Crucible Year Peter Yuill
Grey washes at left, a dark wedge centre-left, and a long black curved stroke rising into a dark vertical block at right. T_234, tone-stretched: what the model was shownT_234: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_234

The engine's reading

A long black arc sweeps low across the paper and climbs into a dark upright block, beneath a pale opening and a fan of rising spatter.

Record
Date
2026.04.18
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_234Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Off the right edge of the grey kingdom, past the last black bridge, sits one round drop, alone. On the old maps that is where they wrote nothing. The cartographers argued about it for a century. One school said it was a well. One said it was the eye of something asleep under the paper. The third school said it was a spill, and was exiled, which is how kingdoms handle the plain answer. I walked out there once. It holds still. It reflects no sky. Behind me the bridge was still drying, heavy and very proud of itself, and a small rain of black sparks kept falling upward into the pale gate, where it had never been told not to.

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
grey mass left, dark wedge centre-left, low black arc joining a dark upright block
Movement
left to right along the arc; spatter climbing toward the top runs against it
Coverage
ink on about four fifths of the paper
Tone
six tonal steps, spread across the range
Layering
pale washes, mid-grey planes, black strokes; readable at right and top centre
Edges
crisp on black strokes and upper-left tide lines; soft in left greys; broken at tails
Feibai
along the upper edge of the black arc and in the lower-right grey arcs
Open paper
pale wedge rising from centre to top edge, between wedge and block
Chance marks
blooms upper right; mottled stain in left grey; spatter top centre; drop at right edge
Frame
ink runs off left and bottom-left edges, spatter touches top; right edge stays open

A long black arc runs low across the paper from the middle left, then climbs into a dark upright block at right, and the eye travels with it. Above, a pale opening rises to the top edge, fenced by grey planes and a fan of spatter. The left third is grey weather, heavy and cloudy.

The arc is the sheet's real event. Its travel reads from start to finish: flying white streaks its upper edge, and its end frays into dry tails at lower right. Where it crosses the translucent grey arcs at right, the half-sized paper keeps each pass apart, so the black sits on the grey instead of sinking into it. The block beside it is banded with vertical streaks that give its dark some grain.

The costs are weight. Inside, the arc is near-flat black, dense ink with little left to read. The wedge at centre-left is a blunt slab that drips clumsily at its foot. On the left the greys run together and lose their order, and blooms pock the upper-right wash.

The result is a typical working sheet: one stroke worth following, carried more by its route than its body, inside a room too full of mass.

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_234T_234, tone-stretchedT_234, classed by brightness
81%of the sheet carries ink
Black 36%Grey 50%Light 14% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

6 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: 0.045 (under 0.045 reads as flat).

0.300.75123456 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, one answer.

Each quality placed on its ladder by each read, and the mean the engine keeps.

READ 1READ 2READ 3READ 4READ 5MEAN
Form2BUILT2BUILT2BUILT2BUILT2BUILT2.0
Tonal depth2MODELLED2MODELLED2MODELLED2MODELLED2MODELLED2.0
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface1FLAWED1FLAWED1FLAWED1FLAWED1FLAWED1.0

READ 1, IN ITS OWN WORDS

“A gestural sheet whose curved black sweep shapes the light centre. The blocks are bulky, the dark interiors fairly flat, the left side crowded, and a bloomed grey wash sits against the right dark mass.”

Form · BUILT

Bottom curved stroke follows the brush's travel with a split dry-brush tail. Left dark wedge and right vertical block are bulky and slab-like, with stiff edges.

WEAKEST Blunt slab of the right-centre dark block

STRONGEST Sweeping curved black stroke along the bottom

Tonal depth · MODELLED

Six tonal steps and a good range of greys. Dark interior modulation 0.0454 is barely above flat. The bottom black sweep reads mostly uniform; the blocks show some banding.

WEAKEST Lower curved black stroke interior largely flat

STRONGEST Right dark block with vertical banding

Layering · LEGIBLE

Grey washes sit under the black strokes and still read where they overlap, especially at right-centre. The left grey layers blur together, so the order of passes is less clear.

WEAKEST Left grey washes merge into murky texture

STRONGEST Black sweep over translucent grey arcs at right

Composition · WORKING

The large curve carries the eye from the left mass to the right block around a shaped light centre. The left side is congested with overlapping greys, and the top-right splatter is diffuse.

WEAKEST Crowded, heavy left half

STRONGEST Bowl-shaped curve framing pale central void

Material and surface · FLAWED

The right grey wash beside the principal dark block carries cloudy blooms and dark spots, visible in the colour view. The left grey is mottled, and the paper has a yellowish tint.

WEAKEST Mottled spotted grey wash right of the dark block

STRONGEST Dry-brush split edges on the curved stroke

FLAWS

6 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 6 distinct places, 19 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. A major flaw holds Material and surface at rung 1.

1 × TIDE LINE“hard wash edges around upper-left grey mass”1 × WATER STAIN“pale ring marks in grey wash near centre top”3 × BLOOM, WATER STAIN, TIDE LINE · MAJOR“spotted water blooms in grey wash right of da…”4 × WATER STAIN, TIDE LINE“mottled cloudy grey wash in left mass”7 × BLOOM, OTHER · MAJOR“spotted cloudy grey wash right of dark block”WHOLE SHEET · 3 × OTHERWATER STAINBLOOMTIDE LINEOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 3 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 17 edge segments, 29% crisp, 47% soft or bloomed, 24% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3

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

2026.04.18, day 111 of the Crucible Year, one of 12 paintings from that date (8 shown). 56 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).

THE YEAR

T_234 among all 402

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

Every painting from 2026.04.18 · 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 94 days before this painting.
When each paper was in use