Crucible Year Peter Yuill
Large dark concentric arcs at right around a small white arch; at left, a dark block, a grey column and a spattered blot. T_321, tone-stretched: what the model was shownT_321: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_321

The engine's reading

A wheel of dry-brushed ink bands curls around a small white arch at right, facing three blunt marks and a spray of spatter across open paper.

Record
Date
2026.05.31
Dimensions
97 × 180 cm
Paper
Red Star Mo She Special Effect Xieyi Edition, raw
Ink
Yi De Ge Refined Ink Juice, Boku-Undo Genso, Yi De Ge Yun Tou Yan
Enquire about T_321Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

The white arch under the great curve is the underside of a bridge, and I know who lives under a bridge. Asbjørnsen and Moe wrote him down in Norway: a troll with eyes as big as saucers, listening for the trip, trap of hooves overhead. On the left the goats are sorting out the order. The little one is that spattered knot, all bristle and nerves. The middle one stands square and dark and says nothing. The biggest is the grey one in front, freckled, patient, who has read the story. Black drops have come up over the parapet at the top of the arch, which is the troll looking. Past the bridge is the hillside where, the tale says, they got so fat they could scarcely walk home.

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
concentric arc mass at right; three separate marks at left, unjoined
Movement
arcs sweep round the opening and face left; left marks stand upright against them
Coverage
ink on about three fifths of the paper
Tone
three tonal steps, spread across the range
Layering
translucent grey passes under dark ones; readable in the arcs only
Edges
crisp brushed ends on the arcs; soft bleeding at far left; feathered grey column
Feibai
present in the upper arc band and along the outer arcs' left side
Open paper
small white arch inside the wheel; wide open upper left and centre
Chance marks
spatter and ringed drops at left; grey bloom below slab; pale stain at arcs' edge
Frame
ink runs off the right and bottom edges; top and left stay open

A great wheel of brushed bands rises from the bottom edge at right and leaves the side of the sheet, curled around a small white arch. Across open paper, three blunt marks and a spray of spatter stand facing it.

The wheel is where the sheet lives. Raw bark paper gripped the drying brush so hard that each sweep combed grain along its curve, with streaks of bare paper flying through the upper band. Pale grey passes stay visible under darker ones, so the order of making reads from the rim in to the black ring around the opening.

The left side does not answer. The slab at left-centre is a stiff rectangle, nearly even inside. The grey column and the far-left knot are single passes with nothing beneath. This paper drinks fast, and loaded strokes spread and flatten. They sit as islands in leftover paper. Fine creases cross the arc darks, and the wheel absorbs them.

Where that leaves it: good, reliable work, with one passage of real quality and a left side that keeps the whole from rising to meet it.

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_321T_321, tone-stretchedT_321, classed by brightness
62%of the sheet carries ink
Black 43%Grey 43%Light 14% 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: 0.062 (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 3 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 depth2MODELLED3DEEP2MODELLED2MODELLED2MODELLED2.2
Layering3ORDERED2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.2
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A strong layered arc on the right echoes R3. It is weakened by stiff, scattered marks on the left, a flat dark block, minor creases and a cloudy patch beside the arc.”

Form · BUILT

Right arcs follow the brush's travel fluently. Left-centre dark block is a blunt slab, and the far-left splash knot is lumpy; the walls hold but some marks are stiff.

WEAKEST Stiff dark rectangular slab, left-centre

STRONGEST Concentric arc bands sweeping around the right opening

Tonal depth · MODELLED

Arc interiors show banding, grain and graded density, with modulation 0.062. The dark rectangle and left knot have little internal variation, and tonal steps are only 3.

WEAKEST Dark left-centre block nearly flat inside

STRONGEST Arc bands with dry-brush grain and stepped greys

Layering · ORDERED

Successive arcs overlap translucently. Grey outer bands sit under the darker inner and top-right passes, so the order can be read and builds depth across the right half.

WEAKEST Left marks are essentially single passes

STRONGEST Overlapping translucent arc passes in the right mass

Composition · WORKING

The arc mass commands the right and leads inward. The left blocks and spatter feel scattered and weakly tied to it, and the upper-left paper reads partly as leftover.

WEAKEST Scattered left cluster and empty top-left paper

STRONGEST Arc spiral drawing the eye to the white opening

Material and surface · SOUND

Dry-brush grain is well used in the arcs. Fine crease or crack lines cross the dark arcs, and a pale grey cloudy patch sits at the arc's left edge, mid-height.

WEAKEST Crease lines and pale cloud beside arc

STRONGEST Dry-brush grain in the arc bands

FLAWS

5 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 5 distinct places, 13 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 × RING“ringed drops beside the grey spattered column”3 × WATER STAIN, BLOOM“faint brownish discolouration along the far l…”1 × WATER STAIN“pale grey cloudy patch at the left edge of th…”5 × OTHER“crease/crack lines running across the arc ban…”3 × BLOOM“mottled grey blot below the dark block”WATER STAINBLOOMRINGOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 6 principal ink masses traced (cyan), 2 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 25 edge segments, 52% crisp, 12% soft or bloomed, 36% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2

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

2026.05.31, day 154 of the Crucible Year, one of 8 paintings from that date (6 shown). 10 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).

Made after a calmer fortnight than 14 of the 14 dates before it.
THE YEAR

T_321 among all 402

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

Every painting from 2026.05.31 · This date in the year

Materials

Paper
Red Star Mo She Special Effect Xieyi Edition, raw, China Xuan Paper Co., Ltd., made 2025.12.08
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 174 days before this painting.
When each paper was in use