| Left and Down | 900 | Solve |
| Letters Rearranging | 900 | Solve |
| Lever | 900 | Solve |
| Lights Out | 900 | Solve |
| Like the Bitset | 900 | Solve |
| Line to Cashier | 900 | Solve |
| Lineland Mail | 900 | Solve |
| Links and Pearls | 900 | Solve |
| Little Elephant and Rozdil | 900 | Solve |
| Long Comparison | 900 | Solve |
| Longest Divisors Interval | 900 | Solve |
| Lucky Numbers | 900 | Solve |
| Lucky Year | 900 | Solve |
| Lunar New Year and Number Division | 900 | Solve |
| Lunch Rush | 900 | Solve |
| Luntik and Subsequences | 900 | Solve |
| MEX rose | 900 | Solve |
| MKnez's ConstructiveForces Task | 900 | Solve |
| Magic Numbers | 900 | Solve |
| Mainak and Array | 900 | Solve |
| Make AP | 900 | Solve |
| Make It Increasing | 900 | Solve |
| Make It Zero | 900 | Solve |