Crucible Year Peter Yuill
Large black ring cropped by the frame, around a pale vertical strip and oval opening, with grey rectangles and a small blue patch. T_406, tone-stretched: what the model was shownT_406: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_406

The engine's reading

A black ring cropped by the paper's edges, closing around a pale throat, a stack of grey panels and a small smear of blue.

Record
Date
2026.10.29
Dimensions
97 × 180 cm
Rating
6.2
Paper
Red Star Mo She Imitation Antique Chu Bark, Exhibition Edition, half-raw
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_406Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

That blue is the pilot light. I know the hour it belongs to, when you come down for water because the other side of the bed has gone heavy and you have lost the argument about the blanket. The house is all furniture at that hour. You navigate by knee. You stand at the stove in somebody's shirt, and the smell of gas is faint, probably nothing, and you think about checking, and you think about the person upstairs breathing with their whole back. I lived a year in that kitchen. I was fond of it. The tap drips into yesterday's pot, the little flame keeps its cold opinion, and a strip of light from the hall lies along the floor, pointing at the stairs.

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
cropped ring of concentric arc bands around central grey blocks and a vertical seam
Movement
circular sweep over the top; squared blocks and vertical seam run against it
Coverage
ink on about nine tenths of the paper
Tone
two tonal steps, weighted dark
Layering
three kinds: grey washes, dense black, small blue; readable at centre and upper right
Edges
crisp on arc walls and central blocks; soft around the blue; broken at outer rim
Feibai
none
Open paper
pale seam widening into a rounded throat at lower centre; both upper corners bare
Colour
blue, small patch at lower centre left, against the left black
Chance marks
creases across left black; cloudy bloom around blue; rings in central greys; spatter upper left
Frame
ink runs off left, bottom and right, touches top; upper corners stay open

A great black ring swings over the paper, cropped at left, right and bottom, and drops the eye down a pale seam into a rounded throat at lower centre. The sweep is the best idea on the sheet.

The rim at upper right is where the brush is most alive. Narrow bands follow its curved travel, band over band, and one begins in a dry rake of hairs before closing to clean black. Half-raw paper keeps those walls crisp and lets each grey sit on the last without sinking. The translucent panels around the seam stay just as legible, if stiffer.

Then the black takes over. The masses at left and lower right read as filled, their passes closing into a near-uniform dark that only creases interrupt. The lower-left slab ends in a blunt wedge. Against it a cloudy grey smear has dissolved around the blue. The blue itself is a clean, cold note. The murk beside it is an accident, and it shows at viewing distance.

So: a good ring, a well-made rim, and a great deal of weight. It sits in the middle of this archive, competent and unresolved.

Read and measured

The rating

THE RATING

T_406, rated 6.2

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 HALF21.5V23's rating, 4.3, × 5
+
MEASURED HALF40.4twelve tests, of 50
→
RATING6.261.9 ÷ 10
THE READ HALF, V23
Form
2.0 · built
Tonal depth
1.0 · thin
Layering
2.0 · legible
Composition
2.0 · working
Material and surface
1.1 · flawed
THE MEASURED HALF, V24
Mass
10.0 of 10
Tone
9.2 of 14
Void
3.2 of 8
Flow
10.0 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 WIDTH281 mm

The width of the ink mask along its medial axis.

DEPTH OF THE DARKS1.65

Optical density at the 75th percentile of the sheet.

LARGEST VOID109 mm

The radius of the largest circle of open paper.

DIRECTIONS0.10

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 FILE3.77

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

Read by the Visual Analysis Engine, version 23.12, on 2026.11.02: measured by code, then read 9 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_406T_406, tone-stretchedT_406, classed by brightness
89%of the sheet carries ink
Black 79%Grey 19% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

2 families 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: 0.042 (under 0.045 reads as flat).

0.300.7512 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 5READ 6READ 7READ 8READ 9MEAN
Form2BUILT2BUILT2BUILT2BUILT2BUILT2BUILT2BUILT2BUILT2BUILT2.0
Tonal depth1THIN1THIN1THIN1THIN1THIN1THIN1THIN1THIN1THIN1.0
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface1FLAWED2SOUND1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.1

READ 1, IN ITS OWN WORDS

“Shares R3's concentric arc structure but is far heavier and flatter: massive near-uniform darks, layering legible mainly in centre and upper right, a strong sweep around the void, and a cloudy patch beside the lower-left mass.”

Form · BUILT

Arcs hold as coherent, curved forms with firm walls, especially upper right; the huge top and left masses read as bulky filled slabs, and central rectangles are stiff.

WEAKEST Bulky lower-left dark slab with a blunt, wedge-like end

STRONGEST Upper-right concentric arc bands following the brush's curved travel

Tonal depth · THIN

Dark modulation measures flat at 0.042; top, left and lower-right masses read near-uniform in colour. Stretched view shows only faint stepping. Greys are confined to centre and upper right.

WEAKEST Near-uniform interior of the large lower-right black mass

STRONGEST Stepped translucent greys in the central passage and upper-right bands

Layering · LEGIBLE

Overlapping passes read clearly in the centre and upper-right bands, with blue as a distinct small pass; in the main darks later passes largely bury the sequence.

WEAKEST Overlaps within the dark masses merge into near-solid black

STRONGEST Translucent stacked rectangles and arcs in the central passage

Composition · WORKING

Arc sweep carries the eye from left over the top to right around a shaped pale core; 89% coverage leaves little open paper and the bottom corners sit as dead weight.

WEAKEST Heavy lower-left and lower-right darks crowd the sheet

STRONGEST Great arc sweeping around the pale central void

Material and surface · FLAWED

Smoky, cloudy patch beside the left dark mass at lower centre is visible in colour, with small ring marks above it; crease lines cross the left mass. Ink elsewhere is controlled.

WEAKEST Cloudy smudged wash against the lower-left dark mass, around the blue

STRONGEST Dry-brush start and clean edges of the upper-right bands

FLAWS

7 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 7 distinct places, 37 mentions in all across 9 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 × OTHER“Stray dark specks on bare paper at upper left”9 × OTHER“Small pale scratch-like marks at lower edge o…”7 × OTHER“Crease lines crossing the left dark mass”4 × RING, WATER STAIN · MAJOR“Small ring-like marks inside the central grey…”1 × OTHER“Crease lines in the right-hand black mass nea…”3 × OTHER“Crease lines crossing the lower-left black ma…”8 × BLOOM, WATER STAIN, MUD · MAJOR“Cloudy, smoky grey patch around the blue, aga…”WATER STAINBLOOMRINGMUDOTHERMAJOR

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

Date

2026.10.29, day 305 of the Crucible Year, one of 6 paintings from that date. 19 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 2026.10.29 is on this site. 5 other dates with more than five works are shown in full.
THE YEAR

T_406 among all 419

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

Every painting from 2026.10.29 · 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 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 288 days before this painting.
When each paper was in use