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Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code:   StreamingRowsError
Exception:    CastError
Message:      Couldn't cast
events: list<item: struct<event: string, goal_title: string, initial_messages: list<item: struct<content: st (... 4612 chars omitted)
  child 0, item: struct<event: string, goal_title: string, initial_messages: list<item: struct<content: string, role: (... 4600 chars omitted)
      child 0, event: string
      child 1, goal_title: string
      child 2, initial_messages: list<item: struct<content: string, role: string>>
          child 0, item: struct<content: string, role: string>
              child 0, content: string
              child 1, role: string
      child 3, model: string
      child 4, pair: struct<benchmark_id: string, difficulty: string, end_title: string, human: struct<attempts: int64, l (... 425 chars omitted)
          child 0, benchmark_id: string
          child 1, difficulty: string
          child 2, end_title: string
          child 3, human: struct<attempts: int64, losses: int64, shortest_winning_witness: list<item: string>, successful_hops (... 267 chars omitted)
              child 0, attempts: int64
              child 1, losses: int64
              child 2, shortest_winning_witness: list<item: string>
                  child 0, item: string
              child 3, successful_hops: struct<max: int64, mean: double, median: int64, min: int64>
                  child 0, max: int64
                  child 1, mean: double
                  child 2, median: int64
                  child 3, min: int64
              child 4, successful_points: struct<max: int
...
tring
  child 3, steps.parquet: struct<bytes: int64, rows: int64, sha256: string>
      child 0, bytes: int64
      child 1, rows: int64
      child 2, sha256: string
completeness: struct<complete: bool, completed_rollouts: int64, expected_models: int64, expected_pairs: int64, exp (... 500 chars omitted)
  child 0, complete: bool
  child 1, completed_rollouts: int64
  child 2, expected_models: int64
  child 3, expected_pairs: int64
  child 4, expected_rollouts: int64
  child 5, incomplete_rollouts: int64
  child 6, indexed_rollouts: int64
  child 7, missing_cells: list<item: null>
      child 0, item: null
  child 8, missing_rollouts: int64
  child 9, model_count: int64
  child 10, model_pair_counts: struct<Qwen/Qwen3.5-0.8B: int64, Qwen/Qwen3.5-27B: int64, Qwen/Qwen3.5-2B: int64, Qwen/Qwen3.5-4B: i (... 29 chars omitted)
      child 0, Qwen/Qwen3.5-0.8B: int64
      child 1, Qwen/Qwen3.5-27B: int64
      child 2, Qwen/Qwen3.5-2B: int64
      child 3, Qwen/Qwen3.5-4B: int64
      child 4, Qwen/Qwen3.5-9B: int64
  child 11, model_rollout_counts: struct<Qwen/Qwen3.5-0.8B: int64, Qwen/Qwen3.5-27B: int64, Qwen/Qwen3.5-2B: int64, Qwen/Qwen3.5-4B: i (... 29 chars omitted)
      child 0, Qwen/Qwen3.5-0.8B: int64
      child 1, Qwen/Qwen3.5-27B: int64
      child 2, Qwen/Qwen3.5-2B: int64
      child 3, Qwen/Qwen3.5-4B: int64
      child 4, Qwen/Qwen3.5-9B: int64
  child 12, pair_count: int64
  child 13, samples_per_pair: int64
source_files: list<item: string>
  child 0, item: string
to
{'completeness': {'complete': Value('bool'), 'completed_rollouts': Value('int64'), 'expected_models': Value('int64'), 'expected_pairs': Value('int64'), 'expected_rollouts': Value('int64'), 'incomplete_rollouts': Value('int64'), 'indexed_rollouts': Value('int64'), 'missing_cells': List(Value('null')), 'missing_rollouts': Value('int64'), 'model_count': Value('int64'), 'model_pair_counts': {'Qwen/Qwen3.5-0.8B': Value('int64'), 'Qwen/Qwen3.5-27B': Value('int64'), 'Qwen/Qwen3.5-2B': Value('int64'), 'Qwen/Qwen3.5-4B': Value('int64'), 'Qwen/Qwen3.5-9B': Value('int64')}, 'model_rollout_counts': {'Qwen/Qwen3.5-0.8B': Value('int64'), 'Qwen/Qwen3.5-27B': Value('int64'), 'Qwen/Qwen3.5-2B': Value('int64'), 'Qwen/Qwen3.5-4B': Value('int64'), 'Qwen/Qwen3.5-9B': Value('int64')}, 'pair_count': Value('int64'), 'samples_per_pair': Value('int64')}, 'created_at_utc': Value('timestamp[s]'), 'detail': {'count': Value('int64'), 'format': Value('string'), 'path_template': Value('string')}, 'schema_version': Value('string'), 'source_files': List(Value('string')), 'tables': {'pairs.parquet': {'bytes': Value('int64'), 'rows': Value('int64'), 'sha256': Value('string')}, 'rollouts.parquet': {'bytes': Value('int64'), 'rows': Value('int64'), 'sha256': Value('string')}, 'runs.parquet': {'bytes': Value('int64'), 'rows': Value('int64'), 'sha256': Value('string')}, 'steps.parquet': {'bytes': Value('int64'), 'rows': Value('int64'), 'sha256': Value('string')}}, 'web_index': {'format': Value('string'), 'path': Value('string')}}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/utils.py", line 149, in get_rows_or_raise
                  return get_rows(
                      dataset=dataset,
                  ...<4 lines>...
