Discussion from Facebook
Someone asked about the case of a double ron, where one player committed a chombo (such as invalid hand). It was mentioned, that the hand awards the valid hand the points; and the game continues on, without invoking chombo. Apparently, a source is pointed here: http://ja.wikipedia.org/wiki/麻雀の反則行為 KyuuAA (Talk:キュウ) 11:06, 24 May 2015 (UTC)