Crucible Year Peter Yuill
Wide ink painting: black block at left, grey sweep along the bottom curving up the right edge around pale empty paper, with scattered drops. T_254, tone-stretched: what the model was shownT_254: every pixel as the measuring code classes it
70 × 180 cm · the whole sheet, uncropped

T_254

The engine's reading

A black slab stands at the left while a grey sweep crosses the bottom and climbs the right edge, cupping a wide oval of bare, speckled paper.

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_254Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Every kitchen keeps one bowl past its time. Wide, heavier on one side from a bad firing, a chip near the base where it met the tap one winter. It holds nothing much: the end of the soup, keys, a lemon going soft. I have washed it late at night while someone slept badly in the next room, and set it upside down on the rack, and it dripped on the tiles all night, small round drops, very patient. It wins no compliments. Everybody reaches for it first. In the morning it is there again, empty, catching the window, the chip turned toward the light.

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 slab at left, grey band along bottom, arc up right edge, one bowl
Movement
left to right along the bottom, then upward; the slab stands upright against it
Coverage
ink on about three quarters of the paper
Tone
five tonal steps, spread across the range
Layering
pale wash, mid grey, black; readable along bottom arc and lower right
Edges
bristle-broken at slab base and right arc; soft in centre greys; tide edges right
Feibai
present in the dark strokes at lower right and the base of the slab
Open paper
large oval, upper centre to upper right, held inside the arc
Chance marks
tailed blot at centre; drops across open paper; tide lines right; white fleck bottom
Frame
ink runs off left, bottom, right and top left; top centre and top right open

A wide bowl of ink runs along the bottom of the sheet and climbs the right edge, and what it holds is the point: a pale oval of paper, upper centre to upper right, flecked with flung drops. At the left, a black slab stands upright against the sweep.

The right arc is the more alive. Its dark strokes break into bristle streaks over a pale grey wash, and both passes stay legible, because raw paper this absorbent takes each layer where it lands and keeps it there. Below, the mid-grey band carries grain and stepped density. Where that wash dried at the right, it left wrinkled tide lines, and the sheet absorbs them easily.

The slab is where it pays. Its top is cut square, its inside is one sealed black broken only by a hairline crack, and it buries the grey laid under it. Packed against the left edge, it stops the movement the arc begins. A tailed blot at centre and a bare white fleck in the bottom band stay small.

That leaves the sheet in the middle of the archive: an arc worth having, an opening of paper worth seeing, and a block that will not move.

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_254T_254, tone-stretchedT_254, classed by brightness
75%of the sheet carries ink
Black 41%Grey 43%Light 16% 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: 0.071 (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, 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

“A broad bowl arc with a heavy black slab at left. The forms and layering work at an ordinary level. The left black is flat inside, and a white hole and cloudy wash edges weaken the surface.”

Form · BUILT

Left black slab is a curved block with a bristle-trailed edge; the right arc follows the brush's travel; the centre grey wash is bulky and loosely bounded.

WEAKEST Bulky grey wash mass, centre-left, ragged and slab-like

STRONGEST Right arc sweep with dry-brush trailing strokes

Tonal depth · MODELLED

Five tonal steps; modulation 0.071. The right arc and centre grey show graded texture, but the left black block reads mostly uniform inside.

WEAKEST Left black slab interior largely flat

STRONGEST Right arc greys with grain and wrinkle texture

Layering · LEGIBLE

Pale wash, mid-grey, and black passes stay distinct; the dark streaks at bottom right sit legibly over grey; the black slab mostly covers what lies beneath it.

WEAKEST Black slab covers earlier grey at left

STRONGEST Grey wash under dark stroke, bottom-centre arc

Composition · WORKING

A large U-shaped arc carries the eye from the left block to the upper right and shapes the empty oval; the left side is heavy and blocky.

WEAKEST Heavy left block crowds left edge

STRONGEST Sweeping bowl arc enclosing open paper

Material and surface · FLAWED

A white void sits in the bottom-centre grey mass; wrinkled, cloudy wash and tide edges in the right arc; a drip blob at centre; a hair-line crack in the left black.

WEAKEST White paper hole/blot in bottom grey wash

STRONGEST Dry-brush bristle edges at lower left

FLAWS

6 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 6 distinct places, 18 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.

1 × OTHER“scattered drops and specks in the open paper”2 × OTHER, WATER STAIN“thin crack lines across the left black slab”5 × WATER STAIN, OTHER“drip blob and puddle at end of centre stroke”1 × TIDE LINE“mottled reticulated tide marks in right grey …”5 × OTHER · MAJOR“white unpainted hole inside bottom grey wash”4 × TIDE LINE, WATER STAIN · MAJOR“wrinkled cloudy wash edges in right arc”WATER STAINTIDE LINEOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 2 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 15 edge segments, 33% crisp, 33% soft or bloomed, 33% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2

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_254 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