Color Strings is a logic-puzzle game that requires a player to think about the spatial orientation of strings on pegboards. The player must realign one or more colored stretchy strings across 80 levels to match specific goals.
On each level, the game displays a small image of the goal near the top of the screen. It presents the string or strings on pegs, represented by gray circles, below the goal. The player can only reposition a string using circular, color-matched knobs on it. A string typically has knobs on each end. A knob can also appear at any other spot along the string.�
Color Strings isn't physically difficult. The player selects a color-matched knob to lift part of the string from a board and then reposition that part elsewhere by increasing or decreasing the amount of the string's stretch. They can move a string anywhere on the board, as long as they can find an open peg and the string stretches enough.
That said, the game is mentally complex. The player must look at the goal and imagine how they can move a string or strings into new positions with only the knobs so that they place every section correctly at the right length.