| Date | User | Challenge | Score |
| evenfall | ASCII | 5 | |
| Marwa_Ayman | Adrien's Signs | 80 | |
| Lemon28 | ASCII | 5 | |
| purely553 | Lemur XOR | 40 | |
| jeanchpt | Montgomery's Ladder | 40 | |
| Lemon28 | Great Snakes | 3 | |
| evenfall | Great Snakes | 3 | |
| evenfall | Finding Flags | 2 | |
| Lemon28 | Finding Flags | 2 | |
| PANAGIOTA_ZNT | Legendre Symbol | 35 | |
| PANAGIOTA_ZNT | Quadratic Residues | 25 | |
| PANAGIOTA_ZNT | Modular Inverting | 25 | |
| PANAGIOTA_ZNT | Modular Arithmetic 2 | 20 | |
| PANAGIOTA_ZNT | Modular Arithmetic 1 | 20 | |
| PANAGIOTA_ZNT | Extended GCD | 20 | |
| PANAGIOTA_ZNT | Greatest Common Divisor | 15 | |
| Halgos | Modular Binomials | 80 | |
| MatWoj99 | Merkle Trees | 25 | |
| PANAGIOTA_ZNT | You either know, XOR you don't | 30 | |
| PANAGIOTA_ZNT | Favourite byte | 20 | |
| PANAGIOTA_ZNT | XOR Properties | 15 | |
| MrD | Symmetry | 50 | |
| Hellothere | XOR Starter | 10 | |
| Googo | Factoring | 15 | |
| PANAGIOTA_ZNT | XOR Starter | 10 | |
| ayanatbb | Modular Inverting | 25 | |
| Hellothere | Bytes and Big Integers | 10 | |
| Halgos | Adrien's Signs | 80 | |
| ayanatbb | Modular Arithmetic 2 | 20 | |
| MatWoj99 | PriMeD5 | 100 | |
| PANAGIOTA_ZNT | Bytes and Big Integers | 10 | |
| MrD | Flipping Cookie | 60 | |
| PANAGIOTA_ZNT | Base64 | 10 | |
| Hellothere | Base64 | 10 | |
| ayanatbb | Modular Arithmetic 1 | 20 | |
| ayanatbb | Extended GCD | 20 | |
| PANAGIOTA_ZNT | Hex | 5 | |
| Hellothere | Hex | 5 | |
| spork | Extended GCD | 20 | |
| Hellothere | ASCII | 5 | |
| Hellothere | Great Snakes | 3 | |
| adanaboshnde | Computing Shared Secrets | 30 | |
| PANAGIOTA_ZNT | ASCII | 5 | |
| whit3g4ndalf | Parameter Injection | 60 | |
| Hellothere | Finding Flags | 2 | |
| PANAGIOTA_ZNT | Great Snakes | 3 | |
| arp1t0x | Hex | 5 | |
| ayanatbb | Greatest Common Divisor | 15 | |
| kokkalakos | Working with Fields | 10 | |
| layth_j | Resisting Bruteforce | 10 |
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