| 1. Put a ring on it. | Data StructuresBasics Google | Easy 1 | 22% 11 / 49 |
| 2. Add to 13 | | Easy 1 | 23% 10 / 44 |
| 3. It's over for you. (if you can't do this) | | Easy 1.5 | 24% 8 / 33 |
| 4. Know your limits. (Easy version) | BasicsData Structures +1 Akuna Capital | Easy 1.5 | 31% 4 / 13 |
| 5. Know your limits. (Hard version) | Data StructuresNetworking +1 Akuna Capital | Easy+ 2 | 60% 3 / 5 |
| 6. CorrelationTTV (Easy version) | | Easy+ 2 | 22% 2 / 9 |
| 7. Crafter | | Easy+ 2 | 33% 1 / 3 |
| 8. burn this image into the retina of my eye | Machine LearningBasics Meta | Easy+ 2 | 60% 3 / 5 |
| 9. Ouroboros | | Easy+ 2.5 | 31% 5 / 16 |
| 10. Pixel Budget | AlgorithmsBasics +1 Anthropic | Easy+ 2.5 | 100% 1 / 1 |
| 11. Ok Garmin, save video | Data StructuresBasics Amazon | Easy+ 2.5 | 67% 2 / 3 |
| 12. Down the Rabbit-Hole | MathBasics +1 Jane Street | Normal 3 | 17% 1 / 6 |
| 13. The Answer to the Ultimate Question of Life, the Universe, and Everything | BasicsMemory Management HRT | Normal 3 | 21% 8 / 39 |
| 14. Let's Connect! (Easy version) | BasicsGame Theory Citadel | Normal 3 | 100% 3 / 3 |
| 15. Stronger Together | | Normal 3 | 100% 1 / 1 |
| 16. Time-Windowed Join | Data StructuresBasics Google | Normal 3.5 | 14% 1 / 7 |
| 17. The Amazing Race 1 | | Normal 3.5 | 17% 2 / 12 |
| 18. You're naive. | Machine LearningMath +1 GoogleMeta | Normal+ 4 | 14% 1 / 7 |
| 19. CorrelationTTV (Hard version) | | Normal+ 4 | 17% 1 / 6 |
| 20. Omniscient Reader's Viewpoint | MathMachine Learning +1 Meta | Normal+ 4 | 17% 1 / 6 |
| 21. We live in a simulation. | | Normal+ 4 | 60% 3 / 5 |
| 22. Escape the Matrix | Data StructuresDesign Patterns +2 Voleon | Normal+ 4 | 100% 1 / 1 |
| 23. One step forward, two steps back | AlgorithmsMath +1 Anthropic | Normal+ 4 | 100% 1 / 1 |
| 24. Hashring | Data StructuresBasics Anthropic | Normal+ 4.5 | 33% 1 / 3 |
| 25. Multidimensional Virtual Arcade | Design PatternsGame Theory +1 Citadel | Normal+ 4.5 | 100% 1 / 1 |
| 26. Do you think he clicks? | | Hard 5 | 100% 2 / 2 |
| 27. Knock on wood | ConcurrencyDesign Patterns +1 Nvidia | Hard 5 | 67% 2 / 3 |
| 28. We were all SYNners. | Data StructuresNetworking Millennium | Hard 5 | 100% 1 / 1 |
| 29. Design an in-memory file system | Data StructuresMemory Management +1 Meta | Hard 5.5 | 14% 2 / 14 |
| 30. Return by Death | BasicsMachine Learning +1 Anthropic | Hard 5.5 | 100% 1 / 1 |
| 31. One, Two, Skip a few... | Memory ManagementData Structures Optiver | Hard 5.5 | 100% 1 / 1 |
| 32. I'm single. | Data StructuresConcurrency +2 Akuna Capital | Harder 6 | 11% 4 / 35 |
| 33. Let's Connect! (Hard version) | | Harder 6 | 100% 2 / 2 |
| 34. Porphyrophobia | Design PatternsNetworking +1 Meta | Harder 6 | 6% 2 / 35 |
| 35. The NOexistenceN of you AND me | Machine LearningData Structures +1 Millennium | Insane 7 | 100% 2 / 2 |
| 36. Return to Sender | | Insane 7.5 | 100% 1 / 1 |
| 37. Pool party! | Design PatternsOperating Systems +2 Akuna Capital | Expert 8 | 10% 1 / 10 |
| 38. Consumerism (Easy version) | Data StructuresDesign Patterns +2 | Master 9 | 100% 2 / 2 |
| 39. Consumerism (Hard version) | Operating SystemsDesign Patterns +3 | Grandmaster 10 | 67% 2 / 3 |