| Alias | Your score | Title | Solved # |
|---|---|---|---|
| CEOI18_lot | Lottery Batch | 253 | |
| CEOI18_toy | Toys Batch | 310 | |
| CEOI18_tri | Triangles Batch | 118 | |
| CEOI19_amusementpark | Amusement Park Batch | 80 | |
| CEOI19_countsquares | Count Squares Batch | 33 | |
| CEOI19_cubeword | Cubeword Batch | 125 | |
| CEOI19_diameter | Dynamic Diameter Batch | 212 | |
| CEOI19_magictree | Magic Tree Batch | 214 | |
| CEOI19_scissors | Scissors and Tape Batch | 8 | |
| CEOI19_separator | Separator Batch | 13 | |
| CEOI19_skyscrapers | Building Skyscrapers Batch | 13 | |
| CEOI19_towerdefense | Tower Defense Batch | 11 | |
| CEOI20_chessrush | Chess Rush Batch | 12 | |
| CEOI20_cleaning | Spring cleaning Batch | 150 | |
| CEOI20_fancyfence | Fancy Fence Batch | 385 | |
| CEOI20_potion | The Potion of Great Power Interactive | 84 | |
| CEOI20_roads | Roads Batch | 26 | |
| CEOI20_startrek | Star Trek Batch | 68 | |
| CEOI21_diversity | Diversity Batch | 71 | |
| CEOI21_ltriominoes | L-triominoes Batch | 21 | |
| CEOI21_newspapers | Newspapers Batch | 77 | |
| CEOI21_tortoise | Tortoise Batch | 16 | |
| CEOI21_wells | Wells Batch | 4 | |
| CEOI22_abracadabra | Abracadabra Batch | 130 | |
| CEOI22_drawing | Drawing Batch | 41 |
