[ctchocula]

Article is a bit misleading, because they mention former world champion Tigran Petrosian who passed away in 1984, and quote his son the 29-year-old grandmaster Tigran Petrosian.

[auctiontheory]

Tigran L. Petrosian (the younger) is no relation of Tigran V. Petrosian (the late world champion).

[gnuvince]

Not his son [1].

[1] http://en.wikipedia.org/wiki/Tigran_L._Petrosian