| Date | User | Challenge | Score |
| M1D0R1M4 | Working with Fields | 10 | |
| query123 | XOR Properties | 15 | |
| MDMT59 | ASCII | 5 | |
| mikaaaw | Hex | 5 | |
| shamMK | XOR Properties | 15 | |
| Xiiviio | ASCII | 5 | |
| dkum | You either know, XOR you don't | 30 | |
| Xiiviio | Great Snakes | 3 | |
| holiday | You either know, XOR you don't | 30 | |
| fallsSentinel | XOR Starter | 10 | |
| MDMT59 | Great Snakes | 3 | |
| mikaaaw | ASCII | 5 | |
| MDMT59 | Finding Flags | 2 | |
| Alex1405 | Great Snakes | 3 | |
| 4ndr3w | Greatest Common Divisor | 15 | |
| DownOnEarth | Working with Fields | 10 | |
| KATEKI | ASCII | 5 | |
| dkum | Favourite byte | 20 | |
| DownOnEarth | Modulus Inutilis | 50 | |
| cryptotti | RSA Decryption | 20 | |
| NullPointer03 | Base64 | 10 | |
| KATEKI | Great Snakes | 3 | |
| Alex1405 | Finding Flags | 2 | |
| Zuzix | Cofactor Cofantasy | 150 | |
| mikaaaw | Great Snakes | 3 | |
| jasonbourne | Modes of Operation Starter | 15 | |
| Anjie98 | Keyed Permutations | 5 | |
| KATEKI | Finding Flags | 2 | |
| Xiiviio | Finding Flags | 2 | |
| NullPointer03 | Hex | 5 | |
| yass03 | Hex | 5 | |
| shahar01 | Greatest Common Divisor | 15 | |
| Jeremial | Favourite byte | 20 | |
| jasonbourne | Bringing It All Together | 50 | |
| mikaaaw | Finding Flags | 2 | |
| Zeyep | ASCII | 5 | |
| ayunuratiffah | Everything is Still Big | 100 | |
| s5k6y7 | Keyed Permutations | 5 | |
| shahar01 | You either know, XOR you don't | 30 | |
| L_0082 | ASCII | 5 | |
| Cezary | Legendre Symbol | 35 | |
| NullPointer03 | ASCII | 5 | |
| wuwuaoao | Base64 | 10 | |
| s5k6y7 | Modular Binomials | 80 | |
| wuwuaoao | Hex | 5 | |
| ayunuratiffah | ASCII | 5 | |
| query123 | XOR Starter | 10 | |
| Zeyep | Great Snakes | 3 | |
| wuwuaoao | ASCII | 5 | |
| ayunuratiffah | Great Snakes | 3 |
You are now level Current level