Crucible Year Peter Yuill
A huge black arc with grey outer bands curves from lower left to bottom right around a white circle; red stroke at upper right. T_318, tone-stretched: what the model was shownT_318: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_318

The engine's reading

A great black arc wheels over a held circle of bare paper, fanned with stepped grey at upper left and crossed by one red stroke.

Record
Date
2026.05.24
Dimensions
97 × 180 cm
Paper
Red Star Mo She Imitation Antique Chu Bark, Exhibition Edition, half-raw
Ink
Yi De Ge Refined Ink Juice, Boku-Undo Genso, Yi De Ge Yun Tou Yan, colour inks
Enquire about T_318Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Three red drops below the heavy black end, and I am in a kitchen at two in the morning. Someone has cut a thumb on the good knife, the one we said we would sharpen. The other one comes in barefoot, half asleep, and holds the hand under the tap without asking how it happened. I stand by the fridge and keep quiet. The kettle goes on, because the kettle always goes on. The loaf stays half cut on the board, a pale round face turned up at the ceiling. They lean on the counter, shoulder to shoulder, watching the water run pink and then clear, and the plaster goes on crooked, and neither of them straightens 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
one great arc wrapping an open circle, grey fan bands behind it
Movement
rises at lower left, over the top, down off bottom right; red arc descends across it
Coverage
ink on about three quarters of the paper
Tone
six tonal steps, weighted dark
Layering
translucent grey passes, black arc, red pass; readable at upper left and top
Edges
crisp on the arc's inner wall and grey steps; ragged at lower-left end
Feibai
present in the outer grey bands, upper left and upper right
Open paper
round void, lower centre right, cut by bottom edge; top-left corner
Colour
red arc at upper right; red drops and pink ring at lower left
Chance marks
grey smudges at left edge; tide shape at top centre; cloudy patches inside black
Frame
runs off top, right and bottom right; left edge and top-left corner open

One great arc rises from the lower left, rolls across the top and drops off the bottom right, and the eye rides it the whole way. Inside, a round of bare paper is held open and cut by the bottom edge, so the turn never closes.

The finest passage is the grey fan at upper left. Translucent bands step outward, each pass legible through the next, because the half-sized paper keeps their edges crisp and lets layers stack without sinking into one another. Dry-brush streaks run with the sweep, and a red arc at upper right lies cleanly over the grey.

The trouble is where the arc begins. At the lower left it breaks into stacked, slab-like wedges and a ragged black block, and the motion stalls. The black is dense enough to seal the paper: its descending left half reads as flat surface and hides the passes beneath. A hard-edged tide shape at the top centre and cloudy patches in the black at upper right are small.

The sweep and its held circle are fully resolved, and they outweigh a clumsy start. A painting of real force, faulted at one corner.

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_318T_318, tone-stretchedT_318, classed by brightness
72%of the sheet carries ink
Black 58%Grey 38% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

6 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: 0.062 (under 0.045 reads as flat).

0.300.75123456 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 3 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
Layering3ORDERED2LEGIBLE3ORDERED3ORDERED2LEGIBLE2.6
Composition2WORKING2WORKING2WORKING3COMMANDING2WORKING2.2
Material and surface2SOUND2SOUND2SOUND2SOUND2SOUND2.0

READ 1, IN ITS OWN WORDS

“A large arc sheet in R3's family. It has clear translucent layering and a well-shaped white void, but the bottom-left terminal is blunt and the black mass reads flatter than R3's. Overall it is a solid, ordinary sheet.”

Form · BUILT

The main arc holds and follows the brush's travel to the bottom right. At the bottom left the arc ends in clumsy, slab-like wedges with awkward joins.

WEAKEST Blunt stacked block terminals at bottom-left of arc

STRONGEST Main black arc sweeping to bottom right

Tonal depth · MODELLED

The outer grey bands step and grade well. The tone-stretched view shows mottling and banding inside the dark arc, but at viewing distance its left portion reads as fairly uniform black.

WEAKEST Black arc's left half reads flat in colour

STRONGEST Graded translucent outer bands at upper left

Layering · ORDERED

Several translucent grey passes overlap in a readable order on the left and top. The red arc pass sits legibly over the grey at upper right.

WEAKEST Dark arc covers underlying passes rather than reading through

STRONGEST Stepped translucent bands overlapping at upper left

Composition · WORKING

The big arc carries the eye from bottom left over the top and down to the right, and frames a shaped white void. The bottom-left end is jammed, and the top-edge form is cramped.

WEAKEST Crowded broken terminal at bottom left

STRONGEST Empty circular interior framed by the arc

Material and surface · SOUND

The ink is controlled. Blotchy patches inside the black arc show mainly in the tone-stretched view. Faint grey marks on the left paper are small. The red drops are deliberate colour.

WEAKEST Cloudy mottling inside the dark arc

STRONGEST Dry-brush streaks in the outer grey bands

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, 12 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.

4 × OTHER, TIDE LINE“outlined blot shape at top edge centre”1 × WATER STAIN“Mottled cloudy patches inside dark arc, upper…”3 × OTHER, WATER STAIN“faint cloudy pale wash at top inside the whit…”4 × OTHER, WATER STAIN, RING“Faint grey smudges on paper at left edge”WATER STAINRINGTIDE LINEOTHER
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 3 principal ink masses traced (cyan), 1 enclosed void at true size in its grid cells (amber), the main gesture from start to end (red). Of 20 edge segments, 25% crisp, 70% soft or bloomed, 5% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1

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

2026.05.24, day 147 of the Crucible Year, one of 10 paintings from that date (9 shown). 15 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: P3 The Floor Rises (working title).

Made after a calmer fortnight than 15 of the 15 dates before it.
THE YEAR

T_318 among all 402

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

Every painting from 2026.05.24 · This date in the year

Materials

Paper
Red Star Mo She Imitation Antique Chu Bark, Exhibition Edition, half-raw, China Xuan Paper Co., Ltd. (中国宣纸股份有限公司), made 2026.01.14
Ink MB4
Yi De Ge Refined Ink Juice, Yi De Ge (Beijing)
Ink MB5
Boku-Undo Genso, Boku-Undo
Ink MB6
Yi De Ge Yun Tou Yan, Yi De Ge (Beijing)
Colour
colour inks, recorded together
The sheet of paper was made 130 days before this painting.
When each paper was in use