Suji: Difference between revisions

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In addition, ura suji theory assumes your opponent is going for maximum [[tile efficiency]].  
In addition, ura suji theory assumes your opponent is going for maximum [[tile efficiency]].  


The reason ura suji is not that much more dangerous than normal is because it assumes a (35) kanchan had existed in the first place. The 5-pin could have been an unrelated tile, or it could have been part of a 57 kanchan, or part of a completed 556 shape, or part of a completed 135 shape, etc. Even if the kanchan did exist, an opponent could have drew a 2 before reaching tenpai.
The reason ura suji is not that much more dangerous than normal is because it assumes a (35) kanchan had existed in the first place. The 5-pin could have been an unrelated tile, or it could have been part of a 57 kanchan, or part of a completed 556 shape, or part of a completed 135 shape, etc. Even if the kanchan did exist, an opponent could have completed the 23 sequence before reaching tenpai.


== References ==
== References ==
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