Tap "Search" on the bar at the bottom of the game screen to open the Search interface.

From here you can filter the entire library of puzzles that have been released to date.

Puzzles can be filtered by the following criteria:

Progress:

You can filter the search results to only show either puzzles you've not yet started, puzzles that you have started but not finished, or only puzzles you've completed  (if you want to replay them).

Issue Type:

Choose whether to return puzzles from Daily Pages (collected into Monthly Issues), Themed Issues, or both.

Category:

Puzzles in the game are divided into three main categories: Logic, Number and Picture. Only one can be selected at a time. The list of puzzle types within the selected category will be displayed under Puzzle Type.

Puzzle Type:

Here you can specify whether to show one puzzle type within the selected category, or all puzzles within the category.

Size:

Many puzzle types appear in multiple sizes (Small, Medium, Large). In some cases, puzzles of a certain size and type only appear in Themed Issues. Not all puzzle types support multiple sizes.

The total number of puzzles that match the selected filtering criteria is displayed at the bottom of the page. To view a list of the puzzles, swipe left to view the Search Results. Tap any search result to be taken to the page containing that puzzle.