ChessRanger
Endgame

King-and-pawn race

A pure pawn endgame reduced to counting: whose passed pawn queens first?

When all the pieces are gone and both sides have a running passed pawn, the position often reduces to pure arithmetic: count the squares each pawn needs to promote, count who moves first, and see who queens with check (or queens a move earlier). 'The square rule' — can the defending king catch the pawn by stepping into an imaginary square drawn from the pawn to its queening square — decides many of these instantly, without needing to calculate the whole race.

The trap is forgetting that queening first doesn't always win — if the new queen can be met with check, or if the other side's pawn queens with check of its own, the race can flip in the final move.

Why it matters

A race you can count accurately is a race you can play with total confidence, right down to the exact move — no vague evaluation needed.

The mistake everyone makes

Racing pawns without checking whether either promotion arrives with check, which can completely reverse who actually wins the race.

Related terms

Passed pawn
A pawn with no enemy pawns able to block or capture it on its way to promotion.
Opposition
Kings facing each other with one square between them; the side NOT to move usually holds the advantage.
Zugzwang
A position where every legal move worsens your position — but passing is not allowed, so you must move.

See King-and-pawn race in your own games

Play the engine, train tactics, and analyse your games — ChessRanger points out these patterns as they come up so the word turns into a skill. Free to start.

Start playing