Connected passed pawns
Connected passed pawns are two passed pawns on adjacent files that support each other and can advance together, so the enemy cannot stop them one at a time and they often decide an endgame.
Two pawns that stand side by side on neighboring files, with no enemy pawn able to block or capture either of them, are worth far more than their material suggests. Each one covers the square in front of the other, so no blockader can settle there, and whenever one pawn steps ahead, the other protects it. The usual plan is to push them forward in step, always moving whichever pawn keeps the pair level or one rank apart, until they reach the sixth rank. A pair on the sixth usually beats a lone rook, because the rook cannot stop one pawn without letting the other through. You can spot the chance early by looking for a pawn majority that can create a passed pawn, then asking whether a second pawn can join it. The most common mistake is rushing one pawn ahead alone. A lone pawn can be blockaded and picked off, whereas a pair that stays together keeps its mutual protection. Another error is forgetting your own king: bring it up behind the pawns so that it supports the last steps and limits enemy checks. Defenders should blockade the front pawn with the king and trade off one of the pair as soon as they can.
Compare it with Connected pawns. Connected pawns are two or more friendly pawns standing on adjacent files, side by side or on neighboring ranks, so that they can support each other as they advance.
A neighboring idea is Outside passed pawn. An outside passed pawn is a passer on a distant wing that works as a decoy: the defending king has to go and stop it, and the moves this takes let the other king win pawns elsewhere.
Also worth reading is Pawn promotion race. A pawn promotion race is a position where both sides push passed pawns toward promotion, and the result depends on who queens first and what the new queen can do.
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Related terms
A passed pawn has a clear road to promotion as far as enemy pawns are concerned: none stands ahead of it on its own file or the two neighboring files, so the opponent must spend a piece or the king to stop it.
Connected pawns are two or more friendly pawns standing on adjacent files, side by side or on neighboring ranks, so that they can support each other as they advance.
A protected passed pawn is a pawn that no enemy pawn can block or capture on its way to promotion and that has a friendly pawn diagonally behind it, ready to recapture if it is taken.
An outside passed pawn is a passer on a distant wing that works as a decoy: the defending king has to go and stop it, and the moves this takes let the other king win pawns elsewhere.
A pawn promotion race is a position where both sides push passed pawns toward promotion, and the result depends on who queens first and what the new queen can do.
Guides that go further
What to decide first, the questions to ask, what a first lesson should show and the red flags to avoid.
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