Hi! Can anyone tell me why on move 7 (knight takes e4) was given a brilliant move


Brilliant Moves are always the best or nearly best move in the position, but they are also special in some way.
We replaced the old Brilliant algorithm with a simpler definition: a Brilliant move is when you find a good piece sacrifice.
There are additional conditions:
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You should not be in a bad position after a Brilliant move
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You should not be completely winning even if you hadn't found the move.
We are also more generous in defining a piece sacrifice for newer players compared to those who are higher-rated.
It's considered brilliant because you end up winning no matter what, you get a decent position with the top computer exchange and knight cant take because it's pinned to the queen.