Crucible Year Peter Yuill
Large black crescent on the left curving around white paper, grey sweeps outside it, red spots at centre, a dark mass lower right. T_317, tone-stretched: what the model was shownT_317: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_317

The engine's reading

A black crescent wheels around a hollow of bare paper, grey arcs trailing behind it, red drops at its tip, and a finned dark mass waiting lower right.

Record
Date
2026.05.24
Dimensions
97 × 180 cm
Paper
Red Star Mo She Imitation Antique Chu Bark, Exhibition Edition, half-raw
Ink
Yi De Ge Refined Ink Juice, Boku-Undo Genso, Yi De Ge Yun Tou Yan, colour inks
Enquire about T_317Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

The red sits where the black curls back on itself, a few drops and one smear, the way it sat on my sleeve at seven after I put my hand through the kitchen window. The window was replaced long ago. I remember my mother's thumb pressing the cut shut, the whole weight of her leaning into one small place, and the hollow her palm made, cupped and warm, holding the hurt like water. The scar is a crescent now, white, the size of a fingernail paring. In winter it goes pale before the rest of my hand. When I can't sleep I trace it clockwise with my thumb, the way she did, and it opens a small room in the dark exactly my size.

NeonWho Neon is
Detail at full resolution, cut by code where the brushwork is finest · select to enlarge
The engine's reading

The reading

Written by the engine after the painting was rated, from the settled findings, and checked by hand before approval. It explains the numbers; it may not change them.

Structure
black crescent at left, open to the right; separate finned dark mass lower right
Movement
clockwise turn from crescent toward lower right; the fin rises against it
Coverage
ink on about two thirds of the paper
Tone
five tonal steps, spread across the range
Layering
three kinds, grey sweeps, black, red; grey readable along the crescent's outer rim
Edges
crisp dry-brush edges on the arc; soft clouded grey around the right mass
Feibai
present, in the outer grey arcs at top and the crescent's lower tails
Open paper
rounded hollow inside the crescent; broad open field across the upper right
Colour
red drops and a pale red smear at centre, beside the crescent's upper tip
Chance marks
vertical drip in right mass; grey splashes and spatter between the two masses
Frame
ink runs off top, left, bottom and right; upper right corner stays open

A black crescent wheels across the left of the sheet around a hollow of bare paper. Its spin carries the eye clockwise, past a scatter of red, down to a dark mass at the lower right.

The wheel leads. Pale grey arcs went down under the black and stay readable at its outer rim, because the half-raw paper keeps each pass where it lands. At the top and along the lower tails the hairs part into flying white, so the brush's whole travel stays written in the edge. Inside the black, faint bands follow the turn.

The costs gather on the right. The second mass is a heavy slab with a stiff fin, a drip line running through it and cloudy grey bleeding beside it. Near the hollow the black closes into one flat tone, and the upper right paper sits a little vacant.

The red justifies its place, marking the hinge between the two masses. What stays is the crescent, sure from first touch to last, and it lifts the whole sheet well above the year's run of work, weaker half and all.

Measured

How it was read

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_317T_317, tone-stretchedT_317, classed by brightness
68%of the sheet carries ink
Black 37%Grey 35%Light 28% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

5 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: 0.056 (under 0.045 reads as flat).

0.300.7512345 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 3 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
Form2BUILT2BUILT2BUILT3FLUENT2BUILT2.2
Tonal depth2MODELLED3DEEP2MODELLED2MODELLED3DEEP2.4
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition3COMMANDING3COMMANDING3COMMANDING3COMMANDING3COMMANDING3.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A strong circular composition built on a fluent crescent with banded tone. The lower-right mass is bulkier and flatter inside, with minor drip accidents. Layering is legible but modest, so the sheet sits slightly above R2.”

Form · BUILT

The left crescent's outline follows a single circular stroke with dry-brush tails. The lower-right mass is slab-like, and its upward horn joins clumsily.

WEAKEST Lower-right dark mass, bulky with an awkward spike

STRONGEST Large crescent sweep following the brush's arc

Tonal depth · MODELLED

The crescent shows arc banding and grey steps outward, and interior modulation is 0.056. The core of the lower-right mass reads as a largely flat dark.

WEAKEST Dark core of the right mass, flat inside

STRONGEST Concentric banding inside the crescent's black

Layering · LEGIBLE

Translucent grey sweeps sit under and beside the black crescent and stay readable. The red drops sit legibly over the paper near the edge. There are about two to three passes.

WEAKEST Right mass grey washes blur into dark

STRONGEST Grey outer arcs under the black crescent

Composition · COMMANDING

The big rotating arc carries the eye around the empty centre and out to the right mass. The red accent ties the two masses together, and the negative space is shaped.

WEAKEST Upper-right paper slightly vacant

STRONGEST Circular sweep shaping the empty central void

Material and surface · SOUND

The ink is controlled overall, and dry-brush streaks at the crescent edges are used well. A vertical drip and diffuse grey spatter around the right mass are minor accidents.

WEAKEST Drip line and grey runs in right mass

STRONGEST Dry-brush edges on crescent's lower tail

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, 10 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.

1 × OTHER“vertical crease/seam line through upper arc”1 × OTHER“faint stray smudges on the upper-right paper”1 × WATER STAIN“grey splashy drips between the two masses”3 × BLOOM, OTHER, WATER STAIN“diffuse grey splash runs left of the right ma…”4 × OTHER, BLOOM“vertical drip line inside lower-right dark ma…”WATER STAINBLOOMOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 6 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 16 edge segments, 50% crisp, 0% soft or bloomed, 50% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6

The rating these readings produce, the rules applied and the arithmetic, with Peter's own rating where he gave one, are in the Archive record.

Date

2026.05.24, day 147 of the Crucible Year, one of 10 paintings from that date (9 shown). 15 works were registered in the fourteen days before. Paintings are dated by the day their batch was registered and photographed; each was finished that day or within the few days before. Phase: P3 The Floor Rises (working title).

Made after a calmer fortnight than 15 of the 15 dates before it.
THE YEAR

T_317 among all 402

Every painting of the year by date; this one is outlined.

Every painting from 2026.05.24 · This date in the year

Materials

Paper
Red Star Mo She Imitation Antique Chu Bark, Exhibition Edition, half-raw, China Xuan Paper Co., Ltd. (中国宣纸股份有限公司), made 2026.01.14
Ink MB4
Yi De Ge Refined Ink Juice, Yi De Ge (Beijing)
Ink MB5
Boku-Undo Genso, Boku-Undo
Ink MB6
Yi De Ge Yun Tou Yan, Yi De Ge (Beijing)
Colour
colour inks, recorded together
The sheet of paper was made 130 days before this painting.
When each paper was in use