| Date | User | Challenge | Score |
| hedge_hedgehog | Working with Fields | 10 | |
| 525290_123 | Quadratic Residues | 25 | |
| Mai47 | Diffusion through Permutation | 30 | |
| romadev | Hex | 5 | |
| Spire | ECLCG (HITCON CTF) | 0 | |
| Shyamama | You either know, XOR you don't | 30 | |
| Namunamu | Token Appreciation | 5 | |
| ChinoCribioli | Non-Interactive | 35 | |
| Ferm1 | Bytes and Big Integers | 10 | |
| 525290_123 | Modular Inverting | 25 | |
| Duster | Curves and Logs | 40 | |
| 525290_123 | Modular Arithmetic 2 | 20 | |
| Shyamama | Favourite byte | 20 | |
| Duster | Scalar Multiplication | 35 | |
| Ferm1 | Base64 | 10 | |
| seqo | Modular Inverting | 25 | |
| Katherine | Modular Inverting | 25 | |
| 525290_123 | Modular Arithmetic 1 | 20 | |
| minhgiaubeo | Base64 | 10 | |
| richmoneybank479 | CERTainly not | 30 | |
| Ferm1 | Hex | 5 | |
| Shyamama | XOR Properties | 15 | |
| Duster | Point Addition | 30 | |
| 525290_123 | Extended GCD | 20 | |
| sp1n0z4 | Marin's Secrets | 50 | |
| ChinoCribioli | Honest Verifier Zero Knowledge | 30 | |
| Ferm1 | ASCII | 5 | |
| nao_sei | You either know, XOR you don't | 30 | |
| sp1n0z4 | Infinite Descent | 50 | |
| Ferm1 | Great Snakes | 3 | |
| igrdvd13 | Base64 | 10 | |
| igrdvd13 | Hex | 5 | |
| 525290_123 | Greatest Common Divisor | 15 | |
| Ferm1 | Finding Flags | 2 | |
| Honoured_One | Legendre Symbol | 35 | |
| Mai47 | Confusion through Substitution | 25 | |
| KrunkerIO | Confusion through Substitution | 25 | |
| richmoneybank479 | Privacy-Enhanced Mail? | 25 | |
| nao_sei | Favourite byte | 20 | |
| t4l | Special Soundness | 25 | |
| nao_sei | XOR Properties | 15 | |
| sp1n0z4 | Everything is Still Big | 100 | |
| seqo | Modular Arithmetic 2 | 20 | |
| Duster | Point Negation | 10 | |
| Marchet_91 | Quadratic Residues | 25 | |
| Cyberstudent | Bytes and Big Integers | 10 | |
| Thalji | Transparency | 50 | |
| Thalji | SSH Keys | 35 | |
| sp1n0z4 | Transparency | 50 | |
| Thalji | CERTainly not | 30 |
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