cache location:
N 23° 08.x'
E 113° 19.y'
x = (① - ③)2 - (⑧ - ②)
y = (④ - ⑤)2 + (⑥ - ⑦)
Follow the hint to find it once you reach your calculated location.
计算出藏宝点坐标后即可前往对应位置按照提示寻找。
You can validate your puzzle solution with certitude.
[puzzle] Fbyinl
[cache] Zber uvag va gur pregvghqr fbyhgvba.