
Each puzzle piece displayed on the main menu is selectable. Each puzzle piece will display a different selection of 14 puzzles. With nine different puzzle pieces that brings the total number of puzzles available to 126!
Source: Steam Community (opens in a new tab)

Each puzzle piece displayed on the main menu is selectable. Each puzzle piece will display a different selection of 14 puzzles. With nine different puzzle pieces that brings the total number of puzzles available to 126!