Nine columns and two decks make this a larger draw-three Klondike. Build eight suited foundations from ace to king to finish all 104 cards.
More cards, the same landing rules
Build columns down in alternating colors. Ordered alternating-color runs move together, and only kings or king-led runs fill empty columns. The opening tableau has 45 cards, with 36 hidden; uncovering them turns them over.
Pick the duplicate that opens something
The 59-card stock turns in groups of three, with only the exposed waste card playable. Stock passes are unlimited. When two identical cards fit the same receiver, inspect what each covers. Moving the one that opens a hidden card or releases another waste card creates a stronger next move than simply lengthening a run.