| Date | User | Challenge | Score |
| The_Pug | Network Attacks | 5 | |
| Panflute2160 | Structure of AES | 15 | |
| mppl2409 | Modes of Operation Starter | 15 | |
| vaioskl | Bytes and Big Integers | 10 | |
| bomboclatpanos | Bytes and Big Integers | 10 | |
| kmark | Base64 | 10 | |
| yetehe0 | Chinese Remainder Theorem | 40 | |
| mits_akos | Modular Inverting | 25 | |
| ascensi10 | Legendre Symbol | 35 | |
| kmark | Hex | 5 | |
| SpaceOddity | Base64 | 10 | |
| kmark | ASCII | 5 | |
| mits_akos | Modular Arithmetic 2 | 20 | |
| kmark | Great Snakes | 3 | |
| SpaceOddity | Hex | 5 | |
| kmark | Finding Flags | 2 | |
| MrD | Modular Arithmetic 1 | 20 | |
| mits_akos | Modular Arithmetic 1 | 20 | |
| pavel_bass | Chinese Remainder Theorem | 40 | |
| Pixolotl16 | Chinese Remainder Theorem | 40 | |
| pavel_bass | Modular Square Root | 35 | |
| Pixolotl16 | Modular Square Root | 35 | |
| vasiliskintis | Saying Hello | 20 | |
| Taslimun | Adrien's Signs | 80 | |
| SpaceOddity | ASCII | 5 | |
| mits_akos | Extended GCD | 20 | |
| Mejkl | Non-Interactive | 35 | |
| pavel_bass | Legendre Symbol | 35 | |
| AVitali | Quadratic Residues | 25 | |
| NickZolotas | Generators of Groups | 20 | |
| vaioskl | Base64 | 10 | |
| SpaceOddity | Great Snakes | 3 | |
| DIMITRISMANIATIS | Favourite byte | 20 | |
| Pixolotl16 | Legendre Symbol | 35 | |
| talayhan | Bruce Schneier's Password: Part 2 | 250 | |
| oGAD_ | Lemur XOR | 40 | |
| DIMITRISMANIATIS | XOR Properties | 15 | |
| nizarr | Diffusion through Permutation | 30 | |
| vaioskl | Hex | 5 | |
| orestismks | JWT Secrets | 25 | |
| orestismks | No Way JOSE | 20 | |
| MrD | Extended GCD | 20 | |
| mits_akos | Greatest Common Divisor | 15 | |
| Mejkl | Honest Verifier Zero Knowledge | 30 | |
| cortex12345 | Legendre Symbol | 35 | |
| DIMITRISMANIATIS | XOR Starter | 10 | |
| Gl1tch2026 | ZKP Introduction | 5 | |
| Gl1tch2026 | Introduction to Isogenies | 10 | |
| DIMITRISMANIATIS | Bytes and Big Integers | 10 | |
| The_Pug | Base64 | 10 |
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