only 4 hands on villain

Bigger pre, fold flop.

disagree...and disagree.

3bb pre is fine.
call flop - villain bet 1/2 psb. this is a great HU flop to donk out on to rep a good diamond to get folds. call flop.

turn you improved, villain could easily be firing with AdX or Kdx. I'm calling turn.

I think you underestimate the strength donk bet barreling can be in the micros. I don't think we see a bluff here often at all. I agree with a flop call but I'd definitely fold turn when he bets so much. Are you willing to call off a river bet too if it's a blank? If we had the ace of diamonds though I'd call for sure, I think that's pretty obvious though. Preflop I don't think matters that much but I like to make it 4x when somebody posts a big blind.

Definitely call turn.
Flop i dont know when its unknown and a halfpot lead. Would always fold vs. regs and call vs. fishes that lead a wide range.

missed CO posted - agree making bigger pre.

I donk bluff these type of boards almost always because it works (if i'm semi bluffing, even better!). I'll fire turn as well if i have some info on villain.

anyway - on a river blank in this hand, if i'm hero, i'll fold to a reasonable third barrel because that would indicate a better made hand than TPTK (not enough triple bluffs OOP and not having Ad makes it easy fold) but it takes the third barrel to convince me. i'd also check behind.

i folded turn because he instantly donked pot size bet, i'd call anything <40c.
i agree i should raised 4x pre but i would never fold on flop

Call flop Call turn

If he checks river (diamond or not) I bet/fold

Think flop call is pretty marginal tbh. You've got loads of Qd, Kd and Ad to call with, as well as plenty of made hands given you iso'ed from the BTN so your range interacts pretty well with a T75 flop...moreso than if you were in MP anyway.

There's not really any cards we're liking OTT if he keeps firing. Your implied odds for hitting your diamond are low since even fish can find a fold with 4 diamonds on the board, but your reverse implied odds are high since if turn is a diamond you'll feel committed to call another bet at least.

And if the card is a jack, it completes the most obvious straight draw (89) and so you've got big reverse implied odds here too. JT 2 pair is then easily within villains range too.

Really the only card you're liking is an ace. I'd be chucking this OTF.

PF sizing is fine.
Call flop
Turn is close, fine to fold or call, reads are helpful here
River fold vs big bet / x back

Really just depends if this guy is a fish or not. I would fold vs unknown.

+1

Bleh, just did some maths about our ranges, looks like flop is a pretty clear call actually. Turn is a fold though AINEC.

I'm calling turn, evaluating on the river.

+2