Can we provide a listing of what board games or card games are played by full-time professionals? I define such a professional as someone whose income arises primarily from competing and winning events (against other competitive players, rather than against a stable benchmark like a casino for example) and/or teaching (so, for example, a full-time coach who hardly ever plays competitively still counts). There don't need to be many - if it's possible to confirm even one such full-time professional that is enough to mention the board game or card game.
So far I am aware of:
And possibly Shogi, Xiangqi, and Bridge, though confirmation on these would be valuable. Can anyone add to this list?
EDIT: Since this question has been reopened I will offer some further thoughts that I felt evolved from our discussion. They could be useless to someone who has already researched this and knows better:
- We should not need to look far for these games; they are likely to have been in the public eye for decades at a minimum. Of the established examples of games sustaining full-time professionals, from chess/Go to Magic: The Gathering, every game has done so for at least 25 years now. Since full-time professional players undertake considerable risk, they would not likely commit themselves to a game without strong pedigree. (Counter-examples always welcome)
- I will venture - from very limited experience - a list of games which seem vaguely plausible for which I'm curious whether they have full-time professionals, as a starting point for someone who doesn't feel confident to answer because they suspect they will be missing some category or the other (e.g. Asian board-games) but might know about these particular games:
(Card games with standard decks:) Whist, Rummy (versions?), Hearts, Spades, Euchre, Cribbage, Skat, ... (Abstract games:) Checkers/draughts, backgammon, Othello/Reversi, ...
Obviously an extremely incomplete list but maybe a few possibilities that occurred to me to start brainstorming. There may be some other board games (I just don't know enough about the field to even know any names besides maybe Monopoly, Scrabble, Risk) and of course whole fields I'm ignorant of, like how trading card games produced a new positive example in MTG (see answers below).