| Date | User | Challenge | Score |
| shaked_srabstein | Extended GCD | 20 | |
| shamandeer | Favourite byte | 20 | |
| KyleLee | Chinese Remainder Theorem | 40 | |
| givemeyourname | Modular Inverting | 25 | |
| KyleLee | Modular Square Root | 35 | |
| ikael | Export-grade | 100 | |
| shura356 | Prime and Prejudice | 200 | |
| TheRogerLost | Hex | 5 | |
| NathR | Quadratic Residues | 25 | |
| NathR | Modular Inverting | 25 | |
| Monz | Finding Flags | 2 | |
| givemeyourname | Modular Arithmetic 2 | 20 | |
| me2m8 | Jeff's LFSR | 150 | |
| abcdefghijklmno | Hex | 5 | |
| star_juniper | You either know, XOR you don't | 30 | |
| NathR | Modular Arithmetic 2 | 20 | |
| kanellam | Confusion through Substitution | 25 | |
| givemeyourname | Modular Arithmetic 1 | 20 | |
| TheRogerLost | ASCII | 5 | |
| mypalpal | Armory | 100 | |
| vluux | Base64 | 10 | |
| NathR | Modular Arithmetic 1 | 20 | |
| Nano55 | Great Snakes | 3 | |
| Nano55 | Finding Flags | 2 | |
| givemeyourname | Extended GCD | 20 | |
| vluux | Hex | 5 | |
| fer2o3 | RSA or HMAC? | 35 | |
| 0xs1nr | Parameter Injection | 60 | |
| NathR | Extended GCD | 20 | |
| NathR | Greatest Common Divisor | 15 | |
| gasmer | Working with Fields | 10 | |
| TheRogerLost | Great Snakes | 3 | |
| kanellam | Round Keys | 20 | |
| fer2o3 | JWT Secrets | 25 | |
| PARK_JOONSEOK | Base64 | 10 | |
| qwra | Favourite byte | 20 | |
| fer2o3 | No Way JOSE | 20 | |
| TheRogerLost | Finding Flags | 2 | |
| gasmer | Modulus Inutilis | 50 | |
| TheDara | Quadratic Residues | 25 | |
| star_juniper | Favourite byte | 20 | |
| givemeyourname | Greatest Common Divisor | 15 | |
| vluux | ASCII | 5 | |
| TheDara | Modular Inverting | 25 | |
| vluux | Network Attacks | 5 | |
| runef | ECB Oracle | 60 | |
| gasmer | Salty | 20 | |
| gasmer | Manyprime | 40 | |
| SSKMF | Chinese Remainder Theorem | 40 | |
| TheDara | Modular Arithmetic 2 | 20 |
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