re: Poker & $10 NLHE 6-max: KK, ace hits on the turn
I'd say his range on the river is
sets (12 actual combos but I'd discount to maybe 6 due to bet sizing),
AXss (Say he calls the 3bet preflop with 5 of those (ATss-AQss,A5ss,A2ss),
A2s,A5s (included in his ss range so the remaining 2 combos)
That's 13 likely hands that beat us.
That means that even if the ONLY hand he plays like this that we beat is 55 (6 combos) calling is very profitable (we win 31% of the time). Add air, other pairs (66,88) and we're crushing.
I doubt you could build a realistic range even if you include every Ax hand possible that we wouldn't have the odds
to call that river bet against.