The Berlin Wall: from London 2000 to 2026
In 2000 the Berlin endgame helped decide a world championship. A quarter of a century later it is still on the board at the top level, in 4,330 master games and counting.
ChessCanvas Blog
A historical idea, the game where it mattered, and where it stands in modern master play, with dated sources for both.

In 2000 the Berlin endgame helped decide a world championship. A quarter of a century later it is still on the board at the top level, in 4,330 master games and counting.
In 1976 Efim Geller sacrificed his queen against the world champion, and Karpov saw it coming. A year later Karpov answered with a queen sacrifice of his own. Two games, verified move by move.
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