Crucible Year Peter Yuill
Wide grey and black ink painting: radiating fans around a white oval at left, a black ring around another oval at right, dark central block. T_351, tone-stretched: what the model was shownT_351: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_351

The engine's reading

Two white holes torn open at either end of a long grey sheet, ringed by fanning arcs of ink, with a heavy black block wedged between them.

Record
Date
2026.06.14
Dimensions
97 × 180 cm
Paper
Red Star Mo She Imitation Antique Chu Bark, Exhibition Edition, half-raw
Ink
Yi De Ge Refined Ink Juice, Boku-Undo Genso, Yi De Ge Yun Tou Yan
Enquire about T_351Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Two holes in the paper, and a pale road running toward the right one. Late, past the depot, the road goes white under the sodium lamps and the night buses come round it in arcs, one after another, each a little darker than the last. The stops stay empty. The middle of the city is jammed, always, a block of black where somebody parked something enormous and never came back for it. The traffic goes round. I stood on the archive roof and watched the right tunnel swallow the whole night's light without choking once. It just kept turning, black on black, the exit sign still lit.

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
two radial vortices at left and right edges, joined through a dark central slab
Movement
horizontal pull between the vortices; the square central slab sits against the spin
Coverage
ink on about nine tenths of the paper
Tone
three tonal steps, weighted dark
Layering
dilute fans, mid-grey overlaps, dense black; readable at left fan and lower right
Edges
crisp at squared fan ends and slab corners; soft lower left; broken on right ring
Feibai
present in the pale sweeps at lower left, below the left vortex
Open paper
two oval holes at left and right edges, linked by a pale channel
Chance marks
dark specks below the central slab; milky cloudy wash in upper centre; faint creases
Frame
ink runs off all four edges; the left hole opens onto the left edge

Two holes in the paper, one at each end, and everything between them pulled sideways. At the left a small white oval throws fans of grey outward like spokes. At the right a black ring curls round a second hole while dark arcs swing wide above it. The eye crosses and comes back.

The right ring carries the sheet. Its curling passes leave dry grain in the black, so the ring seems to keep turning. The great arc above it holds its banding. The half-raw bark paper keeps each layer where it lands, and at the left vortex that matters most: the stacked fans stay translucent, every pass legible through the next.

The centre is the price. A dark slab sits there square and blunt, flat inside and stiff where it meets its neighbours. Below it the overlaps thicken toward murky grey flecked with dark specks. In the upper middle the greys go milky. Almost no clean paper is left to breathe.

The ends are good enough to hold that weight across the whole width. The middle is a load the vortices carry, and they carry it well: a sheet of real force, won at the edges.

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_351T_351, tone-stretchedT_351, classed by brightness
88%of the sheet carries ink
Black 58%Grey 39% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

3 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: 0.066 (under 0.045 reads as flat).

0.300.75123 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 depth3DEEP2MODELLED3DEEP2MODELLED2MODELLED2.4
Layering3ORDERED3ORDERED3ORDERED3ORDERED3ORDERED3.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“This sheet is in the same radial-arc idiom as R3, with good layering and modelled tone, but it is denser and more crowded. The central slabs are blocky and the negative space is thin, so it falls below R3.”

Form · BUILT

Radial fan strokes and the right ring follow the brush's arc. The central dark slab and the lower-right wedge read as filled blocks with heavy outlines.

WEAKEST Bulky central slab, blocky and stiff at its joins

STRONGEST Right vortex ring arcs following brush travel

Tonal depth · DEEP

Modulation 0.066 and three tonal steps. Arc banding and dry-brush streaks run inside the central and left masses, with a wide range of greys between black and paper.

WEAKEST Top-right black mass dense, only grainy inside

STRONGEST Central slab with banded arcs and stepped greys

Layering · ORDERED

Many translucent arc passes overlap, and their order can be read across both vortices. Overlaps build depth. Some centre-lower overlaps are getting dense.

WEAKEST Centre-bottom overlaps thickening toward murky grey

STRONGEST Translucent stacked fans at left vortex

Composition · WORKING

Two vortex centres at left and right set up a strong horizontal pull. Ink covers 88% of the sheet, so there is little shaped empty paper and the middle is jammed with slabs.

WEAKEST Crowded centre, almost no breathing paper

STRONGEST Paired vortex eyes linked by radiating fans

Material and surface · SOUND

The ink is controlled overall. Faint cloudy patches in the upper-centre greys and small speckled spots in the lower centre are minor and away from the main dark cores.

WEAKEST Cloudy milky greys in upper centre

STRONGEST Dry-brush grain on the right ring

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 × WATER STAIN“faint cloudy mottling in top-left dark arc in…”2 × WATER STAIN“cloudy milky grey wash between the masses in …”2 × MUD, OTHER“dense grey overlaps between the two vortices”5 × OTHER, WATER STAIN“speckled dark specks in grey wash below the c…”WATER STAINMUDOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 2 principal ink masses traced (cyan), 6 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 16 edge segments, 56% crisp, 25% soft or bloomed, 19% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6

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

2026.06.14, day 168 of the Crucible Year, one of 8 paintings from that date (7 shown). 31 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: P3 The Floor Rises (working title).

THE YEAR

T_351 among all 402

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

Every painting from 2026.06.14 · 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 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 151 days before this painting.
When each paper was in use