| Date | User | Challenge | Score |
| 01xVOID | Hex | 5 | |
| f2ri2 | Modular Arithmetic 2 | 20 | |
| GINO_IL_P4TATINO | Smooth Criminal | 60 | |
| ds0xxd3r | ECB Oracle | 60 | |
| Megablaze | Base64 | 10 | |
| Megablaze | Hex | 5 | |
| MahmoodTavafoghi | Extended GCD | 20 | |
| Megablaze | Great Snakes | 3 | |
| Hanan | Base64 | 10 | |
| chai770 | Where's the Supersingular Curve | 25 | |
| f2ri2 | Modular Arithmetic 1 | 20 | |
| Hanan | Hex | 5 | |
| jskeob | Flipping Cookie | 60 | |
| feynhat | Point Negation | 10 | |
| Hanan | ASCII | 5 | |
| nprat | Legendre Symbol | 35 | |
| RawanCys | Great Snakes | 3 | |
| ox1bx | Nativity | 60 | |
| Hanan | Great Snakes | 3 | |
| Loivan | Quadratic Residues | 25 | |
| f2ri2 | Extended GCD | 20 | |
| Loivan | Modular Inverting | 25 | |
| Loivan | Modular Arithmetic 2 | 20 | |
| Loivan | Modular Arithmetic 1 | 20 | |
| feynhat | Background Reading | 5 | |
| Loivan | Extended GCD | 20 | |
| chai770 | The j-invariant | 20 | |
| Cookies_ | ECB CBC WTF | 55 | |
| ox1bx | Modulus Inutilis | 50 | |
| RawanCys | Finding Flags | 2 | |
| ox1bx | Endless Emails | 150 | |
| alfattd | You either know, XOR you don't | 30 | |
| ziru | Modular Binomials | 80 | |
| ox1bx | Manyprime | 40 | |
| Nimadli | You either know, XOR you don't | 30 | |
| 01xVOID | ASCII | 5 | |
| jdkko | Finding Flags | 2 | |
| Htet | Triple DES | 60 | |
| crowcell | Modular Arithmetic 2 | 20 | |
| ox1bx | Noise Free | 40 | |
| 01xVOID | Great Snakes | 3 | |
| Htet | Lazy CBC | 60 | |
| 01xVOID | Finding Flags | 2 | |
| dackelberg | ASCII | 5 | |
| Htet | Flipping Cookie | 60 | |
| ox1bx | LWE Low Bits Message | 20 | |
| ox1bx | LWE High Bits Message | 15 | |
| dackelberg | Great Snakes | 3 | |
| crowcell | Modular Arithmetic 1 | 20 | |
| Htet | ECB Oracle | 60 |
You are now level Current level