You could have downloaded TRIAD 1.5 from our software library for free. This tool was originally developed by Fair Isaac Corporation. The software relates to System Utilities.
From the developer:
A beautiful tile-based strategy game that will hook you from your first game. As you stretch your mind's eye, you'll find more and more winning tile combinations. A game that will stretch your ability to find complex patterns, Triad will have you biting your fingernails in game after game.
You may want to check out more software, such as Triple Triad Extreme, Triad Windows Client or ListeningMusicTeacher, which might be similar to TRIAD.