Poker Stars, $1.44 Buy-in (15/30 blinds) No Limit Hold'em Tournament, 2 Players
Hero (BB): 680 (22.7 bb)
SB: 320 (10.7 bb)
Preflop: Hero is BB with J
K
SB raises to 320 and is all-in, Hero calls 290
unknown villain
probability aggressive
Call or fold?