Taxonomy of Domino Games, Solitaires and Puzzles
Joes Celko contributed a chapter on the taxonomy for domino games, solitaires and puzzles in 2001. He wrote "I needed an orderly system for putting games, solitaires and puzzles into chapters for a projected book in a fashion which would make sense. But a taxonomy also suggests new possibilities, by allowing you to ask, 'what if' questions in the options chosen in an old game, or puzzle."
By 2020 the collection of domino games at pagat.com had been considerably enlarged, a new set of index pages was introduced, largely based on Joe Celko's classification, and the sections of this chapter were explanded and migrated to other pages.
Meld and Combination Games
Now subdivided into
Certain combinations of tiles score points, without any concept of connecting the tiles. These are games derived from card games like rummy, poker or blackjack. Many of the Chinese games are in this family and the king of these Asian tile games is Mah Jong [not itself a domino game but a game using Chinese money cards in tile form].
The nice part about having a miscellaneous category is that you have the feeling you have covered and classified everything.