Trendsnap on Instagram: "The post showcases a viral puzzle video challenging viewers to draw three interlocking colored loops (green, red, blue) connecting corner dots on a square without lifting any pen, claiming a 99% failure rate, which has amassed over 3.9 million views and 300 replies in hours. Rooted in graph theory's Eulerian path concept, the puzzle is solvable by traversing edges in a specific sequence that ensures each vertex has even degree, turning an apparent impossibility into a cl