Crucible Year Peter Yuill
A broad black crescent sweeps from the left edge along the bottom and up the right side, over pale grey arcs, beneath open white paper. T_164, tone-stretched: what the model was shownT_164: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_164

The engine's reading

A single black crescent hooks down from the left edge, runs heavy along the bottom and climbs the right side into spatter, holding up a bowl of bare paper.

Record
Date
2026.04.03
Dimensions
97 × 180 cm
Paper
Tanxi Thickened Grade A Half-Raw 6-Foot
Ink
Kuretake Shogei Kiwami, Yi De Ge Zhonghua, Boku-Undo Bokkou
Enquire about T_164Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

The spatter at the top right is where the wave forgets it is water. Out on the cold coasts, the big swells travel for days from a storm that never showed on the shore's horizon, and they arrive looking calm, and then the shelf rises under them and they stand. The whole ocean behind it, pushing, and the front of it simply out of floor. Spray goes up as beads. Some falls back pale and dries in rings on the rock. Down at the other end the trough is still dragging gravel, loud, clumsy, the part of the wave the surfers curse. It goes too. Gulls ride the slack water behind it, waiting for the next one to come in grey off the edge of the world.

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 great crescent from left hook, along the bottom, up the right arm
Movement
left to right, down then rising; bottom-left fragments chop against it
Coverage
ink on about three quarters of the paper
Tone
four tonal steps, spread across the range
Layering
pale washes, mid-grey arcs, black crescent; readable across centre and right
Edges
crisp along the crescent's upper rim; soft in pale arcs; broken bottom left
Feibai
present in the dark band's lower sweep and the right arm's outer curve
Open paper
large bowl-shaped field across the upper centre, cradled by the crescent
Chance marks
hard-rimmed pale drip trails upper centre; spatter at right arm's head; white chip bottom centre
Frame
runs off left, bottom and right edges; top edge open apart from pale washes

One dark crescent spans the paper. It drops from a hook at the left edge, runs heavy along the bottom, and climbs the right side into a burst of spatter near the top corner. Above it the paper stays open, a wide bowl of light that the stroke holds up.

The right arm is the sheet's best passage. Its black is grained, spotted and banded, and in the lower sweep the hairs parted into streaks of bare paper that keep the stroke's direction. Pale grey arcs show beneath as earlier passes. The half-sized paper took those washes without letting them spread, so each keeps its own edge under the black.

The cost sits bottom left. The dark breaks there into blunt slabs and scraps that overlap without order, the lower band goes flat inside, and the movement stalls. Pale drip trails with hard rims cross the upper paper and a white chip nicks the bottom edge; the sheet absorbs both.

That leaves a sheet well above the archive's run: one stroke carried edge to edge with its weight where it belongs, and a corner that never joins in. The corner costs something. The crescent settles 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_164T_164, tone-stretchedT_164, classed by brightness
74%of the sheet carries ink
Black 42%Grey 45%Light 13% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

4 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: 0.055 (under 0.045 reads as flat).

0.300.751234 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 depth2MODELLED3DEEP3DEEP3DEEP2MODELLED2.6
Layering2LEGIBLE3ORDERED3ORDERED2LEGIBLE2LEGIBLE2.4
Composition3COMMANDING2WORKING2WORKING3COMMANDING3COMMANDING2.6
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A strong crescent composition with a shaped void and readable grey under-washes. The marks are good but uneven: the lower-left masses are slab-like and flatter, and there are minor pale water marks near the top. Overall above R2 but well short of R3.”

Form · BUILT

Main crescent follows brush travel from left round to right arm; lower band and bottom-left fragments are slab-like and broken, with clumsy joins.

WEAKEST Bulky grey-black slab along the lower left band

STRONGEST Rising dark right arm of the crescent

Tonal depth · MODELLED

Right arm and centre band show streaks, grain and dry-brush banding; lower-left dark wedge and bottom-centre dark are flatter. Modulation 0.055, four tonal steps.

WEAKEST Dark lower-left band, fairly even inside

STRONGEST Grained, spotted right arm with streaked interior

Layering · LEGIBLE

Translucent grey arcs and top-left panels sit under the black crescent and stay readable; only two or three passes, and the order is not built across the sheet.

WEAKEST Bottom-left overlaps are cluttered and fragmentary

STRONGEST Pale grey arc washes under the dark crescent

Composition · COMMANDING

A large crescent carries the eye from upper left, down, then up the right arm to the spatter; the open top centre is shaped by the arc. The bottom-left corner is busy.

WEAKEST Fragmented bottom-left corner marks

STRONGEST Sweeping crescent enclosing shaped empty top centre

Material and surface · SOUND

Ink is controlled, with dry-brush grain in the central band. Faint pale wash drops and stains in the top centre and top right, and a small white chip at the bottom edge, lie away from the main masses.

WEAKEST Pale watery drip trails in the upper centre

STRONGEST Dry-brush streaking in the central band

FLAWS

4 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 4 distinct places, 14 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 × WATER STAIN, OTHER, TIDE LINE“pale grey drip trail and wash drops in upper …”1 × WATER STAIN“pale wash patches around top-right spatter”1 × WATER STAIN“Pale droplet trail against inner edge of righ…”7 × OTHER“white chip/gap at bottom edge under dark band”WATER STAINTIDE LINEOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 7 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 15 edge segments, 20% crisp, 73% soft or bloomed, 7% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4H5H6H7

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

2026.04.03, day 96 of the Crucible Year, one of 13 paintings from that date (3 shown). 33 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: P1 Warm-up (working title).

THE YEAR

T_164 among all 402

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

Every painting from 2026.04.03 · 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 MB1
Kuretake Shogei Kiwami, Kuretake
Ink MB2
Yi De Ge Zhonghua, Yi De Ge (Beijing)
Ink MB3
Boku-Undo Bokkou, Boku-Undo
When each paper was in use