I have just started playing NL100 after quite a long stretch of NL25 and NL50. This hand has been making me think since I played it last night. I can't figure out the BBs line here. What could he have been holding that was worth putting 1/3 of his stack in PF, but then folding to the pressure? Do you think this was just a power move trying to bluff both of us off of the pot? Or a good laydown with AK/TT+? There are no reads, and he has none either as we've all just played a single orbit together.
Poker Stars $0.50/$1.00 No Limit Hold'em - 6 players
2+2 Hand Converter
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UTG: $65.25
MP: $95.80
Hero (CO): $98.50
BTN: $150.60
SB: $57.10
BB: $101.55
Pre Flop: Hero is CO with A

A

UTG calls $1,
1 fold,
Hero raises to $4,
1 fold,
SB raises to $13,
BB raises to $33,
1 fold,
Hero raises to $98.50 all in, SB calls $44.10 all in,
1 fold