Crucible Year Peter Yuill
A black spiral with serrated grey rim circles a small white eye at left; a huge black mass fills the right. T_385, tone-stretched: what the model was shownT_385: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_385

The engine's reading

A stepped ink spiral wheels around a small white eye at left, pressed against a black mass that fills the right of the long sheet.

Record
Date
2026.10.16
Dimensions
97 × 180 cm
Rating
5.7
Paper
Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper, self-sized
Ink
Yi De Ge Yun Tou Yan, Boku-Undo Gentoku Super Concentrated, Yi De Ge Pine Soot Ink, Shisan Yue Calligraphy and Painting Ink
Enquire about T_385Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

A serpent coils round the last bright thing in the country, and a giant comes down from the east to sit on the country until it is handed over. In the version I was told, the giant wins by never getting up. He brings no sword and no song, and he will not bargain, because he has never needed to. He sits. Harvests fail politely. The serpent tightens, one scale at a time, round a white pebble the size of a child's tooth, and offers him everything else: the river, the sons, the names of the dead. I like the serpent. I would back the giant. At dusk his knee is against the door of the last house, and the pebble is still warm.

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 V23's reads, from the settled findings, and checked by hand before approval. It explains V23's numbers and may not change them.

Structure
stepped spiral at left, filled black block at right, joined below the white eye
Movement
rotation around the eye; right mass's outer arcs swing with it, its interior undirected
Coverage
ink on about nine tenths of the paper
Tone
one tonal step, weighted dark
Layering
translucent grey steps and dark covering passes; readable only at the outer margins
Edges
crisp steps at outer rims and block margins; broken feathering around the spiral's inner edges
Feibai
present, at the spiral's inner right arcs and lower left sweep
Open paper
upper left field narrowing to an S-shaped channel, ending in the small eye
Chance marks
no rings; paper crinkle through right mass; cloudy patch low in it; specks top left
Frame
ink runs off left, right, bottom, upper right; upper left and lower left corner open

Two dark masses crowd a long sheet, with a strip of white paper running between them. It falls from the top edge, narrows into an S and curls into a small bright eye left of centre. A spiral wheels out from that eye across the left side. A black block takes the rest.

The spiral is where looking pays. Its outer rim climbs in saw-toothed steps, grey passes overlapping, and the alum-sized paper keeps those translucent edges apart, so the order of strokes can be read. Toward the eye the brush dries and the arcs feather into bare paper, crisp and quick.

The block gets none of that. Later passes bury earlier ones until the right half closes into one sealed black, varied only by paper crinkle and a faint cloudy patch low down. Its top left corner is stiff, and only its stepped lower edge still moves.

The result is a good spiral beside too much black. The white channel and the left wheel reward a long look; the slab takes most of the paper and gives little back. A competent sheet, typical of its run.

Read and measured

The rating

THE RATING

T_385, rated 5.7

The combined score, out of 10: V23's reading of the photograph as the read half and V24's twelve tests on the 16-bit file as the measured half, added and divided by 10. The scale is relative to this archive. How each half is made is on the Method page.

READ HALF22.5V23's rating, 4.5, × 5
+
MEASURED HALF34.8twelve tests, of 50
→
RATING5.757.3 ÷ 10
THE READ HALF, V23
Form
2.0 · built
Tonal depth
1.0 · thin
Layering
1.4 · single
Composition
2.0 · working
Material and surface
2.0 · sound
THE MEASURED HALF, V24
Mass
7.0 of 10
Tone
10.2 of 14
Void
6.4 of 8
Flow
6.4 of 10
Balance
4.8 of 8
Measured

How it was measured

FROM THE 16-BIT FILE

What V24 measured.

Plain physical facts with no model involved. Across the year they track how the practice changes. On one sheet they cannot say whether a mark is any good. Millimetres read a few percent high, because the photographs are cropped just inside the paper's edge.

MASS WIDTH209 mm

The width of the ink mask along its medial axis.

DEPTH OF THE DARKS1.98

Optical density at the 75th percentile of the sheet.

