Chess psychology (de Groot, Chase and Simon, later Ericsson and Gobet) made expertise a laboratory. Macnamara’s 2014 games band put deliberate practice at about 26% of variance — the highest of their domain bands, still a minority. Judit Polgár’s career was a family experiment against “no women at the top” folklore.
Go, war colleges and entrepreneurial strategy share mechanisms and do not share a single IQ. This page is not a ranking of nations’ “game intelligence”. Masters did not always search deeper in simple measures; they saw better positions. Perception as expertise.
Check each criteria to confirm findings against the atlas verdict.
Chess psychology (de Groot, Chase and Simon, later Ericsson and Gobet) made expertise a laboratory. Macnamara’s 2014 games band put deliberate practice at about 26% of variance — the highest of their domain bands, still a minority. Judit Polgár’s career was a family experiment against “no women at the top” folklore.
Go, war colleges and entrepreneurial strategy share mechanisms and do not share a single IQ. This page is not a ranking of nations’ “game intelligence”. Masters did not always search deeper in simple measures; they saw better positions. Perception as expertise.
Macnamara et al. 2014: about 26% in their games coding — minority, largest among their bands. László Polgár’s project produced three elite players, including Judit. It is a powerful family experiment, not a proof that any child can be world number one.
Near transfer to similar search tasks is likelier than far transfer to every decision. “Chess in schools raises IQ” is a weaker claim. Yes, with ceilings. Early start helps some motor-speed and pattern volumes; strategy remains open later than ballet.
This is about practice and individual craft. It is not a group IQ score. It does not replace the full topic page.
Next question: Talent identification · Open the topic: Strategic talent
🔎 Athletic talent: read “Windows” before you decide · 🛑 Athletic talent: what “Practice band” does not decide · 🛠 Culinary talent: use “Core” in the tool · 📍 Culinary talent: the local fact in “Myth” · 🔎 Deliberate practice: read “Sport band” before you decide · 🛑 Deliberate practice: what “Tone” does not decide · Decision checks