| Date | User | Challenge | Score |
| dolphinned | ECB Oracle | 60 | |
| davidelchidoxd | Modular Arithmetic 2 | 20 | |
| llmuser83 | Favourite byte | 20 | |
| emam404 | Finding Flags | 2 | |
| Dannyg714 | ASCII | 5 | |
| Gianggg | Base64 | 10 | |
| yksec | Modular Square Root | 35 | |
| Gianggg | Hex | 5 | |
| caps | ECB CBC WTF | 55 | |
| BananaBad | Greatest Common Divisor | 15 | |
| Dannyg714 | Great Snakes | 3 | |
| Dannyg714 | Finding Flags | 2 | |
| mvro | Modular Inverting | 25 | |
| mvro | Modular Arithmetic 2 | 20 | |
| mvro | Lemur XOR | 40 | |
| Dan1e1B | Triple DES | 60 | |
| benmoore821 | Finding Flags | 2 | |
| Roxor | CSIDH Key Exchange | 90 | |
| davidelchidoxd | Modular Arithmetic 1 | 20 | |
| davidelchidoxd | Extended GCD | 20 | |
| mrKingMRC | Bytes and Big Integers | 10 | |
| emsa | Jack's Birthday Confusion | 30 | |
| rmn_bm | RSA Signatures | 25 | |
| Gengg_ | Bringing It All Together | 50 | |
| mastermaty | Finding Flags | 2 | |
| xetek | Finding Flags | 2 | |
| bangaAlderson | Token Appreciation | 5 | |
| DonAsako | No Leaks | 100 | |
| mrKingMRC | Base64 | 10 | |
| mrKingMRC | Hex | 5 | |
| mrKingMRC | ASCII | 5 | |
| rmn_bm | RSA Decryption | 20 | |
| twisters50 | Greatest Common Divisor | 15 | |
| DonAsako | Gotta Go Fast | 40 | |
| rmn_bm | Private Keys | 20 | |
| mrKingMRC | Great Snakes | 3 | |
| rmn_bm | Euler's Totient | 20 | |
| rmn_bm | Public Keys | 15 | |
| rmn_bm | Modular Exponentiation | 10 | |
| V1ckey | Endless Emails | 150 | |
| rmn_bm | ECB CBC WTF | 55 | |
| cyberpolyglot | You either know, XOR you don't | 30 | |
| ARM4da | Modular Inverting | 25 | |
| cyberpolyglot | Favourite byte | 20 | |
| wewawewa | ASCII | 5 | |
| cyberpolyglot | XOR Properties | 15 | |
| w0152 | ProSign 3 | 100 | |
| night_owl | Size and Basis | 15 | |
| ARM4da | Modular Arithmetic 2 | 20 | |
| Nour_El_Houda | Base64 | 10 |
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