Soo, pretty cool to see a rebuilt game of one of the early rule sets for this. I got bright pink square graphical glitches I am guessing int he background, and some of my pieces were hidden behind the dive banner thus not able to select them.
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So your rules are pretty far off from the rules we know of today. Even when you first published this we translated some betting rules to know what the game play was like. Otherwise not bad at all, if you want to look into this the British museum has videos on it specifically some with Tom Scott a youtuber.