Suji: Difference between revisions

'''Suji''' {{kana|筋}} is the principle of utilizing the "mahjong intervals".  This applies to the numbered suits: [[souzu]], [[pinzu]], and [[manzu]].  While these three suits are numbered 1 through 9, the numbers may be arranged in a square fashion to determine the "intervals".  The purpose is to deduce and/or determine tiles waiting via [[ryanmen|open]] [[machi|waits]].  The intervals themselves are based on the three-tile [[shuntsu|sequential groupings]]. Tiles along the intervals mark needed tiles to complete particular sequences.  Reading the numbers to the right across, the three main intervals are 1-4-7, 2-5-8, and 3-6-9.  Naturally, numbers within each interval can be paired such as 1-4 and 2-5.