The problems come from the University of Valladolid.
| ID | Title | Level | Status |
|---|---|---|---|
| 100 | The 3n + 1 Problem | 1 | Accepted |
| 10142 | Australian Voting | 1 | Accepted |
| 10189 | Minesweeper | 1 | Accepted |
| 10033 | Interpreter | 2 | Accepted |
| 10315 | Poker Hands | 2 | Accepted |
| 10050 | Hartals | 2 | Accepted |
| 10044 | Erdös Numbers | 2 | Accepted |
| 843 | Crypt Kicker | 2 | Accepted |
| 10010 | Where's Waldorf? | 2 | Accepted |
| 850 | Crypt Kicker II | 2 | Accepted |
| 120 | Stacks of Flapjacks | 2 | Accepted |
| 10152 | ShellSort | 2 | Accepted |
| 10138 | CDVII | 2 | Accepted |
| 10037 | Bridge | 3 | Accepted |
| 10026 | Shoemaker's Problem | 2 | Accepted |
| 10127 | Ones | 2 | Accepted |
| 847 | A Multiplication Game | 3 | Accepted |
| 10213 | How Many Pieces of Land? | 2 | Accepted |
| 10198 | Counting | 2 | Accepted |
| 10049 | Self-Describing Sequence | 2 | Accepted |
| 846 | Steps | 2 | Accepted |
| 10110 | Light, More Light | 1 | Accepted |
| 10104 | Euclid Problem | 1 | Accepted |
| 861 | Little Bishops | 2 | Accepted |
| 10128 | Queue | 2 | Accepted |
| 10034 | Freckles | 2 | Accepted |
| 10249 | The Grand Dinner | 4 | Accepted |
| 10131 | Is Bigger Smarter? | 2 | Work in progress |
| 10069 | Distinct Subsequences | 3 | Accepted |
| 10154 | Weights and Measures | 3 | Accepted |
| 10003 | Cutting Sticks | 2 | Accepted (C). TLE (Python) |