Burn After Solving

Burn After Solving
Running Team	NPL
No. of Registered Teams	499
Winning Team	you first; we insist
No. of Rounds	3
No. of Puzzles (Feeders and Metas)	24
Timeframe and Location
Location	Online
Start Time	2021-10-09 13:00 EDT
Finishing Time (Winning Team)	2021-10-09 17:49 EDT
Official End Time	2021-10-22 23:59 EDT
Links
Hunt Link	Link

Burn After Solving was a puzzle hunt written by members of NPL. The hunt started on October 9, 2021 at 1:00 PM EDT. The launch weekend (October 9-11 2021) was the main event and the solutions became available on October 22, 2021 at 11:59 PM EDT but teams can still continue to solve. 63 teams finished the hunt during the weekend; 151 teams finished the hunt eventually (including 20 teams finishing later than October 22, 2021).

Structure

Round	Feeder Puzzles	Metapuzzles	Total
Briefing	12 (grouped into 4 categories)	1	13
Fieldwork	6	4	10
Mission	0	1 (Final meta)	1

List of Puzzles

Briefing

CODEBREAKING	DISGUISE	RECONNAISSANCE	SURVEILLANCE
Color Blocked	Cover Up	European Mission	All in the Family
Clerical Errors	Unheard Meanings	Get Your Bearings	Inter(cep|sec)tion
Rows and Call-’ems	Garment Design	Satellite Imagery	Divided Attention

Fieldwork

Fieldwork	Metapuzzles
Black Ops	Reconnaissance (metapuzzle)
Data Extraction	Disguise (metapuzzle)
Guess Who?	Codebreaking (metapuzzle)
Language Barriers	Surveillance (metapuzzle)
Spy Glass
You Are a Terrible Crane