Account

Name
H. Lautenschlager
Username
helmi
Joined
April 10, 2012, 5:19 p.m.

Rank
30
Points
57,600
Trophies
Gold4
Silver7
Bronze9

Active Challenges (1)

LevelNameAttemptsDate
Number Sequence — Part 53 / 15June 10, 2014, 9 p.m.

Solved Challenges (103)

LevelNamePointsDate
The T52 Sturgeon Challenge — Part 81,130July 26, 2021, 12:32 p.m.
Wheatstone Cryptograph — Part 1200April 22, 2021, 2:01 p.m.
The SZ42 Challenge — Part 91,444Jan. 1, 2021, 11:23 a.m.
The SZ42 Challenge — Part 71,333Nov. 26, 2020, 7:24 p.m.
The SZ42 Challenge — Part 82,000Nov. 1, 2020, 12:38 a.m.
Find the right route — Part 1200Oct. 27, 2020, 10:42 p.m.
The SZ42 Challenge — Part 62,000Oct. 3, 2020, 5 p.m.
The SZ42 Challenge — Part 52,000Sept. 3, 2020, 6:21 p.m.
The SZ42 Challenge — Part 42,000Aug. 30, 2020, 12:53 p.m.
The SZ42 Challenge — Part 32,000Aug. 16, 2020, 11:31 a.m.
The SZ42 Challenge — Part 21,485Aug. 15, 2020, 12:53 p.m.
The SZ42 Challenge — Part 11,373Aug. 13, 2020, 8:47 p.m.
Lightweight Introduction to Lattices — Part 32,000July 16, 2020, 2:42 p.m.
Lightweight Introduction to Lattices — Part 2200June 24, 2020, 11:27 a.m.
Lightweight Introduction to Lattices — Part 1108May 28, 2020, 2:20 p.m.
Polyhomophonic Substitution — Part 1110March 31, 2020, 1:37 p.m.
The LoRa Cipher: Logic Randomness — Part 11,444March 3, 2020, 6:52 p.m.
The T52 Sturgeon Challenge — Part 31,203Dec. 22, 2019, 8:03 p.m.
The T52 Sturgeon Challenge — Part 21,212Dec. 1, 2019, 10:01 p.m.
The T52 Sturgeon Challenge — Part 11,211Nov. 25, 2019, 6:14 p.m.
Cryptanalysis Hacking Puzzles — Part 2100Aug. 15, 2019, 11:15 p.m.
Double Columnar Transposition100Aug. 15, 2019, 11:06 p.m.
Homophonic Encryption — Part 21,725May 11, 2019, 7:53 p.m.
Homophonic Encryption — Part 12,000May 5, 2019, 1:50 p.m.
Cryptanalysis Hacking Puzzles — Part 1113Nov. 3, 2018, 5:33 p.m.
Autokey Cipher150Sept. 26, 2018, 7:27 p.m.
Modular Sequences150Sept. 26, 2018, 5:43 p.m.
Number Sequence — Part 10200April 18, 2018, 8:29 p.m.
The Einstein Enigma2,000Feb. 8, 2018, 6:35 p.m.
ADFGVX — Part 2100Jan. 3, 2018, 10:44 p.m.
ADFGVX — Part 1100Jan. 3, 2018, 8 p.m.
AES ECB Wrong Encoding1,423Dec. 31, 2017, 6:15 p.m.
New Year's Greetings — Part 4100Dec. 28, 2017, 3:19 p.m.
New Year's Greetings — Part 3100Dec. 28, 2017, 2:17 p.m.
New Year's Greetings — Part 2100Dec. 23, 2017, 9:34 p.m.
New Year's Greetings — Part 1100Dec. 23, 2017, 6:54 p.m.
Advent Challenge — Part 32,000Dec. 22, 2017, 9:36 p.m.
Advent Challenge — Part 42,000Dec. 21, 2017, 11:30 p.m.
Advent-Challenge — Part 21,824Dec. 18, 2017, 4:07 p.m.
Advent-Challenge — Part 1200Dec. 8, 2017, 9:06 p.m.
Number Sequence — Part 9200Nov. 16, 2017, 10:27 p.m.
Image Noise200Nov. 21, 2015, 10:52 a.m.
Number Sequence — Part 8200Sept. 14, 2015, 1:31 p.m.
A hidden word — Part 2200April 16, 2015, 6:29 p.m.
Number Sequence — Part 7200March 23, 2015, 11:26 p.m.
Number Sequence — Part 6200March 23, 2015, 6:48 p.m.
M-138 — Part 21,824Dec. 25, 2014, 4:36 p.m.
M-138 — Part 1200Dec. 24, 2014, 8:32 p.m.
The Last Note125Sept. 26, 2014, 1:21 p.m.
Heartbleed — Part 31,824Aug. 29, 2014, 5:50 p.m.
