Are you a fan of classic puzzle games? Then 15 Puzzle Challenge is perfect for you! This game, also known as Gem Puzzle, Boss Puzzle, Game of Fifteen, or Mystic Square, was invented over 100 years ago. The objective of this simple puzzle game is to place the numbered tiles in order in a 4x4 square by making sliding moves that use the empty space.

The game offers challenging gameplay with a classic look. With 15 Puzzle Challenge, you can play on your iPhone or iPad and compete against anyone around the globe. The multiplayer mode allows you to challenge your Game Center friends, and the competition is tough. To win, you need to practice more, open all achievements, and become the number one player. The game also features unique achievements and global leaderboards, making it more exciting to play.

In addition, you can share your personal results on Facebook, Twitter, or via email. So, what are you waiting for? Download 15 Puzzle Challenge now and become the ultimate master of this classic puzzle game!