| Date | User | Challenge | Score |
| marcobon | XOR Properties | 15 | |
| marcobon | XOR Starter | 10 | |
| Aryaethn | JSON in JSON | 40 | |
| marcobon | Bytes and Big Integers | 10 | |
| hackermasterpro | You either know, XOR you don't | 30 | |
| marcobon | Base64 | 10 | |
| hackermasterpro | Favourite byte | 20 | |
| marcobon | Hex | 5 | |
| hackermasterpro | XOR Properties | 15 | |
| JO_007 | L-Win | 120 | |
| marcobon | ASCII | 5 | |
| hackermasterpro | XOR Starter | 10 | |
| marcobon | Great Snakes | 3 | |
| marcobon | Finding Flags | 2 | |
| Aryaethn | RSA or HMAC? | 35 | |
| sans1441 | Everything is Big | 70 | |
| Aryaethn | JWT Secrets | 25 | |
| quang0805 | Greatest Common Divisor | 15 | |
| alphabino02 | Extended GCD | 20 | |
| Aryaethn | No Way JOSE | 20 | |
| PanosT250 | Network Attacks | 5 | |
| sterva | Modular Arithmetic 1 | 20 | |
| Ridwan1642 | Legendre Symbol | 35 | |
| Aryaethn | JWT Sessions | 10 | |
| dispossable | Hex | 5 | |
| Panef | Base64 | 10 | |
| sterva | Extended GCD | 20 | |
| dispossable | ASCII | 5 | |
| PanosT250 | Great Snakes | 3 | |
| sterva | Greatest Common Divisor | 15 | |
| PanosT250 | Finding Flags | 2 | |
| Panef | Hex | 5 | |
| mmd1hp | Token Appreciation | 5 | |
| PanosT250 | Extended GCD | 20 | |
| sterva | Lemur XOR | 40 | |
| sterva | You either know, XOR you don't | 30 | |
| BlueBoy | Public Keys | 15 | |
| sterva | Favourite byte | 20 | |
| sterva | XOR Properties | 15 | |
| l3duy | Everything is Big | 70 | |
| BlueBoy | Modular Exponentiation | 10 | |
| Panef | ASCII | 5 | |
| porolishinan | Great Snakes | 3 | |
| Panef | Network Attacks | 5 | |
| porolishinan | Finding Flags | 2 | |
| muto98 | Greatest Common Divisor | 15 | |
| Harshil1110 | Modes of Operation Starter | 15 | |
| drace94 | Square Eyes | 35 | |
| sterva | XOR Starter | 10 | |
| PanosT250 | Greatest Common Divisor | 15 |
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