Crucible Year Peter Yuill
Two huge black curved quadrants form a broken arch on pale paper, split by a narrow vertical gap above a white semicircle at lower centre. T_416, tone-stretched: what the model was shownT_416: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_416

The engine's reading

Two black quarter-rings of brushed bands rise from the bottom corners and stop short of each other, around a pale channel and a half circle of bare paper.

Record
Date
2026.11.03
Dimensions
97 × 180 cm
Rating
6.3
Paper
Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper, self-sized
Ink
Yi De Ge Yun Tou Yan, Boku-Undo Gentoku Super Concentrated, Yi De Ge Pine Soot Ink, Shisan Yue Calligraphy and Painting Ink
Enquire about T_416Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

I worked the gap. Two halves of a ring station, hauled out from separate yards, and when they came within hailing range the docking collars were the wrong size. We bolted on small grey plates anyway, and they closed nothing. For years I ran the shuttle through that slot with spare parts and letters. Each side kept its own clocks and its own bad coffee and sent me across with complaints about the other. Some coolant got out once and hung in the channel in black beads, and I learned to fly around them. At shift end the planet came up under us, white and enormous, filling the doorway below my feet.

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
two quarter-ring masses of concentric bands, split by a vertical gap, never joined
Movement
curved sweep around a lower centre, with the vertical channel dropping against it
Coverage
ink on about four fifths of the paper
Tone
three tonal steps, weighted dark
Layering
two kinds, grey and black; readable at band ends and outer rims, buried in quadrants
Edges
crisp on black panel ends and inner curves, broken at dry outer band ends
Feibai
present at upper right band end, lower centre fan and top of channel
Open paper
narrow vertical channel widening into a half circle at lower centre; both upper corners
Chance marks
spatter in central channel and upper right; creases lower left; faint smudge in right mass
Frame
ink runs off bottom, lower left and lower right, and touches top; upper corners open

A great arch, broken at the crown. Two quarter-ring masses swing up from the bottom corners and stop short of each other, leaving a pale channel that falls down the middle and opens into a half circle of bare paper. The eye goes round, then down, and the white is as shaped as the black.

The outer bands are where the sheet lives. At upper left a grey arc runs under black panels, and the order of passes reads plainly, because the half-sized paper keeps each layer from sinking into the last. At the upper right the band ends overlap, translucent, then the brush lifts into fast dry streaks with bare paper running through them.

The price is inside. The lower-right quadrant is a filled slab, almost one black from edge to edge, with little travel of the brush and every earlier pass buried. Creases crumple the lower-left mass, small but visible from where you stand.

Where that leaves it is clear: a large, legible structure, well made at the rim and overweight at the heart. A good painting, with its life at the edges and too much ink between them.

Read and measured

The rating

THE RATING

T_416, rated 6.3

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 HALF27.5V23's rating, 5.5, × 5
+
MEASURED HALF35.6twelve tests, of 50
→
RATING6.363.1 ÷ 10
THE READ HALF, V23
Form
2.0 · built
Tonal depth
1.8 · modelled
Layering
2.0 · legible
Composition
2.2 · working
Material and surface
1.6 · sound
THE MEASURED HALF, V24
Mass
10.0 of 10
Tone
6.8 of 14
Void
4.8 of 8
Flow
6.0 of 10
Balance
8.0 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 WIDTH199 mm

The width of the ink mask along its medial axis.

DEPTH OF THE DARKS1.80

Optical density at the 75th percentile of the sheet.

LARGEST VOID87 mm

The radius of the largest circle of open paper.

DIRECTIONS0.22

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

BALANCE0.33

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

THE FILE4.02

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

Read by the Visual Analysis Engine, version 23.13, on 2026.11.03: 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_416T_416, tone-stretchedT_416, classed by brightness
85%of the sheet carries ink
Black 79%Grey 14% 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: 0.054 (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, 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 depth2MODELLED1THIN2MODELLED2MODELLED2MODELLED1.8
Layering2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2LEGIBLE2.0
Composition2WORKING2WORKING2WORKING3COMMANDING2WORKING2.2
Material and surface1FLAWED1FLAWED2SOUND2SOUND2SOUND1.6

READ 1, IN ITS OWN WORDS

“A broken ring of heavy arcs around a pale channel: clear structure and movement, but darks swallow most layering and tonal range, and creases mar the lower-left mass. Ordinary overall, with a surface weakness.”

Form · BUILT

Two quarter-ring masses and outer arc bands are coherent, with holding walls and curved travel; inner quadrants read as heavy filled slabs, and band ends are blunt.

WEAKEST Huge right quadrant fill, bulky and slab-like inside its arc

STRONGEST Outer arc bands following the sweep of the brush

Tonal depth · MODELLED

Left mass steps between two dark wedges, outer bands show grey overlaps; right quadrant reads almost flat black in colour. Modulation 0.054 barely clears flat; darks dominate, few mid-greys.

WEAKEST Right quadrant interior, near uniform black in colour view

STRONGEST Stepped greys of left wedge and outer arc overlaps

Layering · LEGIBLE

Band overlaps at the top and right edges and grey under-arcs stay readable; inside the main quadrants, later black passes largely cover the earlier ones, so sequence is only partly legible.

WEAKEST Inner dark quadrants swallow earlier passes beneath them

STRONGEST Translucent overlaps at top-left and upper-right band ends

Composition · WORKING

Two arcs swing around a shaped vertical channel and pale lower circle, giving clear movement; dark weight fills most of the sheet, leaving lower masses heavy and static.

WEAKEST Dark quadrants crowd the frame; small central blocks feel incidental

STRONGEST Broken ring with pale central channel opening into lower circle

Material and surface · FLAWED

Sharp crease lines cross the left dark mass and upper-left band, visible in colour and stronger when stretched; pale specks mid-left, milky smudge on right mass's inner edge.

WEAKEST Crease lines and crumpling inside lower-left dark mass

STRONGEST Dry-brush streaks at upper right and lower centre

FLAWS

5 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 5 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.

5 × OTHER“Short crease lines across the upper-left oute…”7 × OTHER, WATER STAIN“Sharp crease crack in the upper part of the l…”5 × WATER STAIN, BLOOM“Small milky smudge near the inner edge of the…”1 × DEAD INK“Near-uniform black interior of the right quad…”5 × OTHER · MAJOR“Crease lines and crumpled paper across the lo…”WATER STAINBLOOMDEAD INKOTHERMAJOR

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

Date

2026.11.03, day 310 of the Crucible Year, one of 11 paintings from that date. 13 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).

Every painting from 2026.11.03 is on this site. 6 other dates with more than five works are shown in full.
THE YEAR

T_416 among all 419

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

Every painting from 2026.11.03 · This date in the year

Materials

Paper
Half-Cooked Red Star Mo She 6-Foot Bark Xuan Paper, self-sized, 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)
Ink MB10
Shisan Yue Calligraphy and Painting Ink, Shisan Yue (Thirteenth Month)
The sheet of paper was made 209 days before this painting.
When each paper was in use