| Date | User | Challenge | Score |
| sjvvvv | Modular Inverting | 25 | |
| sjvvvv | Modular Arithmetic 2 | 20 | |
| sjvvvv | Modular Arithmetic 1 | 20 | |
| sjvvvv | Extended GCD | 20 | |
| isacq | Base64 | 10 | |
| sjvvvv | Greatest Common Divisor | 15 | |
| rain_cloud | JWT Secrets | 25 | |
| danny05 | RSA Decryption | 20 | |
| danny05 | Private Keys | 20 | |
| isacq | ASCII | 5 | |
| danny05 | Euler's Totient | 20 | |
| danny05 | Public Keys | 15 | |
| sjvvvv | You either know, XOR you don't | 30 | |
| Pompo | Adrien's Signs | 80 | |
| danny05 | Modular Exponentiation | 10 | |
| Nyunseo | Manyprime | 40 | |
| isacq | Hex | 5 | |
| sjvvvv | Favourite byte | 20 | |
| sjvvvv | XOR Properties | 15 | |
| eagle49 | Base64 | 10 | |
| sjvvvv | XOR Starter | 10 | |
| sjvvvv | Bytes and Big Integers | 10 | |
| sjvvvv | Hex | 5 | |
| sjvvvv | ASCII | 5 | |
| sjvvvv | Great Snakes | 3 | |
| lelek | You either know, XOR you don't | 30 | |
| belalmohamed3690 | XOR Starter | 10 | |
| belalmohamed3690 | Bytes and Big Integers | 10 | |
| lael | Finding Flags | 2 | |
| joao_nogueira | Round Keys | 20 | |
| mrbdj | ASCII | 5 | |
| mrbdj | Great Snakes | 3 | |
| mrbdj | Finding Flags | 2 | |
| Namunamu | CTRIME | 70 | |
| THETOPO | Modular Arithmetic 1 | 20 | |
| icytiger363 | Greatest Common Divisor | 15 | |
| niwi | XOR Starter | 10 | |
| belalmohamed3690 | Base64 | 10 | |
| belalmohamed3690 | Hex | 5 | |
| isacq | Network Attacks | 5 | |
| GingerCarrot | Mister Saplins The Prover | 125 | |
| M7Z_M7Z0069 | Favourite byte | 20 | |
| eagle49 | Hex | 5 | |
| belalmohamed3690 | ASCII | 5 | |
| isacq | Great Snakes | 3 | |
| belalmohamed3690 | Great Snakes | 3 | |
| isacq | Finding Flags | 2 | |
| eagle49 | ASCII | 5 | |
| niwi | Modular Arithmetic 2 | 20 | |
| belalmohamed3690 | Finding Flags | 2 |
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