Heartbleed — Part 2200Aug. 28, 2014, 11:31 p.m.
Heartbleed — Part 1 200Aug. 28, 2014, 11:03 p.m.
Playfair with hints about the grid100July 23, 2014, 12:37 p.m.
Double Column Transposition — Part 41,725May 22, 2014, 12:55 p.m.
Spanish Strip Cipher — Part 11,824March 29, 2014, 11:46 a.m.
Enigma Messages with Repeated Letters — Part 3150March 6, 2014, 4:05 p.m.
Enigma Messages with Repeated Letters — Part 5200March 5, 2014, 8:15 p.m.
Enigma Messages with Repeated Letters — Part 2111Nov. 6, 2013, 8:11 p.m.
Trifid Cipher200Oct. 29, 2013, 12:02 p.m.
Playfair Encryption100Oct. 15, 2013, 7:04 p.m.
Enigma Messages with Repeated Letters — Part 1200Sept. 26, 2013, 3:43 p.m.
Hill Cipher with Sudoku Key125Sept. 8, 2013, 3:06 p.m.
From Russia with Love200Sept. 4, 2013, 6:09 p.m.
Nils away on travel200Aug. 9, 2013, 11:14 a.m.
Snow White and the seven dwarfs200April 20, 2013, 1:56 p.m.
Reserve Hand Procedure — Part 1200March 6, 2013, 10:27 p.m.
Multilingual Monoalphabetic Substitution125Feb. 2, 2013, 8:48 p.m.
Enigma Messages150Jan. 24, 2013, 5:16 p.m.
A hidden word200Jan. 6, 2013, 4:45 p.m.
Recycled One-Time Pad114Nov. 26, 2012, 7:16 p.m.
Zodiac Cipher100Oct. 11, 2012, 10:42 a.m.
Letter to the Templars — Part 32,000Oct. 9, 2012, 6:06 p.m.
ECDH-Key Exchange for Beginners100Oct. 6, 2012, 4:16 p.m.
Turing Bombe Enigma I100Oct. 5, 2012, 2:49 p.m.
Enigma Combinatorics100Oct. 1, 2012, 12:03 a.m.
Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1100Sept. 29, 2012, 9:25 p.m.
Beaver Code200Aug. 13, 2012, 8:45 p.m.
Brute-Force-Attack on Triple-DES with Reduced Key Space1,133Aug. 1, 2012, 12:20 a.m.
Letter to the Templars — Part 2200July 30, 2012, 8:20 p.m.
Letter to the Templars — Part 1200July 16, 2012, 11:29 p.m.
Pigpen with a twist — Part 1100June 2, 2012, 7:59 p.m.
How do you become a big cryptographer?200May 29, 2012, 9:37 a.m.
Letter from the Alleged Countess Julie von Ortenburg100May 27, 2012, 6:28 p.m.
¿No Hablas Español? No problemo!105May 8, 2012, 9:50 p.m.
Molehunt (Part 2/3)100May 6, 2012, 12:11 p.m.
Molehunt (Part 1/3)100May 4, 2012, 7:58 p.m.
Kaskade-S/T — Part 1100May 1, 2012, 12:25 a.m.
The Book Code: A Challenge for Bookworms103April 27, 2012, 12:05 a.m.
Number Sequence — Part 4114April 25, 2012, 10:26 a.m.
Classical Ciphers^3100April 24, 2012, 8:17 p.m.
Monoalphabetic Substitution100April 20, 2012, 10:07 p.m.
Modified Caesar Cipher100April 16, 2012, 1:42 p.m.
Grille Cipher101April 14, 2012, 5:24 p.m.
A modified homophonic cipher with reduced alphabets — Part 2100April 14, 2012, 3:55 p.m.
A modified homophonic cipher with reduced alphabets — Part 1100April 13, 2012, 2:44 p.m.
Factorization Cipher — Part 1101April 12, 2012, 11:35 p.m.
Number Sequence — Part 3108April 12, 2012, 11:18 a.m.
Number Sequence — Part 2100April 11, 2012, 8:21 p.m.
Affine Codes / Modulo Arithmetic with N / Extended Euclid100April 11, 2012, 5:38 p.m.
One-Time Pad with Flaws100April 11, 2012, 4:04 p.m.
Caesar Encryption100April 11, 2012, 10:39 a.m.
Original Caesar Cipher100April 10, 2012, 7:43 p.m.
Number Sequence100April 10, 2012, 7:28 p.m.

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