| # | title | topic | type | difficulty |
|---|---|---|---|---|
| 121 | The same check, in one pass of methods | Algorithms & Recursion | Coding | Medium |
| 122 | The same prefix, without shrinking a guess | Algorithms & Recursion | Coding | Medium |
| 123 | Where is the black queen? | Algorithms & Recursion | gap | Medium |
| 124 | Look at the best capture first | Sorting Algorithms | gap | Medium |
| 125 |
| Rank first, then file, and the falsy trap between them |
| Sorting Algorithms |
| gap |
| Medium |
| 126 | Bishop and knight are both worth three | Sorting Algorithms | Multiple choice | Medium |