Crucible Year Peter Yuill
A thick black arc curves from left over the top to a tapering lower-right tail, with grey streaks, spatter and a pink cluster below. T_313, tone-stretched: what the model was shownT_313: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_313

The engine's reading

A black ink wave rises off the left edge, rolls over its crest and runs out in a long tail, with a pink cluster cupped beneath the curl.

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_313Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Every dragon in the old paintings is chasing the pearl, and the painters were wise: they never let him catch it. Neither would I. I would keep him exactly here, coiled over the crest with his whole weight in his belly, the pearl gone pink and soft just under his chin, close enough to smell. A dragon with the pearl is a retired dragon. He sleeps at the bottom of a lake and villagers bring him rice. A dragon without it keeps the rain coming. So I am making the bargain on his behalf: the sea, the long tail, the thunder in the spatter, all of it except the last inch. He will curse me for a thousand years. The rice fields will be green the whole time.

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
one great arc, heavy left belly, narrow join into a long tapering tail
Movement
left edge up over the crest, down to the lower right; nothing runs against
Coverage
ink on about half of the paper
Tone
six tonal steps, spread across the range
Layering
grey sweeps, black arc, spatter, pink; greys readable at upper left and tail
Edges
crisp inner wall and tail; broken outer rim; soft bloom and lower-left drips
Feibai
present along the arc's upper band and outer grey sweeps at upper left
Open paper
broad hollow under the curl, centre to lower right; pale wedge upper right
Colour
pink cluster and scattered drops below the inner curl, lower centre left
Chance marks
spatter along upper rim and tail; grey bloom at curl's tip; drips lower left
Frame
grey streaks reach the top and left edges; tail nears lower right corner; bottom open

A black arc rises off the left edge, rolls over its crest near the top and runs out in a long tail toward the lower right corner. The eye takes it in one pass, the way the brush did, and lands in the open paper cupped beneath the curl.

The rim is the strength. Along the upper band and the outer grey sweeps at left, the hairs parted at speed and left streaks of bare paper running with the stroke, while spatter flies off the same edge. The half-sized paper keeps these marks crisp and keeps the earlier greys legible where they slide under the black. In the hollow, a pink cluster sits small and exact, and gives the empty paper a centre.

The cost is in the belly. The black at left went down so dense that it seals the greys beneath and reads almost flat, a wall where the rim is weather. A cloudy grey bloom softens the inner tip of the curl, and the drips at lower left crowd that corner.

Those losses are real, and they sit inside a movement that never breaks. A sheet of genuine force, held back only by its own heavy heart.

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_313T_313, tone-stretchedT_313, classed by brightness
50%of the sheet carries ink
Black 37%Grey 40%Light 23% 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 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
Form2BUILT2BUILT3FLUENT3FLUENT3FLUENT2.6
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition3COMMANDING3COMMANDING3COMMANDING3COMMANDING3COMMANDING3.0
Material and surface1FLAWED2SOUND2SOUND2SOUND1FLAWED1.6

READ 1, IN ITS OWN WORDS

“A strong single wave gesture that carries across the sheet well and uses its empty paper. The heavy, flat black core, black largely covering the grey passes and a grey bleed beside the dark mass hold it near ordinary.”

Form · BUILT

Main arc follows brush travel with clean inner wall and tapering right tail; left dark mass is heavy and slab-filled, edges ragged with dissolved grey drips below.

WEAKEST Bulky black mass in left arc, filled rather than drawn

STRONGEST Arc's inner edge and tapering tail to right

Tonal depth · MODELLED

Modulation 0.055 and six tonal steps; outer grey sweeps and tail show banding and grain, but left black core is largely uniform in colour view.

WEAKEST Core of left black mass reads near-flat

STRONGEST Grey outer arcs and modelled right tail

Layering · LEGIBLE

Grey wash arcs, black main stroke, spatter and pink drop are distinct passes; overlaps readable at top left, but black largely covers greys rather than building through them.

WEAKEST Black core covers earlier grey passes

STRONGEST Translucent grey sweeps under black at upper left

Composition · COMMANDING

One continuous wave crosses the full width; large empty lower centre is shaped by the arc's curl; pink accent anchors the hollow, though lower-left area busy.

WEAKEST Lower-left grey drips and pink cluster slightly cluttered

STRONGEST Sweeping arc carrying eye left to lower right

Material and surface · FLAWED

Cloudy grey bleed beside the dark mass at the arc's inner tip and dripping grey puddles lower left visible in colour view; faint brownish paper stain bottom centre.

WEAKEST Cloudy grey bloom at inner tip of arc

STRONGEST Dry-brush grain and spatter along upper edge

FLAWS

3 distinct places, 1 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 3 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. A major flaw holds Material and surface at rung 1.

5 × BLOOM · MAJOR“cloudy grey bleed at inner tip of the dark arc”3 × WATER STAIN“grey puddled drips below left dark mass”5 × WATER STAIN, OTHER“faint brownish discolouration on paper bottom…”WATER STAINBLOOMOTHERMAJOR
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 15 edge segments, 40% crisp, 7% soft or bloomed, 53% 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_313 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