The guy 3-bet me and for some reason i decide to just call.
He checks the flop, so i thought he has A high most of the time or a small pp.
He called the flop.
On the turn i bet bigger, representing a very strong holding like 88 or TT+.
Do you think it is a good bluff ?
I dont think he would play JJ+ like this and also possible he has like an ace too but not sure, so i prefered to take the pot down.

PokerStars - $0.10 NL FAST (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

BTN: 149.8 BB (VPIP: 20.42, PFR: 17.72, 3Bet Preflop: 7.08, Hands: 345)
SB: 100 BB (VPIP: 29.63, PFR: 24.07, 3Bet Preflop: 4.76, Hands: 54)
BB: 102.2 BB
UTG: 366.2 BB (VPIP: 21.47, PFR: 14.72, 3Bet Preflop: 8.61, Hands: 504)
MP: 28.6 BB (VPIP: 27.27, PFR: 16.67, 3Bet Preflop: 4.17, Hands: 57)
Hero (CO): 155.5 BB

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has A K

fold, fold, Hero raises to 2.5 BB, fold, SB raises to 8 BB, fold, Hero calls 5.5 BB

Flop: (17 BB, 2 players) 8 2 3
SB checks, Hero bets 8.1 BB, SB calls 8.1 BB

Turn: (33.2 BB, 2 players) 2
SB checks, Hero bets 20.9 BB, fold

Hero wins 31.7 BB

There is no need to bluff with this hand.

true but i thought if i check it back, he would sometimes bluff on the turn but i dont know how often + he got outs, so i just wanted him to fold his stuff + perhaps call with a weaker hand like AQ, he can also have a draw, calling it on the flop, something like 65s, having a gutshot or AsTs and dont want to bet.
Whats about the turn after he called the flop, i did think he has me often beat with marginal things like A3 or 44.

Easy check back otf, you aren't folding better. Just look to get to SD as cheap as possible with it.

Yeah no, he dosent have 45s, because of the 3-bet i would put him on the range AJ+ and TT+. and if he had one overpair i dont think the he would check otf. so it leaves us with flushdraws. and does want fold on turn either, he has two over cards and a flushdraw gives him about 9-15outs depends on our range. and if you have trips. This time you would got a boat. so his outs are 0. but if he has his 9 outs, and you have trips which is super likly here his implied odds are good enough for a call on the turn.

so yeah just check back and hope for cheap sd, he has a strange line thats for sure.

No, this is a 3-bet from SB against CO, lots of light 3-bets could be there, many player 3-bet the most from the SB (me too) agasinst late position openers, so of course he can 3-bet low pocket pairs or suitec connectors.
I dont have much hands from him, but i see it all the time SB 3-bets Bu 4-bets SB folds, i startetd to 4-bet light a little bit more.
Dont know if people makes a huge difference between CO an BU when 3-betting, but i all the time look at huge SB 3-bet numbers and for resteals even more.
Because of this fact, i called here with AK, also was not sure about 4-bet, call here and dont want to fold like Axs, AT-AQ and get the most money, but when checked to me in 3-bet pots they give often up, but like you say with AK i have showdownvalue, so cb is propably better.
Flopchecks seems reasonable but on the turn, i tried to second barrel a little bit more today and it works two times in spots versus SB, one time i cb turn with 55 on a high and bet the river on another ace so i dont like my bluff too much.

If you're pretty confident in a hand read that says he has a fd, then betting the turn for value and checking behind on the river is optimal, no?

4b pre

may be you're bluffing w/ best hand

If he 3bets light then a 4bet , but you sad that already.

I missed to include the low pcoket pairs under 88 could still be in his ranges, But i have super hard to se him 3-bet 45s, however he might have a A3 tough if he 3bet light but then 45s is there aswell. Maybe Villian still has overpairs and dont bet them otp

and bet bigger otf, 1/2 pot gives him the right odds to follow with flushdraws, if your plan is to dubble barreling then i think its fine.

maybe you can take out he lower pocketpairs dubble barreling.

No idea why you insist on putting flushdraws in villains range. The common line from regs is to cbet or x/raise them, sometimes x/call if they have SD value to go (like As3s in this instance, but there's no way anyone is folding turn with that hand anyway).