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Defense: Difference between revisions
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{{main|Suji}} | {{main|Suji}} | ||
'''Suji''' focuses on taking advantage of the furiten rule | '''Suji''' focuses on taking advantage of the furiten rule and the most common type of wait. | ||
It is important to note that the middle tiles (4, 5, 6) require two tiles to be considered true suji. | A [[ryanmen]] wait, a two-sided wait to complete a sequence (e.g. {23} waiting for 1 or 4), is the most common wait in the game, appearing in ~50% of all hands. A ryanmen always waits on tiles that are 3 numbers apart, such as 1-4 or 4-7. | ||
Therefore, when a tile is safe, the other tiles that are 3 apart become safer. For instance, if a player has discarded 4-pin, the 1-pin and 7-pin become safer against that player. Neither 1 or 7 is perfectly safe, however. These intervals of 3 are called "suji intervals". | |||
It is important to note that the middle tiles (4, 5, 6) require two tiles to be considered true suji. The 4 is part of two suji intervals: 1-4 and 4-7. If a 1 is discarded, a player could still have a 4-7 open wait. The 4 is only full suji if ''both'' 1 and 7 are safe. | |||
Some suji are safer than others: | Some suji are safer than others: | ||