| Date | User | Challenge | Score |
| Scott_0x | Extended GCD | 20 | |
| rycbarm123 | Manyprime | 40 | |
| kostpergan | Manyprime | 40 | |
| alisa | Modulus Inutilis | 50 | |
| Thanoslaimo | Base64 | 10 | |
| Mahmoud7 | Base64 | 10 | |
| alisa | Salty | 20 | |
| Thanoslaimo | Hex | 5 | |
| bitazar | Blinding Light | 120 | |
| Ahmed_Jaddou | Extended GCD | 20 | |
| NOXRe2 | Quadratic Residues | 25 | |
| Simo | Mister Saplin's Preview | 80 | |
| ErnikH | XOR Starter | 10 | |
| ErnikH | Bytes and Big Integers | 10 | |
| Ahmed_Jaddou | Greatest Common Divisor | 15 | |
| ks1e7yc | Resisting Bruteforce | 10 | |
| Ahmed_Jaddou | You either know, XOR you don't | 30 | |
| ks1e7yc | Keyed Permutations | 5 | |
| Rhodiumbird | Favourite byte | 20 | |
| TnT_DG | Computing Public Values | 25 | |
| karoldus | Mixed Up | 120 | |
| TnT_DG | Generators of Groups | 20 | |
| TnT_DG | Working with Fields | 10 | |
| Thanoslaimo | ASCII | 5 | |
| zer0net | You either know, XOR you don't | 30 | |
| Minty_meteor4 | Favourite byte | 20 | |
| Ahmed_Jaddou | Favourite byte | 20 | |
| TnT_DG | Modulus Inutilis | 50 | |
| Thanoslaimo | Great Snakes | 3 | |
| zer0net | Favourite byte | 20 | |
| Mahmoud7 | Hex | 5 | |
| NOXRe2 | Modular Inverting | 25 | |
| 1amperk | Extended GCD | 20 | |
| Thanoslaimo | Finding Flags | 2 | |
| zer0net | XOR Properties | 15 | |
| Afaf | Vote for Pedro | 150 | |
| Mahmoud7 | ASCII | 5 | |
| taina | Megalomaniac 2 | 120 | |
| fool12321 | Bytes and Big Integers | 10 | |
| xem1r | Greatest Common Divisor | 15 | |
| Boogaloo | You either know, XOR you don't | 30 | |
| TnT_DG | Salty | 20 | |
| Afaf | Blinding Light | 120 | |
| ErnikH | Base64 | 10 | |
| Afaf | Let's Decrypt | 80 | |
| Afaf | Signing Server | 60 | |
| Afaf | Null or Never | 100 | |
| Rhodiumbird | XOR Properties | 15 | |
| fool12321 | Base64 | 10 | |
| itamar_rot | Elliptic Nodes | 150 |
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