Do anyone understand this?

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c124875

Do anyone understand this?

It's on Off Topic Forums chess.com, there's a remake of Neal.fun's password game. Then someone made this rule. Previously I got 80.8. The math problem is revised in screenshot 3




c124875

I somehow can't upload the screenshot of it so here is the link of the forum:

https://www.chess.com/forum/view/off-topic/remake-of-password-game-on-neal-fun?page=5