| Date | User | Challenge | Score |
| lowGround | Favourite byte | 20 | |
| IL0veM4ths | XOR Starter | 10 | |
| lowGround | XOR Properties | 15 | |
| ahmadsmaan | Modular Arithmetic 2 | 20 | |
| Betel | Finding Flags | 2 | |
| sibAlpha | XOR Starter | 10 | |
| halliana | Smooth Criminal | 60 | |
| IL0veM4ths | Bytes and Big Integers | 10 | |
| Mrheisenburgers | MD0 | 80 | |
| MarcosV | Greatest Common Divisor | 15 | |
| komal_0201 | Great Snakes | 3 | |
| lowGround | XOR Starter | 10 | |
| IL0veM4ths | Base64 | 10 | |
| Wrangler | Great Snakes | 3 | |
| Wrangler | Finding Flags | 2 | |
| IL0veM4ths | Hex | 5 | |
| z8v5nr4d | Scalar Multiplication | 35 | |
| wanttobethebest | Digestive | 60 | |
| halliana | Composite Isogenies | 60 | |
| komal_0201 | Finding Flags | 2 | |
| IL0veM4ths | ASCII | 5 | |
| martonpe | Network Attacks | 5 | |
| ahmadsmaan | Modular Arithmetic 1 | 20 | |
| IL0veM4ths | Great Snakes | 3 | |
| halliana | Secret Exponents | 60 | |
| cryptokiwi | Quadratic Residues | 25 | |
| ABovo | ECB Oracle | 60 | |
| halliana | Twisted CSIDH Isogenies | 70 | |
| ahmadsmaan | Extended GCD | 20 | |
| candour | Modular Square Root | 35 | |
| lowGround | Bytes and Big Integers | 10 | |
| IL0veM4ths | Finding Flags | 2 | |
| AESpider | Blinding Light | 120 | |
| OKlllng | Factoring | 15 | |
| Yoshixi | Diffusion through Permutation | 30 | |
| ahmadsmaan | Greatest Common Divisor | 15 | |
| martonpe | Modes of Operation Starter | 15 | |
| Mrheisenburgers | Fast Primes | 75 | |
| AESpider | Let's Decrypt | 80 | |
| BonziSki | Modular Inverting | 25 | |
| Angeily | ASCII | 5 | |
| 0xSh4d0w6 | ASCII | 5 | |
| Aeneas7 | SIDH Key Exchange | 80 | |
| moe0l | Jeff's LFSR | 150 | |
| martonpe | Bringing It All Together | 50 | |
| 0xSh4d0w6 | Great Snakes | 3 | |
| glitchcat | Lazy CBC | 60 | |
| HashKselR | XOR Properties | 15 | |
| xfnx | Bruce Schneier's Password | 100 | |
| 0xSh4d0w6 | Finding Flags | 2 |
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