| Date | User | Challenge | Score |
| pcspcs | Adrien's Signs | 80 | |
| Alinaylin | Base64 | 10 | |
| Teedge | Base64 | 10 | |
| Thaimeo2006 | The Good, The Pad, The Ugly | 100 | |
| flouxtine | Point Negation | 10 | |
| lty748 | Chinese Remainder Theorem | 40 | |
| Teedge | Hex | 5 | |
| dynhlucw | Modular Inverting | 25 | |
| pcspcs | Chinese Remainder Theorem | 40 | |
| pcspcs | Modular Square Root | 35 | |
| flouxtine | Gaussian Reduction | 50 | |
| lty748 | RSA Backdoor Viability | 175 | |
| Teedge | ASCII | 5 | |
| pcspcs | Legendre Symbol | 35 | |
| flouxtine | What's a Lattice? | 40 | |
| Alinaylin | Hex | 5 | |
| pcspcs | Quadratic Residues | 25 | |
| Teedge | Great Snakes | 3 | |
| pcspcs | Modular Inverting | 25 | |
| lty748 | Marin's Secrets | 50 | |
| pcspcs | Modular Arithmetic 2 | 20 | |
| caps | SSH Keys | 35 | |
| pcspcs | Modular Arithmetic 1 | 20 | |
| Teedge | Finding Flags | 2 | |
| pcspcs | Extended GCD | 20 | |
| pcspcs | Greatest Common Divisor | 15 | |
| wangdi7670 | ECB Oracle | 60 | |
| pcspcs | You either know, XOR you don't | 30 | |
| pcspcs | Favourite byte | 20 | |
| dynhlucw | Modular Arithmetic 2 | 20 | |
| pcspcs | XOR Properties | 15 | |
| dynhlucw | Modular Arithmetic 1 | 20 | |
| flouxtine | Gram Schmidt | 30 | |
| dynhlucw | Extended GCD | 20 | |
| caps | CERTainly not | 30 | |
| bones33 | Stream of Consciousness | 80 | |
| maousi | Bean Counter | 60 | |
| lty748 | Infinite Descent | 50 | |
| pcspcs | XOR Starter | 10 | |
| Alinaylin | ASCII | 5 | |
| pcspcs | Bytes and Big Integers | 10 | |
| xmelle | Bytes and Big Integers | 10 | |
| pcspcs | Base64 | 10 | |
| pcspcs | Hex | 5 | |
| pcspcs | ASCII | 5 | |
| pcspcs | Great Snakes | 3 | |
| Alinaylin | Great Snakes | 3 | |
| s0rtq | XOR Starter | 10 | |
| pcspcs | Finding Flags | 2 | |
| lty748 | Crossed Wires | 100 |
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