| Date | User | Challenge | Score |
| 223874_Mark | Modular Inverting | 25 | |
| omou123 | Great Snakes | 3 | |
| vuquan | ASCII | 5 | |
| Berwa_Ian_Ange | Modular Square Root | 35 | |
| omou123 | Finding Flags | 2 | |
| vuquan | Great Snakes | 3 | |
| vuquan | Finding Flags | 2 | |
| lucky123 | TLS Handshake | 15 | |
| Paketik | Favourite byte | 20 | |
| nguyenmaihuyphat | ASCII | 5 | |
| Hawret | Favourite byte | 20 | |
| Yicarmueer | Base64 | 10 | |
| Paketik | XOR Properties | 15 | |
| nguyenmaihuyphat | Finding Flags | 2 | |
| ModReaper | XOR Starter | 10 | |
| Yicarmueer | Hex | 5 | |
| pepitolospalotes | Lemur XOR | 40 | |
| 223874_Mark | Modular Arithmetic 2 | 20 | |
| SigmaMonster | Computing Public Values | 25 | |
| Bright05 | Bytes and Big Integers | 10 | |
| ModReaper | Bytes and Big Integers | 10 | |
| Siddhanta | Base64 | 10 | |
| pepitolospalotes | You either know, XOR you don't | 30 | |
| altmeow | Network Attacks | 5 | |
| Akash_Mirza | Base64 | 10 | |
| altmeow | Great Snakes | 3 | |
| altmeow | Finding Flags | 2 | |
| Akash_Mirza | Hex | 5 | |
| Siddhanta | Hex | 5 | |
| seekxr | Greatest Common Divisor | 15 | |
| Minh_142857 | Computing Public Values | 25 | |
| Akash_Mirza | ASCII | 5 | |
| haiderontheradar | Keyed Permutations | 5 | |
| Hawret | XOR Properties | 15 | |
| Siddhanta | ASCII | 5 | |
| FieryBanana101 | Too Honest | 50 | |
| 4AAA4 | Exceptional Curves | 100 | |
| pepitolospalotes | Favourite byte | 20 | |
| Akash_Mirza | Great Snakes | 3 | |
| ruu123 | Finding Flags | 2 | |
| Siddhanta | Great Snakes | 3 | |
| Minh_142857 | Generators of Groups | 20 | |
| Akash_Mirza | Finding Flags | 2 | |
| haiderontheradar | Modular Binomials | 80 | |
| Siddhanta | Finding Flags | 2 | |
| lucky123 | Sharks on the Wire | 10 | |
| Minh_142857 | Working with Fields | 10 | |
| pepitolospalotes | XOR Properties | 15 | |
| gufan | Legendre Symbol | 35 | |
| ModReaper | Base64 | 10 |
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