With regards to open and closed rules for yaku requirements, do the rules for certain hands require for the entire hand to be closed or only the meld. For example since an iipekou needs to be closed, does this refer to the entire hand or just the two same consecutive melds. I figure the former is tr...

Hello I have a pretty simple question I'm not sure about. I just started learning this awesome game. :) So my question is: if I meet yaku requirement and I'm in tenpai with a ryanmen wait. Can I declare Ron from anybody or does it have to be from the Kami cha (person to the left)? Since I know chi c...