Best free "solitaire" games

GAME GENRE – Solitaire games are single-player card games in which players arrange and move cards according to a particular set of rules, usually based on suits, ranks, or both. The best-known version is Klondike, the classic solitaire included with countless computers, where players must uncover hidden cards and build ordered stacks while carefully deciding which moves to make next. Although the rules are usually easy to understand, completing a difficult game can require plenty of planning, patience, and a little luck. Digital solitaire has expanded the genre with dozens of variations, along with features such as hints, statistics, timers, undo buttons, and themed card designs. It is a simple formula, but apparently putting cards in the right order can be an excellent way to lose track of an afternoon.