| Date | User | Challenge | Score |
| lazyhunt3r | You either know, XOR you don't | 30 | |
| Cerades | No Way Back Home | 100 | |
| Cerades | Broken RSA | 100 | |
| khxjn | Smooth Criminal | 60 | |
| Cerades | Beatboxer | 150 | |
| littlehui | Finding Flags | 2 | |
| lazyhunt3r | Favourite byte | 20 | |
| junho | Efficient Exchange | 50 | |
| lazyhunt3r | XOR Properties | 15 | |
| Cerades | Forbidden Fruit | 150 | |
| sejong050409 | Smooth Criminal | 60 | |
| PIEMMM | Chinese Remainder Theorem | 40 | |
| junho | Curves and Logs | 40 | |
| makotoro | ASCII | 5 | |
| PIEMMM | Modular Inverting | 25 | |
| grazkaa | LWE Low Bits Message | 20 | |
| junho | Scalar Multiplication | 35 | |
| makotoro | Great Snakes | 3 | |
| makotoro | Finding Flags | 2 | |
| nesho | Network Attacks | 5 | |
| junho | Point Addition | 30 | |
| xx33xx | Resisting Bruteforce | 10 | |
| norma1person | Micro Transmissions | 120 | |
| PIEMMM | Modular Arithmetic 2 | 20 | |
| PIEMMM | Modular Arithmetic 1 | 20 | |
| xx33xx | Keyed Permutations | 5 | |
| PIEMMM | Extended GCD | 20 | |
| red_mito | Round Keys | 20 | |
| PIEMMM | Greatest Common Divisor | 15 | |
| junho | Point Negation | 10 | |
| red_mito | Structure of AES | 15 | |
| iliawedz | Hex | 5 | |
| RawanCys | Base64 | 10 | |
| iliawedz | ASCII | 5 | |
| RawanCys | Hex | 5 | |
| RawanCys | ASCII | 5 | |
| KMA_SiriuS_ | ProSign 3 | 100 | |
| nesho | Great Snakes | 3 | |
| Haikall | Lemur XOR | 40 | |
| Eozh | Base64 | 10 | |
| Eozh | Hex | 5 | |
| Eozh | ASCII | 5 | |
| Eozh | Great Snakes | 3 | |
| SGT0v0 | Greatest Common Divisor | 15 | |
| nesho | Finding Flags | 2 | |
| Eozh | Finding Flags | 2 | |
| HighestClimber | RSA Decryption | 20 | |
| toenandarlin | Bytes and Big Integers | 10 | |
| SGT0v0 | You either know, XOR you don't | 30 | |
| iliawedz | Great Snakes | 3 |
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