Empty Triangle is a great go comics by chidori.
My personal favorites are number 4 (I love it), 6 (how very true), 7 (touching), 8 (love the facial expression), 10 (hey, it’s actually me), 14 (the art in there is just great).
In my humble opinion, Empty Triangle beats all the other go comics (and I’ve seen them all, some of them (such as Almost Sente) are actually pretty good).
By the way, I’ve been to Visegrad tournament (no link to the results, not worth it :S) and master chidori herself drew a great picture on my fan. I am very grateful to her. :)