Crucible Year Peter Yuill
Archive · full record

T_410

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

Recorded

Date
2026.11.03, day 310
Size
97 × 180 cm
Paper
S14, Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper, self-sized
Inks
MB6, MB8, MB9, MB10, MC
Phase
P4 S14
Shown on the site
yes (combined score of 5.0 or more)

The combined score

Combined score
5.75
Read half
26.5
Measured half
31
The rating shown on a work page, out of 10: V23's rating times 5, plus V24's twelve tests of 50, divided by 10. 5.0 on it decides what the site shows, and it is read here at two decimals for that reason. How it is built.

Read · V23 (v23.13)

V23 rating
5.3
Form
2
Tonal depth
2
Layering
2.4
Composition
2
Material and surface
1
Ink cover
89%
Dark share
55%
Tonal steps
6
Flaws named by the reads
other 11, mud 1, bloom 3, ring 5, water stain 2
The V23 rating runs from 1 to 9, with 5 the middle of this body of work. It is the model's reading held by code's rules, and the read half of the combined score. Where Peter reviewed a run, this is the reviewed figure.

Measured · V24, from the 16-bit TIFF

Mass
4.8 of 10
Tone
10.6 of 14
Void
4.8 of 8
Flow
2.8 of 10
Balance
8 of 8
Measured half
31 of 50
Mass width in mm
rung 3 of 5
Mass width against the sheet
rung 3 of 5
Evenness of that width
rung 1 of 5
Depth of the darks
rung 5 of 5
Black plateau
rung 2 of 5
Step from mid to dark
rung 4 of 5
Evenness inside the darks
rung 2 of 5
Spread across tonal bands
rung 5 of 5
Voids gathered, not scattered
rung 3 of 5
Directions across the sheet
rung 1 of 5
Local gesture and edge
rung 2 of 5
Balance on the sheet
rung 5 of 5
Mass width
118 mm
Depth of the darks (p75 density)
1.81
Largest void, radius
166 mm
Direction alignment
0.44
Left and right asymmetry
0.33
Resolution
3.89 px per mm
Twelve deterministic tests with no model and no votes. They track physical change across the year and cannot see a mark's quality, so they are no verdict on one work. The tests and their limits.

How the number was made

Read by the Visual Analysis Engine, version 23.13, on 2026.11.03: 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_410T_410, tone-stretchedT_410, classed by brightness
89%of the sheet carries ink
Black 55%Grey 36%Light 8% 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: 0.063 (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
Form2BUILT2BUILT2BUILT2BUILT2BUILT2.0
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering2LEGIBLE3ORDERED2LEGIBLE3ORDERED2LEGIBLE2.4
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.0

READ 1, IN ITS OWN WORDS

“Layered radial fan around a pale central void, with legible violet and grey passes above; bulky, flat-leaning black masses dominate below, and a crack and scrape damage the right mass.”

Form · BUILT

Radial blocks and arcs hold coherent walls, but both lower black masses are heavy slabs, filled rather than travelled, with a clumsy step at the left mass's top edge.

WEAKEST Bulky lower-left black mass with a clumsy stepped shoulder

STRONGEST Upper-left arc band following the fan's sweep

Tonal depth · MODELLED

Upper blocks and dry-brush give a real grey range; right black mass shows mottling, but the lower-left black reads flat in colour, its stretched texture mostly paper relief.

WEAKEST Lower-left black mass, near-flat apart from paper crinkle

STRONGEST Stepped greys of the central and upper fan blocks

Layering · LEGIBLE

Violet, grey blocks and dry-brush stay legible across the upper fan, but the two black masses bury the sequence below and a murky greenish overlap clouds the upper left.

WEAKEST Lower black masses simply cover the earlier passes

STRONGEST Violet bands under translucent grey blocks, upper left and centre

Composition · WORKING

The arch and shaped central void direct the eye downward through the sheet, but near-symmetrical black masses sit static and bottom-heavy, crowding the lower corners.

WEAKEST Two heavy black masses weigh down the bottom corners

STRONGEST Fan converging on the pale central opening with spatter

Material and surface · FLAWED

A dark vertical crease and a white-flecked scrape sit in the right black mass, visible in colour; a cloudy greenish patch muddies the upper-left block. Centre dry-brush is controlled.

WEAKEST Crack and abrasion inside the right black mass

STRONGEST Dry-brush streaks breaking over paper in the centre

FLAWS

5 distinct places, 2 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 5 distinct places, 22 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. A major flaw holds Material and surface at rung 1.

5 × RING“Small ringed drop at top of the upper-left gr…”5 × MUD, BLOOM, WATER STAIN“Cloudy greenish-dark patch inside the upper-l…”7 × OTHER, BLOOM · MAJOR“White-flecked scrape or abrasion across middl…”1 × OTHER“Hard creases across the bottom-left black mas…”4 × OTHER · MAJOR“Dark vertical crack or crease line in lower p…”WATER STAINBLOOMRINGMUDOTHERMAJOR
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.

8 major flaws: applied
RULE 3Any quality below 0.5

The rating cannot exceed 4.

lowest 1.0
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid
THE ARITHMETIC

V23 rating 5.3.

Engine v23.13, 5 reads. Fixed arithmetic, the same for every painting; the constants were set on a stratified sample of 24 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 RUNG1.88(2.0 + 2.0 + 2.4 + 2.0 + 1.0) ÷ 5
→
RAW4.761 + 2 × 1.88
→
RATING5.35 + 2.086 × (4.76 − 4.60)