Sotogawa: Difference between revisions
(a lot of the info was already covered in matagi suji, but i didn't want to put sotogawa in the same page as matagi suji. feel free to merge this page with matagi suji if it would fit) |
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'''Sotogawa''' (lit. outside) | '''Sotogawa''' tiles (lit. outside tiles) are tiles that are further away from 5 than a discarded number tile. When an opponent discards a number tile early, same-suit tiles towards the outside become safer against that opponent. For example, if 3-pin is discarded early, then 1-pin and 2-pin become safer due to sotogawa. | ||
This theory only applies to tiles up to +/- 2 away from the discarded tile. Tiles that are 3 away are [[suji]]. Tiles that are 4 away are not affected by sotogawa, and possibly become more dangerous due to [[Suji#Ura suji| | This theory only applies to tiles up to +/- 2 away from the discarded tile. Tiles that are 3 away are [[suji]]. Tiles that are 4 away are not affected by sotogawa, and possibly become more dangerous due to [[Suji#Ura suji|ura suji]]. In addition, it only works on an opponent's early discards. | ||
==Theory== | ==Theory== | ||
Assuming you are playing against experienced players, sotogawa is a bit less safe than [[suji]], but still on a comparable level to suji. A tile that is affected by both sotogawa and suji (e.g. a 2 after both 3 and 5 are discarded) is safer than a tile that is one or the other. | Assuming you are playing against experienced players, sotogawa is a bit less safe than [[suji]], but still on a comparable level to suji. A tile that is affected by both sotogawa and suji (e.g. a 2 after both 3 and 5 are discarded) is safer than a tile that is one or the other. | ||
The concept of [[matagi suji]] is the main reason why sotogawa is effective. Matagi suji states that an opponent is less likely to cut a 3 from "233" or "344". So, if they cut a 3, it is less likely for them to have "23" (waiting on 1-4) or "34" (2-5) remaining; this makes 1-4 and 2-5 safer. Of those, 1 and 2 are | The concept of [[matagi suji]] is the main reason why sotogawa is effective. Matagi suji states that an opponent is less likely to cut a 3 from "233" or "344". So, if they cut a 3, it is less likely for them to have "23" (waiting on 1-4) or "34" (waiting on 2-5) remaining; this makes 1-4 and 2-5 safer. Of those, 1 and 2 are safe "sotogawa" tiles, while 4 and 5 are not safe as an opponent could still have a "56" or "67" [[ryanmen]]. Thus if 3 is discarded, 1 and 2 are safer. | ||
Generally, "early discards" are the first six discards of the game. If a player declares riichi early, then the sotogawa of the riichi declaration tile become more dangerous instead of less dangerous. | Generally, "early discards" are the first six discards of the game. If a player declares riichi early, then the sotogawa of the riichi declaration tile become more dangerous instead of less dangerous. | ||
Sotogawa is less effective against new players, since this theory relies on players having strong [[tile efficiency]]. | Sotogawa is less effective against new players, since this theory relies on players having strong [[tile efficiency]]. | ||
==External links== | |||
{{Navbox strategy}} | |||
[[Category:Strategy]] | |||
Latest revision as of 20:05, 16 October 2024
Sotogawa tiles (lit. outside tiles) are tiles that are further away from 5 than a discarded number tile. When an opponent discards a number tile early, same-suit tiles towards the outside become safer against that opponent. For example, if 3-pin is discarded early, then 1-pin and 2-pin become safer due to sotogawa.
This theory only applies to tiles up to +/- 2 away from the discarded tile. Tiles that are 3 away are suji. Tiles that are 4 away are not affected by sotogawa, and possibly become more dangerous due to ura suji. In addition, it only works on an opponent's early discards.
Theory
Assuming you are playing against experienced players, sotogawa is a bit less safe than suji, but still on a comparable level to suji. A tile that is affected by both sotogawa and suji (e.g. a 2 after both 3 and 5 are discarded) is safer than a tile that is one or the other.
The concept of matagi suji is the main reason why sotogawa is effective. Matagi suji states that an opponent is less likely to cut a 3 from "233" or "344". So, if they cut a 3, it is less likely for them to have "23" (waiting on 1-4) or "34" (waiting on 2-5) remaining; this makes 1-4 and 2-5 safer. Of those, 1 and 2 are safe "sotogawa" tiles, while 4 and 5 are not safe as an opponent could still have a "56" or "67" ryanmen. Thus if 3 is discarded, 1 and 2 are safer.
Generally, "early discards" are the first six discards of the game. If a player declares riichi early, then the sotogawa of the riichi declaration tile become more dangerous instead of less dangerous.
Sotogawa is less effective against new players, since this theory relies on players having strong tile efficiency.
External links
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