Good morning @aburihan1. These days I have read several reviews of Memory Game, it looks very interesting and we should take advantage of this kind of games to strengthen our mind. Cards that turn over and you have to find the pairs, it seems easy, but after reading your explanation and experience with this game, I understand that it is not so, because of the number of cards and how difficult it can be to remember each one.

You achieved a good result with 10 pairs in 21 moves, in one minute, that's very good, the most important thing is that you entertained yourself, had fun and strengthened your mind and memory.