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Describing OTB online chess without saying "j'adoube" beforehand, Lichess now has to implement this feature - just as Horsey was forced into permanent existence.

Most of the graphs showing the weekly rating stats come with a dip for rating numbers just below "round" values such as 1600, 1700, 1800 etc. This structure is most prominent in the ultrabullet case. …

@Xuprooshon @DrBreakerstein Thank you very much for your free lessons on how to castle correctly. Do you think it is important that I get in touch with my opponent as it was s/he who made the dubious …

Just noticed this part of the analysis of a game I played: https://imgur.com/00WyNhO Looks like a bug to me.

@braunegefahr : I understand what you are saying. However, in my case the situation was so complicated that (with my limited understanding) I was not sure whether there still was a good move or not. I…

Same thing happened to me a few weeks ago: I manoeuvred myself into a bad position about 45 seconds before the flag. It seemed impossible to save my skin, so I resigned about 2 seconds before the flag…

What level of Maths? High school, university or research?

@jposthuma : Any position containing this 3-pawn structure https://lichess.org/editor/8/8/8/8/8/7P/6PP/8_w_-_- is impossible to reach as well as this one with only one single pawn only https://lichess…

Apologies to #7 CM Sarg0n - had not realized that you proposed this case already.

#16: "Initial position with black to move can be reached by wasting tempos with the knights." That was my first thought, too. But, actually, wasting tempos does not work because knights (and the rooks…