---
title: "Missed win in chess"
url: "https://georgelichess.com/glossary/missed-win.md"
canonical_url: "https://georgelichess.com/glossary/missed-win"
last_updated: "2026-11-07"
type: "reference"
summary: "A missed win is a game review label for a move that fails to take a clearly winning continuation, so a decisive advantage shrinks to something much smaller."
related: ["https://georgelichess.com/glossary/mistake.md", "https://georgelichess.com/glossary/blunder.md", "https://georgelichess.com/glossary/winning-chances.md", "https://georgelichess.com/glossary/game-review.md", "https://georgelichess.com/glossary/tactics-training.md", "https://georgelichess.com/glossary/category/computer-chess.md", "https://georgelichess.com/glossary.md"]
---

# Missed win in chess

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A missed win is a game review label for a move that fails to take a clearly winning continuation, so a decisive advantage shrinks to something much smaller.

A missed win is a game review label for a move that fails to take a clearly winning continuation, so a decisive advantage shrinks to something much smaller or disappears entirely.

A missed win happens when you stand clearly better, the [engine](https://georgelichess.com/glossary/chess-engine.md) sees a forcing way to convert, and you play something that lets the advantage slip. It is the mirror image of a [blunder](https://georgelichess.com/glossary/blunder.md): instead of ruining a fine position, you fail to cash in a great one. Typical causes include overlooking a strong [sacrifice](https://georgelichess.com/glossary/sacrifice.md), choosing a safe move when a sharp one worked, or relaxing once you feel ahead. Tools define the label differently, so one program may call a drop from a winning position a [mistake](https://georgelichess.com/glossary/mistake.md) and another call it a missed win. Club players meet these constantly, because the moment of maximum advantage is also the moment of overconfidence. The common error is to move quickly when winning, assuming anything will do. A good habit is to slow down exactly when the position turns favorable, look for the opponent's best defense, and prefer moves that remove [counterplay](https://georgelichess.com/glossary/counterplay.md). Reviewing your missed wins is cheap training, because the winning idea was already on the board.

Also called: missed opportunity.

It sits close to [Winning chances](https://georgelichess.com/glossary/winning-chances.md). Winning chances are an estimate of how likely each side is to win from a position, often converted from the engine's evaluation into a percentage so that the same advantage reads differently at different levels.

Computer terms such as "Missed win" are most useful next to a coach who reads your games with you, which is how a [first lesson](https://georgelichess.com/book/first-lesson.md) with George Li works.

## Related terms

- [Mistake](https://georgelichess.com/glossary/mistake.md)
- [Blunder](https://georgelichess.com/glossary/blunder.md)
- [Winning chances](https://georgelichess.com/glossary/winning-chances.md)
- [Game review](https://georgelichess.com/glossary/game-review.md)
- [Tactics training](https://georgelichess.com/glossary/tactics-training.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

- [Mistake in chess](https://georgelichess.com/glossary/mistake.md)
- [Blunder in chess](https://georgelichess.com/glossary/blunder.md)
- [Winning chances in chess](https://georgelichess.com/glossary/winning-chances.md)
- [Game review in chess](https://georgelichess.com/glossary/game-review.md)
- [Tactics training in chess](https://georgelichess.com/glossary/tactics-training.md)
- [Chess terms: Computer chess and analysis](https://georgelichess.com/glossary/category/computer-chess.md)
- [Chess terms glossary: plain definitions](https://georgelichess.com/glossary.md)