DIVER OSINT CTF 2026 "kohaku" Writeup

This article was automatically translated from Japanese by AI.

Challenge

DIVER OSINT CTF 2026 “kohaku”

Solution

Searching for 虚白庵 led to an article titled “こんなことで本当にいいの？”, which showed the building constructed after the demolition.

I compared the surrounding buildings in a photograph taken after the demolition and photographs in an article about a visit to the house with historical Google Street View imagery. This confirmed the store as どらっぐぱぱす 新江古田駅前店 at 35.7325, 139.6699.

Flag

Diver26{どらっぐぱぱす 新江古田駅前店}