| Date | User | Challenge | Score |
| LanacieZ | Finding Flags | 2 | |
| CarrotMoth | ASCII | 5 | |
| Firrton | Finding Flags | 2 | |
| 2eags | Base64 | 10 | |
| ndespresso | Base64 | 10 | |
| logy | Extended GCD | 20 | |
| UrLastWish | Bruce Schneier's Password | 100 | |
| maramcys | Modulus Inutilis | 50 | |
| ndespresso | Hex | 5 | |
| francovuga | Modular Arithmetic 1 | 20 | |
| CarrotMoth | Great Snakes | 3 | |
| francovuga | Extended GCD | 20 | |
| Juanocracy | Great Snakes | 3 | |
| 3R3B05 | Greatest Common Divisor | 15 | |
| sontesch | Bytes and Big Integers | 10 | |
| anshika18 | Modular Arithmetic 1 | 20 | |
| anshika18 | Extended GCD | 20 | |
| anshika18 | Greatest Common Divisor | 15 | |
| Peepmeep22 | Great Snakes | 3 | |
| Juanocracy | Finding Flags | 2 | |
| r1ntar0 | Base64 | 10 | |
| r1ntar0 | Hex | 5 | |
| rragewrath1 | Working with Fields | 10 | |
| r1ntar0 | ASCII | 5 | |
| sharadyadav | Crossed Wires | 100 | |
| rragewrath1 | Modulus Inutilis | 50 | |
| sharadyadav | Everything is Big | 70 | |
| ndespresso | ASCII | 5 | |
| Hamodtow | Euler's Totient | 20 | |
| sharadyadav | Modulus Inutilis | 50 | |
| francovuga | Greatest Common Divisor | 15 | |
| sharadyadav | Salty | 20 | |
| maramcys | Passwords as Keys | 50 | |
| Mirvitik | Resisting Bruteforce | 10 | |
| Mirvitik | Keyed Permutations | 5 | |
| r1ntar0 | Great Snakes | 3 | |
| gartharr1 | Real Eisenstein | 150 | |
| r1ntar0 | Finding Flags | 2 | |
| malek1230 | ASCII | 5 | |
| Hamodtow | Public Keys | 15 | |
| Yicarmueer | Modular Square Root | 35 | |
| stonepusher | You either know, XOR you don't | 30 | |
| francovuga | Lemur XOR | 40 | |
| Mirvitik | Greatest Common Divisor | 15 | |
| 0xFFFFFF | Export-grade | 100 | |
| sontesch | Base64 | 10 | |
| killk1t | You either know, XOR you don't | 30 | |
| Mirvitik | Bytes and Big Integers | 10 | |
| AlphaCicada | Great Snakes | 3 | |
| tranchsanto | SpongeBob SquarePants / Battle for Bikini Bottom - Rehydrated (HTB Cyber Apocalypse) | 0 |
You are now level Current level