Classic/Standard PF KK Decision.....

[BluffTHIS!]

WTRs (weak-tight rocks) look for reasons to fold, and TAGs and LAGs try to given them those reasons. Even though holding KK reduces greatly the times AK is out, it is still more likely than AA. His range here has to be the extremely narrow AA/AKs for a fold to be correct. That player has AKo/QQ in his range all day long though (and very possibly JJ shorthanded), and this is an instacall.