| Date | User | Challenge | Score |
| ZemonZE | You either know, XOR you don't | 30 | |
| franfill | Successive Powers | 60 | |
| Carriedo | You either know, XOR you don't | 30 | |
| GeorgeSor | Quadratic Residues | 25 | |
| ahmedm3laa | Modular Square Root | 35 | |
| LTaki | Extended GCD | 20 | |
| Rabbit89P23 | Broken RSA | 100 | |
| AESpider | JSON in JSON | 40 | |
| Kazdic | XOR Properties | 15 | |
| GeorgeSor | Modular Inverting | 25 | |
| Raindancer | ECB Oracle | 60 | |
| milson | XOR Starter | 10 | |
| GeorgeSor | Modular Arithmetic 2 | 20 | |
| Gricko | XOR Starter | 10 | |
| GeorgeSor | Modular Arithmetic 1 | 20 | |
| milson | Bytes and Big Integers | 10 | |
| Gricko | Bytes and Big Integers | 10 | |
| Fuujibayashi | Great Snakes | 3 | |
| aatifahmad123 | Privacy-Enhanced Mail? | 25 | |
| Fuujibayashi | Finding Flags | 2 | |
| ShorouqAhmad | Hex | 5 | |
| LTaki | Greatest Common Divisor | 15 | |
| Rabbit89P23 | Modular Binomials | 80 | |
| Kazdic | XOR Starter | 10 | |
| milson | Base64 | 10 | |
| albaquerque | Adrien's Signs | 80 | |
| Ravinject | Bytes and Big Integers | 10 | |
| LTaki | Lemur XOR | 40 | |
| GeorgeSor | Extended GCD | 20 | |
| Ch0p5h0p | Favourite byte | 20 | |
| Ch0p5h0p | XOR Properties | 15 | |
| AESpider | RSA or HMAC? | 35 | |
| milson | Hex | 5 | |
| juggerNoah | Base64 | 10 | |
| nullex | Euler's Totient | 20 | |
| juggerNoah | Hex | 5 | |
| juggerNoah | ASCII | 5 | |
| rpadiou | Chinese Remainder Theorem | 40 | |
| juggerNoah | Great Snakes | 3 | |
| juggerNoah | Finding Flags | 2 | |
| GeorgeSor | Greatest Common Divisor | 15 | |
| albaquerque | Chinese Remainder Theorem | 40 | |
| ShorouqAhmad | ASCII | 5 | |
| ShorouqAhmad | Great Snakes | 3 | |
| Dark_X95 | Base64 | 10 | |
| ShorouqAhmad | Finding Flags | 2 | |
| JellyGames | Everything is Still Big | 100 | |
| Carriedo | Favourite byte | 20 | |
| 0x00696e6964756f | Transparency | 50 | |
| Kazdic | Bytes and Big Integers | 10 |
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