--- title: "Opponent preparation in chess" url: "https://georgelichess.com/glossary/opponent-preparation.md" canonical_url: "https://georgelichess.com/glossary/opponent-preparation" last_updated: "2026-11-07" type: "reference" summary: "Opponent preparation is the work of studying a known opponent's past games and habits before a round so you can choose openings and plans." related: ["https://georgelichess.com/glossary/opening-preparation.md", "https://georgelichess.com/glossary/opening-repertoire.md", "https://georgelichess.com/glossary/repertoire-building.md", "https://georgelichess.com/glossary/pre-game-routine.md", "https://georgelichess.com/glossary/novelty.md", "https://georgelichess.com/glossary/sideline.md", "https://georgelichess.com/glossary/category/training-psychology.md", "https://georgelichess.com/glossary.md"] --- # Opponent preparation 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. Opponent preparation is the work of studying a known opponent's past games and habits before a round so you can choose openings and plans. Opponent preparation is the work of studying a known opponent's past games and habits before a round so you can choose openings and plans that steer the game toward positions where they are less comfortable. When you know who you will face, a little research can pay off. Look through the opponent's recent games in a [database](https://georgelichess.com/glossary/database.md) or on a public site. Note which [openings](https://georgelichess.com/glossary/opening.md) they play with each color, how they handle certain structures, and whether they tend to collapse under time pressure or play too quickly. The aim is not to memorize everything but to make one or two practical decisions. Perhaps they always play the same line against the first move you favor, so you can prepare a [sideline](https://georgelichess.com/glossary/sideline.md). Perhaps they avoid [endgames](https://georgelichess.com/glossary/endgame.md), so you steer toward [simplification](https://georgelichess.com/glossary/simplification.md). Prepare a position where you understand the plans, not a deep trap you barely remember. A common mistake is over-preparing. Players spend hours on an unfamiliar opening, then forget the line at move eight and play a worse game than usual. Keep your preparation inside your own [repertoire](https://georgelichess.com/glossary/opening-repertoire.md) whenever possible. Another mistake is assuming the opponent will repeat old choices. Players change, so have a fallback. Spend most of your preparation time on your own strengths, and treat the opponent research as a small adjustment on top of a sound routine. Also called: preparing for an opponent. Compare it with [Repertoire building](https://georgelichess.com/glossary/repertoire-building.md). Repertoire building is the process of choosing a small set of openings that suit your style and then learning their ideas, typical plans and key lines well enough to play them confidently. Compare it with [Opening preparation](https://georgelichess.com/glossary/opening-preparation.md). Opening preparation is the work done before a game to know your chosen lines well, including studying your own repertoire and checking the likely choices of a specific opponent. It sits close to [Pre-game routine](https://georgelichess.com/glossary/pre-game-routine.md). A pre-game routine is a short, repeatable set of habits before a round, covering food, rest, light warm-up and a calm mindset, that helps you start the game alert and ready to think clearly. Habits like "Opponent preparation" stick when someone checks them against your games. A [first lesson](https://georgelichess.com/book/first-lesson.md) with George Li ends in a written plan and homework for the weeks after. ## Related terms - [Opening preparation](https://georgelichess.com/glossary/opening-preparation.md) - [Opening repertoire](https://georgelichess.com/glossary/opening-repertoire.md) - [Repertoire building](https://georgelichess.com/glossary/repertoire-building.md) - [Pre-game routine](https://georgelichess.com/glossary/pre-game-routine.md) - [Novelty](https://georgelichess.com/glossary/novelty.md) - [Sideline](https://georgelichess.com/glossary/sideline.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 - [Opening preparation in chess](https://georgelichess.com/glossary/opening-preparation.md) - [Opening repertoire in chess](https://georgelichess.com/glossary/opening-repertoire.md) - [Repertoire building in chess](https://georgelichess.com/glossary/repertoire-building.md) - [Pre-game routine in chess](https://georgelichess.com/glossary/pre-game-routine.md) - [Novelty in chess](https://georgelichess.com/glossary/novelty.md) - [Sideline in chess](https://georgelichess.com/glossary/sideline.md) - [Chess terms: Training and psychology](https://georgelichess.com/glossary/category/training-psychology.md) - [Chess terms glossary: plain definitions](https://georgelichess.com/glossary.md)