logic IQ and chess



Why classical over, say, problem-solving?
I'm not sure I understand the question, but I'm going to give an answer anyway.
Classical.
However, the real answer is that I don't know, but I think the real question is also different. I think what you are trying to get at is which forms of Chess require the most logical thought, as opposed to some other form of intelliegence.
I did some research (i.e. looking stuff up in journals, not original, experimental, research) a few years back on the subject of IQ tests and Chess. What I found was that while great Chess players often had high IQs, it wasn't as strong a correlation as you might expect. Some great Chess players had high, but not stellar IQs, and a lot of high IQ people did poorly at Chess, even with practice. One of the interesting findings is that when a great Chess player is analyzing a game, the portion of the brain that deals in logic is not as strongly activated as the portion of the brain usually associated with facial recognition.
The general feeling was that the great Chess players were not using logical ability to find the right move. They were "seeing" the right move, and using logic to confirm that it was right.
So, the classical players would have more of an advantage if they were great logical thinkers, while the great players at fast games would have much less of an advantage. Therefore it seems moderately likely that the classical players might be better at logic.
Those are very broad statements about this sort of player or that sort of player, and the research I was reading about was not universally accepted or universally applicable. In other words, please don't jump down my throat if you disagree. It's just what I read. (Last time I participated in a thread on the subject, one person in particular took offense and totally personalized it. It was an unpleasant experience. I find the subject very interesting, but not if people get emotionally wrapped up in it.)


I'm not sure I understand the question, but I'm going to give an answer anyway.
Classical.
However, the real answer is that I don't know, but I think the real question is also different. I think what you are trying to get at is which forms of Chess require the most logical thought, as opposed to some other form of intelliegence.
I did some research (i.e. looking stuff up in journals, not original, experimental, research) a few years back on the subject of IQ tests and Chess. What I found was that while great Chess players often had high IQs, it wasn't as strong a correlation as you might expect. Some great Chess players had high, but not stellar IQs, and a lot of high IQ people did poorly at Chess, even with practice. One of the interesting findings is that when a great Chess player is analyzing a game, the portion of the brain that deals in logic is not as strongly activated as the portion of the brain usually associated with facial recognition.
The general feeling was that the great Chess players were not using logical ability to find the right move. They were "seeing" the right move, and using logic to confirm that it was right.
So, the classical players would have more of an advantage if they were great logical thinkers, while the great players at fast games would have much less of an advantage. Therefore it seems moderately likely that the classical players might be better at logic.
Those are very broad statements about this sort of player or that sort of player, and the research I was reading about was not universally accepted or universally applicable. In other words, please don't jump down my throat if you disagree. It's just what I read. (Last time I participated in a thread on the subject, one person in particular took offense and totally personalized it. It was an unpleasant experience. I find the subject very interesting, but not if people get emotionally wrapped up in it.)
Thank you for your answer. This is all for fun and musing. I assume all of those categories require hardworking talented folks with high IQ's and high levels of logical thought. Grandmasters are becoming younger and younger and younger and the research you mention about facial recognition would imply that much of chess "evolution" over the years is the imprinting of various positions into long-term memory as opposed to novel problem-solving. Why does Magnus hardly ever lose at classical chess, only to be wiped out like an amateur by Wesley So in chess960? Of course, this could be a multifactorial answer. Why do I come across comments in chess books such as "Adolf Anderssen could solve combinations as well as any modern super-GM", yet it is accepted that he would get easily annihilated in any modern tournament. I also wonder if this would affect chess teaching ... Is there a better or different way to teach chess to someone with a strong memory and poor logic (and vice-versa)? Are there teachers, coaches, authors, and high level FIDE trainers aware of any memory-logic discrepancy in players and students, including how that might play out in teaching amateurs versus professionals or adults versus children, etc.?