defence · recognise → explain → apply

Restrain a queenside expansion with an edge pawn

The opponent wants to gain space with a b-pawn advance.

Explanation styleChoose any style. Age is not playing strength; no birth date is needed.

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Choose an example

Caruana,F – Carlsen,M

chess.com SpeedChess 2025 · 2025.11.14 · 1/2-1/2

10... a5 · White to move

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What to notice at 10... a5

The next move is a4. This is restraint and structural commitment, not a promise that the a-pawn itself wins anything.

A legally replayed historical example, not a claim that every move is best. A game’s result does not prove every defensive position was lost or drawn.

Game source ↗

Your thinking first

Name the signal, choose a plan, and test the opponent’s most challenging response.

What do you notice?What is your plan, and why?How could the opponent resist?

Recall and explain

1. What queenside question does 10...a5 ask?

Explain it in your own words before revealing.

Make it memorable

A small edge move can slow a large plan.

Teach this to a friend in one minute. Then return to a different example and look for the same signal without being told its name.

Reflect and revisit

This is your self-assessment, not an engine grade or a promise of mastery.

Connect the ideas

Sources and further reading

Original GolgiChess teaching and game analysis. Topic references are credited below; no affiliation or endorsement is implied.

Exeter Chess Club — Pawn mobility ↗