Students in educational chess develop their intelligence more than others, and typically in multiple parameters, including emotional intelligence. They also typically improve their academic performance but, above all, in two areas: mathematics and reading comprehension. This is even scientifically proven. There are also many other qualities - we could make a list of 40 or 50 - but to mention just one, it is knowing how to win and lose: this is developed in chess in a very special way because, more than in any other sport, in chess you cannot blame losing on the referee, or the rain or muddy ground. Luck practically does not come into it at all. As such, in chess, the loser is the one who learns the most. If I play a game now with you, and you beat me, the first thing I'm going to do is ask myself why I've lost. I am developing self-critical thinking in a very intense way. If I play chess frequently, I will do that very often. I have no doubt that we can talk about transfer here, that is, that what I am learning from chess is transferable to real life, making me self-critical in my normal life in any situation because I have a kind of automated muscle in my brain to be self-critical. Basically, the list of virtues, values and skills that chess develops is very long.
Having flexible thinking is essential. It's not enough just to think - now you have to learn to think flexibly. That is why chess is so good, because if I play a game with you, during that game, there are several moments when a single play of yours or mine will force us to change completely how we see the whole board. What's more, we have to do it quickly because the clock is ticking.