# The Multivac — Evaluation Report

**Evaluation ID:** EVAL-20260402-162402
**Date:** Apr 02, 2026
**Category:** reasoning
**Question ID:** REASON-011

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## Question

A judge tells a prisoner: 'You will be hanged one day next week, but you will not be able to predict the day.' The prisoner reasons that he can't be hanged on Friday (he'd know by Thursday night), then can't be hanged Thursday (he'd know by Wednesday night), and so on, concluding he can't be hanged at all. But on Wednesday, he's hanged — and is genuinely surprised. What went wrong with his reasoning? Provide a rigorous logical analysis.

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## Winner

No winner determined.

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## Rankings

| Rank | Model | Provider | Avg Score | Judgments |
|------|-------|----------|-----------|----------|

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## 10×10 Judgment Matrix

Rows = Judge, Columns = Respondent. Self-judgments excluded (—).

| Judge ↓ / Resp → |
|---|

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## Methodology

- **10×10 Blind Peer Matrix:** All models answer the same question, then all models judge all responses.
- **5 Criteria:** Correctness, completeness, clarity, depth, usefulness (each scored 1–10).
- **Self-judgments excluded:** Models do not judge their own responses.
- **Weighted Score:** Composite of all 5 criteria.

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## Citation

The Multivac (2026). Blind Peer Evaluation: REASON-011. app.themultivac.com

## License

Open data. Free to use, share, and build upon. Please cite The Multivac when using this data.

Download raw JSON: https://app.themultivac.com/api/evaluations/EVAL-20260402-162402/results
Full dataset: https://app.themultivac.com/dashboard/export