| Date | User | Challenge | Score |
| ahmed1hossam | Finding Flags | 2 | |
| Qasem | Bean Counter | 60 | |
| HeNeos | Modular Binomials | 80 | |
| bilel_hammemi | ASCII | 5 | |
| Qasem | Symmetry | 50 | |
| LoreK_ | You either know, XOR you don't | 30 | |
| Qasem | Flipping Cookie | 60 | |
| LoreK_ | Favourite byte | 20 | |
| Hacking_01 | Euler's Totient | 20 | |
| bilel_hammemi | Great Snakes | 3 | |
| Blackmagic99887 | Adrien's Signs | 80 | |
| LoreK_ | XOR Properties | 15 | |
| Blackmagic99887 | Chinese Remainder Theorem | 40 | |
| Blackmagic99887 | Modular Square Root | 35 | |
| bilel_hammemi | Finding Flags | 2 | |
| LoreK_ | XOR Starter | 10 | |
| Blackmagic99887 | Legendre Symbol | 35 | |
| Blackmagic99887 | Quadratic Residues | 25 | |
| selectko | Favourite byte | 20 | |
| Blackmagic99887 | Modular Inverting | 25 | |
| Blackmagic99887 | Modular Arithmetic 2 | 20 | |
| kynex7510 | Square Eyes | 35 | |
| Blackmagic99887 | Modular Arithmetic 1 | 20 | |
| Blackmagic99887 | Extended GCD | 20 | |
| Hacking_01 | Public Keys | 15 | |
| Blackmagic99887 | Greatest Common Divisor | 15 | |
| LoreK_ | Encoding Challenge | 40 | |
| Qasem | ECB CBC WTF | 55 | |
| Blackmagic99887 | You either know, XOR you don't | 30 | |
| FRENZY1337 | Do you have good eyes? (Breizh CTF) | 0 | |
| maoiwih | Dancing Queen | 120 | |
| Qasem | ECB Oracle | 60 | |
| maoiwih | Stream of Consciousness | 80 | |
| maoiwih | Logon Zero | 80 | |
| maoiwih | CTRIME | 70 | |
| abdo_posidon_31 | Finding Flags | 2 | |
| selectko | XOR Properties | 15 | |
| Hamoud | Twin Keys | 100 | |
| Qasem | Passwords as Keys | 50 | |
| ATDS | Hex | 5 | |
| LoreK_ | Bytes and Big Integers | 10 | |
| Qasem | Modes of Operation Starter | 15 | |
| LoreK_ | Base64 | 10 | |
| Qasem | Bringing It All Together | 50 | |
| LoreK_ | Hex | 5 | |
| ATDS | ASCII | 5 | |
| Jerojasv2605 | Private Keys | 20 | |
| Jerojasv2605 | Euler's Totient | 20 | |
| Qasem | Diffusion through Permutation | 30 | |
| maoiwih | Bean Counter | 60 |
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