I'm leaning towards betting the river over ch/ring.  Your blockers make it such that it's unlikely he has the straight combinations, and this is a run-off that should coordinate well with your range.  I don't think you rep much with your ch/r, but going bet/bet reps a wider value range and folds out the portions of his range that just check back the river and showdown[AA,KK,86,82,Q].   

That being said, if he is a station, check/folding is the best line.

I don't see AA or KK folding to this turn bet ever.  I don't actually really see the point of betting the turn here.  If turn checks through I think you can bluff lead this river.  I don't like the c/r though.  First of all, if you c/r at all make it full pot.  But secondly, trying to rep the straight here on just a single street doesn't work too well with fishes.  They are curious, and when they know they're just a single click away from knowing your hand, they will often call. 

I've been experimenting a bit with river c/r lately.  Mostly in 6-max but still.  I'm very surprised by the hands which will bet/call, way weaker than one should expect.  One dude even bet/3-bet river with J high flush. My experience so far is totally that c/r river for thin value is a ton better than c/r bluffing.  The c/r bluffs are maybe 0 EV at best, whereas the c/r for value is super profitable against certain opponents.

With what seems like a bet sizing tell it's probably fine, but can't fault check-folding or barreling, considering you've seen him limp 3-bet 7783 as well as AA. How did the hands play out previously where you jammed over his river bet?

he folds two times  ,when betting 1/2 pot riv , to my bluffshoves.    But these two times the action goes check check flop... he lead oop turn.... and then lead 1/2 pot riv /fold to my raise. 

Overall i think it´s too spewy and c/f riv > bet riv     should be way better options.  Thx for the

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