defence · recognise → explain → apply

Test a fortress by searching for pawn breaks

The position looks closed and the attacker appears unable to enter.

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

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Notes and replay positions are saved. Practice games are temporary; export their PGN to keep them.

Choose an example

Aronian,L – Vachier Lagrave,M

4th Norway Chess 2016 · 2016.04.24 · 1/2-1/2

38... Bb4 · White to move

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What to notice at 38... Bb4

The final drawn position is a fortress-testing exercise, explicitly not a claim of tablebase-proven immobility.

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 should you test in this closed two-bishop ending?

Explain it in your own words before revealing.

Make it memorable

A fortress needs a proof of its doors.

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 — The Theory of Steinitz ↗