| Id | Title | Translations | Solved | ||
|---|---|---|---|---|---|
| 11 | Sum of digits | DE ES RU ZH SK | 12186 | 3.58 | |
| 13 | Weighted sum of digits | DE ES RU ZH SK | 9878 | 3.95 | |
| 17 | Array Checksum | DE ES RU SK | 8668 | 4.17 | |
| 12 | Modulo and time difference | DE ES RU SK | 7154 | 4.51 | |
| 14 | Modular Calculator | ES SK | 6606 | 4.64 | |
| 26 | Greatest Common Divisor | RU SK | 5845 | 4.86 | |
| 24 | Neumann's Random Generator | DE ES RU | 4623 | 5.26 | |
| 25 | Linear Congruential Generator | RU | 4010 | 5.51 | |
| 69 | Fibonacci Divisibility | 1860 | 6.85 | ||
| 145 | Modular Exponentiation | 767 | 8.38 | ||
| 377 | Sum of Digits Divisibility | 66 | 12.62 | ||
| 143 | Extended Euclidean Algorithm | 436 | 9.36 | ||
| 71 | Fibonacci Divisibility Advanced | 547 | 8.97 | ||
| 144 | Modular Inverse | 274 | 10.17 | ||
| 152 | RSA Cryptography | 161 | 11.09 | ||
| 148 | Public Key Cryptography Intro | 133 | 11.42 | ||
| 196 | Fibonacci Randomizer | 85 | 12.19 | ||
| 351 | Nicomachus | 21 | 14.55 | ||
| 216 | Cracking Linear Congruential Generator | 61 | 12.76 | ||
| 345 | Elliptic Curves Basics | 7 | 16.31 | ||
| 222 | Easter Eggs Advanced | 16 | 15.00 |