New Delhi, Oct. 21 -- Optical illusions are one of Reddit's biggest trends. A viral post on the platform's r/FindTheSniper community is really testing the observational skills of users. Initially, the photo appears to be of a simple pond scene, but there is a turtle hiding in the image. Only the sharpest minds can solve the optical illusion challenge in five seconds.

The photo shows dense water plants covering the water, and there are some dry leaves and stems too. The post is one of the toughest challenges that dropped on the subreddit recently. The r/FindTheSniper community frequently features wildlife images where animals are so well hidden that even zooming in does not help immediately.

The creature may prove difficult for many to f...