This is a computer version of the traditional 'Higher-or-Lower' card game. It can be played either by two players or with one player versus the computer. Each player has a row of cards, of which initially the first card only is turned up, and a 'stick' marker.
On his turn, a player may decide to change the first card for another by clicking on the 'Change' button. The player then has to guess whether the next card to be turned up will be higher or lower than the previous one, and indicates his guess by clicking on either the 'Higher' or 'Lower' button. If the player is correct, he may keep guessing until:
a) all the cards are exposed,
b) he guesses incorrectly, or
c) he decides to stick.
The first player to turn over all of his cards wins the round. The first player to win three rounds wins the game.
If a player guesses incorrectly, then all of the exposed cards past the stick marker are replaced by new cards, dealt face down, and it becomes the other player's turn. If a player decides to stick, by clicking on the 'stick' button, then the stick marker is positioned after the last card exposed, and it becomes the other player's turn.
Notes:
The cards run in the order (from lowest to highest) A,2,3,4,5,6,7,8,9,T (ten),J,Q,K.
If the card turned up is the same as the previous one, then the guess is counted as incorrect regardless of whether higher or lower was guessed.
