| Date | User | Challenge | Score |
| ox1bx | Modular Inverting | 25 | |
| cryptodem0 | An Evil Twisted Mind | 175 | |
| ox1bx | Modular Arithmetic 1 | 20 | |
| JCPTY507 | Finding Flags | 2 | |
| Nemo2002 | Modular Square Root | 35 | |
| ox1bx | Extended GCD | 20 | |
| ox1bx | Lemur XOR | 40 | |
| kalixtro | Network Attacks | 5 | |
| dangphuc210907 | Modular Inverting | 25 | |
| ox1bx | Encoding Challenge | 40 | |
| hakka52 | What's My Kernel | 70 | |
| dangphuc210907 | Modular Arithmetic 2 | 20 | |
| ox1bx | Network Attacks | 5 | |
| provicy | Unencryptable | 125 | |
| xccnnaino | Collider | 50 | |
| handoko | ZKP Introduction | 5 | |
| Buddies | XOR Properties | 15 | |
| asanonepunch | Modular Arithmetic 1 | 20 | |
| provicy | Roll your Own | 125 | |
| DjokoHaryo | Quadratic Residues | 25 | |
| f1023n | Modular Arithmetic 2 | 20 | |
| grazkaa | Script Kiddie | 70 | |
| Buddies | XOR Starter | 10 | |
| Buddies | Bytes and Big Integers | 10 | |
| dangphuc210907 | Modular Arithmetic 1 | 20 | |
| Buddies | Base64 | 10 | |
| dangphuc210907 | Extended GCD | 20 | |
| mii7iim | XOR Starter | 10 | |
| asanonepunch | Extended GCD | 20 | |
| mii7iim | Bytes and Big Integers | 10 | |
| kalixtro | Base64 | 10 | |
| Vansforever | Extended GCD | 20 | |
| ZiggyNorton | Adrien's Signs | 80 | |
| grazkaa | Additive | 70 | |
| Buddies | Hex | 5 | |
| dangphuc210907 | Greatest Common Divisor | 15 | |
| VxRabbit | Quadratic Residues | 25 | |
| Vansforever | Greatest Common Divisor | 15 | |
| mii7iim | Base64 | 10 | |
| OriontDev | Monoprime | 30 | |
| mii7iim | Hex | 5 | |
| Jacob883 | Finding Flags | 2 | |
| rafaield06 | Great Snakes | 3 | |
| mii7iim | ASCII | 5 | |
| xccnnaino | Jack's Birthday Confusion | 30 | |
| cryptodem0 | LFSR Destroyer | 250 | |
| cryptodem0 | Let's Prove It Again | 175 | |
| cryptodem0 | Let's Prove It | 120 | |
| cryptodem0 | Real Curve Crypto | 200 | |
| cryptodem0 | An Exceptional Twisted Mind | 125 |
You are now level Current level