ok i have updated this game, in shatranjelephants variant, the
'RollingElephant', 'ButterflyElephant' and 'DrunkElephant' were not
always promoting when they should of.
'DrunkElephant' still may not always promote, i guess i named that piece
pretty well :)
also in 'chaturanga' variant, i reduced generals from 4 per side to 2
per side, for snappier play.