What is Lucena Position?

The Lucena Position is a term used in chess endgame theory. It refers to a specific pawn endgame position where the stronger side has a rook and a pawn that is only one rank away from promoting, and the weaker side has a rook. The stronger side can force a win with correct play. This position is named after 15th-century Spanish chess player Luis Ramirez de Lucena. It's one of the most famous and important positions in chess endgame, frequently used for training and educational purposes.