2.1.3.3. NOTICE RETRACT <username1> <username2>
2.1.3.4. NOTICE DECLINE <username2> <username1>
2.1.4. NOTICE NEWGAME <game> <username> <username>
2.1.3.3. NOTICE RETRACT <username1> <username2>
2.1.3.4. NOTICE DECLINE <username2> <username1>
2.1.4. NOTICE NEWGAME <game> <username> <username>