1.There is no guideline inside Memory Game page
2.If user click more than 2 cards will cause error
3.User click 4 cards on mobile browser, one of card maybe remain half face-up
4.User click 3 cards at same time, third one will remain face-up.
5.The moves is less than 0, we cannot have negative moves
1.There is no guideline inside Memory Game page 2.If user click more than 2 cards will cause error 3.User click 4 cards on mobile browser, one of card maybe remain half face-up 4.User click 3 cards at same time, third one will remain face-up. 5.The moves is less than 0, we cannot have negative moves