Single Comment

I think a two phase event such as described below, might work well:

Phase A: Consists of Chess Event, Xianqi Event, and Shogi Event.
A player could play in any one, any 2, or all 3.*
Each game event gets a single winner who holds that title.

Phase B: is a three player round Robin from the winners of Phase A.

Note 1: If Player #x won all 3 events in phase A, phase B is not played.
Note 2: If Player #x won 2 of the 3 events in Phase A, then he or she is
the overall champ and Phase B is not played.
Note 3: If players x, y, and z are independent champs, then Phase B is
played for the overall title.

*Playing in one event gives you a chance to win that game title, but is
risky due to note 2; because another player might have won 2 events;
thereby not giving you a chance of the overal title.