thumb|left|The matching pair of eights (Yun, left) is worth more than the non-matching pair of eights (Chop Bot, right). Only the sixteen named pairs are valid. For example, if a hand contained a Yun (4-4) and a Chop Bot (3-5 or 2-6), these would not form a pair at all, despite both tiles having eight pips each. A Yun (4-4) exclusively pairs with the other Yun, and likewise only the two Chop Bot tiles can be paired together. Likewise, tiles with six pips (Look, 1-5, pairs with another Look, not the Gee Joon 2-4) and seven pips (Tit, 1-6, pairs with another Tit, not the two Chop Chit tiles 2-5 and 3-4, which pair with each other) are subject to the same pairing restrictions.
thumb|left|the matching pair of eights (yun left) is worth more than the non-matching pair of eights (chop bot right) only the sixteen named pairs are valid for example if a hand contained a yun (4-4) and a chop bot (3-5 or 2-6) these would not form a pair at all despite both tiles having eight pips each a yun (4-4) exclusively pairs with the other yun and likewise only the two chop bot tiles can be paired together likewise tiles with six pips (look 1-5 pairs with another look not the gee joon 2-4) and seven pips (tit 1-6 pairs with another tit not the two chop chit tiles 2-5 and 3-4 which pair with each other) are subject to the same pairing restrictions