[doypcdtc] Steering toward difficult endgames

Large chess endgame tablebases do not add much to a chess engine's strength because those difficult endgames occur very rarely by chance.

However, what if it is not left to chance?  An engine assumes its opponent does not have a tablebase while it does, and assumes the opponent will not be able to play certain difficult, long endgames correctly, swindling a draw despite large material imbalance, or a win despite a theoretical draw.  The engine deliberately steers toward, for example, Q vs R or RB vs R.

The game is no longer symmetric, possibly requiring significant changes to search algorithms.