Single Comment

The rules for Chessgi and Eurasian Chess have been programmed into the new
presets. So, even if you were unsure of the rules, you couldn't move
illegally. Michael Howe gave you an accurate answer for Chessgi. In
Eurasian Chess, the rule is that a Pawn may not check a King unless it can
promote. 

I originally based the promotion rules in Eurasian Chess on those in Grand
Chess, and in programming both games in the same timeframe, I came to
notice some disparities between them that I hadn't paid attention to
before. In particular, in Grand Chess, a Pawn may check the King even if
it can't promote. I'm considering changing the rules of Eurasian Chess
to more exactly match the promotion rules of Grand Chess, including
allowing optional promotion on the eighth and ninth ranks, but I'll let
this tournament be a trial run with the original promotion rules of
Eurasian Chess.

As for Maxima, Roberto Lavieri can answer your questions.