| Date | User | Challenge | Score |
| lube | Finding Flags | 2 | |
| vibehutao | Modular Inverting | 25 | |
| spleen1871 | Great Snakes | 3 | |
| byxlopoqpul | Chinese Remainder Theorem | 40 | |
| Cerades | The Good, The Pad, The Ugly | 100 | |
| ducklock | Finding Flags | 2 | |
| spleen1871 | Finding Flags | 2 | |
| fluo73 | RSA or HMAC? Part 2 | 100 | |
| Ameneko | XOR Starter | 10 | |
| juugo | ASCII | 5 | |
| byxlopoqpul | Modular Square Root | 35 | |
| registers_ninja | Modular Arithmetic 1 | 20 | |
| Ameneko | Bytes and Big Integers | 10 | |
| Cerades | Pad Thai | 80 | |
| juugo | Great Snakes | 3 | |
| Cerades | Oh SNAP | 120 | |
| abhi_ram | You either know, XOR you don't | 30 | |
| andika | Quadratic Residues | 25 | |
| andika | Modular Inverting | 25 | |
| andika | Modular Arithmetic 2 | 20 | |
| andika | Modular Arithmetic 1 | 20 | |
| andika | Extended GCD | 20 | |
| andika | Greatest Common Divisor | 15 | |
| Magixx | Greatest Common Divisor | 15 | |
| vibehutao | Modular Arithmetic 2 | 20 | |
| Cerades | Dancing Queen | 120 | |
| Cerades | Stream of Consciousness | 80 | |
| abhi_ram | Favourite byte | 20 | |
| GHSZZO | Base64 | 10 | |
| registers_ninja | Extended GCD | 20 | |
| GHSZZO | Hex | 5 | |
| abhi_ram | XOR Properties | 15 | |
| humausman | Extended GCD | 20 | |
| humausman | Greatest Common Divisor | 15 | |
| kenari | Modular Arithmetic 2 | 20 | |
| dla17 | Bytes and Big Integers | 10 | |
| vibehutao | Modular Arithmetic 1 | 20 | |
| GHSZZO | ASCII | 5 | |
| Bachatero | Dancing Queen | 120 | |
| juugo | Finding Flags | 2 | |
| GHSZZO | Network Attacks | 5 | |
| registers_ninja | Greatest Common Divisor | 15 | |
| humausman | You either know, XOR you don't | 30 | |
| GHSZZO | Great Snakes | 3 | |
| humausman | Favourite byte | 20 | |
| humausman | XOR Properties | 15 | |
| sonicbiscuit | Confusion through Substitution | 25 | |
| GHSZZO | Finding Flags | 2 | |
| humausman | XOR Starter | 10 | |
| sonicbiscuit | Round Keys | 20 |
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