| Date | User | Challenge | Score |
| Brendan | Modular Inverting | 25 | |
| miel | Monoprime | 30 | |
| Brendan | Modular Arithmetic 2 | 20 | |
| Brendan | Modular Arithmetic 1 | 20 | |
| Pepsi | Favourite byte | 20 | |
| m4n059 | Curveball | 100 | |
| jerkstone | Modular Arithmetic 1 | 20 | |
| cbr4l0k | Modes of Operation Starter | 15 | |
| Hell_ish | Resisting Bruteforce | 10 | |
| Cyber1555 | Bytes and Big Integers | 10 | |
| Brendan | Extended GCD | 20 | |
| Kreauwen | XOR Starter | 10 | |
| jerkstone | Extended GCD | 20 | |
| gumbat70 | Privacy-Enhanced Mail? | 25 | |
| gujiu | ASCII | 5 | |
| 0xSerb0t | Finding Flags | 2 | |
| gujiu | Great Snakes | 3 | |
| Kreauwen | Bytes and Big Integers | 10 | |
| gujiu | Finding Flags | 2 | |
| sarayji | Passwords as Keys | 50 | |
| Hell_ish | Keyed Permutations | 5 | |
| Cyber1555 | Base64 | 10 | |
| Kreauwen | Base64 | 10 | |
| Brendan | Greatest Common Divisor | 15 | |
| Kreauwen | Hex | 5 | |
| MoMasarweh | Diffusion through Permutation | 30 | |
| jerkstone | Greatest Common Divisor | 15 | |
| Kreauwen | ASCII | 5 | |
| sarayji | Modes of Operation Starter | 15 | |
| grazkaa | Resisting Bruteforce | 10 | |
| m4n059 | Smooth Criminal | 60 | |
| grazkaa | Keyed Permutations | 5 | |
| sarayji | Transparency | 50 | |
| Kreauwen | Great Snakes | 3 | |
| MoMasarweh | Confusion through Substitution | 25 | |
| Kreauwen | Finding Flags | 2 | |
| sarayji | SSH Keys | 35 | |
| pcspcs | Marin's Secrets | 50 | |
| 0dory0 | XOR Starter | 10 | |
| timy | Bytes and Big Integers | 10 | |
| MoMasarweh | Round Keys | 20 | |
| timy | Base64 | 10 | |
| jyhoon | Monoprime | 30 | |
| timy | Network Attacks | 5 | |
| kvv | Verilicious (Cyber Apocalypse 2025) | 0 | |
| ghovhann | Merkle Trees | 25 | |
| Zysee | Modes of Operation Starter | 15 | |
| pcspcs | Infinite Descent | 50 | |
| mariia_botkina | Chinese Remainder Theorem | 40 | |
| ghovhann | Pairing-Based Cryptography | 50 |
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