In the game I played against cdlee today at 5:43pm, the system incorrectly marked 6-7 stones in the corner and along the side as seki, and the 8 points of territory they surrounded as dame. It was on a 15x15 board but w's stones were exactly like this (the "seki" was the upper right stones):
http://ps.waltheri.net/719929
It's not clear why this …