{
  "seed": 20261015,
  "algorithm": "Python random.Random(seed).sample without replacement; sort by ID",
  "population": 100,
  "sample_size": 20,
  "source_sha256": "d03843d98fa767ba5b38d4680f2ca9e50c50b43ee4fdefb0a6cef5818d26a4ff",
  "ids": [
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    "Q028",
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    "Q051",
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    "Q074",
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  "difficulty_counts": {
    "easy": 4,
    "medium": 4,
    "hard": 5,
    "very_hard": 7
  }
}