PokerStars No-Limit Hold'em, €0.50 BB (6 handed) - PokerStars Converter Tool from http://flopturnriver.com/

Hero (SB) (€92.09)
BB (€38.11)
UTG (€102.89)
MP (€45.08)
CO (€55.35)
Button (€55.21)

Preflop: Hero is SB with 8d7d
3 folds, Button raises to €1.25, Hero raises to €5, 1 fold, Button calls €3.75

Flop: (€10.50) 6c, As Kd (2 players)
Hero bets €5.50, Button calls €5.50

Turn: (€21.50) Ah (2 players)
Hero checks, Button checks

River: (€21.50) 7c (2 players)
Hero checks, Button bets €10.25, Hero raises to €81.59 (All-In), Button calls €34.46 (All-In)

Total pot: €110.92 Rake: €2.50

Villian is a solid reg.
Until river I don't think there's much to say.
About, the river the good things about the bluff are that I block a big part of his top range (A7s and 77). I can have a lot of nutted combos and after his bet he mainly represents weak aces (which there's a decent chance he will fold) and bluffs like QJs or JTs.

However I'm not sure I can represent a lot of nutted hands after checking river (I think on the turn I can be checking with good hands a decent amount of the time). But at the same time it's is very strange to see regs doing these kind of bluffs in these stakes, so I can maybe exploit that.

What are your thoghts?
Thanks