| Date | User | Challenge | Score |
| mitoni | Modular Arithmetic 1 | 20 | |
| mitoni | Extended GCD | 20 | |
| freesailor | Extended GCD | 20 | |
| WillOfButterfly | ASCII | 5 | |
| frostzz | Modular Arithmetic 1 | 20 | |
| Fenrir12 | ASCII | 5 | |
| frostzz | Extended GCD | 20 | |
| kej | Finding Flags | 2 | |
| Fenrir12 | Great Snakes | 3 | |
| Fenrir12 | Finding Flags | 2 | |
| frostzz | Greatest Common Divisor | 15 | |
| mitoni | Greatest Common Divisor | 15 | |
| rayanezaz | The Good, The Pad, The Ugly | 100 | |
| mitoni | You either know, XOR you don't | 30 | |
| aditya_kumeowka | Bytes and Big Integers | 10 | |
| WillOfButterfly | Great Snakes | 3 | |
| WillOfButterfly | Finding Flags | 2 | |
| rayanezaz | Pad Thai | 80 | |
| mauri_dev14 | Chinese Remainder Theorem | 40 | |
| timmyshj | Bytes and Big Integers | 10 | |
| vigneshwaran0711 | Greatest Common Divisor | 15 | |
| timmyshj | Base64 | 10 | |
| asfd98123rejk | LWE Background | 5 | |
| timmyshj | Hex | 5 | |
| asfd98123rejk | Gram Schmidt | 30 | |
| frostzz | You either know, XOR you don't | 30 | |
| timmyshj | ASCII | 5 | |
| jrhyne | Signing Server | 60 | |
| fentaohe | Flipping Cookie | 60 | |
| frostzz | Favourite byte | 20 | |
| frostzz | XOR Properties | 15 | |
| aditya_kumeowka | Base64 | 10 | |
| mitoni | Favourite byte | 20 | |
| rayanezaz | Oh SNAP | 120 | |
| rayanezaz | Dancing Queen | 120 | |
| rayanezaz | Stream of Consciousness | 80 | |
| rayanezaz | Logon Zero | 80 | |
| rayanezaz | CTRIME | 70 | |
| rayanezaz | Bean Counter | 60 | |
| rayanezaz | Symmetry | 50 | |
| mauri_dev14 | Modular Square Root | 35 | |
| rayanezaz | Triple DES | 60 | |
| Thangg | Bytes and Big Integers | 10 | |
| rayanezaz | Lazy CBC | 60 | |
| rayanezaz | Flipping Cookie | 60 | |
| rayanezaz | ECB Oracle | 60 | |
| mitoni | XOR Properties | 15 | |
| rayanezaz | ECB CBC WTF | 55 | |
| aditya_kumeowka | Hex | 5 | |
| aditya_kumeowka | ASCII | 5 |
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