variations may also impose penalties for discards that are considered to be "high-risk" when the size of the wall is winding down. If a player wins from a high-risk discard, or goes out self-drawn after claiming a high-risk discard, the player(s) who made the high-risk discard(s) have to pay for the winner's points, and the other players are off the hook. A discard is considered risky if there were enough open melds to reveal the fact that said discard is very likely to enable completing a limit hand before it was claimed. Note that some rulesets always make the discarder pay anyway. In this case, going out self-drawn after claiming a risky discard will trigger the penalty. The intent of these rules is to punish the player who foolishly enabled the completion of the limit hand. References External links How to play mahjong Mahjong