Kartenwerk: Solitaire FreeCell

Kartenwerk is Solitaire as a clean proof sheet — calm, exact, honest. Every deal is proven solvable. No random dead ends: a solver proves a winning line exists before the deal ships. Printed on the board: “Geprüft lösbar” — verified solvable. Not a slogan, a promise. • Klondike — free, forever. • FreeCell, the full statistics archive, and the daily-sheet history — one purchase. No subscription. • Daily sheet: a fresh, verified deal every day. • Plays offline. Only the ads need a connection. • German or French deck — both included. • Built accessible: VoiceOver, reduced motion, high contrast. Free play is ad-supported: a short ad between deals, and you can watch one to open a single FreeCell deal. The one purchase removes the ads and unlocks everything. Klondike stays free either way.