| Date | User | Challenge | Score |
| wacatac | Successive Powers | 60 | |
| Mhdgueyeays | Great Snakes | 3 | |
| HitchYoru | Moving Problems | 150 | |
| Saphyr | Hex | 5 | |
| ErikBLUBBLUB | Hex | 5 | |
| h11p13 | RSA Signatures | 25 | |
| DownOnEarth | Round Keys | 20 | |
| wacatac | Chinese Remainder Theorem | 40 | |
| wacatac | Modular Square Root | 35 | |
| may_august | Extended GCD | 20 | |
| msheremetiev | Network Attacks | 5 | |
| msheremetiev | Great Snakes | 3 | |
| msheremetiev | Finding Flags | 2 | |
| HitchYoru | Nothing Up My Sleeve | 150 | |
| DownOnEarth | Structure of AES | 15 | |
| b1903390 | Great Snakes | 3 | |
| Saphyr | ASCII | 5 | |
| aboyreau | Finding Flags | 2 | |
| PabloAlda | Network Attacks | 5 | |
| 184540 | Modular Binomials | 80 | |
| samirakai | Bytes and Big Integers | 10 | |
| HitchYoru | Oh SNAP | 120 | |
| b1903390 | Finding Flags | 2 | |
| 184540 | Adrien's Signs | 80 | |
| Osama_189 | You either know, XOR you don't | 30 | |
| DownOnEarth | Resisting Bruteforce | 10 | |
| Kryra | Modular Binomials | 80 | |
| pewpew2 | Network Attacks | 5 | |
| anmol34 | Base64 | 10 | |
| DownOnEarth | Keyed Permutations | 5 | |
| TwoShrimp | You either know, XOR you don't | 30 | |
| ErikBLUBBLUB | ASCII | 5 | |
| anmol34 | Hex | 5 | |
| LuciusAskaner | Bytes and Big Integers | 10 | |
| anmol34 | ASCII | 5 | |
| LuciusAskaner | Hex | 5 | |
| HitchYoru | Export-grade | 100 | |
| LuciusAskaner | ASCII | 5 | |
| TwoShrimp | Favourite byte | 20 | |
| LuciusAskaner | Finding Flags | 2 | |
| wildmonkey450 | DLOG on the Surface | 40 | |
| ErikBLUBBLUB | Great Snakes | 3 | |
| Kran | Everything is Still Big | 100 | |
| samirakai | Base64 | 10 | |
| cbarrera | Great Snakes | 3 | |
| TwoShrimp | XOR Properties | 15 | |
| h11p13 | RSA Decryption | 20 | |
| samirakai | Hex | 5 | |
| h11p13 | Private Keys | 20 | |
| h11p13 | Euler's Totient | 20 |
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