| Title | Difficulty | Topics | Status |
|---|---|---|---|
| 1. Monsters and Hats I |
|
Logic | |
| 2. Monsters and Hats II |
|
Logic | |
| 3. The Warden's doors |
|
Probability | |
| 4. Monsters and Hats III |
|
Probability | |
| 5. Lucky Sevens |
|
Probability | |
| 6. Edge of Escape I |
|
Probability | |
| 7. Edge of Escape II |
|
Probability | |
| 8. Sliding Stick I |
|
Geometry | |
| 9. Sliding Stick II |
|
Geometry |