| Date | User | Challenge | Score |
| haroune8987 | You either know, XOR you don't | 30 | |
| candour | Adrien's Signs | 80 | |
| Ancines | Hex | 5 | |
| jraymant | ASCII | 5 | |
| Solitarius1upus | XOR Properties | 15 | |
| deciphr | Greatest Common Divisor | 15 | |
| Zealous8067 | Special Soundness | 25 | |
| candour | Chinese Remainder Theorem | 40 | |
| deciphr | You either know, XOR you don't | 30 | |
| jraymant | Great Snakes | 3 | |
| jraymant | Finding Flags | 2 | |
| Othi | Bytes and Big Integers | 10 | |
| deciphr | Favourite byte | 20 | |
| jbl | Modular Inverting | 25 | |
| Zealous8067 | Proofs of Knowledge | 20 | |
| mahdi_dhmn | Finding Flags | 2 | |
| sirichan0 | Great Snakes | 3 | |
| deciphr | XOR Properties | 15 | |
| haroune8987 | Favourite byte | 20 | |
| Othi | Base64 | 10 | |
| PAWOS | The Good, The Pad, The Ugly | 100 | |
| Bolster2k | Find the Lattice | 100 | |
| Zealous8067 | ZKP Introduction | 5 | |
| PatrickL_SC | WOTS Up 2 | 90 | |
| CryptLynn | Base64 | 10 | |
| v1ncent | Finding Flags | 2 | |
| b0510 | Quadratic Residues | 25 | |
| Solitarius1upus | XOR Starter | 10 | |
| Qu1n7as | Static Client 2 | 120 | |
| Siddsh | You either know, XOR you don't | 30 | |
| haroune8987 | XOR Properties | 15 | |
| CryptLynn | Hex | 5 | |
| CryptLynn | ASCII | 5 | |
| Siddsh | Favourite byte | 20 | |
| rolanp | XOR Properties | 15 | |
| Jach | Great Snakes | 3 | |
| Qu1n7as | Static Client | 100 | |
| Marwa_Ayman | Bean Counter | 60 | |
| Betel | Extended GCD | 20 | |
| Jach | Finding Flags | 2 | |
| Siddsh | XOR Properties | 15 | |
| z8v5nr4d | Efficient Exchange | 50 | |
| b0510 | Modular Inverting | 25 | |
| Betel | Greatest Common Divisor | 15 | |
| z8v5nr4d | Curves and Logs | 40 | |
| Aisultan | Unencryptable | 125 | |
| Ugo | Bytes and Big Integers | 10 | |
| Aisultan | Ellipse Curve Cryptography | 125 | |
| Aisultan | No Way Back Home | 100 | |
| Aisultan | Broken RSA | 100 |
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