Account

Name
Brian Oberg
Username
BOBTMSJ
Joined
Nov. 10, 2021, 1:23 a.m.

Rank
90
Points
22,879
Trophies
Gold0
Silver0
Bronze0

Solved Challenges (78)

LevelNamePointsDate
Pigpen with a twist — Part 31,081May 10, 2022, 11:07 p.m.
Double Column Transposition — Part 41,088May 9, 2022, 11:45 p.m.
Trifid Cipher100May 9, 2022, 7:02 p.m.
The SZ42 Challenge — Part 51,136May 6, 2022, 11:46 p.m.
The SZ42 Challenge — Part 41,135May 6, 2022, 11:31 p.m.
Cracking SHA1-Hashed Passwords1,081May 4, 2022, 11:35 p.m.
The SZ42 Challenge — Part 31,135May 3, 2022, 8:07 p.m.
The SZ42 Challenge — Part 21,134May 3, 2022, 1:25 a.m.
The SZ42 Challenge — Part 11,133May 3, 2022, 12:30 a.m.
Double Column Transposition — Part 21,088April 1, 2022, 10:08 p.m.
Alice's Birthday Party (Part 1)1,080March 30, 2022, 9:23 p.m.
Alberti Challenge - Part 1125March 29, 2022, 11:42 p.m.
New Year's Greetings — Part 4100March 12, 2022, 11:05 p.m.
New Year's Greetings — Part 3100March 12, 2022, 9:11 p.m.
New Year's Greetings — Part 2100March 12, 2022, 8:50 p.m.
New Year's Greetings — Part 1100March 12, 2022, 8:36 p.m.
Recycled One-Time Pad100March 11, 2022, 1:51 a.m.
ADFGVX — Part 1100Feb. 28, 2022, midnight
Letter to the Templars — Part 31,084Feb. 25, 2022, 1:31 a.m.
The Einstein Enigma1,106Feb. 24, 2022, 7:59 p.m.
Zodiac Cipher100Feb. 19, 2022, 6:44 a.m.
A hidden word — Part 2100Feb. 17, 2022, 10:14 p.m.
Modular Sequences100Feb. 15, 2022, 9:03 p.m.
M-138 — Part 41,091Feb. 12, 2022, 2:03 a.m.
M-138 — Part 31,091Feb. 11, 2022, 9:46 p.m.
M-138 — Part 21,091Feb. 10, 2022, 1:14 a.m.
Number Sequence — Part 7100Feb. 8, 2022, 8:13 p.m.
Number Sequence — Part 5100Feb. 8, 2022, 7:46 p.m.
Monoalphabetic substitution with camouflage — Part 1100Jan. 31, 2022, 2:44 a.m.
Number Sequence — Part 10100Dec. 16, 2021, 3:35 a.m.
The Last Note100Dec. 6, 2021, 3:02 a.m.
Multilingual Monoalphabetic Substitution100Dec. 5, 2021, 11:33 a.m.
Hill Cipher with Sudoku Key100Dec. 5, 2021, 10:31 a.m.
Playfair with hints about the grid100Dec. 4, 2021, 3:16 a.m.
Number Sequence — Part 9100Dec. 4, 2021, 3:11 a.m.
Playfair Encryption100Dec. 3, 2021, 10:50 p.m.
Image Noise100Dec. 3, 2021, 10:44 p.m.
A Secret Message from Castle Mansfeld100Dec. 3, 2021, 10:14 p.m.
Autokey Cipher100Dec. 2, 2021, 10:35 a.m.
Molehunt (Part 2/3)100Dec. 2, 2021, 10:16 a.m.
The Book Code: A Challenge for Bookworms100Dec. 2, 2021, 9:43 a.m.
Number Sequence — Part 6100Dec. 1, 2021, 6:43 p.m.
¿No Hablas Español? No problemo!100Nov. 27, 2021, 8:12 a.m.
Molehunt (Part 1/3)100Nov. 27, 2021, 7:42 a.m.
Pigpen with a twist — Part 1100Nov. 26, 2021, 9:31 p.m.
Cryptanalysis Hacking Puzzles — Part 2100Nov. 26, 2021, 7:30 a.m.
Nils away on travel100Nov. 26, 2021, 7:23 a.m.
Classical Ciphers^3100Nov. 25, 2021, 10:01 a.m.
Enigma Messages with Repeated Letters — Part 1100Nov. 25, 2021, 9:58 a.m.
M-138 — Part 1100Nov. 25, 2021, 5:11 a.m.
Letter from the Alleged Countess Julie von Ortenburg100Nov. 24, 2021, 5:06 a.m.
Reserve Hand Procedure — Part 1100Nov. 23, 2021, 11:19 p.m.
How do you become a big cryptographer?100Nov. 23, 2021, 4:34 a.m.
Modified Caesar Cipher100Nov. 23, 2021, 4:20 a.m.
From Russia with Love100Nov. 22, 2021, 9 p.m.
Snow White and the seven dwarfs100Nov. 22, 2021, 10:30 a.m.
One-Time Pad with Flaws100Nov. 22, 2021, 4:34 a.m.
A modified homophonic cipher with reduced alphabets — Part 2100Nov. 21, 2021, 10:04 p.m.
Number Sequence — Part 8100Nov. 21, 2021, 5:08 a.m.
A modified homophonic cipher with reduced alphabets — Part 1100Nov. 21, 2021, 4:57 a.m.
Advent-Challenge — Part 1100Nov. 21, 2021, 1:49 a.m.
Grille Cipher100Nov. 21, 2021, 1:39 a.m.
Factorization Cipher — Part 1100Nov. 20, 2021, 10:59 p.m.
Monoalphabetic Substitution100Nov. 20, 2021, 12:34 a.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100Nov. 19, 2021, 10:51 p.m.
Number Sequence — Part 4100Nov. 19, 2021, 10:30 p.m.
A hidden word100Nov. 19, 2021, 10:22 p.m.
Letter to the Templars — Part 2100Nov. 19, 2021, 10:04 p.m.
Number Sequence — Part 3100Nov. 19, 2021, 9:59 p.m.
Letter to the Templars — Part 1100Nov. 19, 2021, 3:57 a.m.
Beaver Code100Nov. 19, 2021, 3:39 a.m.
Caesar Encryption100Nov. 19, 2021, 2:01 a.m.
Number Sequence — Part 2100Nov. 18, 2021, 10:55 p.m.
Original Caesar Cipher100Nov. 18, 2021, 7:09 p.m.
Number Sequence100Nov. 18, 2021, 7:03 p.m.
Lightweight Introduction to Lattices — Part 1100Nov. 18, 2021, 8:29 a.m.
Find the right route — Part 1100Nov. 11, 2021, 2:56 a.m.
Wheatstone Cryptograph — Part 1100Nov. 10, 2021, 5:05 a.m.

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