Does chess increases IQ?
Hello MIra_tomo_aizawa, interesting question. First of I'm not familiar with the current research literature on this. But in my experience, in my internship as a psychologist I actually had to diagnose patients and sometimes an IQ-test was used. These are quite big tests and in it many parts of IQ were measured. For example: Performance intelligence, social intelligence and more. Puzzle-solving was a part of it as well and many top athletes are using chess to keep their mind sharp.
As to the question if chess improves IQ, I'm not sure. But I am sure that a certain part of IQ has a correlation with chess.
How to improve consitency? I either play very well and only hang like a pawn or I completely throw the game
Hello GeckoSoloYT, make a training schedule for yourself and keep with it for a long period of time. That's how you can consistently improve.