Crucible Year Peter Yuill
A thick black horizontal band crosses grey rectangular washes on pale paper, with a ragged dark sweep at lower left and scattered spatter. T_179, tone-stretched: what the model was shownT_179: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_179

The engine's reading

A black band dragged left to right across stacked grey rectangles, its frayed entry streaked with bare paper, a dark sweep curling up from below.

Record
Date
2026.04.05
Dimensions
97 × 180 cm
Paper
Red Star Mo She Imitation Antique Chu Bark, Exhibition Edition, half-raw
Ink
Kuretake Shogei Kiwami, Yi De Ge Zhonghua, Boku-Undo Bokkou
Enquire about T_179Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Road cuts show rock striped like this: grey, grey, then one black seam so thick it looks as if the planet stopped speaking for a while. The left end of this band is the part I would take a hammer to, the frayed edge where sediment was still arriving in streaks and the sea had not decided yet. The right end is the long quiet after. I do not hold the quiet against it. Most of the earth is quiet, stacked. The spatter up top is small meteorites landing on a sea floor that will not be a mountain for another age, and over all of it the pale paper sky, with a few dark stars still cooling.

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
long black horizontal band over stacked grey rectangles; dark sweep beneath at lower left
Movement
left to right along the band; lower-left sweep curls back against it
Coverage
ink on about two thirds of the paper
Tone
five tonal steps, weighted dark
Layering
three kinds of pass: pale grey, mid-grey blocks, black; readable top and right
Edges
crisp walls on band and grey blocks; frayed at band's left entry and lower-left sweep
Feibai
present at the black band's left entry
Open paper
broad strip along the bottom, widest at lower right; thin margin along top
Chance marks
spatter top right and lower right; tide lines in upper greys; milky cap at band's right end
Frame
lower-left sweep nears the left edge; greys near the right; top and bottom open

A single black band crosses the sheet from left to right, laid over a stack of grey rectangles and pushed from below by a ragged dark sweep at the lower left. The eye arrives at the band's left end and travels with it. That entry is where the painting lives.

There the brush moves fast on an uneven load. The hairs part into long parallel streaks of bare paper, grain shows through the black, and the half-sized bark paper keeps each streak crisp at its edge. Above, the grey blocks sit like panes of smoked glass, every pass still legible because this paper holds layers apart. The lower-left sweep turns back against the band and gives the sheet its one counter-current.

Then the band stops travelling. Its right half thickens into a dense, nearly uniform slab and ends square and stiff under a milky cap. It buries the greys instead of building on them. Pale tide lines cut through the upper washes, and the lower right is leftover paper.

So the sheet opens well and then sits down. The entry and the sweep reward a close look; the right half is weight without event. It holds together and reads clearly, a good start the rest of the stroke never matches.

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_179T_179, tone-stretchedT_179, classed by brightness
70%of the sheet carries ink
Black 46%Grey 41%Light 14% 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: 0.057 (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 surface1FLAWED1FLAWED2SOUND1FLAWED1FLAWED1.2

READ 1, IN ITS OWN WORDS

“A bold horizontal black band over grey washes. The dry-brush left end is lively, but the right is a stiff, flat slab. The layering can be read, but tide lines in the grey washes beside the band mar the surface.”

Form · BUILT

The horizontal black band holds its walls and its left end shows brush travel, but the right two-thirds is a bulky rectangular slab. The lower-left sweeps are looser.

WEAKEST Main black band: stiff, slab-like right end

STRONGEST Dry-brush left entry of the horizontal band

Tonal depth · MODELLED

The left band carries streaks and grain (modulation 0.057). The grey washes are grainy, but the right half of the black band reads largely flat.

WEAKEST Right half of black band, near-uniform dark

STRONGEST Streaked dry-brush grain in left band

Layering · LEGIBLE

Grey wash blocks sit under the black band and lower sweeps, and their edges stay legible. There are about three passes, but the black largely covers what is under it rather than building depth.

WEAKEST Black band simply covers grey washes beneath

STRONGEST Translucent grey rectangles behind band, top centre

Composition · WORKING

A strong horizontal thrust from left to right, with the lower-left sweep giving counter-movement. The empty paper is shaped top and bottom, but the band sits static and centred.

WEAKEST Static horizontal band dominating centre

STRONGEST Lower-left diagonal sweep countering the band

Material and surface · FLAWED

Pale water lines and hard tide edges run through the grey washes above and right of the black band, visible in the colour view. Stray drops and a pale fringe sit at the band's right end.

WEAKEST Tide-lined grey washes above band, top right

STRONGEST Dry-brush texture at band's left end

FLAWS

6 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 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.

3 × TIDE LINE, WATER STAIN“pale seams and hard edges inside the upper gr…”7 × TIDE LINE, OTHER · MAJOR“pale water lines between grey wash blocks abo…”1 × OTHER“crease/scratch lines across the black band”3 × TIDE LINE, WATER STAIN, BLOOM“pale halo at right end of black band”1 × MUD“cloudy fused grey in lower-left sweep”WHOLE SHEET · 3 × OTHERWATER STAINBLOOMTIDE LINEMUDOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 5 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 14 edge segments, 21% crisp, 50% soft or bloomed, 29% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5

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

2026.04.05, day 98 of the Crucible Year, one of 10 paintings from that date (1 shown). 46 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).

THE YEAR

T_179 among all 402

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

Every painting from 2026.04.05 · 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 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 81 days before this painting.
When each paper was in use