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Curiosities · 2026-05-11

Playing Without Seeing: The Astonishing Art of Blindfold Chess

Some masters can play dozens of games at once without looking at a single board — and one did it for the most human of reasons.

Holding one chess position in your head is hard enough. Now imagine holding dozens at once, calling out moves without ever seeing a board. Blindfold chess is one of the most astonishing demonstrations of what the trained mind can do.

Forty-five games, no board

In 1947, in São Paulo, the Polish-Argentine grandmaster Miguel Najdorf played 45 games simultaneously while blindfolded, sitting in a separate room as moves were relayed by microphone. He scored an overwhelming 39 wins, 4 draws and 2 losses over more than 23 hours. It built on his earlier feat of 40 blindfold games in 1943.

How is it even possible? Through the same pattern-based memory that powers all chess mastery: experts don't picture 45 photographic boards, they track each game as a structure of meaningful chunks, updated move by move.

The reason behind the record

Najdorf's feat carries a heartbreaking subtext. A Polish Jew stranded in Argentina when the Second World War broke out, he lost his entire family in the Holocaust. He later said he attempted his record displays partly in the desperate hope that surviving relatives somewhere in the world would read about the man playing 45 games blindfolded — and find him. None did.

It is a reminder that behind even the most abstract feats of skill there is often a deeply human story.

In short: In 1947 Miguel Najdorf played 45 simultaneous games blindfolded over 23+ hours — a feat of pattern-based memory he reportedly attempted hoping relatives lost in the Holocaust might read of it and find him.

Frequently asked questions

What is blindfold chess?

Playing without sight of the board, holding the position entirely in memory and calling out moves in notation. Strong players can do it, and some play many games at once this way.

How many blindfold games can a master play at once?

Miguel Najdorf played 45 simultaneous blindfold games in 1947; the feat relies on pattern-based memory rather than picturing each board photographically. Records have since gone even higher.

Why did Najdorf attempt his blindfold record?

Najdorf, who lost his family in the Holocaust, said he hoped that news of a man playing 45 games blindfolded might reach surviving relatives and help them find him.

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A curiosity from History's Gambit, where chess meets history. You may cite or describe it with attribution to historysgambit.com.