Here's what I'm proposing. Each player plays two games of Chess, Shogi
and Xiangqi in a round-robin. They're assigned a random number (privately
drawn by the organizer).
If there are nine players, it goes:
1 2 3 4 5 6 7 8 9
1 C X S s x c
2 c C X S s x
3 x c C X S s
4 s x c C X S
5 s x c C X S
6 s x c C X S
7 S s x c C X
8 X S s x c C
9 C X S s x c
(meaning that player 1 plays as White at Chess against player 2, and so
on.)
The four higher-ranked players (ex aequo players being ranked as in
GC1/GC2 Tournament) will play three extra games.
1 2 3 4
1 S C X
2 s X C
3 c x S
4 x c s
If two players have the same number of points (the round-robin doesn't
matter any more) and have drawn at Chess or Xiangqi, they play one extra
Shogi game.
Draws by mutual agreement at Shogi are not allowed. But in case a game of
Shogi takes too much time in the round robin, the referee (or a substitute
if the referee has some interest in the case) allows a draw by mutual
agreement, allows seven days to each player, or gives 0.25 to both players
or 0.5 to one player and 0 to the other (say, for being back on time and on
material after 100 moves), as he wishes.