| Date | User | Challenge | Score |
| ShahnewasAhmed | Great Snakes | 3 | |
| ShahnewasAhmed | Finding Flags | 2 | |
| Juha | ASCII | 5 | |
| Juha | Great Snakes | 3 | |
| starnotes | Greatest Common Divisor | 15 | |
| aizz | XOR Starter | 10 | |
| vr7xl | Chinese Remainder Theorem | 40 | |
| starnotes | You either know, XOR you don't | 30 | |
| YWzhong | CTRIME | 70 | |
| Juha | Finding Flags | 2 | |
| aizz | Bytes and Big Integers | 10 | |
| starnotes | Favourite byte | 20 | |
| aizz | Base64 | 10 | |
| ra1 | Finding Flags | 2 | |
| brew | Lazy CBC | 60 | |
| starnotes | XOR Properties | 15 | |
| RIFTTT | Finding Flags | 2 | |
| aizz | Hex | 5 | |
| aizz | ASCII | 5 | |
| starnotes | XOR Starter | 10 | |
| vr7xl | Modular Square Root | 35 | |
| Htet | Null or Never | 100 | |
| aizz | Great Snakes | 3 | |
| BADWARE | Bytes and Big Integers | 10 | |
| starnotes | Bytes and Big Integers | 10 | |
| aizz | Finding Flags | 2 | |
| Sah | CERTainly not | 30 | |
| starnotes | Base64 | 10 | |
| cccaowl | Hex | 5 | |
| starnotes | Hex | 5 | |
| BADWARE | Base64 | 10 | |
| BADWARE | Hex | 5 | |
| BADWARE | ASCII | 5 | |
| starnotes | ASCII | 5 | |
| cccaowl | ASCII | 5 | |
| starnotes | Great Snakes | 3 | |
| starnotes | Finding Flags | 2 | |
| BADWARE | Great Snakes | 3 | |
| BADWARE | Finding Flags | 2 | |
| Sah | Network Attacks | 5 | |
| OutOfTheWell | Find the Lattice | 100 | |
| PJ696769 | RSA Decryption | 20 | |
| walter_linares | Base64 | 10 | |
| PJ696769 | Private Keys | 20 | |
| vr7xl | Legendre Symbol | 35 | |
| PJ696769 | Euler's Totient | 20 | |
| j_m | Let's Prove It | 120 | |
| KathAlgarin | You either know, XOR you don't | 30 | |
| KathAlgarin | Favourite byte | 20 | |
| KathAlgarin | XOR Properties | 15 |
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