Playing online against . . . myself

I do not know if this is a bug but I was able to play against myself in a online game .... fr.lichess.org/QPVo57MlFSX5

It is not strange that you can play with yourself. The strange thing is that you have just played until checkmate :-).

It's an easter egg, they are forced to casual though.

I play with myself all the time.

If you played against yourself @flugsio in Rated though would it not stay the same regardless of the result?

#5 rated is blocked/converted to casual, two accounts could be used to bypass it but I think that is against the TOS in some way and may produce a fancy boosting-label on the accounts if caught

#4 I always recommend it.

I agree that playing with two separate accounts is banned, obvious why. But if it is the same account you are playing with against yourself wouldn’t rating change = 0? Maybe I am overcomplicating things xD.