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Suji: Difference between revisions
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*Early discarded {{#mjt:5p}} makes {{#mjt:14p}} and {{#mjt:69p}} more dangerous. | *Early discarded {{#mjt:5p}} makes {{#mjt:14p}} and {{#mjt:69p}} more dangerous. | ||
( | (Early discarded 1/2/8/9 tiles are not particularly noteworthy, since these tiles are often discarded early anyways.) | ||
In the modern day, ura suji is often disregarded. It is true that, if an opponent discards a 5-pin early, then a non-suji 4-pin is at least somewhat more dangerous than normal. However, a non-suji 4-man, 5-man, 4-sou, etc. would also be dangerous tiles. Therefore, knowing about ura suji would not change your behavior. | In the modern day, ura suji is often disregarded. It is true that, if an opponent discards a 5-pin early, then a non-suji 4-pin is at least somewhat more dangerous than normal. However, a non-suji 4-man, 5-man, 4-sou, etc. would also be dangerous tiles. Therefore, knowing about ura suji would not change your behavior. | ||
*If you were folding, you would not discard any non-safe non-suji tiles unless you had to. Even if you did, you wouldn't discard a middle tile if you could avoid it. | *If you were folding, you would not discard any non-safe non-suji tiles unless you had to. Even if you did, you wouldn't discard a middle tile if you could avoid it. | ||
*If you were attacking, you would discard ura suji anyways, because an ura suji is not | *If you were attacking, you would discard ura suji anyways, because an ura suji is not so much more dangerous than a regular non-suji tile. | ||
*In addition, ura suji theory assumes your opponent is going for maximum [[tile efficiency]]. If an opponent had sacrificed efficiency for points, it doesn't work. | |||
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 completed the 23 sequence 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. | ||