Mikhail Tal at the Leningrad Interzonal, 1973.

During the years 1972-1974, Mikhail Tal famously embarked on two very long series of unbeaten games, which are among the longest ever recorded.  However, between these two unbeaten runs he suffered something of a collapse in form, in a period that crucially included the FIDE Interzonal Tournament held in Leningrad.  As so often in Tal's…

Soviet chess hi-res stock photography and images - Alamy

Tal's last game

Miroslav Filip vs Mikhail Tal 1973

Szabó-Tal (Moscow, 1963) with annotations by Tal.

The Leningrad Interzonal, 1973.

Chessmetrics Summary for 1973-1974

Misha Tal: The fall of the eagle

Mikhail Tal

Grandmaster Chess Mistakes –