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Hard Items and Pacing
What Makes an Item Hard
Summary
A hard item is not a cleverer item. It is the same three views of a busier object, and every extra corner on that object turns into extra line-work you have to account for. Knowing exactly which dials the difficulty setting turns tells you where the extra time is going to go.
What the difficulty setting actually changes
All of it is in the object, before a single view is drawn.
| What gets rolled | Easy | Medium | Hard |
|---|---|---|---|
| Steps in the master outline | 2–3 | 3–5 | 4–7 |
| Notches cut into that outline | 0–1 | 0–1 | 1–2 |
| Extra cuts afterwards | 0–1 | 2 | 2–3 |
| A second outline intersected in | 1 object in 4 | 7 in 10 | every one |
| Features on a block, posts on a plate | 2 | 2–3 | 2–3 |
| An overhanging arm | never | never | half the plates |
| Height, as a fraction of depth | 0.50–0.70 | 0.40–0.85 | 0.40–0.85 |
There is no trick in that table. Every row buys corners, and corners buy lines.
Measured over ninety items, the line-work in the asked view roughly doubles across the range: about eight solid segments and ten dashed on an easy item, about seventeen solid and twenty dashed on a hard one. The given panels move the same way — a mean of six dashed runs per panel at easy, eleven at medium, twelve at hard.
There is no gentle warm-up
Even the easy items carry more dashed line-work than solid. Across thirty easy items the asked view averaged about ten dashed segments against eight solid ones. Some of that never reaches your eye: where a buried edge falls exactly along a visible one, the solid line is drawn over it and you see one line rather than two. What is left over still has to be read, and it is there from the first item — any habit that treats the dotted channel as a later problem was never protected by the easy items in the first place.
One thing the difficulty setting does not change: the objects are built from boxes and straight-sided prisms only, so every edge in a correct view runs horizontal or vertical. Across 135 generated items, not one correct view contained a sloped or curved line. Treat that as a fact about these drills, not about the section — the test itself is not limited to boxy objects, so do not train yourself to throw out an option just because something in it slopes.
Arms that stand over the base
Only hard items grow an overhang. The generator adds one on a single post, about half the time it builds a plate, and never at easy or medium — roughly one hard item in nine ends up with one. The arm sits on top of its post and reaches out sideways, clear of everything below it.
Look at what that does from above. The arm covers the top of the post it stands on, so the post's own edge underneath is drawn dashed, sitting inside the arm's rectangle rather than on any boundary. The other post, standing bare at the far end of the plate, has nothing dotted anywhere near it. Two posts, two very different drawings — and the difference is entirely about what is on top of what.
That is also the feature most likely to break a census, because one solid object is producing two overlapping rectangles from above and a bar crossing a column from the front. Count it as one feature and account for both marks it leaves.
The frame check does not get less useful
It is tempting to think that the outline check is a beginner's move that stops paying on busy objects. It does not. Measured across 135 items, the outline alone was enough to eliminate 54 percent of wrong options at easy, 41 percent at medium and 44 percent at hard, and at every level more than four items in five had at least one option that could be thrown out on proportions before anything inside it was read.
So the order does not change when the item gets harder. If anything the discipline matters more, because a busy interior is exactly the thing that tempts you to start reading detail before you have thinned the field.
Keeping the census honest on a busy object
A long census fails by omission, not by error. On a hard object, fix a direction before you start — left to right, or top to bottom — and take the features in that order, naming each one as you pass it. The failure mode is not misjudging a feature; it is your eye jumping to the most interesting one and never coming back for the dull one next to it.
If you lose your place, restart the sweep. Guessing where you were is how a feature goes uncounted, and an uncounted feature is the one the wrong answer was built around.
The takeaway
Difficulty here means more corners, more cuts and more dashed lines — not subtler ones. The dotted channel is loaded from the very first item, so there is no phase of the section where you can safely ignore it. Overhanging arms appear only at hard and always leave a buried edge underneath them. And the outline check keeps eliminating about two wrong options in five whatever the difficulty, so it stays exactly where it was: first.
Practice Questions
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