PokerStars No-Limit Hold'em Tourney, Big Blind is t400 (4 handed)
internettexasholdem.com
UTG (t2415)
Button (t1400)
SB (t8000)
Hero (t1685)
Preflop: Hero is BB with X Y
<font color="#666666">
1 fold</font>, <font color="#CC3333">Button raises to t1375</font>, <font color="#666666">
1 fold</font>, Hero ??
What cards do you need to call here, and how far would you stray from what ICM would say here? Villain is an unknown.