| Date | User | Challenge | Score |
| annmaz | Flipping Cookie | 60 | |
| Anna_skarlatou | Resisting Bruteforce | 10 | |
| Anna_skarlatou | Keyed Permutations | 5 | |
| hungthinh | Computing Public Values | 25 | |
| priv3bo | Hex | 5 | |
| priv3bo | ASCII | 5 | |
| hungthinh | Generators of Groups | 20 | |
| priv3bo | Great Snakes | 3 | |
| somesoo | Infinite Descent | 50 | |
| annmaz | ECB Oracle | 60 | |
| Slonglong | ASCII | 5 | |
| priv3bo | Finding Flags | 2 | |
| aleksandra471 | Script Kiddie | 70 | |
| kevmill29 | Great Snakes | 3 | |
| ChokosOS | Point Negation | 10 | |
| hungthinh | Working with Fields | 10 | |
| kevmill29 | Finding Flags | 2 | |
| OaksAd | Script Kiddie | 70 | |
| annmaz | ECB CBC WTF | 55 | |
| somesoo | Everything is Big | 70 | |
| ChokosOS | Background Reading | 5 | |
| somesoo | Modulus Inutilis | 50 | |
| Slonglong | Great Snakes | 3 | |
| ChokosOS | Round Keys | 20 | |
| Slonglong | Finding Flags | 2 | |
| hwan | Find the Lattice | 100 | |
| somesoo | Salty | 20 | |
| George_Weasly | Legendre Symbol | 35 | |
| ChokosOS | Structure of AES | 15 | |
| Mejkl | JWT Sessions | 10 | |
| Mejkl | Token Appreciation | 5 | |
| annmaz | Passwords as Keys | 50 | |
| Anna_skarlatou | Jack's Birthday Confusion | 30 | |
| ChokosOS | Resisting Bruteforce | 10 | |
| kubam | Modulus Inutilis | 50 | |
| kodai160 | Extended GCD | 20 | |
| ChokosOS | Keyed Permutations | 5 | |
| teetoamate | Everything is Big | 70 | |
| redMint | Stream of Consciousness | 80 | |
| 0xGh4zy | Quadratic Residues | 25 | |
| ChokosOS | What's a Lattice? | 40 | |
| ChokosOS | Gram Schmidt | 30 | |
| kubam | Salty | 20 | |
| ChokosOS | Size and Basis | 15 | |
| kubam | Square Eyes | 35 | |
| Voron | Modular Arithmetic 1 | 20 | |
| aresinheaven | Beatboxer | 150 | |
| ChokosOS | Vectors | 10 | |
| bandit01 | Great Snakes | 3 | |
| bandit01 | Finding Flags | 2 |
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