What Is the RAREST Move in Chess?

Hi Chess People!

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[-petrichor-]

It's always nice when YouTubers don't extended it, even in the video he said "I have nothing much to add" and this isn't even a short so it goes to show how much he cares for his viewers.

[busy_beaver]

The rearest 1st move would be also interesting

[adammichna]

It would imply that you already locked your bishop into a corner where it sees less than before, and you yeet it all across the way to the other corner where it sees nothing but the diagonal.
Very rarely is that necessary.

[nathanwongchinrenntps]

1:02 Well it’s kinda common if a opponent blundered a rook and your bishop happened to be at h file cus threatening

[oicmapper]

When i was a noob in chess, i always lost my rook to the bishop tricl

[drdilyor]

rares move is a1 to b4, it can never happen (jk)

did you account for the fact that some moves are legal but might have never happened? does your code produce correct results in that case?

[largin]

i was thinking it would be which move (like knight to h2) would be the rarest.

[ashleychan]

This is very interested but how do you get the data? Also, keep up the good work! This is very good and presumably VERY time consuming. Thank you for making my day!

Edit: how did you only got 10k subs