| Date | User | Challenge | Score |
| mhd10bst | XOR Properties | 15 | |
| Vanquishlynx | Modes of Operation Starter | 15 | |
| Patonymous | Modulus Inutilis | 50 | |
| gawol332 | Export-grade | 100 | |
| r4g4b | ASCII | 5 | |
| Patonymous | Salty | 20 | |
| r4g4b | Great Snakes | 3 | |
| Kammulus | Adrien's Signs | 80 | |
| r4g4b | Finding Flags | 2 | |
| Patonymous | Manyprime | 40 | |
| mhd10bst | XOR Starter | 10 | |
| the_real_sam | XOR Starter | 10 | |
| EthanS347 | Base64 | 10 | |
| the_real_sam | Bytes and Big Integers | 10 | |
| Patonymous | Monoprime | 30 | |
| Patonymous | Factoring | 15 | |
| the_real_sam | Base64 | 10 | |
| Reo0x | Extended GCD | 20 | |
| charles_m | Quadratic Residues | 25 | |
| Patonymous | RSA Signatures | 25 | |
| RA3D | Encoding Challenge | 40 | |
| mpg | Manyprime | 40 | |
| mhd10bst | Bytes and Big Integers | 10 | |
| Dominiminik | Real Eisenstein | 150 | |
| EthanS347 | Hex | 5 | |
| Patonymous | RSA Decryption | 20 | |
| Klara_2025 | Couples | 100 | |
| Patonymous | Private Keys | 20 | |
| bobthebuilder321 | Greatest Common Divisor | 15 | |
| Patonymous | Euler's Totient | 20 | |
| SuperSniper3412 | Manyprime | 40 | |
| dawsonpelter | Favourite byte | 20 | |
| bobthebuilder321 | ASCII | 5 | |
| jszablanowski | Successive Powers | 60 | |
| mhd10bst | Base64 | 10 | |
| bobthebuilder321 | Great Snakes | 3 | |
| EthanS347 | ASCII | 5 | |
| bobthebuilder321 | Finding Flags | 2 | |
| mhd10bst | Hex | 5 | |
| SuperSniper3412 | Monoprime | 30 | |
| mhd10bst | ASCII | 5 | |
| Patonymous | Public Keys | 15 | |
| SuperSniper3412 | Factoring | 15 | |
| mhd10bst | Great Snakes | 3 | |
| mpg | Monoprime | 30 | |
| Patonymous | Modular Exponentiation | 10 | |
| youngCrypto | Chinese Remainder Theorem | 40 | |
| mhd10bst | Finding Flags | 2 | |
| thepeashooterfan | Network Attacks | 5 | |
| Steffe77a | Finding Flags | 2 |
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