| Id | Title | Translations | Solved | ||
|---|---|---|---|---|---|
| 11 | Sum of digits | DE ES RU ZH SK | 13285 | 3.60 | |
| 13 | Weighted sum of digits | DE ES RU ZH SK | 10786 | 3.96 | |
| 17 | Array Checksum | DE ES RU SK | 9503 | 4.18 | |
| 12 | Modulo and time difference | DE ES RU SK | 7802 | 4.53 | |
| 14 | Modular Calculator | ES SK | 7217 | 4.66 | |
| 26 | Greatest Common Divisor | ES SK RU | 6370 | 4.88 | |
| 24 | Neumann's Random Generator | DE ES RU | 5054 | 5.28 | |
| 25 | Linear Congruential Generator | RU | 4410 | 5.52 | |
| 69 | Fibonacci Divisibility | 2046 | 6.85 | ||
| 145 | Modular Exponentiation | 858 | 8.36 | ||
| 71 | Fibonacci Divisibility Advanced | 611 | 8.95 | ||
| 143 | Extended Euclidean Algorithm | 471 | 9.40 | ||
| 144 | Modular Inverse | 302 | 10.17 | ||
| 377 | Sum of Digits Divisibility | 102 | 12.04 | ||
| 152 | RSA Cryptography | 179 | 11.07 | ||
| 148 | Public Key Cryptography Intro | 152 | 11.36 | ||
| 196 | Fibonacci Randomizer | 89 | 12.28 | ||
| 216 | Cracking Linear Congruential Generator | 73 | 12.62 | ||
| 351 | Nicomachus | 34 | 13.92 | ||
| 222 | Easter Eggs Advanced | 22 | 14.65 | ||
| 345 | Elliptic Curves Basics | 9 | 16.10 |