Vancura position
The Vancura position is a drawing setup against a rook pawn on the sixth rank with its rook in front: the defending rook attacks the pawn from the side, and the defending king waits on the far side of the board.
In practice: aim for the setup instead of waiting passively.
The Vancura position is the standard way to hold a rook ending against a rook pawn that has reached the sixth rank with its rook in front of it. Picture a white pawn on a6, a white rook on a8 and the white king some way off. The defender puts the rook on the sixth rank, for example on f6, so that it attacks the pawn from the side, and keeps the king on g7 or h7. Now the attacking rook is tied to the pawn: if it leaves the a-file, the pawn falls. When the attacking king walks over to support the pawn, the defending rook drives it back with checks and then returns to the sixth rank. If the pawn advances to a7, the rook can drop behind it on the a-file, and because the king stands on g7 or h7, the attacker has no skewer along the seventh rank, so the draw holds. Use it whenever you defend against a rook pawn in this structure: aim for the setup instead of waiting passively. The common mistakes are putting the king on the wrong square, such as e7 or f7, where the pawn's advance followed by a rook move to h8 wins the defending rook with a skewer, and letting the rook drift off the sixth rank so that the attacking king can reach b7 without being checked.
A neighboring idea is Rook and pawn versus rook. Rook and pawn versus rook is the ending where one side has a rook and a single pawn against a lone rook, a common practical ending whose result usually turns on where the defending king stands.
Compare it with Theoretical draw. A theoretical draw is a position in which perfect play by both sides leads to a draw, so neither player can force a win no matter how many moves are left.
It sits close to Long side. The long side is the side of a pawn's file with more files between it and the edge of the board, giving a rook more room to check from far away.
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Related terms
Rook and pawn versus rook is the ending where one side has a rook and a single pawn against a lone rook, a common practical ending whose result usually turns on where the defending king stands.
A rook pawn is a pawn on the a-file or the h-file, the edge of the board, which has fewer capture options and gives the attacker less room to maneuver.
The Philidor position is the textbook draw for the side with the lone rook: the king blocks the pawn, the rook guards its own third rank, and once the pawn steps onto that rank the rook drops back to check from behind.
A theoretical draw is a position in which perfect play by both sides leads to a draw, so neither player can force a win no matter how many moves are left.
Checking distance is the space a defending rook keeps from the enemy king, usually a long way off, so it can give a series of checks from the side or behind without being attacked.
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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