MCR FAN DETAILS
There are 81 different scoring elements (aka fan's pinyin: 番) known to the Mahjong Competition Rules (aka Chinese Official) worldwide standards. The standards are described in the MCR Greenbook (pdf format) and outlined here, not only describing them in detail but also with various samples and context. For your convenience we have several groupings, the first by type, the second by element number (descending), thirdly by score amount, which ever suits you best.
Chow based (combinations)
Pung (or Kong) based combinations
11 All Honors (64)
One or more kong combinations may score extra points.
These hands score points because hand has special characteristics that will score extra points.
These combinations are special in a sense that the combinations or hands are not formed by regular chow, pung, kong and pair combinations.
The last tile drawn / claimed may score additional points
If you are waiting for that one unique tile that may score extra points.