In Liars Poker, if a player bids four 4s, he predicts that within all of the dollar serial numbers held by all players there are at least four instances of the number 4. The next player must bid higher (four 5s, four 6s, five 1s, etc) or call (challenge). When all players have challenged, a count of the bid number determines who won and who lost.
In LIARS POKER SLIPS you have a 2nd chance to make a bid if your first is challenged around. The amount you can win changes with the bidding, with stakes from one hand carrying over to the next. LIARS POKER SLIPS also manages multiple Sessions, keeps score, and tracks Settlements. Other features such as variable progression through a Slip and the None Bid further enhance play.