"Rule #1. It’s forbidden to tell the rules of Mao.
Rule #2. There are two exceptions to rule #1, which are rule #1 and rule #2."
This is how Mao was introduced to me. Very fun game
(Actually I watched an ongoing game of Mao before I joined the party and started playing. As I was watching the game I understood a rule and said it out loud, not knowing I wasn’t supposed to say the rules. This, of course, granted me a penalty at the beginning of my first game.)
"Rule #1. It’s forbidden to tell the rules of Mao.
Rule #2. There are two exceptions to rule #1, which are rule #1 and rule #2."
This is how Mao was introduced to me. Very fun game
(Actually I watched an ongoing game of Mao before I joined the party and started playing. As I was watching the game I understood a rule and said it out loud, not knowing I wasn’t supposed to say the rules. This, of course, granted me a penalty at the beginning of my first game.)
Ours was “the only rule i can tell you is this one” but usually people did need more context. I prefer yours.