Villain is standard TAgg without much history. Don't know how he got his stack in this session; in a previous session with him he played ABC poker well enough to beat these stakes, but not well enough to beat me. He's a little above average on aggression but not a spewmonkey.

The theorem (with little field testing so far) says that if a villain check/calls the flop + donk leads on the turn, without significant change in board texture, he's not that strong. He may have a little something he'd like to show down, or he may be blocking for a draw. In this case if the theorem holds, I should refuse to give him credit for better than a pair of queens. His range on the turn according to the theorem is Qx, JJ, TT, 99, 88, 7x, and flush draws.

How's this?

Full Tilt No-Limit Hold'em, $0.50 BB (6 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

BB ($80.30)
UTG ($49.50)
Hero (MP) ($51.25)
CO ($23.25)
Button ($16.85)
SB ($69.20)

Preflop: Hero is MP with :Kc: :Kh:
UTG calls $0.50, Hero raises to $2.50, 2 folds, SB calls $2.25, 1 fold, UTG calls $2

Flop: ($8.50) :Qs: (3 players)
SB checks, UTG checks, Hero bets $6, SB calls $6, 1 fold

Turn: ($20.50) (2 players)
SB bets $12.50, Hero calls $12.50

River: ($45.50) (2 players)
SB bets $48.20 (All-In), Hero calls $30.25 (All-In)

Total pot: $106 | Rake: $3