4-Line Jacks Or Better
The object of 4-Line Jacks or Better is to obtain a five-card poker hand that contains a winning combination. It differs from original Jacks or Better, since it has four lines of cards. Each line uses a different deck of cards. Each line is treated as a separate hand for the determination of any wins.
The better your hand, the bigger the payout. You choose how many and which of your cards are to be replaced. You may replace your cards only once.
To play the game:
Choose the value of the coins you wish to wager each round, by clicking on the + and - buttons on the right of the screen. Click Bet One or Bet Max to select the number of coins you wish to wager. Each click on the Bet One button adds another coin to the bet. Clicking Bet Max increases your bet to the maximum - that is, five coins per line - and deals the cards automatically. You can also click the appropriate column on the paytable to specify the number of coins per line.
The bet size you choose is per one line. Since there are four lines of cards, four times the single line bet amount is subtracted from your account balance. Your total bet amount is shown on the Bet screen in the lower right corner of the window.
Choose which cards you wish to keep by pressing the Hold button underneath the card, or by clicking on the card itself. Held cards are used across all four lines of cards. The game has an auto-hold feature where cards that make up a winning hand on the original deal are automatically held.
Click Deal to replace the cards that you did not choose to hold. After the cards have been replaced, your cards are checked for any winning combinations, described in the paytable (click the Paytable button to see it, click again to close it).
If you have winning hands on multiple lines, your winnings are added up.
The lowest winning combination is a pair of Jacks: a pair of any lower cards (for example, Tens) is not a winning combination; a pair of any higher cards (for example, Queens) is a winning combination.
If you end up with a winning hand, you can accept the win (click Collect), or Double it. Should you choose to Double, the dealer draws a face up card and you are given 4 face-down cards to choose from. If you choose a card that turns out to be lower than the dealer's, you lose your original win. If the cards are equal, it is a tie, and you have the option to collect your original winnings (click Collect) or Double again. If your card is higher, you win double your original win amount. You then have the option to collect your winnings or Double again.
You can also choose to Half Double, which means you only double using half of your winning amount, and deposit the rest into your balance.
You can move the Double window (if enabled in the Options) by dragging it with the mouse. Doubling is a separate game round, and can be viewed as such in the Game History. During doubling the Bet screen displays the amount wagered for doubling. The Win screen displays the win amount for the current round.