A strange little side quest
A quick detour while What Does Not Fit waits for your next move: The name Tetris combines a reference to four-square pieces with Pajitnov's interest in tennis. Another piece of context lands nicely beside it: The Oregon Trail eventually appeared across generations of computer hardware and sold tens of millions of copies, making it one of the most enduring educational games. That history is one reason familiar mechanics can still feel new when they are recombined well.
