Somewhere in all the cows, there had to be an invisible dog but does not depict where. This illusion tests your concentration and keen sight. The colors and patterns of the herd are so diverse ...

Only those with incredible attention to detail and immaculate vision will be able to spot the hidden dog in this tricky optical illusion. To give yourself an extra challenge, set a timer and try ...

This is not your average optical illusion game. The task? Spot the dog hidden in the image below ... illusion puzzle leave you scratching your head? If you can crack this optical illusion test ...