Legion takes the Klondike rules and deals them into a pyramid: one card at each edge, then three, five and seven cards as the columns approach the centre. The first row is dealt face up to all eight columns, and after that the centre of the board takes a hidden row and an open row in turn, so every column shows its top card and hides the cards underneath in stripes — open, hidden, open, hidden. Twelve cards are concealed, and unlike Klondike you can see a card between every pair of them.
The edges are your free columns. The two outer columns hold a single face-up card each. Play those cards off — onto a foundation, onto a neighbour — and you have an empty column almost at once. Only a king can fill it, so look for a king in the open rows before you spend the space, but two potential spaces on the first turn is a luxury Klondike never offers.
Every hidden card is one move deep. Because hidden and open rows alternate, no hidden card is ever buried under more than one face-up card at a time. That makes uncovering cheap: move the top card and a stripe of information appears. Prefer moves in the centre columns, where three hidden cards are stacked and each reveal opens the next.
The centre is the mountain. The two seven-card columns each hide three cards and are the last to clear. Work them from early on rather than leaving them to the end, when the stock will be gone and their kings will have nowhere to go.
Twenty cards, one pass. The stock is small and comes round once. Clear the tableau of every available move before each click, and keep track of what has passed — a card you needed and skipped is gone.
The Klondike family turns a handful of the same dials: how much of the deal is hidden, what the tableau builds on, what an empty column accepts, how many cards a stock click turns, and how often the stock comes round. Legion keeps every rule at Klondike's setting and changes only the shape of the deal. Its cousin Athena deals seven equal columns with alternating hidden rows; Legion does the same on a pyramid, so the outer columns are nearly free and the centre carries the weight. The result plays faster than Klondike at the edges and slower in the middle, and rewards a player who reads the whole board rather than working left to right.
Legion runs in your browser — free, no download, no sign-up. Install it as an app on your phone or computer and it works offline. You get unlimited undo, a hint button that names a legal move, statistics that track your wins and times, and seeded deals: every game has a seed you can replay, so a board you enjoyed (or lost) can be played again exactly.