Longest Ladder Problem

  Difficulty: Advanced   Keywords: Life & Death, Problem

The following problem called "Labyrinth" was created by Ralf Gering (at this time 5 Kyu) in 1984 and published in the Deutsche Go-Zeitung. Ralf also invented Electric Go.

The difficulty is to make the capturing sequence at least 300 moves long.

[Diagram]

Black to play. Can he save his marked stone?

The solution, which looks more like a spiral than a ladder, takes 314 moves.

/Solution

[Diagram]

Black to play. Can he save his marked stone?

Another spiral ladder setup


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