十三么

I had 9 tiles at the start. And this was the closest I've ever gotten to a 十三么. I was already super high when i was waiting for jiu wan or yi suo, and was preparing to ask david to prepare to take a photo of me with my winning tiles... :p Anyway, I thought that I was able to win if anybody threw out yi suo. But david's dad corrected me or rather us, that, I could only win if i got that tile by myself. It turned out that, this situation is like " a kah long in ping hu or chou ping hu kind of tiles". So, only if i have all thirteen different tiles in my hand, then I am able to win if any of the tiles are thrown out.