I 3bet-fold and b/f with AK

#1

6 hands in caller is 50/0. I thought about check - decide the river based on sizing. I doubt he folds AT or better here on the turn. Looking back if I size turn a little bigger I could shove river, didn't really have a plan though So I decide to try something new and block bet the river. He has no air to steal the pot and I feel like this guy won't turn 1 pair hands into a bluff. Was more expecting a shove. But I still dont see how this isn't 2pair+ mostly flushes or slowplayed boats
Grabbed by Holdem Manager
NL Holdem $20(BB) Poker Stars
SB ($1,490)
BB ($1,460)
Hero ($1,500)
UTG+1 ($1,660)
UTG+2 ($1,470)
MP1 ($1,520)
MP2 ($1,470)
CO ($1,670)
BTN ($1,260)

Dealt to Hero K A

Hero raises to $60, fold, fold, fold, fold, CO calls $60, fold, SB calls $50, fold

FLOP ($200) 2 6 A

SB checks, Hero bets $144, CO calls $144, SB folds

TURN ($488) 2 6 A 2

Hero bets $295, CO calls $295

RIVER ($1,078) 2 6 A 2 9

Hero bets $340, CO raises to $820, Hero folds

CO wins $1,758

got to find #2 after my session.

Yuck. Yeah I think once in a while he's decided his AQ is good on the river, but most of the time you're beat. Good fold I think. Not sure about the blocking bet idea. Not sure if there are many hands that will give you a cheap showdown there if he has what you fear. On the other hand if you check you're just asking him to rep a flush I suppose.

I like the fold on the river. You should have bet bigger on the turn though. Either that or you should have shoved it in the turn.