一些逻辑训练的谜题:娜塔莎、十二点钟和茶
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>>2024年6月4日今天是一个重要的日子,阿列克谢希望到人民广场点蜡烛。在这场计划中,阿列克谢的行动会...
Given the patrol route, the Square is police-free when the patrol is en route Square (the last leg of the previous cycle) -> Police Dept -> Courthouse -> Square. The available window is about 60 minutes. Also, the Courthouse has a 140-minute window of time without police. It is the key step to move the candles from the Police Dept to the Square.
Noticing the parameter that "当阿列克谢最开始抵达人民纪念碑,他们刚开始从人民公安出发," the two parties have synchronized itinerary:

Double-check by location and time

I think it works under the condition that Alex holds the position for 20 minutes at the Police Department. If Alex has to keep moving, then there will be a time where dropping the candles and moving back-and-forth is needed to avoid the patrol. The mission will fail because it will then take 3 hours and 20 minutes.
