The deal
Two decks supply ten columns of four cards each; the first three rows are face down and the fourth face up. The rest form the stock.
Forty Thieves & two-deck builders · Grand Plaza
Two decks supply ten columns of four cards each; the first three rows are face down and the fourth face up. The rest form the stock.
Select a face-up card, then a highlighted destination.
Two decks supply ten columns of four cards each; the first three rows are face down and the fourth face up. The rest form the stock.
Move single exposed cards onto cards one rank higher and opposite in color. Empty columns accept any card. Turn stock cards to the waste; build eight suit foundations from Ace.
Move all 104 cards to the foundations.
The 30 hidden tableau cards are the main constraint. Prefer a legal move that flips a card over a move that only rearranges visible tops.
Deauville is part of Grand Plaza · Forty Thieves & two-deck builders and is a variant of Napoleon at St Helena. Three of each column’s four opening cards are hidden and tableau building alternates colors.