Ladder escape fork

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A forking move which creates a ladder escape.

Example

In the following position, Red has no edge template.


abcdefg1234567

The only option seems to be a ladder.


abcdefg12345671324

However, pushing too much the ladder is useless, and it actually enables Blue to win.


abcdefg1234567135246

Red needs the two pieces at the top right hand-corner of the board. Red pushes the ladder just enough to use a ladder escape fork. This pivot piece threatens to connect to the top group and acts as a ladder escape as well.


abcdefg1234567132

See also

Foiling ladder escapes