[INGRESS Decoding challenge] TESSERA Round 1 - Myriad Ultimatum

https://community.ingress.com/en/discussion/5359/tessera-round-1-myriad-ultimatum/p1

ヒント1：切り抜きぬかれた地図
Tip 1: Map cut out

ヒント2：赤枠の記号が表すもの
Tip 2: What the symbols in the red frame represent