Villain is 66/28/7 on 33 hands, this one is Romanian if anybody have specific reads regarding Romanian fishes, not much postflop reads, guess river is pure check fold or bet fold, but without info i tought it's worth to check if i didnt induced random spazz

PokerStars, Hold'em No Limit - $0.10/$0.25 - 5 players
Hand delivered by Upswing Poker

UTG: $25.00 (100 bb)
CO (Hero): $48.25 (193 bb)
BU: $55.95 (224 bb)
SB: $40.77 (163 bb)
BB: $25.70 (103 bb)

Pre-Flop: ($0.35) Hero is CO with A♠ A♦
1 fold, Hero raises to $0.55, BTN calls $0.55, 2 players fold

Flop: ($1.45) 4♠ 9♥ 8♦ (2 players)
Hero checks, BTN bets $0.69, Hero calls $0.69

Turn: ($2.83) Q♦ (2 players)
Hero checks, BTN bets $1.35, Hero calls $1.35

River: ($5.53) 3♦ (2 players)
Hero bets $1.74, BTN raises to $4, Hero calls $2.26

Not sure about the river bet here, was this using the Ad to turn the hand into a bluff? Or a block bet where you called the raise? I would just check the river, the runout has been pretty dire for you although the river is brickish unless he's playing KTdd, T9dd etc. I'd probaby check-call a reasonable sized bet

i xr flop for sure.

river lead is pretty funky but i can see how this could be optimal. i think the hand is worth a bigger bet, tho.

If the reason you took the unconventional/exploitative line of leading the river is because villain is a whale, imo that suggests we could have played the entire hand differently, starting with just betting the flop. Were you concerned about facing a big river bet?

It's biggest issue with those kind of players, u usually have no idea how donkeyish they are postflop, becouse if they are they just get stacked by someone else earlier, 66 vpip, so there are bluffs like random j8, t7, t6, 56,67 he have all ofsuit combos of those hands with hi propability and no single whale fold gutshot to bottom str8, also possible a hi with diamond, plenty of potential bluffs if you play this kind of range

also, if you wanna consider weird leady stuff, turn seems an ok spot for it too.

If i bet turn and get raised it will be really ugly, if i m betting turn i can also cr flop, but you dont want to stack of 1 pair against idiot who in next 50 hands donate your stack to other reg with ak against set in srp 200bb, this is what scares me most when i play those players, i just hate seeing random fish reg winning 2 stacks, or fish just run after doubing, those are more important considerations than poker theory. I m just curious what is best EV play against unk whale on river readless

If you know he's a whale, I'd raise bigger pre as an exploit.

I b/b/xc here. We have the better range otf and ott, probably otr too, but we may have narrowed v's range considerably, and he may not call with worse given the runout, so I give v a chance to bluff otr.

not much of a fan of any street tbh except maybe the turn and even thats conceivably a raise given his sizing / stats. you obviously cant fold the river without an insanely strong read with the ad vs a minraise after leading (tbh you probably cant fold vs a much larger raise size either) and this isnt an opponent you want to try to make fold a hand better than AA so we are left with calling as the only option.
more importantly though, youre playing a presumably very weak player. its a race to take their money between the competent players at the table. worrying about what the solver would do at equilibrium and trying to mimic it is not what you're supposed to be doing here. we do that against suspected strong players we have no reads on. worrying about things like well fish hnr or i dont want "fish regs" to win 2 stacks so im going to pot control / set mine AA here against a 70 vpip isnt what you're supposed to be doing either. pot control is great and has its place for sure but here you know the guy is bad and likes to call. you have aa on 984. start putting money into the pot. you're 200 bb deep vs huge spot and by the time you get to the river you've put in 2 45% psbs with an extremely strong hand. then we try to put in a 1/3 psb. vs fish if you can beat tp generally "theory" goes out the window and you want to try to take as much of their money as you can.