| # | title | topic | type | difficulty |
|---|---|---|---|---|
| 121 | Two hours after the incident, it happened again | WebSockets | gap | Hard |
| 122 | The reconnect that waited for an event nobody delivered | WebSockets | Multiple choice | Hard |
| 123 | The hotel wifi and the dead server look the same | WebSockets | Multiple choice | Hard |
| 124 | The move with no score went last, and the comparator never saw it | Sorting Algorithms | Multiple choice |
| Hard |