Crucible Year Peter Yuill
Grey arc rising from lower left to upper right with a feathered top edge, bare paper upper left, solid black block filling the right. T_146, tone-stretched: what the model was shownT_146: every pixel as the measuring code classes it
70 × 180 cm · the whole sheet, uncropped

T_146

The engine's reading

A grey arc climbs from the lower left into a wall of black, its top edge combed into fine streaks under a dome of bare paper.

Record
Date
2026.03.27
Dimensions
70 × 180 cm
Paper
Tanxi Thickened Grade A Special Jing Pi Small 6-Foot (raw)
Ink
Kuretake Shogei Kiwami, Yi De Ge Zhonghua, Boku-Undo Bokkou
Enquire about T_146Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

In this country night does not fall. It comes across the country as a wall, black and flat-faced, and it moves at a walking pace, so you always know where it is. The grey slope is the last hill before it. Every blade of grass on the crest has stood up on end, the fringe running all along the top like the hair on a cat's back, because the grass can feel the dark leaning closer. Shepherds bring the flocks down in good time. Lovers walk beside the wall for a mile with their hands on it, which is permitted. I stayed on the hill too long once, to see. The dark was cool and smooth as slate, and the stars were all on the other side of 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
grey arc rising from lower left, meeting a black block across the right
Movement
upward sweep to the right, halted where it meets the black block
Coverage
ink on about three quarters of the paper
Tone
three tonal steps, weighted dark
Layering
pale granular wash, grey arc, black block; readable along the lower centre
Edges
feathered fringe on upper arc; soft grey transitions; stiff straight edges on black block
Feibai
none
Open paper
pale dome across the upper left, its lower boundary shaped by the arc
Chance marks
blooms through lower arc band; spatter and stains upper left; crease in black
Frame
ink runs off bottom, right, lower left and top right; upper left stays open

A grey arc climbs from the lower left and runs into a wall of black. Above it the bare paper rises into a pale dome, spattered at the corner. The eye travels up the curve until the right of the sheet stops it.

The arc is where the painting lives. On raw paper the ink has wicked upward from its upper edge into a fringe of fine grey streaks, like hair lifted by static. Inside the band the passes stay apart: a pale granular wash, a darker crescent laid over it, and the grain of the paper showing through both.

The black block works differently. It is a filled slab with a stiff right edge, and its upper reaches settle into a sealed, nearly uniform black. It buries the earlier passes instead of building on them, and it crowds the edge. Round blooms pock the lower band and are a mild distraction. A crease runs through the black, and the sheet absorbs it.

Taken whole, the sheet sits in the middle of the run. A curve with real movement is held down by a weight that adds nothing. It is worth a look, and not a long one.

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_146T_146, tone-stretchedT_146, classed by brightness
73%of the sheet carries ink
Black 64%Grey 31% 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: 0.057 (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, 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

“The bold arc rising into a black right block has a clear direction and a feathered edge. The right mass is a flat slab, and blooms mottle the lower band.”

Form · BUILT

The arc band holds its curve and follows the stroke's travel. The right black mass is a heavy filled-in rectangle with a stiff vertical right edge.

WEAKEST Right dark block: bulky slab with blunt edges

STRONGEST Sweeping grey arc with feathered upper edge

Tonal depth · MODELLED

The arc interior shows grain, mottling and graded density. The right black block varies only slightly (modulation 0.057). Three tonal steps.

WEAKEST Upper part of the right black mass is near-uniform

STRONGEST Arc band, graded from pale texture to deep grey

Layering · LEGIBLE

A pale textured arc, a darker grey crescent and the black block read as separate passes along the arc. On the right the black largely buries what lies beneath.

WEAKEST Right block mostly covers the earlier passes

STRONGEST Grey arc pass under a darker overlapping crescent

Composition · WORKING

The curve carries the eye up and to the right, and the empty upper left takes a dome shape. The right block is dense and dead weight.

WEAKEST Right third is a heavy, static black wall

STRONGEST Arc sweeping from bottom left up into the right mass

Material and surface · FLAWED

Round dark blotches scattered through the lower grey band are visible in the colour view. A vertical crease line runs through the right black mass. Stray spots in the upper left.

WEAKEST Mottled bloom spots across the lower arc band

STRONGEST Feathered dry-bleed fringe along the arc's upper edge

FLAWS

3 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 3 distinct places, 16 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.

5 × WATER STAIN“Scattered grey spots and specks on the upper-…”6 × OTHER, TIDE LINE“Vertical crease or line inside the right blac…”5 × BLOOM · MAJOR“Round mottled dark blotches through the lower…”WATER STAINBLOOMTIDE LINEOTHERMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 5 principal ink masses traced (cyan), 3 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 26 edge segments, 12% crisp, 85% soft or bloomed, 4% 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

2026.03.27, day 89 of the Crucible Year, one of 10 paintings from that date (6 shown). 70 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).

Made after one of the busiest fortnights of the previous two months: 70 works in the fourteen days before.
THE YEAR

T_146 among all 402

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

Every painting from 2026.03.27 · This date in the year

Materials

Paper
Tanxi Thickened Grade A Special Jing Pi Small 6-Foot (raw), Anhui Jingxian Tanxi Xuan Paper Art Products Co., Ltd., made 2015.11.19
Ink MB1
Kuretake Shogei Kiwami, Kuretake
Ink MB2
Yi De Ge Zhonghua, Yi De Ge (Beijing)
Ink MB3
Boku-Undo Bokkou, Boku-Undo
The sheet of paper was made 3781 days before this painting.
When each paper was in use