Sun Dragon Inti & Moon Dragon Quilla

What happens if both are destroyed simultaneously [Dark hole], and there are no other copies in the graveyard?

There's no ruling on it and I find different answers elsewhere.

The summoning effects won't activate until after they are destroyed and already in the grave, so when Quilla activates there will be an Inti in the grave at that time which can be summoned. Inti will then activate during the Standby Phase as it normally does.

I don't get it, will Qulla be summoned after Dark hole resolves and then Inti during the standby phase? Does that start a new chain also?

No the other way around Inti Is summoned after Dark Hole Destroys them, and during the next Standby phase Quilla is summoned. After Dark Hole Resolves, Quilla effect starts a new chain. And in next Standby phase Inti effect to summon Quilla starts a new chain as well.

Okay thanks.

I had assumed that in my game play, which is why I combo them with black rose dragon for a quick 3000 should they have a large back row (Just PRAY! they don't have a solemn anything.), but its nice to have a reference for when an argument ensues so I thank you also.