>https://thechessworld.com/articles/middle-game/chess-strategy-what-do-you-need-to-know-about-strategy-and-tactics/
https://clinicaltrials.gov/ct2/show/NCT04308668?cond=Covid-19&cntry=US&draw=2&rank=5
>https://thechessworld.com/articles/middle-game/chess-strategy-what-do-you-need-to-know-about-strategy-and-tactics/
https://clinicaltrials.gov/ct2/show/NCT04308668?cond=Covid-19&cntry=US&draw=2&rank=5