Chess players make more mistakes on polluted days

Chess players make more mistakes on polluted days: "We find that an increase of 10 µg/m³ raises the probability of making an error by 1.5 percentage points, and increases the magnitude of the errors by 9.4%. The impact of pollution is exacerbated by time pressure. When players approach the time control of games, an increase of 10 µg/m³, corresponding to about one standard deviation, increases the probability of making a meaningful error by 3.2 percentage points, and errors being 17.3% larger." – Künn et al 2019.

Interesting. Note to self- don't play chess on Guy Fawkes night!

so r u suggesting we play chess indoors?

so r u suggesting we play chess indoors?

A 3% increase in errors would mean I make 7 more mistakes per game. No big deal.

I'd like to see if the final paper stands up to peer review. Those indoor pm2.5 concentrations are pretty significant. Table 1 and Figure 3 has them hovering around 23 µg/m3  and as high as 51 at the beginning of the 2018 tournament.

I couldn't get a clear understanding of the predictive value. The adjusted R² values are around 0.050 in table 2. If I understand it correctly,  it indicates the equation on page 15 has poor predictive power.

It's an interesting paper, though not shocking. Someone put a lot of work into it. Now if I could just find an air pollution meter...

Is this for real? Probably works the same in worse play when the stock market gets manipulated up to hurt most all the people.

The cleanest air hasn't been producting the best players either

GMproposedsolutions wrote:

Is this for real? Probably works the same in worse play when the stock market gets manipulated up to hurt most all the people.

It's a working paper so it needs to be finished, published, and peer reviewed. But it's not an unreasonable conclusion. Similar pollution levels increase rates of lung cancers and many other diseases.

102 players with a max of 14 games means max 1428 games. As a total sample (wich is obviously less), this leads to a margin error to about 2,5%. The 3.2 points are not so meaningfull to me then, is it?