Crucible Year Peter Yuill
Large grey and black brush arcs form a bowl across a pale landscape sheet, rising at right into a dark wedge topped with drips. T_268, tone-stretched: what the model was shownT_268: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_268

The engine's reading

A great ink bowl swings across the paper, pale at the left, grey through the bottom, rising at the right into a black slab beaded with drips.

Record
Date
2026.04.26
Dimensions
97 × 180 cm
Paper
Tanxi Thickened Grade A Half-Raw 6-Foot
Ink
Yi De Ge Refined Ink Juice, Boku-Undo Genso, Yi De Ge Yun Tou Yan
Enquire about T_268Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Cormorants, a row of them on the black rock at the right, necks up, the way they stand before weather. They hold their wings open to dry, though nothing on a rock in that wind is going to dry. Behind them the sea has already risen once, gone grey, fallen, and come round for another try. They know. They have known since the light went flat at noon. None of them leaves. I stood out there with them for a while, collar up, spray arriving sideways, and the big curl of water came over slow as a door on a hinge. The birds shook out their feathers and leaned into it.

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 arcs forming a bowl, joined at the bottom, rising into a right wedge
Movement
one sweep left to right; vertical drips on the wedge cut across
Coverage
ink on about four fifths of the paper
Tone
five tonal steps, spread across the range
Layering
pale, mid-grey and black passes, readable across centre and bottom
Edges
crisp on the grey rims; broken dry-brush on the left arc and right flank
Feibai
present along the left arc and the right flank of the black sweep
Open paper
a half-moon of bare paper held inside the bowl, upper left and centre
Chance marks
pale drip trail and blot top centre; spatter upper right; small ring right
Frame
ink runs off the left and bottom edges; top and right stay open

One curve does almost all the work. It enters at the upper left as a pale grey crescent, drops through the bottom in a broad mid-grey band, and climbs at the right into a slab of black beaded with drips. Above it the bare paper becomes a half-moon of light, shaped entirely by the swing around it.

The left flank is the best of it. There the brush ran fast and dry, and the hairs split into long parallel streaks that follow the curve all the way down. The paper is half-sized, so each grey keeps its rim, and the passes stack in plain order, pale over mid over black. The black stays open, with streaks, grain and a crumbly seam running through it.

The cost sits at the right. The dark mass ends in a squared, blunt wedge, buries the greys beneath it and piles weight into the bottom corner. The grey band across the lower centre goes flat. A pale drip trail and blot sit against the inner rim at top centre. The creases are absorbed.

The sheet is big and sure. Its heaviest corner is its weak point, and its fastest stroke is its strength.

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_268T_268, tone-stretchedT_268, classed by brightness
79%of the sheet carries ink
Black 36%Grey 41%Light 23% 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: 0.062 (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 depth3DEEP2MODELLED2MODELLED2MODELLED2MODELLED2.2
Layering3ORDERED3ORDERED3ORDERED3ORDERED3ORDERED3.0
Composition3COMMANDING2WORKING2WORKING2WORKING2WORKING2.2
Material and surface2SOUND1FLAWED2SOUND2SOUND1FLAWED1.6

READ 1, IN ITS OWN WORDS

“A large layered arc with readable translucent passes and a well-modelled dark mass. The right mass is somewhat slab-like. There are small surface accidents: a pale drip and blot at top centre, and creases.”

Form · BUILT

Left and bottom arcs follow brush travel with dry-brush striations; the right dark mass is a squared, slab-like wedge with a blunt corner edge.

WEAKEST Right dark mass reads as a blunt wedge

STRONGEST Dry-brush left arc following the sweep

Tonal depth · DEEP

Dark interior modulation 0.062, five tonal steps; right mass shows streaking, drips and grain, and grey arcs are banded with graded overlaps.

WEAKEST Lower centre dark band fairly even

STRONGEST Right dark mass with streaks and grain

Layering · ORDERED

Several translucent arcs stack in readable order from pale outer to dark inner; overlaps build depth, though the right black partly covers earlier passes.

WEAKEST Dark mass covers some underlying grey passes

STRONGEST Overlapping translucent grey arcs at left-centre

Composition · COMMANDING

A single large arc carries the eye left to right; the pale bowl above is shaped by the arcs. Bottom is heavy and cropped, right top slightly busy.

WEAKEST Busy dripped top edge of dark mass

STRONGEST Sweeping bowl arc framing the empty top

Material and surface · SOUND

Ink controlled with good dry-brush; a pale stray drip trail and blot sits top centre, paper creases cross the greys, and a vertical crease line marks the dark mass.

WEAKEST Pale drip trail and blot at top centre

STRONGEST Dry-brush edges on left and right arcs

FLAWS

7 distinct places, 1 major.

Each read must name every flaw and where it is, in a ninth of the sheet. Here the reads named flaws in 7 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.

2 × WATER STAIN“small drip spots near the upper left edge”5 × WATER STAIN · MAJOR“pale drip trail and blot above the arc's inne…”2 × OTHER“scattered stray spatter and drip marks in upp…”2 × OTHER“paper crease lines crossing grey and dark mas…”3 × RING“small pale ring right of dark mass”4 × OTHER“vertical crease line through the dark mass”WHOLE SHEET · 1 × OTHERWATER STAINRINGOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 1 enclosed void at true size in its grid cells (amber), the main gesture from start to end (red). Of 14 edge segments, 36% crisp, 50% soft or bloomed, 14% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1

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

2026.04.26, day 119 of the Crucible Year, one of 13 paintings from that date (10 shown). 55 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_268 among all 402

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

Every painting from 2026.04.26 · This date in the year

Materials

Paper
Tanxi Thickened Grade A Half-Raw 6-Foot, Anhui Jingxian Tanxi Xuan Paper Art Products Co., Ltd., made 2024
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)
When each paper was in use