| Date | User | Challenge | Score |
| Assel | Modular Binomials | 80 | |
| Assel | Adrien's Signs | 80 | |
| 0xAlphaDark | Keyed Permutations | 5 | |
| Amat2s | Salty | 20 | |
| HexHunter | Great Snakes | 3 | |
| Leeseungmin | Base64 | 10 | |
| yusun | XOR Properties | 15 | |
| Assel | Successive Powers | 60 | |
| happyjjk | XOR Properties | 15 | |
| Leeseungmin | ASCII | 5 | |
| Roxanne21 | Hex | 5 | |
| Leeseungmin | Hex | 5 | |
| 0xM0AyMaN | Great Snakes | 3 | |
| biggyboun | Bytes and Big Integers | 10 | |
| 0xM0AyMaN | Finding Flags | 2 | |
| Assel | Chinese Remainder Theorem | 40 | |
| 0xAlphaDark | Bytes and Big Integers | 10 | |
| Leeseungmin | XOR Properties | 15 | |
| F0rhex | Efficient Exchange | 50 | |
| Assel | Modular Square Root | 35 | |
| biggyboun | Base64 | 10 | |
| eel123 | Encoding Challenge | 40 | |
| pacmannn | ASCII | 5 | |
| 0xSa3d | XOR Starter | 10 | |
| F0rhex | Curves and Logs | 40 | |
| sodasugar | Resisting Bruteforce | 10 | |
| Assel | Legendre Symbol | 35 | |
| biggyboun | Hex | 5 | |
| sodasugar | Keyed Permutations | 5 | |
| Banana_Babanana | Bean Counter | 60 | |
| happyjjk | XOR Starter | 10 | |
| shura356 | Broken RSA | 100 | |
| arp1t0x | Manyprime | 40 | |
| Assel | Quadratic Residues | 25 | |
| biggyboun | ASCII | 5 | |
| J_ | Bytes and Big Integers | 10 | |
| biggyboun | Great Snakes | 3 | |
| tomi | XOR Starter | 10 | |
| yusun | XOR Starter | 10 | |
| Leeseungmin | XOR Starter | 10 | |
| biggyboun | Finding Flags | 2 | |
| Amat2s | Manyprime | 40 | |
| Roxanne21 | ASCII | 5 | |
| RudenShtanger | Legendre Symbol | 35 | |
| skiller3478 | Scalar Multiplication | 35 | |
| Max009 | Montgomery's Ladder | 40 | |
| Gaeul | XOR Starter | 10 | |
| ttlok | XOR Starter | 10 | |
| rammous0819 | XOR Properties | 15 | |
| F0rhex | Scalar Multiplication | 35 |
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