| Date | User | Challenge | Score |
| nihhajawarembang | Bringing It All Together | 50 | |
| Pizz | Everything is Big | 70 | |
| Pizz | Modulus Inutilis | 50 | |
| Tester_One_919 | Network Attacks | 5 | |
| loser | You either know, XOR you don't | 30 | |
| luna12 | Greatest Common Divisor | 15 | |
| KesyTheCat | Finding Flags | 2 | |
| Fluffy77 | Hex | 5 | |
| loser | Favourite byte | 20 | |
| Pizz | Salty | 20 | |
| loser | XOR Properties | 15 | |
| TheMachiner | Quadratic Residues | 25 | |
| sam_Goggins | Favourite byte | 20 | |
| itsmerb2007 | Favourite byte | 20 | |
| Tester_One_919 | ASCII | 5 | |
| sam_Goggins | XOR Properties | 15 | |
| Pizz | Manyprime | 40 | |
| TheMachiner | Modular Inverting | 25 | |
| TheMachiner | Modular Arithmetic 2 | 20 | |
| TheMachiner | Modular Arithmetic 1 | 20 | |
| TheMachiner | Extended GCD | 20 | |
| itsmerb2007 | XOR Properties | 15 | |
| loser | XOR Starter | 10 | |
| r34770c | Greatest Common Divisor | 15 | |
| Aryaethn | LWE High Bits Message | 15 | |
| Pizz | Square Eyes | 35 | |
| Teneeduu2 | Square Eyes | 35 | |
| itsmerb2007 | XOR Starter | 10 | |
| loser | Bytes and Big Integers | 10 | |
| akio | Base64 | 10 | |
| Teneeduu2 | Monoprime | 30 | |
| akio | Hex | 5 | |
| akio | ASCII | 5 | |
| Pizz | Monoprime | 30 | |
| akio | Great Snakes | 3 | |
| Teneeduu2 | Inferius Prime | 30 | |
| VISAS_STARFROST | No Way Back Home | 100 | |
| TheMachiner | Greatest Common Divisor | 15 | |
| TheMachiner | You either know, XOR you don't | 30 | |
| Pizz | Inferius Prime | 30 | |
| TheMachiner | Favourite byte | 20 | |
| nk0 | Nothing Up My Sleeve | 150 | |
| Lilo | Base64 | 10 | |
| TheMachiner | XOR Properties | 15 | |
| engman | Manyprime | 40 | |
| Pizz | Factoring | 15 | |
| akio | Finding Flags | 2 | |
| engman | Square Eyes | 35 | |
| loser | Base64 | 10 | |
| ciprianursulean | Private Keys | 20 |
You are now level Current level