Forty Thieves Solitaire

Two decks, 10 columns, same-suit building — only the very top card moves. Strategy every step of the way.

How to play

Forty Thieves is one of the most demanding solitaire games ever devised. Unlike Klondike or Spider, you can only move a single card at a time — no sequences, no shortcuts. With 104 cards spread across 10 tableau columns and a deep stock pile, every draw and every placement decision ripples through the rest of the game. Expect to win only about 10% of deals, making each victory genuinely satisfying.

The setup

Two standard 52-card decks (104 cards total) are used. Ten tableau columns each receive 4 face-up cards (40 cards total). The remaining 64 cards form the stock pile.

Moving cards

Only the top card of each tableau column is moveable at any time. No sequences can be moved as a group — always just one card.

Tableau building

Tableau columns build downward in the same suit. For example, 8♥ can be placed on 9♥. Any single card can be placed on an empty column.

Stock and waste

Click the stock to draw one card at a time to the waste pile. The top card of the waste pile can be played to any valid tableau column or foundation. There is no recycling — once the stock is exhausted, no more cards can be drawn.

Foundations

There are 8 foundation piles (two per suit). Build each up from Ace to King in the same suit. Both copies of each card must eventually be placed on separate foundation piles.

Winning

Move all 104 cards to the foundations. With only single-card moves and no recycling, careful management of the stock and empty columns is essential.