A great logic game, also known as picross, nonogram, griddler, paint by number, and picgrid. Reveal the underlying hidden picture by turning on the correct colored pixels based on numerical clues. Features: - No unnecessary story lines, just pure puzzle game play - Tutorial to explain how to play the game - Ability to split larger puzzles into smaller quadrants for easier solving. This allows the entire 16,000 puzzle library to be solvable by all skill level players. - Remembers your progress for each unfinished puzzle to allow you to continue later on - Very efficient touch interaction (like color dragging, long press to switch to background color, pinch to pan/zoom) to achieve minimum solve times - Unlimited undo - Dockable color and clue palettes for maximum screen real estate - Individual puzzle leaderboards - Includes 30 black-n-white and color puzzles spanning 4 difficulty levels - Additional puzzle packs available as in-app purchases for up to 16,000 more puzzles at an average cost of less than 1 US penny per puzzle - Ability to search for puzzles by name