In this case, it's actually one move away from being seki, which is still seki. If either the white group at K3 or the black group at K4 place a stone on their shared liberties, no further stones can be placed by either color.Since all surrounding groups are stable (or very likely to be) this would be seki.
(hide) If all of a sudden the site shows up in a different language, just click the flag for your language and it will be back to normal. (pauloaguia) (show all tips)