| # | Name | Source | Solved |
|---|---|---|---|
| 5429 | A (Fast) Walk in the Woods | ECNA 2023 | ×5 |
| 5428 | Split Decisions | ECNA 2023 | ×10 |
| 5427 | Pearls | ECNA 2023 | ×3 |
| 5426 | ISBN Conversion | ECNA 2023 | ×15 |
| 5425 | Impartial Strings | ECNA 2023 | ×6 |
| 5424 | Forest for the Trees | ECNA 2023 | ×9 |
| 5423 | Double Up | ECNA 2023 | ×12 |
| 5422 | Cornhusker | ECNA 2023 | ×14 |
| 5421 | Convex Hull Extension | ECNA 2023 | ×3 |
| 5420 | Prof. Fumblemore and the Collatz Conjecture | ECNA 2023 | ×13 |
| 5419 | B Road Band | ECNA 2023 | ×14 |
| 5418 | A Pivotal Question | ECNA 2023 | ×18 |