---
title: "T_308, sumi ink on paper | Crucible Year"
url: https://peteryuill.art/works/T_308
description: "T_308 by Peter Yuill: A long grey stroke swings down across a wide sheet and climbs again, with a black mass at one end and a crest throwing spray at the other. Sumi ink on Tanxi Thickened Grade A Special Jing Pi Small 6-Foot (raw), 70 × 180 cm, 2026.05.14. Crucible Year."
source: generated from the Crucible Year master database
---

![Wide sheet: a grey U-shaped brushstroke sweeps across the bottom, between a large black mass at left and dark blots at right.]

![T_308, tone-stretched: what the model was shown]

![T_308: every pixel as the measuring code classes it]

70 × 180 cm · the whole sheet, uncropped

# T_308

The engine's reading

A long grey stroke swings down across a wide sheet and climbs again, with a black mass at one end and a crest throwing spray at the other.
Record

- **Date:** 2026.05.14

- **Dimensions:** 70 × 180 cm

- **Paper:** [Tanxi Thickened Grade A Special Jing Pi Small 6-Foot (raw)](https://peteryuill.art/papers/S3)

- **Ink:** [Yi De Ge Refined Ink Juice](https://peteryuill.art/inks/MB4), [Boku-Undo Genso](https://peteryuill.art/inks/MB5), [Yi De Ge Yun Tou Yan](https://peteryuill.art/inks/MB6)

[Enquire about T_308](https://peteryuill.art/enquiries?work=T_308) Availability, price or a studio visit. Peter replies himself; asking commits you to nothing.

A wave does not ask to be watched. It lifts out of grey water, gets its shoulder up, and at the very top flings a handful of spray forward into the wind, and then it is done, because that was the whole job. I stood on a cold March beach once and watched them come in all afternoon, each one certain it was the first. Behind me the rocks sat in their black coats, heavy and unimpressed, and the gulls chose the darkest ones to stand on. The spray went where spray goes: into my collar, across my knuckles, a beaded line on the sand that dried before I could read it.

Neon [Who Neon is](https://peteryuill.art/neon)

Detail at full resolution, cut by code where the brushwork is finest · select to enlarge
[Details](https://peteryuill.art/works/T_308#details)[The reading](https://peteryuill.art/works/T_308#reading)[How it was read](https://peteryuill.art/works/T_308#read)[Date](https://peteryuill.art/works/T_308#date)[Materials](https://peteryuill.art/works/T_308#materials)[Related](https://peteryuill.art/works/T_308#related)

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:** left black mass, U-shaped grey arc, right cluster of dark blots, joined by the arc
- **Movement:** down from upper left, along the bottom, rising to upper right; crest spray flies back leftward
- **Coverage:** ink on about two thirds of the paper
- **Tone:** five tonal steps, weighted to the middle greys
- **Layering:** two kinds of pass, grey arc then black masses; readable at right, buried at left
- **Edges:** crisp at the black masses, streaked and broken along the arc, soft at the crest
- **Feibai:** present, through the arc's lower curve and its descending stroke at upper left
- **Open paper:** a bowl of empty paper above the arc, top centre
- **Chance marks:** bloom halo at the arc's crest; flung spatter at centre; pale ringed drops lower right
- **Frame:** ink runs off the left and bottom edges; top centre and right edge stay mostly open

A grey stroke falls from the upper left, bottoms out along the lower edge and climbs to a dark crest at the upper right. That long swing holds a bowl of empty paper above it, and a black mass anchors each end.

The arc is where the sheet comes alive. Through its lower curve the hairs parted at speed and left long parallel streaks of bare paper, and inside a single pass the grey steps from near white to charcoal. Raw, thickened paper grips a drying brush and keeps every split. The tone is made by the stroke itself, never laid over it. As the arc rises, the streaks tighten into a dark, rippled grain, and at the crest wet ink met fast paper and softened into a halo.

The ends are weaker. At the left the black gathers in lobes and clots, nearly uniform inside, and it buries the grey beneath. The round blot right of centre is a lump without a shape, and the far right fills with rival blots and scattered drops.

Still, the arc spans the full width and ties both ends to it. One fine, sure passage, held between two heavy ends that never match it.

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](https://peteryuill.art/method).

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_308]

![T_308, tone-stretched]

![T_308, classed by brightness]

68% of the sheet carries ink

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: 0.047 (under 0.045 reads as flat).

FIVE READS

## Five reads, one answer.

Each quality placed on its ladder by each read, and the mean the engine keeps.

READ 1 READ 2 READ 3 READ 4 READ 5 MEAN

Form 2 BUILT 2 BUILT 2 BUILT 2 BUILT 2 BUILT 2.0

Tonal depth 2 MODELLED 2 MODELLED 2 MODELLED 2 MODELLED 2 MODELLED 2.0

Layering 2 LEGIBLE 2 LEGIBLE 2 LEGIBLE 2 LEGIBLE 2 LEGIBLE 2.0

Composition 2 WORKING 2 WORKING 2 WORKING 2 WORKING 2 WORKING 2.0

Material and surface 2 SOUND 2 SOUND 2 SOUND 2 SOUND 2 SOUND 2.0

### READ 1, IN ITS OWN WORDS

“An ordinary gestural sheet close to R2. The sweeping dry-brush arc gives flow and modelled greys, but the left dark mass and the right blob are bulky and fairly flat. One soft bleed sits near the top right.”

