http://www.pokerhand.org/?6755504

vs. 22/20, 3bet:10, small sample - 50 hands

Tough spot. Its pretty much standard to river. But on river its really hard without any info about villain.
QQ/KK is blocked, 33/22 is in his range, 77 - i dont think he's gonna cbet flop with underpair.

So 1+1+3+3=8 possible combos of sets. AA = 6 combos but if he's decent he knows that its not great spot to ship AA when overcard appears on river and i dont have many Kx in my range.