| Date | User | Challenge | Score |
| xccnnaino | Jack's Birthday Hash | 20 | |
| ly10yue | Modular Arithmetic 1 | 20 | |
| OriontDev | Factoring | 15 | |
| ly10yue | Modular Inverting | 25 | |
| er | Base64 | 10 | |
| OriontDev | Public Keys | 15 | |
| ly10yue | Modular Arithmetic 2 | 20 | |
| 0xki | Curves and Logs | 40 | |
| OriontDev | XOR Properties | 15 | |
| Megablaze | ASCII | 5 | |
| kalixtro | Hex | 5 | |
| 0xki | Scalar Multiplication | 35 | |
| ly10yue | Extended GCD | 20 | |
| moonheesung | Trust Games | 150 | |
| 0xki | Point Addition | 30 | |
| 0xki | Point Negation | 10 | |
| ly10yue | Greatest Common Divisor | 15 | |
| 0xki | Background Reading | 5 | |
| Megablaze | Greatest Common Divisor | 15 | |
| 0xki | Token Appreciation | 5 | |
| Aritsi | Favourite byte | 20 | |
| 0xki | Finding Flags | 2 | |
| otakucomrade | Greatest Common Divisor | 15 | |
| francesco12311 | Keyed Permutations | 5 | |
| mii7iim | Great Snakes | 3 | |
| mii7iim | Finding Flags | 2 | |
| oxlulz | XOR Properties | 15 | |
| er | Hex | 5 | |
| qwra | Scalar Multiplication | 35 | |
| zhubat | Round Keys | 20 | |
| QWXXHSX123 | Smooth Criminal | 60 | |
| Abdallah_Cyber7 | Chinese Remainder Theorem | 40 | |
| kalixtro | ASCII | 5 | |
| rafaield06 | Finding Flags | 2 | |
| ZiggyNorton | Chinese Remainder Theorem | 40 | |
| Abdallah_Cyber7 | Modular Square Root | 35 | |
| er | ASCII | 5 | |
| ___d_z___ | Quadratic Residues | 25 | |
| kalixtro | Great Snakes | 3 | |
| Abdallah_Cyber7 | Legendre Symbol | 35 | |
| belajarr | XOR Starter | 10 | |
| Abdallah_Cyber7 | Bringing It All Together | 50 | |
| b1b00www | Null or Never | 100 | |
| kalixtro | Finding Flags | 2 | |
| Abdallah_Cyber7 | Diffusion through Permutation | 30 | |
| Gabal | XOR Starter | 10 | |
| archex | Curveball | 100 | |
| Abdallah_Cyber7 | Confusion through Substitution | 25 | |
| belajarr | Encoding Challenge | 40 | |
| malak_maythim | Network Attacks | 5 |
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