Puzzle games are a broad genre that maintains logical and conceptual challenges; it may include concentration, logic, pattern recognition, word completion, and sequence searching. The games have either infinite attempts to solve puzzles and an unlimited amount of time or involve restricted timing and limited tries. They typically offer related puzzles for each theme, using the same colors, shapes, and numbers; however, the game design might be quite simple. There is also a set of rules which form the mechanics, and various outcomes leading to next levels. Sometimes they are tied into a whole story developing throughout the play. Minesweeper is one of the first puzzles developed in the 1980s. The gameplay and mechanics are very easy, and the game itself is cheap. At the time, it led to tremendous success which made puzzles one of the most favored genres ever since. It is now divided into various types and is available via the majority of platforms.