The number means how many of the 8 surrounding tiles should contain some part of the solution path. Linesweeper is originally invented by Jak Marshall. **** Linesweeper features **** # Content - 5 difficulty levels - more than 500 levels # Features - "Check" function can highlight wrong lines - option to enable automatically highlight wrong lines - Automatically indicate correct numbers - Autosave the process of unfinished levels - Record best completion time for each level # Challenge - Game Center Achievements - Try to complete as many levels as possible