| Id | Title | Translations | Solved | ||
|---|---|---|---|---|---|
| 11 | Sum of digits | DE ES RU ZH SK | 12703 | 3.61 | |
| 13 | Weighted sum of digits | DE ES RU ZH SK | 10266 | 3.98 | |
| 17 | Array Checksum | DE ES RU SK | 9000 | 4.21 | |
| 12 | Modulo and time difference | DE ES RU SK | 7427 | 4.54 | |
| 14 | Modular Calculator | ES SK | 6872 | 4.67 | |
| 26 | Greatest Common Divisor | ES SK RU | 6042 | 4.90 | |
| 24 | Neumann's Random Generator | DE ES RU | 4793 | 5.30 | |
| 25 | Linear Congruential Generator | RU | 4157 | 5.55 | |
| 69 | Fibonacci Divisibility | 1939 | 6.87 | ||
| 145 | Modular Exponentiation | 815 | 8.38 | ||
| 71 | Fibonacci Divisibility Advanced | 569 | 9.00 | ||
| 143 | Extended Euclidean Algorithm | 449 | 9.41 | ||
| 377 | Sum of Digits Divisibility | 83 | 12.33 | ||
| 144 | Modular Inverse | 282 | 10.22 | ||
| 152 | RSA Cryptography | 170 | 11.09 | ||
| 148 | Public Key Cryptography Intro | 141 | 11.41 | ||
| 196 | Fibonacci Randomizer | 87 | 12.24 | ||
| 216 | Cracking Linear Congruential Generator | 64 | 12.77 | ||
| 351 | Nicomachus | 27 | 14.23 | ||
| 222 | Easter Eggs Advanced | 19 | 14.82 | ||
| 345 | Elliptic Curves Basics | 8 | 16.21 |