| Id | Title | Translations | Solved | ||
|---|---|---|---|---|---|
| 11 | Sum of digits | DE ES RU ZH SK | 12475 | 3.59 | |
| 13 | Weighted sum of digits | DE ES RU ZH SK | 10094 | 3.95 | |
| 17 | Array Checksum | DE ES RU SK | 8849 | 4.18 | |
| 12 | Modulo and time difference | DE ES RU SK | 7319 | 4.51 | |
| 14 | Modular Calculator | ES SK | 6765 | 4.65 | |
| 26 | Greatest Common Divisor | ES SK RU | 5954 | 4.87 | |
| 24 | Neumann's Random Generator | DE ES RU | 4726 | 5.27 | |
| 25 | Linear Congruential Generator | RU | 4095 | 5.52 | |
| 69 | Fibonacci Divisibility | 1898 | 6.86 | ||
| 145 | Modular Exponentiation | 790 | 8.38 | ||
| 71 | Fibonacci Divisibility Advanced | 557 | 8.98 | ||
| 143 | Extended Euclidean Algorithm | 440 | 9.39 | ||
| 377 | Sum of Digits Divisibility | 79 | 12.36 | ||
| 144 | Modular Inverse | 277 | 10.19 | ||
| 152 | RSA Cryptography | 164 | 11.10 | ||
| 148 | Public Key Cryptography Intro | 138 | 11.40 | ||
| 196 | Fibonacci Randomizer | 86 | 12.21 | ||
| 216 | Cracking Linear Congruential Generator | 63 | 12.74 | ||
| 351 | Nicomachus | 25 | 14.31 | ||
| 222 | Easter Eggs Advanced | 18 | 14.85 | ||
| 345 | Elliptic Curves Basics | 7 | 16.36 |