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CHESS GLOSSARY / OPENINGS

Opening

The opening is the initial phase of a chess game, when players establish pawn structures, develop pieces, and address king safety.

Opening chess term — branded learning card

Opening: a practical example

After 1.e4 e5 2.Nf3 Nc6, White can choose different setups with different plans. Memorizing one continuation helps only when you understand what to do if Black changes the move order or chooses a sound alternative.

How to use the idea in your games

Study the purpose of each move and a few typical middlegames. A short, understood repertoire is usually more useful for a learner than an enormous collection of unexplained variations.

A useful study question

Can you explain opening in your own words, identify it in a position, and describe when the idea does not apply? Test the explanation on a legal board before relying on it.

Connect the ideas

Opening repertoire, Development, Transposition are useful next concepts. Follow the links to compare definitions and examples, then return to the complete chess glossary whenever an unfamiliar term appears.

Sources & further reading

References checked September 5, 2026. Linked services are independent of ChessRankings.com™.