Opponent is a smart semi-tight player, a TAG with tricks. 27/22/2.8 (VPIP/PFR/AF) over ~980 hands. I've been playing a similar yet slightly tighter style than him.
Villain's a good player so I know his pre-flop range is very wide here. Thus, I can assume that I'll often flop good equity with this hand and It's likely I have card-advantage in this situation vs this opponent. Generally, as we are deep there is a fair amount of room for manoeuvre here.
$6 NL (6 max) - Holdem - 6 players
Hero (SB): $1980
Pre Flop: Hero on SB has K♠ T♥
2 folds, CO raises to $26, 1 fold, Hero calls to $20
Flop: ($55, 2 players) A♠ Q♠ 3♣
Hero checks, CO bets $42, Hero calls $42
Turn: ($139, 2 players) Q♥
Hero bets $105, CO calls $105
River: ($349) 3♠