>>6
I think the variations with bigger boards or more pieces are just delaying the real problem, which is opening theory.
If you want to a more complex game (something a machine can“t excel) we have Shogi and Go http://8ch.net/chess/res/43.html.
And for solving opening theory problem we already have 960 Chess (Fischer Chess), without changing board size nor pieces.
Anyway, Omega looks majestic and I would like to play some more games some day.
Could someone recommend sites to play or solving problems?