Are A2345 Straights permitted?
If so, where are they permitted/not permitted(full-tilt, pokerstars, wsop)?
Edit: I can't find anywhere in the official WSOP rules where it says anything about it, the correct answer REQUIRES a citation.
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There's not really an "official rules of poker" out there. Asking for a citation for this is like asking for a citation to the rule that states a flush beats a straight. However, the WSOP.com site does have a page on hand ranking :
And in it, the WSOP official site states "In Poker, the Ace is the highest card and the 2 card (Deuce) is the lowest. However, the Ace can also be used as a low card, with the value of 1."
The only games that aren't going to count aces in wheel straights or allow aces to be used as a low card are generally going to be lowball games (2-7 Triple Draw, Badeucey, Badacey, Razz, etc). Lowball games can sometimes have crazy rules, even in official card room settings (like not allowing check-raises, or not allowing you to check a made 8).
I am an online player and can guarantee you that every major online poker room considers A2345 a straight. The reason it is so hard to find a citation is because it is considered common knowledge (so if there exists a poker room where A2345 is not a straight, the designers clearly just didn't know the rules).
Here is a list of reputable organizations' rulebooks that have a clause for the rule:
EDIT: I stand corrected. After some more research I found out that the straight rule applies only for the more conventional poker games (hold-em, 5 card draw etc.) There are variations like Ace-to-five low (you can find them here) that do not consider A2345 a straight. That said, rules don't depend on the room or casino where you play but rather on the game you are playing.
It's called a "wheel straight" (every single poker website on which I played accepted wheel straight) and although I don't find it in the rules, it's mentioned in several PDFs accessible from the site wsop.com.
You can google, for example, for (using site: to restrict the search to wsop.com):
site:wsop.com "wheel straight"
And you'll find, among other sentences, the following one:
"Stu Ungar won his third and final WSOP Main Event in 1997 after his Ace-Four beat John Strzemp's Ace-Eight, when a river deuce gave Ungar the wheel straight and the victory"
I didn't know that Stu Ungar won his last Main Event with a wheel straight. That is kinda cool!
And, obviously, if you can win a Main Event with that hand, I'd say that the hand is legit and that the source is authoritative enough ; )
For the little story he had:
A♥ 4♣ vs A♠8♣
on the final board:
flop: 5⋄ A♣ 3♥ turn: 3⋄ river: 2♠
Here's a Youtube video showing that last hand: