| Date | User | Challenge | Score |
| clukki | XOR Starter | 10 | |
| clukki | Bytes and Big Integers | 10 | |
| clukki | Base64 | 10 | |
| Yaroman228 | Finding Flags | 2 | |
| vibranium | Base64 | 10 | |
| clukki | Hex | 5 | |
| clukki | ASCII | 5 | |
| clukki | Great Snakes | 3 | |
| clukki | Finding Flags | 2 | |
| KeenanJoshua | Modulus Inutilis | 50 | |
| BillGerald | Everything is Big | 70 | |
| Cryb | Modular Arithmetic 2 | 20 | |
| Alyb | Base64 | 10 | |
| Alyb | Hex | 5 | |
| Alyb | ASCII | 5 | |
| TheFl1ght | XOR Starter | 10 | |
| Alyb | Great Snakes | 3 | |
| vibranium | Hex | 5 | |
| Alyb | Finding Flags | 2 | |
| vibranium | ASCII | 5 | |
| cavazinf | Bruce Schneier's Password: Part 2 | 250 | |
| KeenanJoshua | Salty | 20 | |
| TheFl1ght | Bytes and Big Integers | 10 | |
| sgrenz | L-Win | 120 | |
| vibranium | Great Snakes | 3 | |
| 18859985902 | What's a Lattice? | 40 | |
| 18859985902 | Gaussian Reduction | 50 | |
| 18859985902 | Gram Schmidt | 30 | |
| vibranium | Finding Flags | 2 | |
| 18859985902 | Size and Basis | 15 | |
| 18859985902 | Vectors | 10 | |
| 18859985902 | JWT Sessions | 10 | |
| Rezzen | XOR Properties | 15 | |
| lilj | Finding Flags | 2 | |
| TheFl1ght | Base64 | 10 | |
| 18859985902 | Private Keys | 20 | |
| 18859985902 | Public Keys | 15 | |
| 18859985902 | Modular Exponentiation | 10 | |
| sahithi | Finding Flags | 2 | |
| cavazinf | Bruce Schneier's Password | 100 | |
| 18859985902 | Generators of Groups | 20 | |
| 18859985902 | Working with Fields | 10 | |
| cavazinf | Toshi's Treasure | 150 | |
| windylight1704 | Quadratic Residues | 25 | |
| KeenanJoshua | Manyprime | 40 | |
| doanhaphong | Stream of Consciousness | 80 | |
| quan120807 | Chinese Remainder Theorem | 40 | |
| cavazinf | Armory | 100 | |
| retT1x | Base64 | 10 | |
| cavazinf | Bit by Bit | 100 |
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