Solitaire,Match pairs

We deal 1 card at a time , When you find a match between

2 cards,You click on both cards and they are removed.

And the rest of the cards are rearranged to the left and down

A match - when 2 cards have same number

The 2 cards have to touch each other-\

On the left, right, top, bottom or diagonal

Another way is to deal all cards and then click matching pairs

(More challenging)