LARGEST VOID133 mm

The radius of the largest circle of open paper.

DIRECTIONS0.17

How far the marks align across the sheet. Lower means they run several ways.

BALANCE0.65

Left and right asymmetry of the ink. Lower is more even.

THE FILE4.33

Pixels to the millimetre in the TIFF these were measured from, with the studio light removed.

Read by the Visual Analysis Engine, version 23.8, on 2026.10.16: 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_385T_385, tone-stretchedT_385, classed by brightness
91%of the sheet carries ink
Black 80%Grey 18% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

1 family of tone.

Every inked pixel's brightness in 64 bins, smoothed; each circled peak holds at least 4% of the ink. Two or fewer: Tonal depth is held at the bottom rung whatever the model reads. A dense sheet of many translucent passes can count low here, so Layering is left to the reads. Life inside the black: 0.054 (under 0.045 reads as flat).

0.300.751 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 depth1THIN1THIN1THIN1THIN1THIN1.0
Layering1SINGLE1SINGLE2LEGIBLE2LEGIBLE1SINGLE1.4
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“The vortex idea echoes R3, but the sheet is overfilled. A dominant flat black right half, one tone family and buried passes keep it ordinary. The left spiral's stepped strokes and the white channel are its best parts.”

Form · BUILT

Left spiral is built from curved stepped strokes that hold their walls; the right half fuses into one heavy filled block with little stroke shape.

WEAKEST Right dark mass, a bulky filled slab

STRONGEST Left spiral's stepped arcing strokes following brush travel

Tonal depth · THIN

Only one tonal step measured; modulation 0.054 barely above flat. The right mass reads as uniform black in colour view, with only faint variation when stretched.

WEAKEST Right-half black mass, near-uniform interior

STRONGEST Left spiral's arc banding toward its core

Layering · SINGLE

Pass edges show only at the spiral rims, top left and bottom right; inside, dark passes cover each other into a single dark family.

WEAKEST Right mass where later passes bury earlier

STRONGEST Stepped grey edges of left spiral's outer rim

Composition · WORKING

The white channel from top centre to the spiral eye gives movement and shape. With 91% coverage, though, the right half is a heavy dead block.

WEAKEST Crowded, dead right half filling the frame

STRONGEST White S-channel spiralling into the vortex eye

Material and surface · SOUND

The ink is controlled and there are no tide lines or rings. Paper wrinkling shows in the stretched view across the right mass, and there is slight cloudiness in the lower right.

WEAKEST Paper crinkle texture across right dark mass

STRONGEST Dry-brush feathering at the spiral's inner edges

FLAWS

4 distinct places, 0 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 4 distinct places, 10 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.

1 × DEAD INK“flat uniform black interior of right mass”5 × OTHER, DEAD INK“paper crinkle/wrinkle texture visible inside …”2 × OVERWORK, WATER STAIN“repeated passes fused to uniform black, lower…”2 × WATER STAIN“slightly cloudy paler patch in lower part of …”WATER STAINDEAD INKOVERWORKOTHER

V23's rules and arithmetic, and every figure under its own name, are in the Archive record.

Date

2026.10.16, day 292 of the Crucible Year, one of 12 paintings from that date. 0 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: P4 S14 (working title).

Every painting from 2026.10.16 is on this site. 5 other dates with more than five works are shown in full.
THE YEAR

T_385 among all 419

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

Every painting from 2026.10.16 · This date in the year

Materials

Paper
Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper, self-sized, China Xuan Paper Co., Ltd., made 2026.04.08
Ink MB6
Yi De Ge Yun Tou Yan, Yi De Ge (Beijing)
Ink MB8
Boku-Undo Gentoku Super Concentrated, Boku-Undo
Ink MB9
Yi De Ge Pine Soot Ink, Yi De Ge (Beijing)
Ink MB10
Shisan Yue Calligraphy and Painting Ink, Shisan Yue (Thirteenth Month)
The first painting made with this set of inks (MB6, MB8, MB9, MB10).
When each paper was in use