# TCEC League D Shakes Up with Fischer Random Format
The engines are grinding through Round 2 of TCEC Double Fischer Random Chess 5, and League D has become the proving ground for which programs adapt best when the opening book disappears.
Fischer Random strips away preparation. No 25-move theoretical battles. No memorized lines. The engines face unfamiliar positions from move one, and that changes everything.
Eight competitors fight through a double round-robin at 30 minutes plus 3 seconds per move. The format demands genuine chess strength rather than database depth. Some engines crack under the pressure. Others thrive.
The double round-robin structure matters. Each engine plays both colors against every opponent twice, which eliminates the color imbalance that plagues single-round events. A win as White carries the same weight as a win as Black.
League D sits below the elite divisions, but these tournaments feed upward. Strong performances here earn promotion. Weak results mean relegation. The stakes remain real even if the names lack the flash of top-tier events.
Fischer Random exposes which engines actually calculate chess rather than pattern-match. The results will tell us something genuine about their playing strength. That's why these broadcasts matter. Engine ratings mean little when preparation dies. Only raw chess ability survives.