Forum:Search Deck Ruling

I posted this somewhere on this wiki (assuming it was the community), but I'm a little unfamiliar with posting and am unable to reply to any responses to my previous post. As such, I'm guessing I posted in the wrong spot and to the person who replied, I apologize for that, and thank you for your response.

Via Copy and Paste, this is my post (plus response)

"Reference here: http://forum.yugico.com/yaf_postsm14962_Jinzo-Returner--time-activation-vs-Future-fusion--outside-intervention-live-on-PPV.aspx#14962

Having a discussion as you can read above, I referenced that under circumstances such as Sangan, Nobleman of Crossout, Gravekeeper's Spy, etc. where you must search your deck... if you cannot search for any targets required as listed by an effect, you must show your deck to your opponent to verify this.

I've known this ruling since 2006-2008, and as mentioned in the above link, I was told that there was a ruling change since the 2009 US nationals. I cannot find any online sources confirming this, so can anybody confirm this?

Supposedly, this ruling change means you just state that you cannot find a target for the effect, and your opponent cannot see your deck/hand/whatever is in question. Is this true or rubbish? If this true, a lot of wiki pages need to be corrected.

Here is said statement in question (as shown in the above link):

"you are incorrect in saying that you must show your deck to your opponent if you have no search target when cards like sangan activate. all you have to do is tell your opponent that you have no target for the effect. the only components of the game that are public knowledge are the graveyard, remove from game pile, and whatever cards are face up on the field. there are no circumstances where your opponent is allowed to see any facedown cards on the field, any cards in your hand, or any cards in your deck, except by card effect. This was the ruling as of the 2009 US national championship. if anyone has told you differently, they are lying and simply looking for a way to cheat you."

If someone can confirm this with proper reference, that'd be awesome!—This unsigned comment was made by ChaosVortex (talk • contribs) on 05:38, 23 January 2011.

* If you haven't noticed in the last 4 posts. Stuff like this goes in the forum.

If it is a Mandatory Trigger Effect like Sangan, then it must activated, and you show your opponent the deck if you don't have a valid target. I haven't heard of any ruling changes from that. If it is an Optional Trigger Effect like Peten the Dark Clown, then it can't be activated. If you accidentally activate it during an official tournament, you will be penalized as you are expected to know the contents of your deck. -Falzar FZ- (talk page|useful stuff) 05:47, January 23, 2011 (UTC) "

Further contribution would be appreciated to confirm this, thanks!