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Expert Advice
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Ladder
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The diagram above is an example of ladder . By playing black seed 1 , white cannot escape even if he play white seed 2 as can be shown in the diagram.
To achieve ladder , black must ensure that the opponent does not have any stone in its path . In
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, the marked stone lies in the path of the ladder , so white can escape with seed 1 in
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. If Black pursues him by playing seeds 2, 4 and 6 , white links up to his marked stone with 7 ; next he can play double atari at the marked area .
However , there are some cases that even when opposing stone lies in the path of ladder , the ladder can still work without flaw as can be shown in
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and
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.gif) .
Notice that the marked stone does not help in linking up to the group of white stone and that black play seed 8 instead of seed 9 which is the usual way of ladder .
test yourself: ladder
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