--- title: "Short side in chess" url: "https://georgelichess.com/glossary/short-side.md" canonical_url: "https://georgelichess.com/glossary/short-side" last_updated: "2026-11-07" type: "reference" summary: "The short side is the side of a pawn's file that has fewer files between it and the edge of the board. Getting this backwards is a well-known way to lose." related: ["https://georgelichess.com/glossary/long-side.md", "https://georgelichess.com/glossary/checking-distance.md", "https://georgelichess.com/glossary/rook-endgame.md", "https://georgelichess.com/glossary/rook-pawn.md", "https://georgelichess.com/glossary/lucena-position.md", "https://georgelichess.com/glossary/category/endgames.md", "https://georgelichess.com/glossary.md"] --- # Short side in chess > **For AI agents:** the complete index of GeorgeLiChess pages is [llms.txt](https://georgelichess.com/llms.txt). Every page is also served as markdown at its URL plus .md. The short side is the side of a pawn's file that has fewer files between it and the edge of the board. Getting this backwards is a well-known way to lose. The short side is the side of a pawn's file that has fewer files between it and the edge of the board, the opposite of the long side where more room is available. Every pawn splits the board into two sides, and these sides are rarely equal. The short side is the one with fewer files between the pawn's file and the edge. For a pawn on the c-file, the short side is the a- and b-files, while the [long side](https://georgelichess.com/glossary/long-side.md) is everything from the d-file to the h-file. The idea matters most in rook endings with a single pawn, when the defending king has to leave the pawn's file. The standard advice is to send the king to the short side and keep the rook on the long side, where it has room to check the attacking king from a distance. Getting this backwards is a well-known way to lose. With the king on the long side, the rook is left on the short side, too close to the pawn to give useful checks from the side, and the attacking king can approach it or hide from it. When you know which side is short, you can plan where your king and rook go before the checks begin, instead of finding out later that the rook has no room. Count the files on each side of the pawn first, then decide. ## Example position White's pawn is on the c-file, so the a- and b-files are its short side and the d- to h-files its long side. Black has the pieces the wrong way round: the king on g7 is on the long side and the rook on a2 is squeezed onto the short side. Position (FEN): `8/6k1/8/2P5/8/2K5/r7/1R6 w - - 0 1` It sits close to [Checking distance](https://georgelichess.com/glossary/checking-distance.md). 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. A neighboring idea is [Pawn breakthrough](https://georgelichess.com/glossary/pawn-breakthrough.md). A pawn breakthrough is a sacrifice of one or more pawns that tears open the opposing pawn chain so that a remaining pawn can run through and promote. If "Short side" has cost you half a point, a [first lesson](https://georgelichess.com/book/first-lesson.md) is a good place to find the pattern behind it: George Li goes through your games and builds a plan. ## Related terms - [Long side](https://georgelichess.com/glossary/long-side.md) - [Checking distance](https://georgelichess.com/glossary/checking-distance.md) - [Rook endgame](https://georgelichess.com/glossary/rook-endgame.md) - [Rook pawn](https://georgelichess.com/glossary/rook-pawn.md) - [Lucena position](https://georgelichess.com/glossary/lucena-position.md) ## Guides that go further - [How to choose a chess coach](https://georgelichess.com/how-to-choose-a-chess-coach.md): What to decide first, the questions to ask, what a first lesson should show and the red flags to avoid. - [How much does chess coaching cost?](https://georgelichess.com/chess-coaching-cost.md): Published rates for private, group and subscription chess coaching, with the source and the date of each. - [The first lesson](https://georgelichess.com/book/first-lesson.md): A game review, a read on your level and a written study plan from George Li. [Book your first lesson](https://georgelichess.com/book.md) and George Li reviews your games and builds a study plan around them. Questions about lessons: write to hello@georgelichess.com. ## Related - [Long side in chess](https://georgelichess.com/glossary/long-side.md) - [Checking distance in chess](https://georgelichess.com/glossary/checking-distance.md) - [Rook endgame in chess](https://georgelichess.com/glossary/rook-endgame.md) - [Rook pawn in chess](https://georgelichess.com/glossary/rook-pawn.md) - [Lucena position in chess](https://georgelichess.com/glossary/lucena-position.md) - [Chess terms: Endgames](https://georgelichess.com/glossary/category/endgames.md) - [Chess terms glossary: plain definitions](https://georgelichess.com/glossary.md)