| Date | User | Challenge | Score |
| b0urb0n | Hex | 5 | |
| b0urb0n | ASCII | 5 | |
| TeaQuicky | Network Attacks | 5 | |
| scriptboyi | XOR Starter | 10 | |
| MahmoodTavafoghi | Adrien's Signs | 80 | |
| jskeob | Square Eyes | 35 | |
| TeaQuicky | ZKP Introduction | 5 | |
| bashrc | RSA Backdoor Viability | 175 | |
| vdam | SSH Keys | 35 | |
| Brock_hash | You either know, XOR you don't | 30 | |
| scriptboyi | Bytes and Big Integers | 10 | |
| b0urb0n | Finding Flags | 2 | |
| b0urb0n | Network Attacks | 5 | |
| vdam | Privacy-Enhanced Mail? | 25 | |
| Vicusol | Quadratic Residues | 25 | |
| Nyunseo | Curves and Logs | 40 | |
| Cano_il_Marsi | Gram Schmidt | 30 | |
| Fafer | Greatest Common Divisor | 15 | |
| jskeob | Inferius Prime | 30 | |
| TeaQuicky | Export-grade | 100 | |
| bashrc | Let's Decrypt Again | 175 | |
| scriptboyi | Base64 | 10 | |
| Fafer | Lemur XOR | 40 | |
| bashrc | Vote for Pedro | 150 | |
| TixMugi | Modular Arithmetic 1 | 20 | |
| Vicusol | Modular Inverting | 25 | |
| nprat | Symmetry | 50 | |
| Nyunseo | Scalar Multiplication | 35 | |
| scriptboyi | Hex | 5 | |
| bashrc | Endless Emails | 150 | |
| bashrc | Infinite Descent | 50 | |
| jskeob | Moving Problems | 150 | |
| b0urb0n | Great Snakes | 3 | |
| bashrc | Everything is Still Big | 100 | |
| MahmoodTavafoghi | Chinese Remainder Theorem | 40 | |
| WertherSamsa | Quadratic Residues | 25 | |
| TeaQuicky | Parameter Injection | 60 | |
| scriptboyi | ASCII | 5 | |
| bashrc | Crossed Wires | 100 | |
| Vicusol | Modular Arithmetic 2 | 20 | |
| Cano_il_Marsi | Size and Basis | 15 | |
| bashrc | Everything is Big | 70 | |
| Nyunseo | Point Addition | 30 | |
| bashrc | Inferius Prime | 30 | |
| farkasmia2 | Finding Flags | 2 | |
| bashrc | Square Eyes | 35 | |
| Cano_il_Marsi | Vectors | 10 | |
| EmmanuelGoldberg | Lo-Hi Card Game | 120 | |
| MrCobblepot | Export-grade | 100 | |
| WertherSamsa | Modular Inverting | 25 |
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