| The Syllabary Cipher – Part 1 | 100 | Nov. 20, 2023, 12:23 a.m. |
| Monoalphabetic Substitution | 100 | Jan. 13, 2019, 1:05 p.m. |
| A modified homophonic cipher with reduced alphabets — Part 2 | 100 | Jan. 12, 2019, 10:55 p.m. |
| Factorization Cipher — Part 1 | 100 | Jan. 12, 2019, 6:21 p.m. |
| ¿No Hablas Español? No problemo! | 100 | Jan. 6, 2019, 9:53 p.m. |
| How do you become a big cryptographer? | 100 | Jan. 6, 2019, 9:09 p.m. |
| Letter to the Templars — Part 3 | 1,094 | Jan. 3, 2019, 12:53 p.m. |
| Letter to the Templars — Part 2 | 100 | Jan. 3, 2019, 12:04 p.m. |
| Letter to the Templars — Part 1 | 100 | Jan. 3, 2019, 11:50 a.m. |
| Multilingual Monoalphabetic Substitution | 100 | Dec. 31, 2018, 2:09 p.m. |
| Affine Codes / Modulo Arithmetic with N / Extended Euclid | 100 | Dec. 28, 2018, 12:17 p.m. |
| Number Sequence — Part 9 | 100 | Dec. 26, 2018, 12:55 p.m. |
| Number Sequence — Part 6 | 100 | Dec. 26, 2018, 12:44 p.m. |
| Beaver Code | 100 | Dec. 26, 2018, 11:59 a.m. |
| M-138 — Part 1 | 100 | Dec. 25, 2018, 11:45 p.m. |
| Caesar Encryption | 100 | Dec. 24, 2018, 11:55 p.m. |
| Advent-Challenge — Part 1 | 100 | Dec. 24, 2018, 7:38 p.m. |
| Number Sequence — Part 2 | 100 | Dec. 24, 2018, 12:12 p.m. |
| Number Sequence | 100 | Dec. 24, 2018, 12:08 p.m. |
| Original Caesar Cipher | 100 | Dec. 24, 2018, 11:33 a.m. |