Crucible Year Peter Yuill
Wide grey and black ink painting: dark sweeping strokes at lower left rise toward a large mottled grey mass with dark streaks on the right. T_149, tone-stretched: what the model was shownT_149: every pixel as the measuring code classes it
70 × 180 cm · the whole sheet, uncropped

T_149

The engine's reading

Black sweeps rise from the lower left of a long sheet into a broad mottled grey field, raked with dark streaks and crossed by pale tide lines.

Record
Date
2026.03.27
Dimensions
70 × 180 cm
Paper
Tanxi Thickened Grade A Special Jing Pi Small 6-Foot (raw)
Ink
Kuretake Shogei Kiwami, Yi De Ge Zhonghua, Boku-Undo Bokkou
Enquire about T_149Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

The pale lines in the grey on the right are where water stopped and dried in place. My grandmother had a burn on her forearm from an oven door, a smooth shoreline of a scar, and she traced its edge with her thumb while she talked about other things. We never asked about it. It was the high-water mark of one bad afternoon, and she wore it like a watch. The grey here has a dozen of those shorelines, none of them asked about, each wet minute held exactly as far as it reached and not a hair further. I know a hand that goes back to the same edge. Her thumb on the ridge, the kettle ticking as it cooled.

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
tapering dark sweep and lobed black core rising into broad grey right mass
Movement
rising diagonal, lower left to upper right; upper arc and centre hook curl back
Coverage
ink on about four fifths of the paper
Tone
seven tonal steps, weighted to the middle greys
Layering
pale washes, mid-grey sweeps, black strokes; distinct at left, merged at right
Edges
crisp tide lines upper right and centre; soft blurred walls on black core and right mass
Feibai
present in the curved grey arc upper left of centre
Open paper
wedge at top left and top centre, shaped by the arc
Chance marks
ringed pale drops top centre; tide lines and cloudy blooms across right mass
Frame
ink runs off bottom, right and lower left; top left stays open

The eye lands on the black at left centre and is carried up and to the right, along a long rise that ends in grey filling most of the right half. The sheet leans one way, and it leans clearly.

The left is where the painting happens. A tapering dark stroke sweeps in from the edge and thins to a dry tail, and beneath it pale grey wedges stay distinct as washes, so the order reads: grey first, black pulled over. Above, a curved arc breaks into parallel streaks of bare paper and gives the open paper at top left a real contour.

The right half gives ground. Its grey mass is a slab with a ragged edge and no stroke inside to hold it. Raw paper takes ink fast and lets it spread, and here the passes have sunk together into cloudy mottling, crossed by pale tide lines where one wash dried against another. The dark spatter flying across cannot give that field a centre, and the central black is flat inside.

That leaves a sheet with one strong side: a clear diagonal and a confident left, spent on a right side that never comes into focus.

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_149T_149, tone-stretchedT_149, classed by brightness
80%of the sheet carries ink
Black 18%Grey 68%Light 14% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

7 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: 0.053 (under 0.045 reads as flat).

0.300.751234567 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, one answer.

Each quality placed on its ladder by each read, and the mean the engine keeps.

READ 1READ 2READ 3READ 4READ 5MEAN
Form2BUILT2BUILT2BUILT2BUILT2BUILT2.0
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.0

READ 1, IN ITS OWN WORDS

“Rising diagonal gesture with a decent left black stroke over grey washes, but the right half is a crowded, cloudy mottled field with tide edges. Ordinary across the board, close to R2, and weaker on material.”

Form · BUILT

Sweeping left stroke and centre-right hooked stroke follow brush travel; the central black mass is a bulky lobed patch whose walls partly dissolve into the grey.

WEAKEST Left-centre black mass, lobed and partly dissolved

STRONGEST Long tapering dark stroke sweeping in from left edge

Tonal depth · MODELLED

Seven tonal steps; right mass and lower grey band show grain and streaking; dark interiors modestly modulated (0.053); upper-left grey wedge stays fairly uniform.

WEAKEST Pale grey wash upper left is flat inside

STRONGEST Right mass, grainy mottled greys with dark streaks

Layering · LEGIBLE

Pale grey washes, mid grey sweeps and black strokes sit as distinct passes on left; on the right the overlaps go cloudy and order is harder to read.

WEAKEST Right mass passes blur into mottled texture

STRONGEST Black stroke over translucent grey band, left-centre

Composition · WORKING

Strong left-to-right rising movement with shaped empty paper top left; right half is a dense, undifferentiated grey block covering most of the sheet.

WEAKEST Right half crowded, mottled field without focus

STRONGEST Rising diagonal sweep from lower left to upper right

Material and surface · FLAWED

Right grey mass shows blotchy cloudy mottling and pale tide-line edges visible in colour view; ringed drops top centre; spatter streaks controlled.

WEAKEST Cloudy mottled wash with tide edges, right mass

STRONGEST Dry-brush spatter streaks across right side

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, 15 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, OTHER“Ringed ink drops near top centre”4 × TIDE LINE“Pale hard edges in grey wash, upper right and…”6 × BLOOM, TIDE LINE, WATER STAIN · MAJOR“Cloudy mottled patches inside right grey mass”WATER STAINBLOOMRINGTIDE LINEOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 9 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 16 edge segments, 25% crisp, 50% soft or bloomed, 25% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6H7H8H9

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

2026.03.27, day 89 of the Crucible Year, one of 10 paintings from that date (6 shown). 70 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: P1 Warm-up (working title).

Made after one of the busiest fortnights of the previous two months: 70 works in the fourteen days before.
THE YEAR

T_149 among all 402

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

Every painting from 2026.03.27 · 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 MB1
Kuretake Shogei Kiwami, Kuretake
Ink MB2
Yi De Ge Zhonghua, Yi De Ge (Beijing)
Ink MB3
Boku-Undo Bokkou, Boku-Undo
The sheet of paper was made 3781 days before this painting.
When each paper was in use