Hmmm... so many to pick from.
The no call no show.
The "**** initiative, whoever screams out first goes first, right?" (IMO, the GM deserves at least as much blame as the player in this scenario).
The metagamer.
The "I'ma bookmark this page by bending the corner of your book, 'K?" Related to the "I'ma use your book as a writing desk" and "I'ma use your book as a plate".
Alignment.
People who don't understand that "alignment" and "personality" are not synonyms.
DMs who feel the need to change your alignment (esp over a single incident).
The people who would rather have to retcon an entire session than look up a rules question when it first appears.
The veteran noob.
The rules lawyer who knows he's wrong, and is just hoping for a favorable ruling from an ignorant GM. Happily, whenever I've noticed this happening, it was under GMs who took the time to look up the rules.
The nerf bat.
GMs who believe in nerfing the strong, but have no interest in empowering the weak.
Intolerant people.
The PvP player, especially when coupled with the player who can't differentiate IC & OOC.
Alignment.
I'm sure I could come up with lots more...
I don't think I could play with people like that. At least, not and take them seriously. Not without totally abusing the lack of rules.
My signature character, for whom this account is named, is a tactically inept god wizard. His lack of tactical mindset prevents him from overshadowing the party. Happily, I believe I have never played Quertus with a Chess Master in the party - at least, not one who viewed Quertus as one of his pieces. I often play as... odd man out... in group tactics; the Chess Masters I remember playing with Quertus encouraged him to be the unpredictable portion of the party's plan. Although I have had tactically inept players try to order Quertus around, in ways that would make the encounter noticably harder - which is quite a feat, given that Quertus' signature actions are to read from a book or make a sketch.
So, yeah, I'm not sure how having a real Chess Master making Quertus live up to his potential would turn out, but I doubt it would be fun for the party.