okay i just spent like an hour thinking about this hand: Here it goes
Any bluffs we have on this board are going to be unnatural bluffs, which need a different set of criteria than normal bluffs.
The criteria for unnatural bluffs in this spot will be as follows:
1) We need to be at the bottom of our range
2) We will want to unblock Villains most likely flop calling range that will fold to a river bet
3) We need to pick a hand that is most often in our 3betting range
I present to you: 7
6
,7
6
,7
6
This hand serves a 3 pronged purpose:
1) It is our most frequent 3bet hand while simultaneously being at the bottom of our range (i.e. no showdown value)
2) It blocks Villains weakest Ace suited hands which unblock his most likely suited Aces, making him more likely to have top pair.
Example: Villain will call A
5
more often then A
6
because A
5
is a superior postflop hand.
This is why 76s is superior to both 65s,54s and 87s,98s.
(Villain is more likely to call A4s,A5s,A8s,A9s over A6s,A7s.)
We also do not want broadway cards in our hand for obvious reasons, these cards will make Ax less likely.
3) 76s can make more straights than 65s,54s while also making higher pairs and consequently has a lower chance of being counterfeited.
This is actually a pretty important point. Not only is 76s superior to 65s,54s in making high pairs, while also being less likely to be counterfeited. But it also has the added benefit of being able to make more straights
(i.e. Board reads A2345, 54s can never make a higher straight)
(i.e. Board reads A2345 65s can never make the nut straight)
(i.e. Board reads A2345 76s can make the nut straight)
So all in all - we need a hand that is at the bottom of our range, unblocks Villains most likely Aces, and can make the most straights possible.
76s FTW.