| Date | User | Challenge | Score |
| lty748 | Manyprime | 40 | |
| cadenv | Great Snakes | 3 | |
| Devcombat | Favourite byte | 20 | |
| cyberbandit74 | Quadratic Residues | 25 | |
| cadenv | Finding Flags | 2 | |
| shhack96 | Montgomery's Ladder | 40 | |
| rexaa | Great Snakes | 3 | |
| cyberbandit74 | Modular Inverting | 25 | |
| kvorr | Keyed Permutations | 5 | |
| Waterboy | Finding Flags | 2 | |
| Devcombat | XOR Properties | 15 | |
| cyberbandit74 | Modular Arithmetic 2 | 20 | |
| kvorr | Modular Inverting | 25 | |
| friedchilin | Public Keys | 15 | |
| spoookyfiish | ZKP Introduction | 5 | |
| kvorr | Modular Arithmetic 2 | 20 | |
| kvorr | Modular Arithmetic 1 | 20 | |
| cyberbandit74 | Modular Arithmetic 1 | 20 | |
| Novitcitc | Base64 | 10 | |
| mrthekiller | Greatest Common Divisor | 15 | |
| cyberbandit74 | Extended GCD | 20 | |
| mrthekiller | You either know, XOR you don't | 30 | |
| namdang | Moving Problems | 150 | |
| Devcombat | XOR Starter | 10 | |
| shhack96 | Efficient Exchange | 50 | |
| cyberbandit74 | Greatest Common Divisor | 15 | |
| Novitcitc | Hex | 5 | |
| shhack96 | Curves and Logs | 40 | |
| LanceM | Hex | 5 | |
| Devcombat | Bytes and Big Integers | 10 | |
| CCcat | No Way Back Home | 100 | |
| ltwind_v2 | Decrypting TLS 1.3 | 35 | |
| friedchilin | Modular Exponentiation | 10 | |
| cyberbandit74 | You either know, XOR you don't | 30 | |
| cyberbandit74 | Favourite byte | 20 | |
| Novitcitc | ASCII | 5 | |
| Novitcitc | Great Snakes | 3 | |
| Novitcitc | Finding Flags | 2 | |
| oiu890 | Flipping Cookie | 60 | |
| shaojunzhen | ASCII | 5 | |
| marcofireball84 | Manyprime | 40 | |
| shaojunzhen | Great Snakes | 3 | |
| shaojunzhen | Finding Flags | 2 | |
| marcofireball84 | Monoprime | 30 | |
| marcofireball84 | Factoring | 15 | |
| KKB05 | Base64 | 10 | |
| marcofireball84 | RSA Signatures | 25 | |
| florianbrozek | ASCII | 5 | |
| florianbrozek | Great Snakes | 3 | |
| florianbrozek | Finding Flags | 2 |
You are now level Current level