Classic Tetris Monthly is the biggest, best, and longest-running online Classic Tetris tournament for over four years, a training ground for future World Champions. The top 16 qualifiers in the world will compete in a single-elimination, best-of-five tournament. It's the most competitive monthly Tetris event in the world, with records being set nearly every month. The rest of us get seeded into "lower" tournaments played mostly for fun, but also sometimes for vengeance.