Crucible Year Peter Yuill
Archive · full record

T_413

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
6.18
Read half
25
Measured half
36.8
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
Form
2
Tonal depth
1
Layering
2
Composition
2
Material and surface
2
Ink cover
88%
Dark share
78%
Tonal steps
2
Flaws named by the reads
other 10, mud 2, dead ink 1
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
9.4 of 10
Tone
6.6 of 14
Void
6.4 of 8
Flow
6.4 of 10
Balance
8 of 8
Measured half
36.8 of 50
Mass width in mm
rung 5 of 5
Mass width against the sheet
rung 5 of 5
Evenness of that width
rung 4 of 5
Depth of the darks
rung 4 of 5
Black plateau
rung 1 of 5
Step from mid to dark
rung 0 of 5
Evenness inside the darks
rung 3 of 5
Spread across tonal bands
rung 2 of 5
Voids gathered, not scattered
rung 4 of 5
Directions across the sheet
rung 2 of 5
Local gesture and edge
rung 5 of 5
Balance on the sheet
rung 5 of 5
Mass width
207 mm
Depth of the darks (p75 density)
1.68
Largest void, radius
109 mm
Direction alignment
0.30
Left and right asymmetry
0.41
Resolution
3.90 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_413T_413, tone-stretchedT_413, classed by brightness
88%of the sheet carries ink
Black 78%Grey 17% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

2 families of tone.

Every inked pixel's brightness in 64 bins, smoothed; each circled peak holds at least 4% of the ink. Two or fewer: Tonal depth is held at the bottom rung whatever the model reads. A dense sheet of many translucent passes can count low here, so Layering is left to the reads. Life inside the black: 0.058 (under 0.045 reads as flat).

0.300.7512 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 depth1THIN2MODELLED2MODELLED2MODELLED2MODELLED1.8
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A strong arc structure around a pale central channel, but two heavy, nearly flat black masses dominate. Layering and colour stay legible mainly at the upper edges, leaving an ordinary sheet with thin tonal life.”

Form · BUILT

Concentric arcs hold as nameable forms with firm walls, especially the right curve; left and right black masses stay bulky, and upper-right patches break into stepped blocks.

WEAKEST Left black mass, a bulky slab with a blunt inner edge

STRONGEST Right mass's long outer arc following the brush's sweep

Tonal depth · THIN

Two huge black masses dominate, reading flat in colour; modulation of 0.058 is barely above flat. Only faint stretched-view gradients and inner arcs; life stays in upper bands and edges.

WEAKEST Left black mass, nearly uniform in the colour view

STRONGEST Upper grey arc bands with visible banding and stepped density

Layering · LEGIBLE

Translucent grey arcs, darker bands and colour read in order along the upper edges and lower inner arcs, but the blacks swallow most overlaps across the sheet's centre.

WEAKEST Black centres, where later passes largely cover earlier ones

STRONGEST Upper-right stepped grey and colour passes overlapping legibly

Composition · WORKING

Two arcs turn around a shaped pale channel and open circle, giving direction, but massive blacks fill most of the frame and movement stalls inside them.

WEAKEST Heavy lower masses crowd the sheet; large areas sit dead

STRONGEST Pale central channel opening into the lower-centre arc

Material and surface · SOUND

Ink is controlled with firm edges and deliberate colour; small scratch-like marks at bottom right and brown fused colour at upper right stay peripheral. Black interiors show little material behaviour.

WEAKEST Inert black surface across the big masses

STRONGEST Dry-brushed ragged edges along the central channel

FLAWS

5 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 5 distinct places, 13 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.

3 × OTHER“Thin pale horizontal line near the top of the…”3 × MUD, OTHER“Red ink fused brown with grey-black in the up…”1 × OTHER“Thin pale line marks in the upper part of the…”1 × DEAD INK“Large near-uniform black interior of the righ…”5 × OTHER“Pale scratch-like marks in the black at the l…”DEAD INKMUDOTHER
RULE 1Two tonal steps or fewer

Tonal depth held at rung 1.

2 steps: 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 1.8
RULE 4At least two valid reads

A read that breaks the reply format is discarded.

5 of 5 valid

Caps the code applied: {"run_id":"T_413","cap_no":1,"read_no":2,"cap_text":"sample 2: T 2->1: tonal_steps=2 (<=2)"}; {"run_id":"T_413","cap_no":2,"read_no":3,"cap_text":"sample 3: T 2->1: tonal_steps=2 (<=2)"}; {"run_id":"T_413","cap_no":3,"read_no":4,"cap_text":"sample 4: T 2->1: tonal_steps=2 (<=2)"}; {"run_id":"T_413","cap_no":4,"read_no":5,"cap_text":"sample 5: T 2->1: tonal_steps=2 (<=2)"}.

THE ARITHMETIC

V23 rating 5.0.

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 RUNG1.96(2.0 + 1.8 + 2.0 + 2.0 + 2.0) ÷ 5
→
RAW4.921 + 2 × 1.96
→
RATING5.75 + 2.086 × (4.92 − 4.60)