, with parametrable skill
levels. The package includes a detailed WinHelp file with graphics and is easy
to install.