Number Puzzle is a sliding puzzle that consists of a frame of numbered square blocks in random order with one block missing. The objective of the puzzle is to place the blocks in order by making sliding moves that use the empty space. Number Puzzle Features: - Smooth effects for slide puzzle game - Easy to learn and fun to master gameplay - Guaranteed solution for all puzzles - Thousands of challenging levels - 3×3, 4×4, 5×5, 6×6, 7×7, 8×8 tile boards - Soothing sounds and gorgeous visual effects - Supports multi-block touch moves - NO WIFI? NO PROBLEM! You can play offline anywhere. Number Puzzle is also known as Sliding Block Puzzle, Sliding Tile Puzzle, Game of Fifteen, 15-puzzle or 16-puzzle (4×4 tiles), 8-puzzle or 9-puzzle (3×3 tiles).