Cassandra’s Deal

Klondike, with foresight

Play solitaire.
Learn when the deal is lost.

Cassandra’s Deal is classic draw-one solitaire with one unusual ability: it keeps working out whether the position in front of you can still be won.

View on the App Store

Free · Mac · iPhone · iPad

working
A game of Cassandra’s Deal in progress, with seven tableau columns, foundations, stock, waste, and a winnability indicator.

The question behind every move

Could I still have won from here?

Most solitaire games tell you when no obvious move remains. Cassandra’s Deal asks the harder question: whether any sequence of legal moves can still finish the hand.

Winnable

The solver has found a legal route from the current position all the way to a completed game.

Working

Some positions take real computation. Keep playing while the analysis runs asynchronously in the background.

Unwinnable

Explore the choices that led here, undo a move, and build an intuition for the quiet decisions that lose a hand.

Still unmistakably solitaire

Familiar cards.
A deeper game.

Draw from the stock, build alternating tableau runs, uncover hidden cards, and move each suit home from ace through king. Tap, drag, or flick cards into place.

  • Draw-one Klondike with unlimited stock recycling
  • Responsive layouts for Mac, iPhone, and iPad
  • Share any position as a puzzle link
  • Automatic endgame finishing when the path is clear
Landscape game board showing Cassandra’s Deal’s card artwork and controls.
The control panel reports the current position while staying out of the cards’ way.

Why it exists

I wanted this, so I wished it into existence.

I wanted a solitaire game that did more than deal cards. I wanted to learn which innocent-looking move actually made a hand impossible—and no game I had did that.

Cassandra’s Deal is free. There is no grand business plan. It exists because I wanted something like it, and decided it ought to exist for anyone else who wants it too.

Your next deal is waiting

See the game you almost won.

Cassandra’s Deal is free for Mac, iPhone, and iPad.

View on the App Store