Vancura Position:

The Vancura Position famous endgame position that occurs with a Rook, pawn & king. It is a drawn position with a rook and rook's pawn versus a rook, when the pawn is not beyond its sixth rank, and the stronger side's rook is in front of the pawn Black's rook keeps attacking the pawn from the side from some distance away, while preventing the white king from finding cover from checks. See the technique used by black below to draw this endgame