Preflop is good
on the flop, make a continuation bet of 6bb or 6.5bb. a continuation bet can be either as a bluff or for value. in this case it would be a bluff. we didnt hit the board and we are hoping we can convince the other players that we did and that they didnt. this is an easy way to pick up dead money. fold to most raises if they give you the wrong pot odds
As played, fold the turn. I'm assuming BB either has 97 and made a straight here, or he has Kx and made top pair, or he's bluffing
. either way, we have nothing, and we have 4 outs to make a straight, plus 3 outs to make top pair. gives us 15% odds to improve and we have to pay 25% to the pot so we cant continue unless you have very good reason to think he's bluffing (we dont have a good reason to think that) (and if he is bluffing then he would have folded his share of the pot if we would have cbet)
I wouldnt count the queens as outs just because if he has a pair of kings, then a pair of queens doesnt help us.
i think the only reason that BB checked on the river is because he's afraid you might have a 9. which is a fishy move on his part. either way the bet is questionable. maybe, if he is a timid player he will fold. but if he's not timid, then he is only calling with hands that beat us. our line is very strange so he might call just to bluffcatch. I think bluffing here is probably just not a good idea. id check and hope that ace high is good.