Here are the rules and explanations of this event, you must read it before participating to avoid mistakes or misunderstandings:
1. You will register with this on the registration thread (this will be detailed at the registration page)

Code:

YGOPRO / DN name :
Time zone :
Skype or other contact info :
Choose 1 Number Monster :

Quote :

Q: What does "Choose 1 Number Monster" mean? 
A: It means that you can choose 1, only 1 number monster that listed on yugioh TCG/OCG (the number card that still listed as anime cannot be used).

Q: What about the chaos numbers?
A: the chaos numbers can only be used at 1 too, and its a bonus when ppl choosing the number that has chaos number, (example. choosing utopia, he can use the utopia ray, utopia ray v, utopia ray victory, and s39 utopia 1 each), if ppl choose the number that has no chaos number, they cant use chaos numbers.

2. You cant choose a number monster that has been already chosen by a participant who already registered before you. (that means, the faster you register, the more choice of number monster you can choose)

3. There will be banned numbers, the number which you cant choose as the starter number. This will be detailed at the registration thread.

4. There are some kind of decks that you cant use in this events / Banned decks.

Quote :

-FTK/Pure OTK
-Controlled Infinite Loop (Life Point loops, ATK/DEF loops, etc.)
-Mill (Empty Jar, standard mill deck (that decks out your opponent), etc.)
-Burn (Chain Burn, Pure Burn, etc.)
-Alternate Win Condition (Exodia, Exodius, Final Countdown, Destiny Board, Vennominaga, Horakhty) except destiny leo.
-Stall (Intent to win solely by decking out opponent slowly; decks that have ways to inflict consistent damage for the victory are not stall decks (Watt, Direct Attack decks))
-Lockdown (Intent to prevent the opponent from performing any action)

5. Any deck except that listed on banned decks is allowed, and Deck change during the events is allowed.

6. You must have the number that you choose in your extra deck, and the number that you choose must be summonable from your deck. (Your main deck must contain cards to be able to summon this xyz)

Quote :

Q: what about the other xyz cards like zenmaines, gagaga cowboy, etc?
A: xyz monster like zenmaines, gagaga cowboy, daigusto emeral, lavalval chain, and other xyz that has no number on its card name, synchro and fusion monster can be used.

7. You can only use max 3 other cards (non number xyz monster, synchro monster, and fusion monster) besides the number on your extra deck (example, if you choose number 107, the amount of cards on your extra deck is 4, number 107 and 3 other).

8. How you get in the astral or barian side is determined by random, so you cant choose which side you want to in.

9. Since DN has the OCG cards, the duel will be using YGOPRO and DN.

10. The duel is match duel, using the latest TCG banlist and default options on the duel(no anime cards obviously). Between Astral Side vs Barian Side, betting your own number that you use in the duel(minimum bet is 1, maximum bet is all in), the loser will lose his number and the winner will get the loser number and the chaos number if the loser has the chaos number, then the winner can use the number that he obtain to the deck. (the numbers possession will be written and there will be a history of possession, so there will be no cheating i think)

Quote :

Q: What if opponent side has more number and they rejecting duel to win the event?
A: If they are online and you asking for the duel and they reject it, you can screenshot it and post it at the event thread, then we(staff) will judge it do be disqualified or not

11. The number that you choose is the symbol that you still in the events, you must have the number in their extra deck when dueling, and you must summon the number(one of them if you have more than one in possession) at least once during each match, (will be known at the replay of the duel, if you didnt have the number you choose at extra deck in the duel, or if found that you use the number other than you choose or other than you gained from lost member = disqualified)

Quote :

Q: What if the the number I obtained from a participant and I don't want to use?
A: There will be a history and the number that currently possessed, if you possess more than 1 number and you want use only one of them or all of them it's all your choice, but, when you lose, you must give the winner the number monster you bet, the number monster that you bet must be in the extra deck during the duel, and remember the number that you use in the extra deck must able be able to be summoned from your deck (You have monsters in your main deck that allows you to xyz summon the number).

Q: What about the number from the disqualified member?
A: It will be lost forever from the event.

Q: What if i cant summon the number at all during the match?
A: It depends. 
-if you lose the match and opponent summoned his number then you lose the match.
-if you lose the match but opponent didnt summon his number too then the match is invalid.
-if you win the match and opponent didnt summon his number too then the match is invalid.
-if you win the match but opponent summoned his number then you lose the match.

if any player disconnected during the duel, you can ask your opponent for reduel, if your opponent accept then reduel, if your opponent doesnt accept, then apply this :
-if you disconnected during the duel, you must provide the screenshot that you're not in disadvantage to re-duel or it treated as "Rage Quit" and you lose that duel (not lose the match).
-if your opponent disconnected during the duel but he deny it (i hope no one do this), you and your opponent must provide a screenshot of that duel before disconnected, the one who cant provide a screenshot is lose the duel, if both of you has the screenshot, then the one who at disadvantage is lose the duel, if no one at disadvantage then re-duel (not re-match).
-if you quit during the match, you lose the match.
-if you surrender one or two duels of the match, its treated as lose that one or two duels even if the opponent didnt summon his number during that one or two duels.

12. There will be no bracket or anything like that, you can duel ppl on opposite side anytime you want, as long you or the ppl you want to duel has the number in possession.

13. Each Participant must do minimum 1 duel (maximum is infinity until the end of the event; since there's no bracket), if at the end of the event we find someone that didn't do minimum 1 duel, then he will be disqualified and the number he obtained will be lost, that means the side has lost member is at disadvantage.

14. Ppl has no number in possession is not allowed to continue, coz you cant bet the numbers anymore.

15. there will be deadline on this events (the deadline depends on the number of participants), after the deadline, the duels will be stopped and the side which has the more number (chaos number is not counted) in there possession wins this event.

16. The event start if its passed the registration deadline and if the number of registered participants at both sides is same. if not same, we'll making it the same

That's it for now, and i think that is enough explanation 
if there are addition explanation, will be posted below or will be merged at this post.

So, if you're interested and want to participate in this event, just wait for the registration thread, and join. 

Revised the rule #11 become :

Revised the ruel #11 again become :