Chapter 93: Placards and sealed blocks
Twenty yards of placards and sealed blocks
Placarded hazmat cars may not couple directly to the engine, may not be humped and may not be kicked, so they have to travel with a buffer car between them and the power.
Sealed blocks are two or three cars coupled as a unit. A pull or shove that would cut between them is refused, and a block is never humped or kicked.
20 yards, pars from 4 to 17 moves. Beside its theme, chapter 93 draws on timetables, hidden waybills and the hump, with two breathers of plain sorting and extra cars. Difficulty runs as a sawtooth: runs of easy yards, a spike, a breather.
The yards
| # | Yard | Par | The job |
|---|---|---|---|
| 1 | Yard 93.1 | 6 | Albany on 1, Concord on 2, Dover on 3, Boston on 4. |
| 2 | Yard 93.2 | 6 | Dover on 1, Erie on 2, Boston on 3, Concord on 4. Watch for a timetable. |
| 3 | Yard 93.3 | 8 | Erie on 1, Concord on 2, Albany on 3, Boston on 4. |
| 4 | Yard 93.4 | 9 | Boston on 1, Albany on 2, Concord on 3, Erie on 4. Watch for waybills unread until pulled. |
| 5 | Yard 93.5 | 8 | Dover on 1, Concord on 2, Boston on 3, Erie on 4. |
| 6 | Yard 93.6 | 8 | The outbound Dover, Albany, Dover on Track 1, Boston on 2, Erie on 3, Concord on 4. Watch for a hump yard. |
| 7 | Yard 93.7 | 5 | Albany on 1, Concord on 2, Dover on 3, Erie on 4. |
| 8 | Yard 93.8 | 5 | Erie on 1, Albany on 2, Dover on 3, Boston on 4. Watch for a timetable. |
| 9 | Yard 93.9 | 9 | Concord on 1, Boston on 2, Dover on 3, Albany on 4. |
| 10 | Yard 93.10 | 6 | Boston on 1, Concord on 2, Dover on 3, Albany on 4. |
| 11 | Yard 93.11 | 4 | The outbound Erie, Albany, Albany, Albany, Erie on Track 1, Dover on 2, Concord on 3, Boston on 4. |
| 12 | Yard 93.12 | 9 | The outbound Concord, Concord, Boston, Boston, Concord on Track 1, Dover on 2, Albany on 3, Erie on 4. Watch for a hump yard. |
| 13 | Yard 93.13 | 15 | Albany on 1, Dover on 2, Erie on 3, Concord on 4. Watch for a timetable. |
| 14 | Yard 93.14 | 9 | Boston on 1, Concord on 2, Dover on 3, Erie on 4. |
| 15 | Yard 93.15 | 15* | The outbound Albany, Concord, Concord on Track 1, Boston on 2, Dover on 3, Erie on 4. |
| 16 | Yard 93.16 | 11 | The outbound Boston, Boston, Concord, Boston, Concord on Track 1, Erie on 2, Albany on 3, Dover on 4. Watch for waybills unread until pulled. |
| 17 | Yard 93.17 | 8 | Albany on 1, Erie on 2, Dover on 3, Concord on 4. Watch for a hump yard. |
| 18 | Yard 93.18 | 8 | The outbound Albany, Boston, Boston, Boston on Track 1, Dover on 2, Erie on 3, Concord on 4. Watch for a hump yard. |
| 19 | Yard 93.19 | 12* | The outbound Erie, Boston, Boston, Boston, Erie on Track 1, Concord on 2, Dover on 3, Albany on 4. |
| 20 | Yard 93.20 | 17 | Albany on 1, Dover on 2, Erie on 3, Boston on 4. Watch for a timetable. |
* A par marked with a star is the best known line for a yard too large to solve outright.
New to the game? How to play covers pulls, shoves, goals and par in a minute.