Crucible Year Peter Yuill
Grey and black brush arcs curl from lower left over the top around an empty pale centre, ending in a dark splash with drips at right. T_320, tone-stretched: what the model was shownT_320: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_320

The engine's reading

Black and grey arcs swing from the lower left over the top of a long sheet, circling bare paper and breaking into splash and drips at the right.

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_320Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

A handful of dots hang near the right edge, small and round, keeping their distance. I have decided they are the escort. Behind them the big ship came in hot, curling its hull around a bay of nothing and venting coolant sideways out of the stern in long pale threads. The escort keeps radio silence. They are waiting for a docking signal, and it is late. The colony will call this the night they got their harbour: a ring of black metal around still white water, and those few lights off the starboard side, blinking patiently, too polite to come any closer.

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 nested arcs at left, grey wedge and black band joined across the top
Movement
clockwise sweep from lower left over the top; horizontal drips at right cut across it
Coverage
ink on about three fifths of the paper
Tone
five tonal steps, weighted to the middle greys
Layering
grey washes under black arcs; readable at left and top centre, lost at right
Edges
crisp on the dark arcs; soft and feathered through the right splash
Feibai
lower end of the inner dark arc, bottom left
Open paper
a rounded field at centre and lower centre, enclosed by the arcs
Chance marks
stray drops near top right; tide-edged drips at lower right; cloudy patches in grey wedge
Frame
ink runs off the left, top and lower left edges; the right edge stays open

The sheet turns like a wheel caught mid-spin. Arcs rise from the lower left, swing over the top and pitch down into a burst of splash on the right, and the whole motion closes around a round field of bare paper that it holds firmly in place.

The inner dark arc at left is the best passage. Its black lies over a broad grey band and stays separate, so the order of passes reads at a glance. At its lower end the bristles part into flying white. The paper is raw bark, quick to drink and rough enough to catch a dry brush, so each hair leaves its own track. Across the top, the black band over the grey wedge repeats that clarity with more weight.

The costs sit in the middle and on the right. The grey wedge ends in a squared slab, and its inside is cloudy and almost even. On the right, wet ink spread fast through the paper and ran in horizontal drips with pale tide edges. Those drips crowd the ending and blur which pass came first.

These are real faults, and they stay local. The spiral and its shaped centre carry the sheet. It is a big, sure painting with a muddied finish, and it belongs with the stronger work in the archive.

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_320T_320, tone-stretchedT_320, classed by brightness
60%of the sheet carries ink
Black 33%Grey 52%Light 15% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

5 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: 0.054 (under 0.045 reads as flat).

0.300.7512345 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 2 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 depth2MODELLED2MODELLED3DEEP2MODELLED2MODELLED2.2
Layering2LEGIBLE2LEGIBLE3ORDERED2LEGIBLE2LEGIBLE2.2
Composition3COMMANDING3COMMANDING2WORKING2WORKING2WORKING2.4
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A spiralling composition of nested arcs with a strong sweep and a well-shaped open centre. The grey masses are fairly flat inside, the central wedge is blunt, and the splatter at right is loose. Better than R2 on composition.”

Form · BUILT

Inner dark arc and upper dark band follow the brush's travel; the central grey wedge is a bulky slab with a squared lower end; the right splatter is loose.

WEAKEST Central grey wedge ends in a blunt, filled-in edge

STRONGEST Inner dark arc, left, with dry-brush tail

Tonal depth · MODELLED

Dark arcs show streaking and banding (modulation 0.054); the outer grey band and the central wedge are mostly even mid-grey with little internal grading.

WEAKEST Upper-left grey band, flat and even inside

STRONGEST Upper dark band with streaks and stepped density

Layering · LEGIBLE

Grey wash passes lie under the dark arcs and stay readable; the dark band over the grey wedge is clear; roughly three passes, not a sustained sequence.

WEAKEST Right splatter zone blurs the order of passes

STRONGEST Dark arc laid legibly over the grey band, left

Composition · COMMANDING

Nested arcs carry the eye from lower left, up over the top and out into the splash at right; the open centre paper is strongly shaped.

WEAKEST Busy drip and splatter cluster at right

STRONGEST Spiralling sweep of arcs around the open centre

Material and surface · SOUND

Ink is mostly controlled with good dry-brush edges; the central grey wedge has a slightly milky mottle; stray drops at top right and drips at lower right.

WEAKEST Mottled, cloudy interior of central grey wedge

STRONGEST Dry-brush tail on the inner arc

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, 11 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.

2 × OTHER, WATER STAIN“hairline creases and brownish tint in central…”3 × OTHER“stray isolated ink drops near the top-right e…”1 × TIDE LINE“faint ring lines in outer grey arc”1 × WATER STAIN“mottled cloudy patches inside the central gre…”4 × OTHER, TIDE LINE“running drips trailing from right splatter ma…”WATER STAINTIDE LINEOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 2 principal ink masses traced (cyan), 4 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 19 edge segments, 32% crisp, 32% soft or bloomed, 37% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4

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_320 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