| Date | User | Challenge | Score |
| ch_sanan | XOR Starter | 10 | |
| Chitko | ASCII | 5 | |
| ch_sanan | Bytes and Big Integers | 10 | |
| zigzager | ASCII | 5 | |
| ch_sanan | Base64 | 10 | |
| Mikbrosim | Oracular Spectacular | 150 | |
| crypto_sis | Structure of AES | 15 | |
| br33z | ASCII | 5 | |
| s0jaku | Monoprime | 30 | |
| ch_sanan | Hex | 5 | |
| teun | Favourite byte | 20 | |
| br33z | Great Snakes | 3 | |
| PanAdamski | Adrien's Signs | 80 | |
| elgasing21 | Base64 | 10 | |
| ch_sanan | ASCII | 5 | |
| elgasing21 | Hex | 5 | |
| br33z | Finding Flags | 2 | |
| crypto_sis | Resisting Bruteforce | 10 | |
| PanAdamski | Chinese Remainder Theorem | 40 | |
| elgasing21 | ASCII | 5 | |
| PanAdamski | Modular Square Root | 35 | |
| elgasing21 | Great Snakes | 3 | |
| elgasing21 | Finding Flags | 2 | |
| wumkan | XOR Starter | 10 | |
| PanAdamski | Legendre Symbol | 35 | |
| Sp1ritedAway | Base64 | 10 | |
| gluehwuermchen | Modular Square Root | 35 | |
| Timothy_The_Goat | ASCII | 5 | |
| 0_0A | Modular Arithmetic 1 | 20 | |
| ch_sanan | Great Snakes | 3 | |
| anna_42 | Pad Thai | 80 | |
| Bisho_Reda | Base64 | 10 | |
| ch_sanan | Finding Flags | 2 | |
| teun | XOR Properties | 15 | |
| anna_42 | Oh SNAP | 120 | |
| Bisho_Reda | Hex | 5 | |
| Null_00 | Greatest Common Divisor | 15 | |
| zinccannon | Bytes and Big Integers | 10 | |
| Confiding8078 | Favourite byte | 20 | |
| Sp1ritedAway | Hex | 5 | |
| Bisho_Reda | ASCII | 5 | |
| s0jaku | RSA Decryption | 20 | |
| wadie123 | Base64 | 10 | |
| crypto_sis | Keyed Permutations | 5 | |
| Bisho_Reda | Great Snakes | 3 | |
| Veritasp | Jack's Birthday Hash | 20 | |
| wadie123 | Hex | 5 | |
| s0jaku | Great Snakes | 3 | |
| s0jaku | Finding Flags | 2 | |
| 5h4hrokh | Modular Square Root | 35 |
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