I remember writing this example and being mesmerized watching the games progress. I think I made an alternate version that speed up the time and opened a handful of browser tabs to watch the games. Most of them do end up in insufficient piece draws or the 50-move rule.
Glad to see others are enjoying it :)
I also made an alternate version which runs faster, and I added some code to count games. About an hour on Chrome got me to this point:
44 white wins.
415 ties.
41 black wins.
500 games played.
74 white wins.
847 ties.
79 black wins.
1000 games played.I would expect that white/black position would be very similar in results (for random games only, of course).