| Date | User | Challenge | Score |
| tagekl | Computing Public Values | 25 | |
| meldstorm | OR Proof (CryptoHack) | 0 | |
| manar | Infinite Descent | 50 | |
| manar | Everything is Still Big | 100 | |
| KK5559D | Great Snakes | 3 | |
| SeifAhmed | Couples | 100 | |
| m4n059 | SSH Keys | 35 | |
| manar | Everything is Big | 70 | |
| 0dory0 | Modular Arithmetic 2 | 20 | |
| fbox | Favourite byte | 20 | |
| manar | Square Eyes | 35 | |
| gaoyashuiqiang | Passwords as Keys | 50 | |
| markanie | Quadratic Residues | 25 | |
| manar | Inferius Prime | 30 | |
| gzmus | OR Proof (CryptoHack) | 0 | |
| datasquirel | Keyed Permutations | 5 | |
| koreanronaldo | You either know, XOR you don't | 30 | |
| 271leni | Resisting Bruteforce | 10 | |
| fbox | XOR Properties | 15 | |
| 271leni | Keyed Permutations | 5 | |
| 271leni | Lemur XOR | 40 | |
| othmanemessaoud | You either know, XOR you don't | 30 | |
| 0dory0 | Favourite byte | 20 | |
| mypalpal | Backpack Cryptography | 120 | |
| Cristi72 | Modular Inverting | 25 | |
| cleruu | Extended GCD | 20 | |
| sulha | Lemur XOR | 40 | |
| Zysee | Bringing It All Together | 50 | |
| Arpan0x88 | Encoding Challenge | 40 | |
| znur | Greatest Common Divisor | 15 | |
| znur | Lemur XOR | 40 | |
| Cristi72 | Modular Arithmetic 2 | 20 | |
| koreanronaldo | Network Attacks | 5 | |
| znur | You either know, XOR you don't | 30 | |
| Ayhamodeh | Modular Inverting | 25 | |
| Ctranikinn | Adrien's Signs | 80 | |
| emmabb | XOR Properties | 15 | |
| Cristi72 | Modular Arithmetic 1 | 20 | |
| znur | Favourite byte | 20 | |
| Cristi72 | Extended GCD | 20 | |
| copperfield | XOR Starter | 10 | |
| znur | XOR Properties | 15 | |
| 0xa6k | XOR Properties | 15 | |
| koreanronaldo | Favourite byte | 20 | |
| Ayhamodeh | Modular Arithmetic 2 | 20 | |
| teck | Chinese Remainder Theorem | 40 | |
| znur | XOR Starter | 10 | |
| cu63 | ECB Oracle | 60 | |
| s0lver | You either know, XOR you don't | 30 | |
| znur | Encoding Challenge | 40 |
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