This type of endings when one player has an extra Pawn in Rook ending but all Pawns are on the same side of board is under normal condition (i.e. no trapped Rook or faraway and cut King) drawish and many players consider it as easy task. But in practice we can see that even super-GMs can slip and lose in this situation like Geller with Fischer in 1970 or Duras against Niemzowitsch (see Duras vs A Nimzowitsch, 1912 and Geller vs Fischer, 1970). This collection should provide some material for study of this type of endings played by strong players through the chess history.