Crucible Year Peter Yuill
Wide black circular sweep over a grey disc at left, joined by a thick dark neck to a heavy black mass at upper right. T_212, tone-stretched: what the model was shownT_212: every pixel as the measuring code classes it
97 × 180 cm · the whole sheet, uncropped

T_212

The engine's reading

A broad black wheel over a pale grey disc swings through a thick neck of ink into a heavy dark mass crowding the upper right.

Record
Date
2026.04.12
Dimensions
97 × 180 cm
Paper
Red Star Mo She Special Effect Xieyi Edition, half-raw (June 2025 batch)
Ink
Yi De Ge Refined Ink Juice, Boku-Undo Genso, Yi De Ge Yun Tou Yan
Enquire about T_212Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

Rain started on the left pond before the storm arrived. Small rings, each one certain it was the first. I stood at the edge in a wet coat and did not count them. Then the weather came in from the east like a cow through a gate: heavy, a little stupid, entirely sure of itself, and it leaned its whole black shoulder on the water until pond and storm were one animal breathing. The pond was not consulted. The pond kept its rings anyway, down under the dark, small and round and stubborn, humming through the argument. By evening the cow had lain down in the reeds, steaming. Out in the grey, the rings were still opening.

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
circular vortex at left, dark lobed mass at upper right, joined by central neck
Movement
figure-eight rotation, left to right through centre; right mass pulls downward against it
Coverage
ink on about four fifths of the paper
Tone
five tonal steps, spread across the range
Layering
grey washes under black arcs; readable at left, buried under darks at right
Edges
crisp on left arcs, ragged on right lobes, soft along grey washes
Feibai
present in lower left arcs of the vortex and streaked left flank of the right mass
Open paper
narrow wedge at top centre, ragged field below the bridge at lower centre
Chance marks
drop rings inside left disc, blotches at top centre, tide line below bridge, spatter around edges
Frame
ink runs off left, bottom left and top right; right edge and top left mostly open

Two masses meet in the middle and turn the sheet into a figure eight. A wide vortex fills the left half, a heavier dark block crowds the upper right, and a thick neck of black joins them just right of centre. The eye enters at the left and is carried round and across.

The left wheel is the live part. Its black arcs follow the brush all the way round, and at the lower left the hairs split into flying white, so the curve keeps its speed while the paper shows through. Beneath, a pale grey disc stays readable, because half-sized bark paper holds each pass where it lands.

The right side spends that. Its streaked left flank has grain, but the block above is a slab of nearly even black with nothing moving inside it, and the neck that feeds it is clumsy. Within the wheel itself the greys cloud together, pocked with drop rings, and the order of passes goes soft.

Ink takes most of the paper, so the white at top centre and below the bridge does little shaping. The plan is clear and the wheel is good. The rest is the year's usual work: committed, uneven, carried by its left half.

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_212T_212, tone-stretchedT_212, classed by brightness
81%of the sheet carries ink
Black 40%Grey 47%Light 13% SHARE OF THE INK, NOT OF THE SHEET
TONAL STEPS

5 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: 0.052 (under 0.045 reads as flat).

0.300.7512345 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

“An energetic double vortex close to R2. The left spiral is fluent, while the right mass is heavy and crowded. Drop rings and blooms in the pale left disc mark the surface. Tone and layering are ordinary.”

Form · BUILT

The left circular sweep has fluent, curved stroke walls. The right dark mass is heavy, with ragged lobes, and the bridging neck is clumsy.

WEAKEST right mass: bulky, slab-like dark block, top right

STRONGEST left spiral arcs following the brush's sweep

Tonal depth · MODELLED

Modulation is 0.052, just above flat. The right mass shows grain and banding. The left crescent darks are mostly uniform. Five tonal steps.

WEAKEST dark crescent at the lower left is fairly flat inside

STRONGEST right mass: grainy, banded interior greys

Layering · LEGIBLE

Pale grey circular washes sit under the black arcs and stay readable at the left. On the right, later dark passes largely cover the earlier greys.

WEAKEST grey passes under the right mass are partly smothered

STRONGEST pale grey disc showing through the left spiral

Composition · WORKING

Two linked vortices make a figure-eight flow, with paper shaped at the top centre and lower centre. Coverage of 0.81 crowds the sheet, and the right block is dense.

WEAKEST right mass is heavy and crowds the right edge

STRONGEST linked double vortex moving the eye from left to right

Material and surface · FLAWED

The left disc interior has many circular drop rings and milky blotches beside the dark arcs. There is a pale cloudy wash edge at the lower centre. Visible in the colour view.

WEAKEST drop rings and blooms inside the pale left disc

STRONGEST dry-brush grain in the right mass

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, 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.

1 × BLOOM“cloudy blotches at the top left of the spiral”4 × WATER STAIN, RING“blotched pale drops in grey wash at top centre”5 × RING · MAJOR“drop rings in the pale grey interior of the l…”4 × BLOOM, TIDE LINE, WATER STAIN, MUD“pale cloudy patch below central bridge”2 × TIDE LINE“pale wash edge below the bridge, lower centre”WATER STAINBLOOMRINGTIDE LINEMUDMAJOR
GEOMETRY

Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 1 principal ink mass traced (cyan), 4 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 18 edge segments, 39% crisp, 33% soft or bloomed, 28% broken.

A1B1C1D1E1F1A2B2C2D2E2F2A3B3C3D3E3F3H1H2H3H4

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

2026.04.12, day 105 of the Crucible Year, one of 13 paintings from that date (4 shown). 45 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: P2 The Switch (working title).

THE YEAR

T_212 among all 402

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

Every painting from 2026.04.12 · This date in the year

Materials

Paper
Red Star Mo She Special Effect Xieyi Edition, half-raw (June 2025 batch), China Xuan Paper Co., Ltd., made 2025.06.07
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)
The sheet of paper was made 309 days before this painting.
When each paper was in use