Board: 8h 7s 6h
Dead:
Equity Gewonnen UnentschiedenVerloren Hand
Spieler 1: 23.033 % 15.835 % 14.397 % 69.769 % AdJd
Spieler 2: 76.967 % 69.769 % 14.397 % 15.835 % 77+, ATs+, KQs, AJo+
As he seems to become a bit tighter (PFR wise) opponent I gave him a slightly tighter range than a PS.com TAG.
23% is not enough to call this flop so folding directly is best here.
If this opponent would have been a PS.com TAG then calling the flop and reevaluation on the turn is possible (33% equity in this case but calling is not needed yet on these limits as continuing is pretty difficult).
But let's assume he is a PS.com TAG. This is our equity at the turn:
Board: Th 8h 7s 6h
Dead:
Equity Gewonnen UnentschiedenVerloren Hand
Spieler 1: 24.110 % 20.291 % 7.638 % 72.071 % AdJd
Spieler 2: 75.890 % 72.071 % 7.638 % 20.291 % 66+, A9s+, KQs, ATo+, KQo
It decreased by 9% but with a gutshot we can still continue.
Now the river:
Board: Kd Th 8h 7s 6h
Dead:
Equity Gewonnen UnentschiedenVerloren Hand
Spieler 1: 4.598 % 0.000 % 9.195 % 90.805 % AdJd
Spieler 2: 95.402 % 90.805 % 9.195 % 0.000 % 66+, A9s+, KQs, ATo+, KQo
Here we have a very clear fold. If we even remove the hands he wouldn't bet anymore we are even more behind.
But as we called on the flop with the intention to see a showdown we can look which rivercard would be good for us.
Board: Th 8h 7s 6h 3s
Dead:
Equity Gewonnen UnentschiedenVerloren Hand
Spieler 1: 19.588 % 15.464 % 8.247 % 76.289 % AdJd
Spieler 2: 80.412 % 76.289 % 8.247 % 15.464 % 66+, A9s+, KQs, ATo+, KQo
Board: Th 8h 8d 7s 6h
Dead:
Equity Gewonnen UnentschiedenVerloren Hand
Spieler 1: 20.000 % 15.789 % 8.421 % 75.789 % AdJd
Spieler 2: 80.000 % 75.789 % 8.421 % 15.789 % 66+, A9s+, KQs, ATo+, KQo
All cards lower than a 5 or board pairing cards are good for us so in these cases we could call if we bets still his prefloprange at the river.
I don't think that he willdo this very often so the reduced range should be:
Board: Th 8h 8d 7s 6h
Dead:
Equity Gewonnen UnentschiedenVerloren Hand
Spieler 1: 0.000 % 0.000 % 0.000 % 100.000 % AdJd
Spieler 2: 100.000 % 100.000 % 0.000 % 0.000 % 66+, AKs, ATs, AKo, ATo
Note that I just removed AQs, AJs, KQs, AQo, AJo and KQo so hands that may very well just give up or check/call to induce a bluff.
This means that we have to fold in any case if we don't improve on the river.