- 2.1.3. Game Invitation
- 2.1.3.1. NOTICE INVITE <username1> <username2>
- 2.1.3.2. NOTICE ACCEPT <usernmae2> <username1>
- 2.1.3.3. NOTICE RETRACT <username1> <username2>
- 2.1.3.4. NOTICE DECLINE <username2> <username1>
+✓ 2.1.3. Game Invitation
+✓ 2.1.3.1. NOTICE INVITE <username1> <username2>
+✓ 2.1.3.2. NOTICE ACCEPT <username2> <username1>
+✓ 2.1.3.3. NOTICE RETRACT <username1> <username2>
+✓ 2.1.3.4. NOTICE DECLINE <username2> <username1>