Seki or not?

[yebellz]

Technically, yes. However, I think most players would simply accept that stone as dead without the formality of capturing it.

Odd Cases in the Japanese Rules

Compulsory Capture of Dead Stones In most situations, the Japanese rules compel players to pass before capturing all strategically dead stones, since playing additional moves to actually remove dead stones would reduce one’s points under territory scoring. For example, consider the following position. [dead%20stone] In this corner, black has 4 points (3 from territory plus 1 for the white prisoner). However, if black were to play an additional move here (at the end of the game, when they shou…