Crucible Year Peter Yuill
Archive · full record

T_337

The work as shown. Every value below comes from vae.db, the master database of the Crucible Year.

Recorded

Date
2026.06.03, day 157
Size
97 × 180 cm
Paper
S12, Red Star Mo She Special Effect Xieyi, half-raw
Inks
MB4, MB5, MB6
Phase
P3 The Floor Rises
Shown on the site
yes (V23 rating of 5.0 or higher)
Early storage triage
SHP: save, has potential (Peter's early system, since retired)

Measured · V23 (v23.8)

V23 rating
7
Form
2.4
Tonal depth
2
Layering
3
Composition
2
Material and surface
2
Ink cover
85%
Dark share
59%
Tonal steps
6
Flaws named by the reads
other 11
The V23 rating runs from 1 to 9, with 5 the middle of this body of work. It is the engine's reading, and the reference the archive is measured against.

Peter's own rating

Rating
8
Peter's rating is his own eye, not the engine's, and he never gives a 10.
“There is always something that can be done better.”
Peter Yuill · 2026.07.02

Older engine

V10C
8
From an earlier engine (V10C). Its scale differs from V23's, so it is only ever compared with other readings by the same engine.

How the number was made

Read by the Visual Analysis Engine, version 23.8, on 2026.10.06: measured by code, then read 5 times by Claude Opus 5.5 against three reference paintings (R1 to R3), each read independent of the others. How the engine works.

WHAT THE CODE SEES

Three views of one sheet.

Left, the photograph. Centre, the tone stretch the model is shown beside it: the darkest 45% of tones spread over the whole range, so flat black, banding and stains show. Right, every pixel as the measuring code classes it: cyan black ink, deep teal translucent grey, stone the palest ink, near black bare paper.

T_337T_337, tone-stretchedT_337, classed by brightness
85%of the sheet carries ink
Black 59%Grey 28%Light 13% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

6 families of tone.

Every inked pixel's brightness in 64 bins, smoothed; each circled peak holds at least 4% of the ink. Life inside the black: 0.055 (under 0.045 reads as flat).

0.300.75123456 BLACK INK TRANSLUCENT GREYS PALEST INK, 0.88 LUMINANCE OF EVERY INKED PIXEL, 64 BINS. PAPER (ABOVE 0.88) IS LEFT OUT.
FIVE READS

Five reads, agreeing on 4 of 5 qualities.

Each quality placed on its ladder by each read, and the mean the engine keeps. Where reads differ, they differ by one rung; close calls resolve down.

READ 1READ 2READ 3READ 4READ 5MEAN
Form2BUILT2BUILT2BUILT3FLUENT3FLUENT2.4
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering3ORDERED3ORDERED3ORDERED3ORDERED3ORDERED3.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A radial arc composition in the manner of R3, with clear translucent layering, but heavier and more crowded. The large lower-right black is bulky and flat inside, which keeps form, tone and composition at an ordinary level.”

Form · BUILT

Concentric arc bands hold their walls and follow the sweep; the lower-right black mass and top-right inner rectangle read as bulky, filled slabs.

WEAKEST Heavy lower-right black block, bulky and filled in

STRONGEST Upper central dark arc band following brush travel

Tonal depth · MODELLED

Upper arcs show banding, dry streaks and grain; grey left bands stepped. Large lower-right black is mostly flat; modulation 0.055 only modest.

WEAKEST Lower-right black mass, near-uniform interior

STRONGEST Upper central arc band with brush banding and grain

Layering · ORDERED

Six tonal steps; pale, mid and dark arc passes overlap translucently in a readable order on left and top right, building depth like R3.

WEAKEST Lower-right black covers earlier passes opaquely

STRONGEST Stepped translucent grey arcs on left and top right

Composition · WORKING

Radial arcs carry the eye round to the open circle at bottom centre; the white gap is shaped, but 85% coverage leaves the right crowded and weighty.

WEAKEST Crowded, heavy dark lower right

STRONGEST White vertical channel opening into bottom-centre circle

Material and surface · SOUND

Ink controlled; small ink drops near left-centre gap and a speck at right edge; paper creases visible in tone-stretched darks, not disruptive.

WEAKEST Stray drips beside left-centre grey bands

STRONGEST Dry-brush trailing edges at bottom right of arcs

FLAWS

4 distinct places, 0 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 4 distinct places, 11 mentions in all across 5 reads; the number in each ninth is how many times a flaw was named there. Reads agreeing on a place strengthen the evidence for one flaw; they do not multiply it.

2 × OTHER“small ink drips beside grey bands at left-cen…”4 × OTHER“small dark specks at right edge”3 × OTHER“Small grey drips beside left arc ends in cent…”WHOLE SHEET · 2 × OTHEROTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 2 principal ink masses traced (cyan), 3 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 18 edge segments, 50% crisp, 50% soft or bloomed, 0% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

6 steps: not applied
RULE 2A major flaw

Material held at rung 1. Mild waves in the unmounted paper are never a flaw.

none named
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 2.0
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 7.0.

Engine v23.8, 5 reads. Fixed arithmetic, the same for every painting; the constants were set on 24 randomly chosen paintings so the median sheet scores 5. The scale is relative to this archive, not to painting in general, and a difference of less than half a point between two paintings is noise.

MEAN RUNG2.28(2.4 + 2.0 + 3.0 + 2.0 + 2.0) ÷ 5
→
RAW5.561 + 2 × 2.28
→
RATING7.05 + 2.086 × (5.56 − 4.60)