Spot the difference puzzles

Are you an observant person? Do you notice patterns? Can you say what is here one minute and gone the next? If so, you will love Spot the Difference Puzzles. There are 50 full colour puzzles for you to solve; 33 have only one difference between pictures A and B and 17 have three differences between pictures A and B. Some of the puzzles are easy and some of them are tricky, while others are fiendishly difficult. Test your powers of observation with Spot the Difference Puzzles.