Crucible Year Peter Yuill
A broad grey and black brushstroke arcs from lower left over the top to a ragged black end at right, around an open white oval. T_290, tone-stretched: what the model was shownT_290: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_290

The engine's reading

A broad grey and black arc rolls over the top of the paper and breaks into a ragged tail at the right, holding an oval of bare paper.

Record
Date
2026.05.07
Dimensions
97 × 180 cm
Paper
Red Star Mo She Special Effect Xieyi Edition, half-raw (June 2025 batch)
Ink
Yi De Ge Refined Ink Juice, Boku-Undo Genso, Yi De Ge Yun Tou Yan, colour inks
Enquire about T_290Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

The creature sleeps curled round a nest with nothing in it, which in its country is the most valuable thing a nest can hold. Its hide is creased like a riverbed in a drought, every fold a stream gone back to grass. Near the end of it the masons got involved. Someone decided the tail should finish in stairs, cut square, grey stone, very sensible, and the creature allowed it the way old kings allow a new tax. Now its tail ends in a landing. On cold nights travellers climb up and sit there, three steps from the dark, warming their hands on its breath.

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
one broad arc around an open oval; inner end in stepped blocks
Movement
clockwise sweep from lower left over the top; a dry-brush stroke crosses inside
Coverage
ink on about three quarters of the paper
Tone
three tonal steps, spread across the range
Layering
pale, mid-grey and dark passes; readable at left and lower edges
Edges
crisp arc walls; broken dry-brush at the right tail and crossing stroke
Feibai
crossing stroke at the oval's upper edge; dark tail at right
Open paper
tilted white oval at centre; bare paper at right and lower right
Colour
blue spatter near the right edge; one small blue mark at lower left
Chance marks
fold line and wrinkles through top dark band; small brownish stain lower centre
Frame
runs off left and bottom left, touches top centre; right edge open

One arc drives the sheet. It rises from the bottom left, rolls over the top and breaks at the right into a ragged black tail. Inside it sits a tilted oval of white paper.

The left side of the sweep is the more convincing. Pale, mid-grey and darker passes lie in bands there. The half-sized bark paper grips the dry brush and keeps each bristle track as a fine streak. The greys grade, and every layer reads.

The cost sits at the inner end, where the arc stops in stepped grey blocks at centre right, filled rather than drawn. Across the top the dark band is one even slab that seals the greys beneath it. Creases from the crumpled paper cut through it. The arc also crowds the left edge, and the few blue drops at the right are too sparse to hold the empty paper there.

That leaves a solid, sound sheet. The movement is true and the oval is earned. The ending and the flat black keep it below the year's best.

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_290T_290, tone-stretchedT_290, classed by brightness
77%of the sheet carries ink
Black 30%Grey 46%Light 25% 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: 0.041 (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 depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING3COMMANDING3COMMANDING2WORKING2.4
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A fluent large arc with a shaped open centre, but the dark band is flat inside, the passes are few, the terminations are blocky and creases run through the mass. It is an ordinary, working sheet near R2.”

Form · BUILT

Large enso-like arc holds its walls and follows the stroke; the stepped dark/grey terminations near centre-right read stiff and filled in rather than drawn.

WEAKEST Stepped blunt grey block ending the inner arc, lower right

STRONGEST Sweeping outer arc following brush travel left side

Tonal depth · MODELLED

Outer grey bands carry streaks and graded arcs; the main dark band is measured flat (0.041) and reads as an even slab across the top.

WEAKEST Dark inner band interior, top centre, nearly uniform

STRONGEST Outer grey band with streaked dry-brush arcs, left

Layering · LEGIBLE

Outer pale pass, darker inner band, a dry-brush crossing stroke and a dark block at right remain readable; ordering is limited to about three passes.

WEAKEST Dark band partly covers earlier grey passes

STRONGEST Dry-brush grey stroke crossing the open centre

Composition · WORKING

The arc carries the eye round to the dark right terminus and shapes the central void; the lower-right quarter is weak and loosely occupied.

WEAKEST Bottom-right paper feels leftover beside spatters

STRONGEST Circular sweep framing the open white centre

Material and surface · SOUND

Ink controlled with good dry-brush grain at left; wrinkles and a fold line at top centre crease through the dark mass; blue spatters are deliberate colour.

WEAKEST Paper creases cutting across the dark band

STRONGEST Dry-brush streaking in outer grey band

FLAWS

3 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 3 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.

5 × OTHER“Fold/crease line and paper wrinkles through d…”1 × OTHER“Paper wrinkling across the dark band interior”5 × WATER STAIN“Small brownish mark at lower edge of open cen…”WATER STAINOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 3 principal ink masses traced (cyan), 5 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 21 edge segments, 43% crisp, 33% soft or bloomed, 24% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5

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

2026.05.07, day 130 of the Crucible Year, one of 19 paintings from that date (14 shown). 16 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: P2 The Switch (working title).

Made after a calmer fortnight than 16 of the 17 dates before it.
THE YEAR

T_290 among all 402

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

Every painting from 2026.05.07 · This date in the year

Materials

Paper
Red Star Mo She Special Effect Xieyi Edition, half-raw (June 2025 batch), China Xuan Paper Co., Ltd., made 2025.06.07
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)
Colour
colour inks, recorded together
The sheet of paper was made 334 days before this painting.
When each paper was in use