| Date | User | Challenge | Score |
| Mohammedamin | Symmetry | 50 | |
| Hanno02 | XOR Starter | 10 | |
| alialp207 | ASCII | 5 | |
| amjad_abdo | Merkle Trees | 25 | |
| alialp207 | Great Snakes | 3 | |
| Asb3st0s | Greatest Common Divisor | 15 | |
| alialp207 | Finding Flags | 2 | |
| Asb3st0s | You either know, XOR you don't | 30 | |
| wooferguy | Modular Inverting | 25 | |
| amjad_abdo | Jack's Birthday Confusion | 30 | |
| nabbiinn | Flipping Cookie | 60 | |
| Rasheeda_r20 | RSA Decryption | 20 | |
| Rasheeda_r20 | Private Keys | 20 | |
| Rasheeda_r20 | Euler's Totient | 20 | |
| wooferguy | Modular Arithmetic 2 | 20 | |
| Rasheeda_r20 | Public Keys | 15 | |
| Rasheeda_r20 | Modular Exponentiation | 10 | |
| amjad_abdo | Salty | 20 | |
| wooferguy | Modular Arithmetic 1 | 20 | |
| gago | Network Attacks | 5 | |
| alfred_STT | XOR Properties | 15 | |
| sricci | Keyed Permutations | 5 | |
| Asb3st0s | Favourite byte | 20 | |
| gago | Great Snakes | 3 | |
| sricci | Great Snakes | 3 | |
| rehabalmoalimi | Bean Counter | 60 | |
| amjad_abdo | Monoprime | 30 | |
| skidsstring | Chinese Remainder Theorem | 40 | |
| sricci | Finding Flags | 2 | |
| Sharav_Gupta | XOR Starter | 10 | |
| wooferguy | Extended GCD | 20 | |
| CraftingNerf | Base64 | 10 | |
| Asb3st0s | XOR Properties | 15 | |
| Sharav_Gupta | Bytes and Big Integers | 10 | |
| skidsstring | Modular Square Root | 35 | |
| Sharav_Gupta | Base64 | 10 | |
| ariba | Oh SNAP | 120 | |
| juanillohack | Hex | 5 | |
| Sharav_Gupta | Hex | 5 | |
| Sayan_1 | Finding Flags | 2 | |
| alfred_STT | XOR Starter | 10 | |
| CraftingNerf | Hex | 5 | |
| CraftingNerf | ASCII | 5 | |
| CraftingNerf | Great Snakes | 3 | |
| CraftingNerf | Finding Flags | 2 | |
| NicoO | XOR Starter | 10 | |
| alfred_STT | Bytes and Big Integers | 10 | |
| Unknown_person | Great Snakes | 3 | |
| amjad_abdo | Factoring | 15 | |
| Unknown_person | Finding Flags | 2 |
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