| Date | User | Challenge | Score |
| itzabdslmv | ASCII | 5 | |
| 4v0c4d0 | Bytes and Big Integers | 10 | |
| itzabdslmv | Great Snakes | 3 | |
| itzabdslmv | Finding Flags | 2 | |
| zhfps | Montgomery's Ladder | 40 | |
| NK_HERE | Privacy-Enhanced Mail? | 25 | |
| levankhoi | Bytes and Big Integers | 10 | |
| Anoop | Hex | 5 | |
| Anoop | ASCII | 5 | |
| Minh_142857 | Modular Square Root | 35 | |
| levankhoi | Base64 | 10 | |
| Anoop | Great Snakes | 3 | |
| levankhoi | Hex | 5 | |
| levankhoi | ASCII | 5 | |
| Anoop | Finding Flags | 2 | |
| levankhoi | Great Snakes | 3 | |
| Sakashirazuki | XOR Starter | 10 | |
| thisismetrying | Modular Square Root | 35 | |
| gluecicle | Adrien's Signs | 80 | |
| devb | Hex | 5 | |
| thisismetrying | Legendre Symbol | 35 | |
| Sakashirazuki | Bytes and Big Integers | 10 | |
| devb | ASCII | 5 | |
| ENRSPRAGUE | Finding Flags | 2 | |
| devb | Great Snakes | 3 | |
| skishoemakers | Base64 | 10 | |
| devb | Finding Flags | 2 | |
| xtrm0 | Meet me in the Claw | 120 | |
| Hgrocker | ASCII | 5 | |
| Hgrocker | Great Snakes | 3 | |
| Hgrocker | Finding Flags | 2 | |
| skishoemakers | Hex | 5 | |
| skishoemakers | ASCII | 5 | |
| APhw | Base64 | 10 | |
| xianggenglihai | Jack's Birthday Confusion | 30 | |
| APhw | Hex | 5 | |
| skishoemakers | Great Snakes | 3 | |
| skishoemakers | Finding Flags | 2 | |
| APhw | ASCII | 5 | |
| xianggenglihai | Jack's Birthday Hash | 20 | |
| APhw | Network Attacks | 5 | |
| NK_HERE | Modular Inverting | 25 | |
| NK_HERE | Modular Arithmetic 2 | 20 | |
| NK_HERE | Modular Arithmetic 1 | 20 | |
| APhw | Great Snakes | 3 | |
| NK_HERE | Extended GCD | 20 | |
| NK_HERE | Greatest Common Divisor | 15 | |
| yona_txt | Bytes and Big Integers | 10 | |
| RayK06 | You either know, XOR you don't | 30 | |
| NK_HERE | You either know, XOR you don't | 30 |
You are now level Current level