In this challenge, the image presents a fairly simple geometric shape, composed of intersecting and overlapping lines. The instruction? Count the exact number of visible triangles. Easy, right? And yet…
Why does our brain get tricked?
The unique aspect of this type of puzzle is that it plays with our perception. We naturally think to count the most obvious shapes. But often, we forget those formed by the union of several small triangles, or those that overlap.
Our brains love speed; they look for shortcuts. This is what we call cognitive biases: here, the brain unconsciously filters information to retain only what it deems relevant. The result? We miss certain triangles without even realizing it.
