★★★★★
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Solver optimization: ignore more of the non-useful moves.
Devil Six Solitaire adds a brilliant twist to classic solitaire — with two decks, strategic planning, and deceptive simplicity that will test even the sharpest minds. The rules are historically attributed to Winston Churchill (circa 1940) and popularized decades later by diplomat André de Staercke. Perfect for players who crave depth, logic, and a true test of skill. Every deal is a battle of wits — can you think several moves ahead and triumph? - Every game is winnable, ranked by difficulty - Daily Games and Challenge Packs — everyone plays the same deals, so you can compare results - Plays fully offline — every deal is generated on your device - Free, with no ads - Unlimited Undo, Redo and hints - Smooth, intuitive play