| Date | User | Challenge | Score |
| SakurakouziAsaka | Modular Arithmetic 1 | 20 | |
| NoBirdWasHam | Decrypting TLS 1.2 | 30 | |
| SakurakouziAsaka | Extended GCD | 20 | |
| wesmboh | Great Snakes | 3 | |
| uzukhai | Gotta Go Fast | 40 | |
| SakurakouziAsaka | Greatest Common Divisor | 15 | |
| nous | RSA Backdoor Viability | 175 | |
| intermezzo | Modular Binomials | 80 | |
| SakurakouziAsaka | You either know, XOR you don't | 30 | |
| tracelyon | XOR Starter | 10 | |
| nhuhung37 | Gaussian Reduction | 50 | |
| NuebleZ | Bytes and Big Integers | 10 | |
| labyrinth0 | Legendre Symbol | 35 | |
| tracelyon | Bytes and Big Integers | 10 | |
| wesmboh | Finding Flags | 2 | |
| uzukhai | Jack's Birthday Hash | 20 | |
| R3 | Infinite Descent | 50 | |
| LaneZane | Favourite byte | 20 | |
| SG_42 | You either know, XOR you don't | 30 | |
| M93 | Modular Square Root | 35 | |
| ByVoidd | Bytes and Big Integers | 10 | |
| yokaroot | Base64 | 10 | |
| Zcaesar | Quadratic Residues | 25 | |
| NuebleZ | Network Attacks | 5 | |
| sakiteuy | Hex | 5 | |
| LaneZane | XOR Properties | 15 | |
| SakurakouziAsaka | Favourite byte | 20 | |
| sakiteuy | ASCII | 5 | |
| mobdev2021 | Great Snakes | 3 | |
| Zcaesar | Modular Inverting | 25 | |
| karpazias | Finding Flags | 2 | |
| mobdev2021 | Finding Flags | 2 | |
| roogs22 | Symmetry | 50 | |
| yokaroot | Hex | 5 | |
| Dylan_Pitti | Privacy-Enhanced Mail? | 25 | |
| copycat69 | Base64 | 10 | |
| NuebleZ | Base64 | 10 | |
| copycat69 | Hex | 5 | |
| NuebleZ | Hex | 5 | |
| NuebleZ | ASCII | 5 | |
| NuebleZ | Great Snakes | 3 | |
| yokaroot | ASCII | 5 | |
| JoshuaR | Privacy-Enhanced Mail? | 25 | |
| yokaroot | Network Attacks | 5 | |
| NuebleZ | Finding Flags | 2 | |
| UnlamG1MA | Factoring | 15 | |
| Limepop | Finding Flags | 2 | |
| Sylpeon | Rhetorical Oracle | 100 | |
| danikpro | Greatest Common Divisor | 15 | |
| nhuhung37 | What's a Lattice? | 40 |
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