Life and death status abbreviations

The following is a set of abbreviations usable in labeling the status of a life and death problem:

L: alive even if attacker plays first
D: dead even if defender plays first
LD: defender can make life - attacker can kill
LK: defender can make life - attacker can make a ko
KD: defender can make ko - attacker can kill

These do not cover all possible statuses such as approach kos, and do not provide details such as seki either.

The abbreviations are amongst others used in the pages on notchers.