---
title: "T_315, full record | Crucible Year"
url: https://peteryuill.art/archive/works/T_315
description: "Crucible Year: a continuous year of sumi ink painting on paper by Peter Yuill, begun 29 December 2025."
source: generated from the Crucible Year master database
---

Archive · full record

# T_315

[The work as shown](https://peteryuill.art/works/T_315). Every value below comes from vae.db, the master database of the Crucible Year.

## Recorded

- **Date:** 2026.05.24, day 147
- **Size:** 97 × 180 cm
- **Paper:** S10, Red Star Mo She Imitation Antique Chu bark, Exhibition Edition
- **Inks:** MB4, MB5, MB6
- **Phase:** P3 The Floor Rises

- **Shown on the site:** yes (V23 rating of 5.0 or higher)

- **Early storage triage:** SA: save, archive (Peter's early system, since retired)

## Measured · V23 (v23.8)

- **V23 rating:** 5.8
- **Form:** 2
- **Tonal depth:** 1.6
- **Layering:** 2.2
- **Composition:** 2.2
- **Material and surface:** 2
- **Ink cover:** 69%
- **Dark share:** 60%
- **Tonal steps:** 5

- **Flaws named by the reads:** other 5, water stain 6

The V23 rating runs from 1 to 9, with 5 the middle of this body of work. It is the engine's reading, and the reference the archive is measured against.

## Peter's own rating

- **Rating:** 8

Peter's rating is his own eye, not the engine's, and he never gives a 10.

> “There is always something that can be done better.”

Peter Yuill · 2026.07.02

## Older engine

- **V10C:** 9

From an earlier engine (V10C). Its scale differs from V23's, so it is only ever compared with other readings by the same engine.

## How the number was made

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_315]

![T_315, tone-stretched]

![T_315, classed by brightness]

69% 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: 0.040 (under 0.045 reads as flat).

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 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 1 THIN 1 THIN 2 MODELLED 2 MODELLED 2 MODELLED 1.6

Layering 2 LEGIBLE 2 LEGIBLE 2 LEGIBLE 2 LEGIBLE 3 ORDERED 2.2

Composition 2 WORKING 2 WORKING 3 COMMANDING 2 WORKING 2 WORKING 2.2

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

### READ 1, IN ITS OWN WORDS

“This sheet takes up R3's radiating-arc motif but has flatter black cores, stiffer slab blocks at the bottom left and a less resolved layering. The pale centre and the splattered fan tops hold it near ordinary.”

Form · BUILT

Both fans are coherent arc forms with holding walls; the right fan's curved strokes follow the brush, but the left fan's lower rectangle and squared slabs are stiff.

WEAKEST Blunt rectangular block at bottom left of left fan

STRONGEST Right fan's curved bands following the arc of travel

Tonal depth · THIN

Dark modulation 0.040, below the flat threshold; the black cores of both fans are uniform inside, and tone changes mainly at band edges. Greys live only in the centre.

WEAKEST Flat black interior of left fan upper block

STRONGEST Pale grey arc banding in central circle

Layering · LEGIBLE

The grey wedges stepping toward the centre and the pale circle overlap legibly; in the black cores later passes mostly cover the earlier ones.

WEAKEST Dark fan cores where later black covers earlier passes

STRONGEST Translucent grey overlaps in the central circle and left fan

Composition · WORKING

The two fans converge on a pale circular centre, and the shaped empty paper above gives direction; the bottom corners are dense and the two halves sit as matching blocks.

WEAKEST Heavy, near-symmetrical dark masses crowding the lower corners

STRONGEST Central pale circle linking the two fans

Material and surface · SOUND

Ink is controlled, with deliberate splatter at the top edges. The paper is yellowed overall and the centre has slightly cloudy washes, but there is no stain in the dark masses.

WEAKEST Cloudy grey washes in the central circle

STRONGEST Dry-brush splatter and bristle edges on fan tops

FLAWS

## 3 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 3 distinct places, 11 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: 6 principal ink masses traced (cyan), 3 enclosed voids at true size in their grid cells (amber), the main gesture from start to end (red). Of 31 edge segments, 29% crisp, 58% soft or bloomed, 13% broken.

RULE 1 Two tonal steps or fewer

Tonal depth held at rung 1. 5 steps: not applied

RULE 2 A major flaw

Material held at rung 1. Mild waves in the unmounted paper are never a flaw. none named

RULE 3 Any quality below 0.5

The rating cannot exceed 4. lowest 1.6

RULE 4 At least two valid reads

A read that breaks the reply format is discarded. 5 of 5 valid

THE ARITHMETIC

## V23 rating 5.8.

Engine v23.8, 5 reads. Fixed arithmetic, the same for every painting; the constants were set on 24 randomly chosen paintings so the median sheet scores 5. The scale is relative to this archive, not to painting in general, and a difference of less than half a point between two paintings is noise.

MEAN RUNG 2.00 (2.0 + 1.6 + 2.2 + 2.2 + 2.0) ÷ 5
→

RAW 5.00 1 + 2 × 2.00
→

RATING 5.8 5 + 2.086 × (5.00 − 4.60)

## Where next

[Every record the full archive](https://peteryuill.art/archive)[2026.05.24 every painting from this date](https://peteryuill.art/days/2026-05-24)
