Misc · Pwn2Play 2026

BIKINI State: RED

A recovered UKWMO / Royal Observer Corps exercise. Convert three monitoring-post flash bearings to true bearings, plot them on the Group Control workstation, and identify the site at the fix.

Challenge files

Open anything you like.

Playable 20 Group York Control inbox

The RG-1421z inbox, the three post reports and the exercise brief.

Playable Group Control plotting workstation

Interactive ROC map + triangulation calculator. Enter the true bearings to get the fix.

Download Report A, Tunstall 20/55

Master-post traffic sheet: GZI flash bearing + card error.

Download Report B, Keyingham 20/56

Satellite-post traffic sheet: GZI flash bearing + card error.

Download Report C, Skirlaugh 20/57

Satellite-post traffic sheet: GZI flash bearing + card error.

Download bikini-state-red.txt

The in-exercise brief, objective and flag format.

Download ops/traffic.txt

The UKWMO routing slip that leads to the unlinked workstation.

Writeup Brief

Challenge prompt and objective, non-spoiler.

Writeup · spoiler Solution

Full author walkthrough and the flag.