Crucible Year Peter Yuill
Grey and violet blocks fan in an arch around a pale central gap with dark spatter; large black masses fill both lower corners. T_410, tone-stretched: what the model was shownT_410: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_410

The engine's reading

A fan of translucent grey and violet blocks arches above two black masses, closing on a pale gap of paper spattered with dark drops.

Record
Date
2026.11.03
Dimensions
97 × 180 cm
Rating
5.8
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, colour inks
Enquire about T_410Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Two black hills stand either side of the white road, and the villagers will tell you they are one dragon, asleep, with the road running through the place it was cut in half. The butchers of that country sell a drop of its blood for a fever, and you can see where they have been: dark beads on the snow, about where a knife would rest. I bought one. It did nothing for the fever. Up on the ridges violet fans keep opening and closing, which the priests call breath and the shepherds call heather. I slept in the pass one night with my back to the eastern half. Near dawn it moved, about the width of a thumbnail, toward the other.

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
overlapping rectangular blocks in a radial fan, black masses at the base, pale arc above
Movement
blades converge downward on the central gap; top arcs sweep across them
Coverage
ink on about nine tenths of the paper
Tone
six tonal steps, weighted dark
Layering
violet, dry arcs, translucent greys, blacks; readable across the upper fan, buried below
Edges
crisp on upper block ends; soft along the black masses; broken in central streaks
Feibai
present in the central streaks above the gap and along the upper arc
Open paper
tapering pale wedge at bottom centre, with a thin band along the top
Colour
violet bands at upper left, upper centre, centre and right edge
Chance marks
spatter in the central gap and upper right; small rings upper left and upper right
Frame
ink runs off left, right and most of bottom; top and bottom centre stay open

A great fan of brushed blocks swings around a pale gap at the bottom centre, its blades rising to a thin arc under the top edge. The eye slides down them into the gap, where dark spatter lands on bare paper. The shape reads at once.

The painting happens in the upper fan. Violet bands lie under translucent greys at upper left and centre, and the half-sized paper slows each pass enough for the next to settle on it without drowning it. The greys descend in real steps. Through the middle, dry streaks break over the paper and let its grain into the violet.

The bottom corners undo much of this. A black mass sits in each, filled rather than travelled, and together they bury the sequence so legible above. The left one has a lumpy stepped shoulder and almost no life inside beyond the crinkle of the paper. The right one carries a long crack and a pale scrape, both plain against the black. A cloudy green patch muddies the upper left.

Upper fan and lower weight never become one painting. It is a middling sheet with a clear shape and some real passages, worth a look for the violet under the grey.

Read and measured

The rating

THE RATING

T_410, rated 5.8

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 HALF26.5V23's rating, 5.3, × 5
+
MEASURED HALF31.0twelve tests, of 50
→
RATING5.857.5 ÷ 10
THE READ HALF, V23
Form
2.0 · built
Tonal depth
2.0 · modelled
Layering
2.4 · legible
Composition
2.0 · working
Material and surface
1.0 · flawed
THE MEASURED HALF, V24
Mass
4.8 of 10
Tone
10.6 of 14
Void
4.8 of 8
Flow
2.8 of 10
Balance
8.0 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 WIDTH118 mm

The width of the ink mask along its medial axis.

DEPTH OF THE DARKS1.81

Optical density at the 75th percentile of the sheet.

LARGEST VOID166 mm

The radius of the largest circle of open paper.

DIRECTIONS0.44

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

BALANCE0.33

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

THE FILE3.89

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

Read by the Visual Analysis Engine, version 23.13, on 2026.11.03: 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_410T_410, tone-stretchedT_410, classed by brightness
89%of the sheet carries ink
Black 55%Grey 36%Light 8% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

6 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: 0.063 (under 0.045 reads as flat).

0.300.75123456 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
Layering2LEGIBLE3ORDERED2LEGIBLE3ORDERED2LEGIBLE2.4
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.0

READ 1, IN ITS OWN WORDS

“Layered radial fan around a pale central void, with legible violet and grey passes above; bulky, flat-leaning black masses dominate below, and a crack and scrape damage the right mass.”

Form · BUILT

Radial blocks and arcs hold coherent walls, but both lower black masses are heavy slabs, filled rather than travelled, with a clumsy step at the left mass's top edge.

WEAKEST Bulky lower-left black mass with a clumsy stepped shoulder

STRONGEST Upper-left arc band following the fan's sweep

Tonal depth · MODELLED

Upper blocks and dry-brush give a real grey range; right black mass shows mottling, but the lower-left black reads flat in colour, its stretched texture mostly paper relief.

WEAKEST Lower-left black mass, near-flat apart from paper crinkle

STRONGEST Stepped greys of the central and upper fan blocks

Layering · LEGIBLE

Violet, grey blocks and dry-brush stay legible across the upper fan, but the two black masses bury the sequence below and a murky greenish overlap clouds the upper left.

WEAKEST Lower black masses simply cover the earlier passes

STRONGEST Violet bands under translucent grey blocks, upper left and centre

Composition · WORKING

The arch and shaped central void direct the eye downward through the sheet, but near-symmetrical black masses sit static and bottom-heavy, crowding the lower corners.

WEAKEST Two heavy black masses weigh down the bottom corners

STRONGEST Fan converging on the pale central opening with spatter

Material and surface · FLAWED

A dark vertical crease and a white-flecked scrape sit in the right black mass, visible in colour; a cloudy greenish patch muddies the upper-left block. Centre dry-brush is controlled.

WEAKEST Crack and abrasion inside the right black mass

STRONGEST Dry-brush streaks breaking over paper in the centre

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, 22 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“Small ringed drop at top of the upper-left gr…”5 × MUD, BLOOM, WATER STAIN“Cloudy greenish-dark patch inside the upper-l…”7 × OTHER, BLOOM · MAJOR“White-flecked scrape or abrasion across middl…”1 × OTHER“Hard creases across the bottom-left black mas…”4 × OTHER · MAJOR“Dark vertical crack or crease line in lower p…”WATER STAINBLOOMRINGMUDOTHERMAJOR

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

Date

2026.11.03, day 310 of the Crucible Year, one of 11 paintings from that date. 13 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 2026.11.03 is on this site. 6 other dates with more than five works are shown in full.
THE YEAR

T_410 among all 419

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

Every painting from 2026.11.03 · 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)
Colour
colour inks, recorded together
The sheet of paper was made 209 days before this painting.
When each paper was in use