Yes: you can use the New Game with Options... item under the Game menu to choose how many decks you wish to play with.

You don't need to do it every time you start a new game, since it will remember the last used setting.

The same menu item can be used to set the options for other games as well (for instance, in Klondike you can use it to change the number of cards dealt when clicking on the deck or to allow partial column moves).

Wiz Solitaire 1.28 is now available.

Here's the list of changes since the previous version:

• As of this release, the official minimum requirement for Wiz Solitaire is Mac OS X 10.3.9


• Chinese Solitaire, Diplomat, Rouge et Noir, Scorpion, Seahaven: cards can grew bigger when you enlarge the window.


• Diplomat: double-clicking on cards will move them to the first available foundation or pile.

Wiz Solitaire 1.27 has just been released. Here's the list of changes since the previous version:

• Added a "Clean Up" function in the "Game" menu (also available as a button you can add to the toolbar). It automatically performs all the available moves towards foundations: use it only when you've almost completed the game and you can see that you're going to win, otherwise it will only spoil the fun.
• Eagle Wing: fixed according to the rules.

Wiz Solitaire 1.26 is now available. This release focuses on a couple of improvements that have been requested for Klondike:

• an option to allow partial column moves has been added (e.g. if K-Q-J-10 is one pile and Q is another, you can move J-10 onto the other Q). Enabling this option makes the game easier to complete.
• when you ask for a hint, useless actions like moving a King from a pile to another won't be suggested.

Wiz Solitaire 1.25 is now available.

New in this release:

• Baker's Dozen: double clicking on a card will move it to the correct foundation, if possible.


• Added a shortcut to toggle the toolbar (Command + T).


• Made the statistics sheet resizable.


• Free Cell: made it possible to select which game to play. Use the "Game->New Game with Options..." menu item to enter the number of the game. The first million games are the same that can be played on the Free Cell implementation shipped with Microsoft Windows.


• Scorpion: a message will signal when you are forced to deal the last 3 cards because no other move is available.


• A "Game Rules" item has been added to the "Help" menu: it will open an utility panel with the rules of the game you're playing.


• Chinese Solitaire, Yukon: changed the layout of the table to give more room to foundations.