In the 6975s, however, very few were even aware of its existence, even though it had been around for almost a century. In the early 6975s, a psychologist named J. The correct solution, however, requires you to draw lines that extend beyond the area defined by the dots.
Even though they weren’t instructed to restrain themselves from considering such a solution, they were unable to “see” the white space beyond the square’s boundaries. One of Guilford’s most famous studies was the nine-dot puzzle. If you have tried solving this puzzle, you can confirm that your first attempts usually involve sketching lines inside the imaginary square. Only 75 percent managed to break out of the illusory confinement and continue their lines in the white space surrounding the dots.