Krillion Recorded answers
251 recorded answers
How to approach it
Treat the prompt as a vocabulary retrieval task rather than a definition task. Begin by listing the words a school syllabus attaches to drawn figures, then push into the terminology used by competitive mathematics and specialist reference works, where nearly every classical configuration has been given its own label. Read the judging rules carefully: the target is a component of a figure, so whole-figure names, measurements expressed as formulas, and playful inventions all fall outside. From your list, keep the entries you can defend in one clause — a label a textbook would print beside a diagram. Rank what remains by how unusual it is, because the scoring rewards the deepest cut of the specialist glossary over the half-dozen words every solver will produce. Submit the rarest term you can define correctly.
Get a hint
Geometry keeps a separate vocabulary for the anatomy of figures — the labels printed next to a diagram, not the names of the figures themselves. Start with whatever a school textbook circles in ink.
A little more
Widen past the obvious: the vocabulary runs from simple measurable features of circles and solids to the elaborate named points and reference lines that specialist literature attaches to a single figure.
One step further
Go hunting through glossary entries, diagram keys and index pages of advanced geometry, then choose the term whose obscurity matches how rarely a casual solver would reach for it.
Reveal answers 251
- Polyhedral angleDeep Cut85points
- Power pointDeep Cut85points
- Prasolov pointDeep Cut85points
- Rigby pointDeep Cut85points
- Schiffler pointDeep Cut85points
- Schoute centerDeep Cut85points
- Semi-axisDeep Cut85points
- Semi-latus rectumDeep Cut85points
- Semi-major axisDeep Cut85points
- Semi-minor axisDeep Cut85points
- SemiordinateDeep Cut85points
- SextantDeep Cut85points
- Sharygin pointDeep Cut85points
- Simson lineDeep Cut85points
- Small circleDeep Cut85points
- Soddy centerDeep Cut85points
- Soddy lineDeep Cut85points
- Solid angleDeep Cut85points
- Space diagonalDeep Cut85points
- Spherical angleDeep Cut85points
- Spherical capDeep Cut85points
- Spherical sectorDeep Cut85points
- Spherical segmentDeep Cut85points
- Spherical wedgeDeep Cut85points
- Spherical zoneDeep Cut85points
- Spieker centerDeep Cut85points
- SpireDeep Cut85points
- SplitterDeep Cut85points
- Steiner curvature centroidDeep Cut85points
- Steiner pointDeep Cut85points
- SymmedianDeep Cut85points
- Symmedian pointDeep Cut85points
- Tarry pointDeep Cut85points
- Taylor centerDeep Cut85points
- Third Brocard pointDeep Cut85points
- Tixier pointDeep Cut85points
- Transverse axisDeep Cut85points
- Trisected perimeter pointDeep Cut85points
- Trisection pointDeep Cut85points
- UmbilicDeep Cut85points
- Van Aubel lineDeep Cut85points
- Van Lamoen circumcenters pointDeep Cut85points
- Vecten pointDeep Cut85points
- Vertex centroidDeep Cut85points
- Vertex figureDeep Cut85points
- Villarceau circlesDeep Cut85points
- Wabash centerDeep Cut85points
- Weill pointDeep Cut85points
- Yff center of congruenceDeep Cut85points
- Yff parabolic pointDeep Cut85points
Why these answers count
Scoring here tracks rarity within the accepted set, and the spread is unusually flat: of 249 recorded answers, 228 cleared the top band, with 201 landing on 85 points and only 26 on 60. The single 100-point answer, Sagitta, is the height of a circular arc measured from chord to curve, a term that lives in surveying and drafting rather than school revision, so almost nobody reaches it first. The 85-point band is the deep shelf of the subject: Apothem, Circumcenter, Inradius, Dihedral angle — terms a strong student recognises but a casual solver never volunteers. The 60-point group is the crowded middle, the handful of features anyone can name in ten seconds, which the grading treats as necessary but unremarkable. Practical reading: length is not what pays, obscurity plus defensibility is. A two-word phrase no one else thought of beats a correct but obvious one by a wide margin, and the one outlier at the top shows how far that logic stretches.