| Date | User | Challenge | Score |
| zmenger | Hex | 5 | |
| shaked_srabstein | Collider | 50 | |
| AmaiYoshi | Finding Flags | 2 | |
| mcarrow | Modular Arithmetic 2 | 20 | |
| mcarrow | Modular Arithmetic 1 | 20 | |
| zmenger | ASCII | 5 | |
| lehoangthi | Hex | 5 | |
| nofile | Finding Flags | 2 | |
| zmenger | Great Snakes | 3 | |
| thisismetrying | Bean Counter | 60 | |
| johnyyhere | Great Snakes | 3 | |
| zmenger | Finding Flags | 2 | |
| johnyyhere | Finding Flags | 2 | |
| lehoangthi | ASCII | 5 | |
| ZeroTolerance | Legendre Symbol | 35 | |
| bluesky2113 | ProSign 3 | 100 | |
| pseudostate | Everything is Still Big | 100 | |
| HarryKen | ASCII | 5 | |
| lehoangthi | Great Snakes | 3 | |
| bashu | Base64 | 10 | |
| bashu | Hex | 5 | |
| HarryKen | Great Snakes | 3 | |
| HarryKen | Finding Flags | 2 | |
| m3n059 | Endless Emails | 150 | |
| nikita203232 | Jack's Birthday Hash | 20 | |
| creo | Finding Flags | 2 | |
| revenue | Confusion through Substitution | 25 | |
| sundul969 | Beatboxer | 150 | |
| yawanxuan | Confusion through Substitution | 25 | |
| hiroki | Base64 | 10 | |
| Minico | Token Appreciation | 5 | |
| ABCSlime | Signing Server | 60 | |
| eureka | Modular Arithmetic 1 | 20 | |
| sundul969 | Bringing It All Together | 50 | |
| sundul969 | Diffusion through Permutation | 30 | |
| sundul969 | Confusion through Substitution | 25 | |
| sundul969 | Round Keys | 20 | |
| sundul969 | Structure of AES | 15 | |
| hiroki | Hex | 5 | |
| Noja | Great Snakes | 3 | |
| Minico | You either know, XOR you don't | 30 | |
| CutRaNgoai | You either know, XOR you don't | 30 | |
| Noja | Finding Flags | 2 | |
| sundul969 | Resisting Bruteforce | 10 | |
| sundul969 | Keyed Permutations | 5 | |
| husnain123 | Keyed Permutations | 5 | |
| zaire | Round Keys | 20 | |
| jaatshahwat | Finding Flags | 2 | |
| Cryb | Base64 | 10 | |
| Doubleraptor | Great Snakes | 3 |
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