In this article, we will analyze a very common endgame, where the attacking player managed to retain the advantage of an extra pawn until the material was reduced to only two pawns against one.
If the stronger side has an extra pawn on one flank and pawns are blocked on the other flank, the attacking player almost always wins. If they cannot directly claim a free pawn, the player wins by surrendering that pawn and gaining the opponent’s blocked pawn. Difficulties can arise if the blocked pawn is on a rook file. As we know, rook pawns are almost always associated with exceptions to normal situations.
The following position gives White the only right move to ensure a victory.
The mentioned article: Key squares