Made from sturdy wire with a nickel plated finish, it can withstand a strong force, although it’s not needed to actually solve the puzzle. The goal of the Sidewinder is to remove the red string from the wire frame and then to put it back as it were. With a mix of string and wire, the puzzle is extremely difficult to solve, since it requires a sequence of complex moves to free the string. Solving this puzzle, however, is very rewarding, leaving you with a real sense of accomplishment.