| Date | User | Challenge | Score |
| rottate | Salty | 20 | |
| benito255 | Hamiltonicity 1 | 100 | |
| benito255 | Hamiltonicity (CryptoHack) | 0 | |
| rottate | Manyprime | 40 | |
| rush_i | Symmetry | 50 | |
| Heba_Ajjour | Modular Arithmetic 1 | 20 | |
| MicFur | Favourite byte | 20 | |
| xseris | Abelian SIDH | 90 | |
| vionix214 | Bytes and Big Integers | 10 | |
| rottate | Monoprime | 30 | |
| vionix214 | Base64 | 10 | |
| Shrikrishna | LWE Intro | 10 | |
| vionix214 | Hex | 5 | |
| vionix214 | ASCII | 5 | |
| Shrikrishna | LWE Background | 5 | |
| an_nika3 | Base64 | 10 | |
| benito255 | OR Proof (CryptoHack) | 0 | |
| benito255 | OR Proof | 75 | |
| rottate | Factoring | 15 | |
| an_nika3 | Hex | 5 | |
| vionix214 | Network Attacks | 5 | |
| an_nika3 | ASCII | 5 | |
| rottate | RSA Signatures | 25 | |
| Heba_Ajjour | Extended GCD | 20 | |
| an_nika3 | Great Snakes | 3 | |
| rottate | RSA Decryption | 20 | |
| rottate | Private Keys | 20 | |
| vincnet | XOR Starter | 10 | |
| rottate | Euler's Totient | 20 | |
| an_nika3 | Finding Flags | 2 | |
| quantum_leaper82 | ASCII | 5 | |
| MicFur | XOR Properties | 15 | |
| 4AAA4 | Passwords as Keys | 50 | |
| vionix214 | Great Snakes | 3 | |
| vionix214 | Finding Flags | 2 | |
| schittering06 | Base64 | 10 | |
| hunnter | Dancing Queen | 120 | |
| schittering06 | Hex | 5 | |
| schittering06 | ASCII | 5 | |
| schittering06 | Great Snakes | 3 | |
| schittering06 | Finding Flags | 2 | |
| Mujeeb_U_Rehman | Modular Inverting | 25 | |
| Duckart | Deriving Symmetric Keys | 40 | |
| xseris | Better than Linear | 85 | |
| Shadow_Cipher | Finding Flags | 2 | |
| sixsquareAI | Breaking SIDH | 250 | |
| wajdi | ASCII | 5 | |
| wajdi | Great Snakes | 3 | |
| guy_gart | Favourite byte | 20 | |
| Bekashy | Bytes and Big Integers | 10 |
You are now level Current level