The anti-cheat accused a fast meatbag
— I scored that in four minutes. Did you see it?
— I did. The anti-cheat is filing paperwork.
Our first check treated rapid score growth as suspicious. One small problem: large merges award more points, and a keyboard player can move much faster than our modest estimates.
We switched to a clean metric: one successful merge equals one point. The server examines update timestamps and the history of a specific run instead of trusting a glamorous number from the client.