v1.0 clean: deduped, filtered, categorized, proper configs - see README

README.md

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+---
+license: cc-by-4.0
+language:
+  - en
+pretty_name: Unsolved Math Clean
+tags:
+  - mathematics
+  - open-problems
+  - research
+  - benchmark
+  - reasoning
+  - latex
+  - clean
+task_categories:
+  - question-answering
+  - text-generation
+size_categories:
+  - 1K<n<10K
+configs:
+  - config_name: problems
+    default: true
+    data_files:
+      - split: train
+        path: data/problems/train.parquet
+      - split: validation
+        path: data/problems/validation.parquet
+      - split: test
+        path: data/problems/test.parquet
+  - config_name: open_problems_eval
+    data_files:
+      - split: train
+        path: data/open_problems_eval/train.parquet
+  - config_name: research_prompts
+    data_files:
+      - split: train
+        path: data/research_prompts/train.parquet
+      - split: validation
+        path: data/research_prompts/validation.parquet
+      - split: test
+        path: data/research_prompts/test.parquet
+---
+
+# 🧠 Unsolved Math — Clean
+
+<div align="center">
+  <img src="https://res.cloudinary.com/cmazqjs6/image/upload/racer_is_op_banner_branded_pu7zud.png" alt="RACER IS OP" width="100%">
+</div>
+
+<br>
+
+**8,626 curated open research problems** in mathematics and CS — including 122 Millennium Prize Problems — deduplicated, schema-flattened, and packaged as proper parquet configs with an eval-only benchmark view.
+
+> **A reasoning frontier dataset:** every problem here is *actually unsolved or partially solved* — ideal for honest capability probing instead of contaminated benchmarks.
+
+Clean derivative of [ulamai/UnsolvedMath](https://huggingface.co/datasets/ulamai/UnsolvedMath) (8,785 problems). License unchanged: **CC-BY-4.0**.
+
+## 🧹 Quality Pipeline
+
+| Step | Removed | Reason |
+|------|--------:|--------|
+| Raw input | 8,785 | Nested JSON |
+| **Duplicate titles** | 153 | Same problem listed twice |
+| **Empty statements** | 6 | No problem body |
+| **Final clean** | **8,626** | Flattened schema, deterministic splits |
+
+## 📊 Composition
+
+By status:
+
+| Status | Problems |
+|--------|---------:|
+| Open | 4,354 |
+| Partially solved | 3,580 |
+| Solved | 692 |
+
+By difficulty:
+
+| Level | Problems |
+|-------|---------:|
+| L1: Tractable | 908 |
+| L2: Intermediate | 516 |
+| L3: Advanced | 6,143 |
+| L4: Expert | 937 |
+| L5: Millennium Prize | 122 |
+
+## 📦 Configs
+
+| Config | Rows | Description |
+|--------|-----:|-------------|
+| `problems` *(default)* | 8,626 | Full metadata: statement, background, status, difficulty, category, provenance |
+| `open_problems_eval` | 4,354 | Open problems only — benchmark/eval view |
+| `research_prompts` | 8,626 | Instruction-formatted: "analyze this open problem, discuss partial results and obstacles" |
+
+## 🎯 Usage
+
+```python
+from datasets import load_dataset
+
+ds = load_dataset("saidutta69/unsolved-math-clean", "problems", split="train")
+
+# Honest eval: only truly open problems
+ev = load_dataset("saidutta69/unsolved-math-clean", "open_problems_eval")
+
+# Research-style SFT prompts
+rp = load_dataset("saidutta69/unsolved-math-clean", "research_prompts")
+print(rp["train"][0]["instruction"][:300])
+```
+
+## ⚠️ Notes
+
+- These are **unsolved problems** — there are no reference answers. Use for capability probing, calibration of hedging behavior, and research discussion; not for accuracy scoring.
+- LaTeX notation preserved verbatim.
+- Millennium-level problems are intentionally near-impossible; expect models to fail honestly.
+
+## 📜 Citation
+
+```bibtex
+@misc{unsolved-math-clean,
+  author = {Sai Dutta Abhishek Dash (clean); original by ulamai},
+  title = {Unsolved Math — Clean},
+  year = {2026},
+  publisher = {Hugging Face},
+  howpublished = {\url{https://huggingface.co/datasets/saidutta69/unsolved-math-clean}}
+}
+```

cleanup_report.json

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+{
+  "initial": 8785,
+  "clean": 8626,
+  "dup_ids": 0,
+  "dup_titles": 153,
+  "empty_statements": 6,
+  "unpublished_removed": 0,
+  "by_status": {
+    "open": 4354,
+    "partially_solved": 3580,
+    "solved": 692
+  },
+  "by_difficulty": {
+    "L3: Advanced": 6143,
+    "L4: Expert": 937,
+    "L1: Tractable": 908,
+    "L2: Intermediate": 516,
+    "L5: Millennium Prize": 122
+  }
+}

data/open_problems_eval/train.parquet

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+size 891455

data/problems/test.parquet

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data/problems/train.parquet

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data/problems/validation.parquet

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data/research_prompts/test.parquet

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+size 350119

data/research_prompts/train.parquet

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data/research_prompts/validation.parquet

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