| Date | User | Challenge | Score |
| pfrail2004 | You either know, XOR you don't | 30 | |
| nail | Bruce Schneier's Password | 100 | |
| d4pr0 | Curveball | 100 | |
| alb | Factoring | 15 | |
| pfrail2004 | Favourite byte | 20 | |
| ahmqd | Bruce Schneier's Password: Part 2 | 250 | |
| NayelyAyol | XOR Starter | 10 | |
| pfrail2004 | XOR Properties | 15 | |
| pfrail2004 | XOR Starter | 10 | |
| Anastlias1 | Modular Binomials | 80 | |
| Anastlias1 | Adrien's Signs | 80 | |
| Anastlias1 | Chinese Remainder Theorem | 40 | |
| Anastlias1 | Modular Square Root | 35 | |
| Anastlias1 | Legendre Symbol | 35 | |
| charybdis | Size and Basis | 15 | |
| Anastlias1 | Quadratic Residues | 25 | |
| Anastlias1 | Modular Inverting | 25 | |
| Anastlias1 | Modular Arithmetic 2 | 20 | |
| Anastlias1 | Modular Arithmetic 1 | 20 | |
| Anastlias1 | Extended GCD | 20 | |
| Anastlias1 | Greatest Common Divisor | 15 | |
| Anastlias1 | You either know, XOR you don't | 30 | |
| Anastlias1 | Favourite byte | 20 | |
| Anastlias1 | XOR Properties | 15 | |
| Anastlias1 | XOR Starter | 10 | |
| Anastlias1 | Bytes and Big Integers | 10 | |
| Anastlias1 | Base64 | 10 | |
| Anastlias1 | Hex | 5 | |
| Anastlias1 | ASCII | 5 | |
| Anastlias1 | Great Snakes | 3 | |
| Anastlias1 | Finding Flags | 2 | |
| charybdis | Vectors | 10 | |
| MidoS3d | Mixed Up | 120 | |
| balaje_16 | XOR Properties | 15 | |
| no_alice | Base64 | 10 | |
| astolica | Bytes and Big Integers | 10 | |
| prabinkatwal | ASCII | 5 | |
| Cee_bloop | XOR Starter | 10 | |
| Kuyenda18 | Real Curve Crypto | 200 | |
| alb | ZKP Introduction | 5 | |
| Cee_bloop | Bytes and Big Integers | 10 | |
| NayelyAyol | Bytes and Big Integers | 10 | |
| Kuyenda18 | Edwards Goes Degenerate | 100 | |
| prabinkatwal | Network Attacks | 5 | |
| prabinkatwal | Finding Flags | 2 | |
| erickao | Modular Arithmetic 1 | 20 | |
| Beru | Monoprime | 30 | |
| NayelyAyol | Base64 | 10 | |
| minhquan | ASCII | 5 | |
| prabinkatwal | Great Snakes | 3 |
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