Form · BUILT

The central swinging arc is fluent, with its outline following the stroke. The left dark mass is bulky and lobed, and the right-centre blob is a lump.

WEAKEST Right-centre round dark blob, lumpy and unshaped

STRONGEST Central grey arc following the brush's sweep

Tonal depth · MODELLED

The arc has streaked, stepped greys and the left mass shows some density shifts. The right blob and the top-right dark are fairly flat. Modulation 0.047 is barely above flat.

WEAKEST Right-centre dark blob, flat inside

STRONGEST Dry-brush graded greys in the central arc

Layering · LEGIBLE

Two or three passes: the grey arc goes down first, then the dark masses and spatter. The overlaps on the right stay legible, but the left dark mostly hides what lies beneath it.

WEAKEST Left dark mass covers the earlier grey

STRONGEST Dark marks laid over the grey arc on the right

Composition · WORKING

A U-shaped sweep carries the eye from left to right, and the paper above the arc is shaped. The left mass is congested and the right cluster is scattered.

WEAKEST Crowded, heavy left mass

STRONGEST Arc spanning the sheet, linking the left and right masses

Material and surface · SOUND

The ink is controlled and the dry-brush streaks are well used. There is a soft bleed halo at the top of the right arc, and pale cloudy spatter at the far left.

WEAKEST Diffuse halo at the dark spot, top centre-right

STRONGEST Dry-brush texture in the arc

FLAWS

## 5 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 5 distinct places, 10 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.

GEOMETRY

## Measured from the 16-bit master.

The previous engine (V22) measured this sheet's master file: 3 principal ink masses traced (cyan), 12 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 21 edge segments, 19% crisp, 48% soft or bloomed, 33% broken.

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](https://peteryuill.art/archive/works/T_308).

## Date

2026.05.14, day 137 of the Crucible Year, one of 9 paintings from that date (6 shown). 28 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](https://peteryuill.art/phases/P2) (working title).

Made after a calmer fortnight than 15 of the 18 dates before it.

THE YEAR

## T_308 among all 402

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

[Every painting from 2026.05.14](https://peteryuill.art/days/2026-05-14) · [This date in the year](https://peteryuill.art/year?follow=2026-05-14)

## Materials

- **Paper:** [Tanxi Thickened Grade A Special Jing Pi Small 6-Foot (raw)](https://peteryuill.art/papers/S3), Anhui Jingxian Tanxi Xuan Paper Art Products Co., Ltd., made 2015.11.19

- **Ink MB4:** [Yi De Ge Refined Ink Juice](https://peteryuill.art/inks/MB4), Yi De Ge (Beijing)
- **Ink MB5:** [Boku-Undo Genso](https://peteryuill.art/inks/MB5), Boku-Undo
- **Ink MB6:** [Yi De Ge Yun Tou Yan](https://peteryuill.art/inks/MB6), Yi De Ge (Beijing)

The sheet of paper was made 3829 days before this painting.

When each paper was in use

[S1](https://peteryuill.art/papers/S1)[S2](https://peteryuill.art/papers/S2)[S3](https://peteryuill.art/papers/S3)[S4](https://peteryuill.art/papers/S4)[S5](https://peteryuill.art/papers/S5)[S6](https://peteryuill.art/papers/S6)[S7](https://peteryuill.art/papers/S7)[S8](https://peteryuill.art/papers/S8)[S9](https://peteryuill.art/papers/S9)[S10](https://peteryuill.art/papers/S10)[S11](https://peteryuill.art/papers/S11)[S12](https://peteryuill.art/papers/S12)[S13](https://peteryuill.art/papers/S13)[S14](https://peteryuill.art/papers/S14)

Jan Feb Mar Apr May Jun Jul Aug Sep Oct

## Related

From the same date · 5

Same paper and inks, other dates · 8

[Pattern V23 material and surface rung rose from 2026-05-24 on (rank-biserial +0.78, n 259)](https://peteryuill.art/oracle)[Pattern The floor of V23 Form rung raised in the later half of the practice (+2.30 SD, n 259)](https://peteryuill.art/oracle)[Pattern 45% of the variation in V23 Composition rung lies between batches (29 batches, n 259); with the month held constant 26%](https://peteryuill.art/oracle)

[Previous T_305](https://peteryuill.art/works/T_305)
[Back to all works](https://peteryuill.art/works)
[Next T_309](https://peteryuill.art/works/T_309)

## Where next

[T_302 same date, with 4 others](https://peteryuill.art/works/T_302)[T_246 same paper and inks, 2026.04.21](https://peteryuill.art/works/T_246)[2026.05.14 9 paintings on this date](https://peteryuill.art/days/2026-05-14)[Paper S3 every work on it](https://peteryuill.art/papers/S3)
