Every card face up from the start — almost every deal can be solved.
The patience where nothing is hidden. Every card is face up from the first move, so there is no luck after the deal — and almost every deal can be solved.
Eight columns, all 52 cards dealt face up: seven cards in each of the first four columns and six in each of the last four.
Four free cells sit at the top left, each holding one card. Four foundation spaces sit at the top right.
Build the four foundations from ace to king, one per suit.
Move the bottom card of any column onto another column's bottom card, if it is one rank lower and the opposite colour. Move any single card into an empty free cell, and out again to a column or foundation later. Play any available card to its foundation. An empty column may be filled by any card at all — not just a king.
Strictly, you may only move one card at a time. Most implementations let you drag a sequence, which is really just a shorthand for moving cards through the free cells one by one. The number you can move at once is (free cells + 1) × 2 for each empty column — so keeping cells and columns free is the whole game.
Every deal is fully visible, so a loss is your fault rather than the deck's. Of the 32000 numbered Microsoft deals, exactly one — number 11982 — has been proven unsolvable.
The first thing to do in any deal is find the aces and count how many cards sit on top of them.