| Id | Title | Translations | Solved | ||
|---|---|---|---|---|---|
| 11 | Sum of digits | DE ES RU ZH SK | 13363 | 3.60 | |
| 13 | Weighted sum of digits | DE ES RU ZH SK | 10840 | 3.96 | |
| 17 | Array Checksum | DE ES RU SK | 9562 | 4.18 | |
| 12 | Modulo and time difference | DE ES RU SK | 7856 | 4.52 | |
| 14 | Modular Calculator | ES SK | 7262 | 4.66 | |
| 26 | Greatest Common Divisor | ES SK RU | 6409 | 4.88 | |
| 24 | Neumann's Random Generator | DE ES RU | 5104 | 5.27 | |
| 25 | Linear Congruential Generator | RU | 4461 | 5.51 | |
| 69 | Fibonacci Divisibility | 2100 | 6.81 | ||
| 145 | Modular Exponentiation | 892 | 8.30 | ||
| 71 | Fibonacci Divisibility Advanced | 638 | 8.88 | ||
| 143 | Extended Euclidean Algorithm | 483 | 9.37 | ||
| 144 | Modular Inverse | 315 | 10.11 | ||
| 377 | Sum of Digits Divisibility | 111 | 11.91 | ||
| 152 | RSA Cryptography | 185 | 11.03 | ||
| 148 | Public Key Cryptography Intro | 157 | 11.31 | ||
| 196 | Fibonacci Randomizer | 89 | 12.29 | ||
| 216 | Cracking Linear Congruential Generator | 74 | 12.60 | ||
| 351 | Nicomachus | 38 | 13.74 | ||
| 222 | Easter Eggs Advanced | 24 | 14.51 | ||
| 345 | Elliptic Curves Basics | 10 | 15.94 |