Crucible Year Peter Yuill
Wide ink painting: three heavy black curved strokes cross left to right, one rising to the top edge, under cloudy grey washes. T_256, tone-stretched: what the model was shownT_256: every pixel as the measuring code classes it
70 × 180 cm · the whole sheet, uncropped

T_256

The engine's reading

Three black ink arcs cross a long sheet from left to right, one climbing out through the top edge, under a drifting cloud of grey wash.

Record
Date
2026.04.21
Dimensions
70 × 180 cm
Paper
Tanxi Thickened Grade A Special Jing Pi Small 6-Foot (raw)
Ink
Yi De Ge Refined Ink Juice, Boku-Undo Genso, Yi De Ge Yun Tou Yan
Enquire about T_256Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

The tall arm goes out through the top edge and the ground crew never sees where. I log it as a launch. The two hulls left behind sit low in the grey, heavy, built for a gravity they no longer have to fight. Down at the bottom right, the round black drops are the pods that fell clear on the way up, sealed, still warm, landed in the wrong field. Somebody will come for them. Somebody always says that. The colony runs on that sentence for a long time. The cloud over the middle has not lifted since, and the readings call it weather, and the pods sit in the scrub with their lights blinking, patient, the size of a thumbprint.

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
three black crescents in a row, joined by grey washes behind
Movement
left to right wave; the tall left arm rises against it
Coverage
ink on about three quarters of the paper
Tone
five tonal steps, weighted dark
Layering
pale grey sweeps, mid grey washes, black strokes; readable at left and right
Edges
crisp on the black strokes; soft in the centre grey cloud; broken at stroke tails
Feibai
middle crescent, and the lower body of the left crescent
Open paper
ragged band along the top, widest at the upper left corner
Chance marks
blotchy blooms below middle stroke; stray drops lower right; cloudy stain centre top
Frame
ink runs off the left edge and the top; right and bottom stay open

Three black arcs cross the paper from left to right, and the eye rides them like a swell. The first lifts from a squared foot into a tall arm that leaves through the top edge. The second hangs in the middle; the third sinks into a dark mass at lower right.

The middle arc carries the sheet. It was pulled fast, and the hairs parted into long streaks of bare paper that follow the curve to a clean point at its left end. Raw paper grips a dry brush, so the streaks stay sharp. The left arc keeps the same banding low in its body.

Above the middle arc, grey washes laid wet on fast paper have spread into one milky cloud with no shape. The order of the passes is lost in it. Below the arc, the grey breaks into blotchy blooms. The right mass is flat, lumpy black, and the left arc begins as a blunt slab. Stray drops at lower right do no harm.

The rhythm holds and one stroke is fine. The greys around it are unsettled, and the sheet sits where most of the archive sits: fair work, no more.

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_256T_256, tone-stretchedT_256, classed by brightness
75%of the sheet carries ink
Black 49%Grey 39%Light 13% 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: 0.048 (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 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
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND1FLAWED1FLAWED1FLAWED1FLAWED1.2

READ 1, IN ITS OWN WORDS

“A gestural horizontal sheet: three black crescents over grey washes. The left and middle strokes are fluent, while the right mass is lumpy. Tone and layering are adequate, the composition is crowded in a band, and there is minor mottling. An ordinary sheet.”

Form · BUILT

Left crescent and rising stroke follow the brush's travel; middle stroke fluent. The right mass breaks into bulky lobes and drops at its base.

WEAKEST Right dark mass: lumpy lower end with blobby protrusions

STRONGEST Middle crescent stroke with dry-brush tail

Tonal depth · MODELLED

Bristle striations model the left and middle strokes; five tonal steps; grey washes behind. The right black mass is mostly flat. Modulation 0.048 is barely above flat.

WEAKEST Right dark mass interior largely flat black

STRONGEST Left crescent with striated bristle banding

Layering · LEGIBLE

Pale grey sweeps, a mid-grey cloud, then black strokes. The overlaps mostly read, but the central grey cloud blurs the sequence.

WEAKEST Central grey cloud wash fuses passes, order unclear

STRONGEST Black crescents laid over translucent grey washes

Composition · WORKING

Three crescents set up a left-to-right wave with a rising peak at the centre-left. The ink fills a dense horizontal band, and the empty top paper is barely shaped.

WEAKEST Top paper reads as leftover above a crowded band

STRONGEST Wave rhythm from left crescent to right rise

Material and surface · SOUND

Dry-brush is used well in the strokes. There is speckled mottling in the grey below the middle stroke and at the lower left, cloudy grey at the top centre, and stray drops at the bottom right.

WEAKEST Mottled spotty grey wash below middle stroke

STRONGEST Dry-brush streaking in middle and left strokes

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, 17 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.

3 × WATER STAIN, BLOOM · MAJOR“cloudy grey wash beside crescent, centre top”5 × BLOOM, OTHER“granular speckling in grey at lower left behi…”1 × BLOOM“cloudy mottled grey wash above middle stroke”5 × BLOOM, WATER STAIN · MAJOR“mottled spotting in grey wash below middle st…”3 × OTHER“stray ink drops near bottom right edge”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 18 edge segments, 56% crisp, 44% soft or bloomed, 0% 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

2026.04.21, day 114 of the Crucible Year, one of 14 paintings from that date (10 shown). 63 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: P2 The Switch (working title).

THE YEAR

T_256 among all 402

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

Every painting from 2026.04.21 · This date in the year

Materials

Paper
Tanxi Thickened Grade A Special Jing Pi Small 6-Foot (raw), Anhui Jingxian Tanxi Xuan Paper Art Products Co., Ltd., made 2015.11.19
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)
The sheet of paper was made 3806 days before this painting.
When each paper was in use