Crucible Year Peter Yuill
Long horizontal ink painting: a dark band rising left to right under a pale grey arc, a ringed grey block upper left, white paper top right. T_147, tone-stretched: what the model was shownT_147: every pixel as the measuring code classes it
70 × 180 cm · the whole sheet, uncropped

T_147

The engine's reading

A dark ink band climbing a long sheet toward the upper right, under a pale grey arc and a stepped grey slab scattered with water rings.

Record
Date
2026.03.27
Dimensions
70 × 180 cm
Rating
5.3
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_147Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

The pale line wandering across the grey slab is a shoreline. A sea stood there once, considered things, and left, and the edge it gave up is still drawn on the rock, fine as a hair. The rings came later: small bodies out of the dark, each leaving a lip and a hollow, none of them aimed, none of them sorry. I was there for the arrivals. On Mars the orbiters still argue over lines like this one, old shores or only cliffs. The world it belongs to has no weather now, only a long grey afternoon tilted toward a black horizon that keeps rising on the right. The last thing that happened here was water. Above it, white sky, holding still for nothing in particular.

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 V23's reads, from the settled findings, and checked by hand before approval. It explains V23's numbers and may not change them.

Structure
stepped grey slab upper left, pale arcs above, dark crescent band sweeping beneath
Movement
rising left to right; the square-cornered slab sits against it
Coverage
ink on about nine tenths of the paper
Tone
four tonal steps, spread across the range
Layering
pale, grey and dark passes; readable at top centre, merged along the bottom
Edges
feathered dry crest top right; soft lower edges; blunt stepped corners on slab
Feibai
none
Open paper
white crescents along top centre and top right; narrow strip top left
Chance marks
tide line and rings across slab; rings in dark band; bottom blots; spatter top right
Frame
runs off left, right and bottom; top stays open except where pale arcs touch

A dark band climbs from the lower left and breaks against the top right corner. A pale grey arc swings the same way above it, so the eye crosses the sheet rising, twice, before it stops.

The climb is the good part. Where the dark band crests at upper right, the brush has run drier, and the edge frays into fine combed hairs against the pale arc. Raw paper grips a dry brush hard and keeps every fibre of that edge. At the centre the pale, grey and dark passes still read in order, one over the next, because unsized paper holds them apart.

The upper left is where it falls down. A grey slab sits there in stepped, square blocks, stiff against all that curve, and a wandering tide line and a crop of water rings cross it: water left standing on a fast paper, drying where it stopped. Below, the dark settles into an even cloud cut by vertical seams. Ink covers nearly everything; only the white crescents at the top breathe.

So: one real movement inside a crowded, uneven sheet. Fair work, lifted by its crest and held down by its corner.

Read and measured

The rating

THE RATING

T_147, rated 5.3

The combined score, out of 10: V23's reading of the photograph as the read half and V24's twelve tests on the 16-bit file as the measured half, added and divided by 10. The scale is relative to this archive. How each half is made is on the Method page.

READ HALF23.5V23's rating, 4.7, × 5
+
MEASURED HALF29.8twelve tests, of 50
→
RATING5.353.3 ÷ 10
THE READ HALF, V23
Form
2.0 · built
Tonal depth
2.0 · modelled
Layering
2.0 · legible
Composition
2.0 · working
Material and surface
0.6 · flawed
THE MEASURED HALF, V24
Mass
9.4 of 10
Tone
9.2 of 14
Void
3.2 of 8
Flow
6.4 of 10
Balance
1.6 of 8
Measured

How it was measured

FROM THE 16-BIT FILE

What V24 measured.

Plain physical facts with no model involved. Across the year they track how the practice changes. On one sheet they cannot say whether a mark is any good. Millimetres read a few percent high, because the photographs are cropped just inside the paper's edge.

MASS WIDTH252 mm

The width of the ink mask along its medial axis.

DEPTH OF THE DARKS1.54

Optical density at the 75th percentile of the sheet.

LARGEST VOID158 mm

The radius of the largest circle of open paper.

DIRECTIONS0.32

How far the marks align across the sheet. Lower means they run several ways.

BALANCE0.97

Left and right asymmetry of the ink. Lower is more even.

THE FILE3.95

Pixels to the millimetre in the TIFF these were measured from, with the studio light removed.

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_147T_147, tone-stretchedT_147, classed by brightness
90%of the sheet carries ink
Black 44%Grey 35%Light 20% 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: 0.068 (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 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
Composition2WORKING2WORKING2WORKING2WORKING2WORKING2.0
Material and surface1FLAWED0DAMAGED1FLAWED1FLAWED0DAMAGED0.6

READ 1, IN ITS OWN WORDS

“The sweeping arc structure, legible layering and modelled dark band are ordinary for the archive. Water rings and a long tide line run across the principal grey slab and damage the surface, and the bottom of the sheet is crowded.”

Form · BUILT

The large arcs follow the brush's sweep and their walls hold. The upper-left grey mass is a stiff stepped block with bulky square corners.

WEAKEST Stepped, blocky grey slab at upper left

STRONGEST Sweeping dark lower arc rising to the right

Tonal depth · MODELLED

The dark band shows grain, banding and stepped density (modulation 0.068), and the grey slab has texture. The pale arc at upper right is thin and even inside.

WEAKEST Pale upper-right arc is nearly flat inside

STRONGEST Dark lower band with grain and stepped density

Layering · LEGIBLE

There are about three passes: the pale arc, the grey slab and the dark band. The overlaps along the arc edges stay readable. Vertical seam bands complicate the sequence slightly.

WEAKEST Grey slab partly obscured where the dark band overlaps it

STRONGEST Translucent grey arc reading through the dark band edge

Composition · WORKING

The counter-curving arcs give a clear left-to-right rise, and the paper shapes the crescent at the top. Ink covers 90% of the sheet, so the lower band feels packed.

WEAKEST Crowded, heavy lower edge with little breathing room

STRONGEST Rising diagonal sweep of the dark band

Material and surface · FLAWED

About a dozen water rings and a long pale tide line cross the upper-left grey mass. More rings and blots sit in the dark band on the right.

WEAKEST Rings and a meandering tide line across the grey slab

STRONGEST Dry-brush feathered crest of the dark band

FLAWS

6 distinct places, 3 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, 23 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.

9 × TIDE LINE, RING · MAJOR“meandering pale line through upper-left grey …”1 × TIDE LINE · MAJOR“meandering pale line across the grey slab”1 × OTHER“Creases and scratch lines across dark mass”5 × RING · MAJOR“ring cluster inside dark band, right”6 × WATER STAIN, OTHER“dark blots along bottom edge”1 × WATER STAIN“cloudy blotches and dark spots along the bott…”WATER STAINRINGTIDE LINEOTHERMAJOR
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 16 edge segments, 0% crisp, 81% soft or bloomed, 19% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1

V23's rules and arithmetic, and every figure under its own name, are in the Archive record.

Date

2026.03.27, day 89 of the Crucible Year, one of 10 paintings from that date (3 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_147 among all 419

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