Solves
Data for the 50 most recent submitted challenge solves. To read writeups for our challenges, visit Solutions.
Recent Solves
| Date | User | Challenge | Score |
| W4t3r_m3Sc0r | Modular Arithmetic 1 | 20 | |
| Ali_yahya | Computing Shared Secrets | 30 | |
| Ali_yahya | Computing Public Values | 25 | |
| richarlison | Favourite byte | 20 | |
| fofo2026 | Monoprime | 30 | |
| HeptaZ | Resisting Bruteforce | 10 | |
| W4t3r_m3Sc0r | Extended GCD | 20 | |
| martigo | Bytes and Big Integers | 10 | |
| nous | Special Soundness | 25 | |
| abdullah_elead | Greatest Common Divisor | 15 | |
| richarlison | XOR Properties | 15 | |
| FishBones | ASCII | 5 | |
| FishBones | Great Snakes | 3 | |
| FishBones | Finding Flags | 2 | |
| fofo2026 | Computing Public Values | 25 | |
| nous | Real Mersenne (Zh3r0 CTF V2) | 0 | |
| richarlison | XOR Starter | 10 | |
| skkeem | Monoprime | 30 | |
| HumanHumanName | Modular Binomials | 80 | |
| fofo2026 | RSA Signatures | 25 | |
| at220121 | Base64 | 10 | |
| zomaomar | ASCII | 5 | |
| martigo | Base64 | 10 | |
| richarlison | Bytes and Big Integers | 10 | |
| at220121 | Hex | 5 | |
| martigo | Hex | 5 | |
| richarlison | Base64 | 10 | |
| at220121 | ASCII | 5 | |
| richarlison | Hex | 5 | |
| at220121 | Great Snakes | 3 | |
| skkeem | Factoring | 15 | |
| richarlison | ASCII | 5 | |
| Ghadeer | Jack's Birthday Hash | 20 | |
| richarlison | Great Snakes | 3 | |
| skkeem | RSA Signatures | 25 | |
| fofo2026 | Factoring | 15 | |
| richarlison | Finding Flags | 2 | |
| itg6j | Fast Primes | 75 | |
| trthuytien | Base64 | 10 | |
| Ghadeer | Generators of Groups | 20 | |
| nous | Irish flan (ECSC 2023 (Norway)) | 0 | |
| trthuytien | Hex | 5 | |
| trthuytien | ASCII | 5 | |
| trthuytien | Great Snakes | 3 | |
| trthuytien | Finding Flags | 2 | |
| piantaa1 | You either know, XOR you don't | 30 | |
| martigo | ASCII | 5 | |
| fofo2026 | Round Keys | 20 | |
| skkeem | RSA Decryption | 20 | |
| RDxR10 | RRSSAA (ECSC 2023 (Norway)) | 0 |