It's NOT a sim. It's an exact calculation. There are four 2s,3s,4s,6s and 3 fives removed from a single deck. From that 33 card deck player has a hand of 10-5 versus all of dealer's possible up cards and exact EV using best strategy is calculated and displayed.stophon said:Wait so your sim shows you should stand with a 15 against a 7-A except for a 10? Wtf?