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Small Monkey Jump
  Difficulty: Advanced   Keywords: EndGame

[Diagram]
Small monkey jump

For example W1 here, played as an early endgame play, is a small monkey jump. It is more frequent in pro play in this particular corner formation than the ordinary monkey jump to a.

Theorists have worked on comparisons of the small monkey jump and monkey jump from the point of view of exact counting. In what could be termed typical positions, the small monkey jump doesn't gain an advantage in points.

Nevertheless it is played often in pro games, for reasons particular to the context.


[Diagram]
Monkey jump need not be sente

In this case W5 might not be sente: the cut at c is usually worth a little more than five points (deiri), so that Black may not protect.


[Diagram]
Small monkey jump follow-up

Here if Black doesn't answer (at W1), W1 is a big endgame play.

Charles Matthews



Bill: Assuming secure black territory on the left side and secure white territory on the top side, it looks like a very close call. (I calculate 1/8 point miai in favor of the small monkey jump, but variations in the surroundings could make a difference, and it would have been easy to make a mistake of that amount in the calculations.)



This is a copy of the living page "Small Monkey Jump" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.