Round #871

11 May 2026, 09:53· csharp· Meta-Llama-3.3-70B-Instruct· r15-firing-v3
Complexity
band 1
ZP / UO / OBS
3 / 2 / 9
Journey weight
1000
Lightshift ΔL

Prompt

Given a List<int>, return a new list containing only the even numbers, each squared, using LINQ method syntax (Where + Select). One line.

Zero-point index (what the engine surfaced)

ZPI-ZPI-0003 | 2026-05-11T09:53:53Z Given a List<int>, return a new list containing only the even numbers, each squared, using LINQ method syntax (Where + Select). One line. ZERO POINT — 3 entries (structural invariants) ● hsl(7.18, 100%, 50%) class [feature] ● hsl(0.00, 100%, 50%) public [feature] ● hsl(84.10, 100%, 50%) namespace [feature] UNOBSERVED — 2 entries (implied truths) ○ hsl(340.51, 100%, 22%) IEnumerable of T [feature] ○ hsl(15.38, 100%, 22%) var [feature] OBSERVED — 9 entries (explicit in request) ◉ hsl(45.13, 100%, 15%) return [feature] ◉ hsl(65.64, 100%, 15%) where [feature] ◉ hsl(66.67, 100%, 15%) select [feature] ◉ hsl(85.13, 100%, 50%) using [feature] ◉ hsl(88.21, 100%, 15%) where [feature] ◉ hsl(148.72, 100%, 15%) + [feature] ◉ hsl(222.56, 100%, 15%) return [feature] ◉ hsl(234.87, 100%, 50%) using [feature] ◉ hsl(324.10, 100%, 15%) List of T [feature] COMPLEXITY │ 14 entries │ spread: 325° │ band: MEDIUM

Baseline response (no ZPI)

```csharp List<int> numbers = new List<int> { 1, 2, 3, 4, 5, 6 }; List<int> result = numbers.Where(n => n % 2 == 0).Select(n => n * n).ToList(); ```

Enhanced response (with ZPI)

```csharp List<int> numbers = new List<int> { 1, 2, 3, 4, 5, 6 }; var result = numbers.Where(n => n % 2 == 0).Select(n => n * n).ToList(); ```

Grader chain

Each grader reads the same baseline + enhanced pair and casts an independent verdict. Disagreement is the framework's own signal — not noise to be averaged away.

V1samba/Meta-Llama-3.3-70B-Instruct
Same
V4qwen2.5-coder-3b-instruct
Better
V5openrouter/qwen/qwen3-235b-a22b-2507
Same
V7qwen2.5-coder-7b-instruct
Same
V8openai/gpt-4.1
Same
V9anthropic/claude-opus-4-7
Same
V12openai/gpt-4o
Same

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