There is one more way to draw a game according to FIDE rules: the 50 move rule. I think you missed it :)

It's interesting content. Speaking of etiquette, good curation on Hive also has its etiquette. To improve your post and your ratings, consider adding the sources you used. Apparently, there's a Jeremy Silman quote in your post, but it's not clear which part is the quote and which part is your content. I also noticed that some of the images are present on other websites. Consider giving credit where credit is due.