'... a move that inflicts stalemate must be retracted, and another move played.' - Sounds reasonable. Apparently only SHOGI has a forfeit rule for illegal moves.
'The game begins with each player moving his counsellor and counsellor's pawn two squares forward...' Compare the mandatory opening moves in Courier Chess.
As for the 'the color restrictions of the elephant, now moving as a bishop' - that must be a modern rule. Alfils can be regarded as moving on an 8-color board, forever limited to either the odd-numbered ranks or the even-numbered ranks. See Leaping/Missing Bat Chess for some diagrams.
'... a move that inflicts stalemate must be retracted, and another move played.' - Sounds reasonable. Apparently only SHOGI has a forfeit rule for illegal moves.
'The game begins with each player moving his counsellor and counsellor's pawn two squares forward...' Compare the mandatory opening moves in Courier Chess.
As for the 'the color restrictions of the elephant, now moving as a bishop' - that must be a modern rule. Alfils can be regarded as moving on an 8-color board, forever limited to either the odd-numbered ranks or the even-numbered ranks. See Leaping/Missing Bat Chess for some diagrams.