Crucible Year Peter Yuill
Overlapping translucent slabs fan from a point at left across pale paper, merging into a near-black mass at upper right, with drips at left. T_378, tone-stretched: what the model was shownT_378: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_378

The engine's reading

Broad translucent slabs of black fan out from a point at the left and thicken into one dark mass against the upper right corner.

Record
Date
2026.09.23
Dimensions
97 × 180 cm
Rating
5.3
Paper
Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper
Ink
Yi De Ge Yun Tou Yan, Boku-Undo Gentoku Super Concentrated, Yi De Ge Pine Soot Ink, colour inks
Enquire about T_378Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

In this country the law says every new king must lay his map over the last one, in smoked glass, so that the old borders show through and nothing is forgotten. It works for a while. At the western point you can still read who owned the river. Go east and the glass thickens. By the far corner the whole kingdom is a single black pane, and the current king rules it with total confidence, issuing decrees about a province he cannot locate. He is quite happy. I poured his tea, and he asked me the way to his own capital. West of the first pane, past the edge of the surveyed world, a few dark drops lead away across the white: a cartographer, leaving on foot, sleeve still dripping.

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
broad flat slabs overlapping along one arc, joined into a single fan
Movement
rising left to right along the arc, nothing running against it
Coverage
ink on about four fifths of the paper
Tone
two tonal steps, weighted dark
Layering
pale grey passes under dark translucent slabs, readable at left, centre and lower edge
Edges
crisp at squared slab ends, soft around lower left, broken at lower right
Feibai
none
Open paper
pale band wrapping from top left down the margin, along a stepped lower edge
Colour
faint warm reddish brown in the lower-left slab
Chance marks
spatter at left margin and bottom centre, grey stains at left, round spot lower left
Frame
ink runs off top and right; left and bottom stay open

A wide fan of black swings up from a sharp point at the left and travels right, slab over slab, until it jams against the top corner. The direction is clear from across a room, and so is the weight: the heaviest ink sits high on the right.

The interest lies left of centre, where each flat pass lands over the last and its wall stays visible through the new layer. Half-sized paper softens an edge without losing it, so the order of building stays legible. The faint red in the lower-left slab is paint, and it lifts that corner from its cool grey border. At lower right the strokes thin into dry, streaked ends, the liveliest surface on the sheet.

Upper right, the passes stack until their order is gone. Every added layer brings density and takes away information, leaving a squared, stiff block that barely shifts inside. A fold and crumple lines cross it without much harm. The smears and drips in the left margin belong to no form and are simply accidents.

An average sheet, then, competently built. It rewards a slow look on the left and shuts that look down on the right.

Read and measured

The rating

THE RATING

T_378, 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 HALF22.5V23's rating, 4.5, × 5
+
MEASURED HALF30.6twelve tests, of 50
→
RATING5.353.1 ÷ 10
THE READ HALF, V23
Form
2.0 · built
Tonal depth
1.0 · thin
Layering
2.0 · legible
Composition
2.0 · working
Material and surface
1.4 · flawed
THE MEASURED HALF, V24
Mass
8.8 of 10
Tone
7.0 of 14
Void
8.0 of 8
Flow
3.6 of 10
Balance
3.2 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 WIDTH209 mm

The width of the ink mask along its medial axis.

DEPTH OF THE DARKS1.52

Optical density at the 75th percentile of the sheet.

LARGEST VOID114 mm

The radius of the largest circle of open paper.

DIRECTIONS0.44

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

BALANCE0.66

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

THE FILE4.38

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_378T_378, tone-stretchedT_378, classed by brightness
80%of the sheet carries ink
Black 69%Grey 28% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

2 families of tone.

Every inked pixel's brightness in 64 bins, smoothed; each circled peak holds at least 4% of the ink. Two or fewer: Tonal depth is held at the bottom rung whatever the model reads. A dense sheet of many translucent passes can count low here, so Layering is left to the reads. Life inside the black: 0.053 (under 0.045 reads as flat).

0.300.7512 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 surface1FLAWED1FLAWED2SOUND1FLAWED2SOUND1.4

READ 1, IN ITS OWN WORDS

“A fan of overlapping slabs related to R3, but heavier and more crowded. The upper-right dark fuses into one flat field, and creases plus margin stains weaken the surface. An ordinary sheet.”

Form · BUILT

Broad arc slabs fan from the left point with holding walls and dry-brush ends at the lower right; the upper-right slabs fuse into one bulky block.

WEAKEST Bulky dark slab block filling upper right

STRONGEST Tapered arc stroke sweeping from left tip

Tonal depth · MODELLED

The stretched view shows grain and stepped density in the centre and left slabs. Only two tonal steps; in the colour view the upper-right dark reads as a flat surface.

WEAKEST Dense near-uniform dark in upper right mass

STRONGEST Banded, grained centre slab with brush striations

Layering · LEGIBLE

Several overlapping slabs can be read at the left and centre edges. On the right, the later dark passes bury the earlier ones, so the order of passes is lost there.

WEAKEST Upper-right passes merged into one dark field

STRONGEST Translucent slab edges overlapping at left and centre

Composition · WORKING

A fan-shaped arc carries the eye from left to right. Ink covers 80% of the sheet, so the mass crowds the top and right edges and the leftover paper at bottom left is weakly shaped.

WEAKEST Crowded, heavy upper-right mass presses on edges

STRONGEST Fan arc rising from left point

Material and surface · FLAWED

A vertical fold and crumple creases run through the central dark mass. Grey blotches and drips mark the left margin, and a round spot sits inside the lower-left slab.

WEAKEST Crease lines and fold through central dark mass

STRONGEST Dry-brush trailing ends at lower right

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, 17 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.

3 × OTHER · MAJOR“vertical fold/crease line through centre dark…”2 × DEAD INK“flat dense dark across upper right”6 × WATER STAIN, OTHER, RING“grey blotches and smears on left paper margin”1 × OTHER“paper crease lines through dark central mass”3 × RING, WATER STAIN, OTHER“round spot inside lower-left slab”1 × OTHER“small ink drops below lower edge of mass”WHOLE SHEET · 1 × OTHERWATER STAINRINGDEAD INKOTHERMAJOR

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

Date

2026.09.23, day 269 of the Crucible Year, one of 2 paintings from that date. 11 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: P4 S14 (working title).

THE YEAR

T_378 among all 419

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

Every painting from 2026.09.23 · This date in the year

Materials

Paper
Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper, China Xuan Paper Co., Ltd., made 2026.04.08
Ink MB6
Yi De Ge Yun Tou Yan, Yi De Ge (Beijing)
Ink MB8
Boku-Undo Gentoku Super Concentrated, Boku-Undo
Ink MB9
Yi De Ge Pine Soot Ink, Yi De Ge (Beijing)
Colour
colour inks, recorded together
The first painting made with this set of inks (MB6, MB8, MB9, MC).
When each paper was in use