Shouldering the Pawn Across
White to play and win
PlayThe mid-line rule usually draws, but here your king already escorts the pawn and the enemy king is cut off. When the attacker's pieces are this active, the pawn goes through even short of the center.
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Shouldering the Pawn Across
Win against perfect defense
Waking the engine…
The theory
The mid-line rule is a guide, not a law. When the attacker's king already escorts the pawn and the defender is cut off, even a pawn short of the center can win.
Shouldering. Your king uses its body to shove the enemy king back and keep it off the pawn's path. That is shouldering, and it buys the tempi the pawn needs.
Cut off and advance. With the rook holding the cutting file and the king shouldering, the pawn marches. The defending king simply cannot arrive.
In this drill the defense fights to reach the blockade. Keep the enemy king cut off, shoulder it away, and promote.