$4 NLHE Full Ring: KK response to turn check raise?

No stats on villain

PartyGaming - $0.04 NL - Holdem - 8 players
Hand converted by PokerTracker 4

UTG: $4.00
UTG+1: $11.25
Hero (MP): $4.00
MP+1: $11.18
CO: $3.94
BTN: $7.14
SB: $3.36
BB: $4.00

SB posts SB $0.02, BB posts BB $0.04

Pre Flop: (pot: $0.06) Hero has K:spade: K:diamond:

UTG raises to $0.12, fold, Hero raises to $0.36, fold, fold, fold, fold, fold, UTG calls $0.24

Flop: ($0.78, 2 players) 7:diamond: 9:spade: 6:spade:
UTG checks, Hero bets $0.52, UTG calls $0.52

Turn: ($1.82, 2 players) J:club:
UTG checks, Hero bets $0.86, UTG raises to $1.72, Hero calls $0.86

River: ($5.26, 2 players) Q:diamond:
UTG bets $1.40 and is all-in, Hero calls $1.40 and is all-in

This is textbook baluga theorem (one pair hand vs. chckraise on turn is usually behind). I'd probably be betting more on turn to about $1.00, but still folding to the chckraise until we have more info on villain. It's close, but unless we are confident villain is capable of doing this with draws and air or that his UTG range is tight but includes KJ+ we are probably slightly behind his range.

Agree. It's close but ye I think turn is a fold. It's close enough that I think I play it exactly like you did and just call down for info