+
+ 2.1.3.1. Invitation is made
+
+ NOTICE INVITE <username1> <username2>
+
+ 2.1.3.2. Invitation is accepted
+
+ NOTICE ACCEPT <username2> <username1>
+
+ 2.1.3.3. Invitation is retracted
+
+ NOTICE RETRACT <username1> <username2>
+
+ 2.1.3.4. Invitation is declined
+
+ NOTICE DECLINE <username2> <username1>
+
+ The first username listed is the one performing the action.
+
+ 2.1.4. New games
+
+ NOTICE NEWGAME <game> <username> <username>