                      column_names=column_names,
                  )
                File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
                  return func(*args, **kwargs)
                File "/src/services/worker/src/worker/utils.py", line 129, in get_rows
                  rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
                File "/src/services/worker/src/worker/utils.py", line 489, in safe_iter
                  yield from ds.decode(False) if ds.features else ds
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2818, in __iter__
                  for key, example in ex_iterable:
                                      ^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2355, in __iter__
                  for key, pa_table in self._iter_arrow():
                                       ~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2380, in _iter_arrow
                  for key, pa_table in self.ex_iterable._iter_arrow():
                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 536, in _iter_arrow
                  for key, pa_table in iterator:
                                       ^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 419, in _iter_arrow
                  for key, pa_table in self.generate_tables_fn(**gen_kwags):
                                       ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2369, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2297, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              events: list<item: struct<event: string, goal_title: string, initial_messages: list<item: struct<content: st (... 4612 chars omitted)
                child 0, item: struct<event: string, goal_title: string, initial_messages: list<item: struct<content: string, role: (... 4600 chars omitted)
                    child 0, event: string
                    child 1, goal_title: string
                    child 2, initial_messages: list<item: struct<content: string, role: string>>
                        child 0, item: struct<content: string, role: string>
                            child 0, content: string
                            child 1, role: string
                    child 3, model: string
                    child 4, pair: struct<benchmark_id: string, difficulty: string, end_title: string, human: struct<attempts: int64, l (... 425 chars omitted)
                        child 0, benchmark_id: string
                        child 1, difficulty: string
                        child 2, end_title: string
                        child 3, human: struct<attempts: int64, losses: int64, shortest_winning_witness: list<item: string>, successful_hops (... 267 chars omitted)
                            child 0, attempts: int64
                            child 1, losses: int64
                            child 2, shortest_winning_witness: list<item: string>
                                child 0, item: string
                            child 3, successful_hops: struct<max: int64, mean: double, median: int64, min: int64>
                                child 0, max: int64
                                child 1, mean: double
                                child 2, median: int64
                                child 3, min: int64
                            child 4, successful_points: struct<max: int
              ...
              tring
                child 3, steps.parquet: struct<bytes: int64, rows: int64, sha256: string>
                    child 0, bytes: int64
                    child 1, rows: int64
                    child 2, sha256: string
              completeness: struct<complete: bool, completed_rollouts: int64, expected_models: int64, expected_pairs: int64, exp (... 500 chars omitted)
                child 0, complete: bool
                child 1, completed_rollouts: int64
                child 2, expected_models: int64
                child 3, expected_pairs: int64
                child 4, expected_rollouts: int64
                child 5, incomplete_rollouts: int64
                child 6, indexed_rollouts: int64
                child 7, missing_cells: list<item: null>
                    child 0, item: null
                child 8, missing_rollouts: int64
                child 9, model_count: int64
                child 10, model_pair_counts: struct<Qwen/Qwen3.5-0.8B: int64, Qwen/Qwen3.5-27B: int64, Qwen/Qwen3.5-2B: int64, Qwen/Qwen3.5-4B: i (... 29 chars omitted)
                    child 0, Qwen/Qwen3.5-0.8B: int64
                    child 1, Qwen/Qwen3.5-27B: int64
                    child 2, Qwen/Qwen3.5-2B: int64
                    child 3, Qwen/Qwen3.5-4B: int64
                    child 4, Qwen/Qwen3.5-9B: int64
                child 11, model_rollout_counts: struct<Qwen/Qwen3.5-0.8B: int64, Qwen/Qwen3.5-27B: int64, Qwen/Qwen3.5-2B: int64, Qwen/Qwen3.5-4B: i (... 29 chars omitted)
                    child 0, Qwen/Qwen3.5-0.8B: int64
                    child 1, Qwen/Qwen3.5-27B: int64
                    child 2, Qwen/Qwen3.5-2B: int64
                    child 3, Qwen/Qwen3.5-4B: int64
                    child 4, Qwen/Qwen3.5-9B: int64
                child 12, pair_count: int64
                child 13, samples_per_pair: int64
              source_files: list<item: string>
                child 0, item: string
              to
              {'completeness': {'complete': Value('bool'), 'completed_rollouts': Value('int64'), 'expected_models': Value('int64'), 'expected_pairs': Value('int64'), 'expected_rollouts': Value('int64'), 'incomplete_rollouts': Value('int64'), 'indexed_rollouts': Value('int64'), 'missing_cells': List(Value('null')), 'missing_rollouts': Value('int64'), 'model_count': Value('int64'), 'model_pair_counts': {'Qwen/Qwen3.5-0.8B': Value('int64'), 'Qwen/Qwen3.5-27B': Value('int64'), 'Qwen/Qwen3.5-2B': Value('int64'), 'Qwen/Qwen3.5-4B': Value('int64'), 'Qwen/Qwen3.5-9B': Value('int64')}, 'model_rollout_counts': {'Qwen/Qwen3.5-0.8B': Value('int64'), 'Qwen/Qwen3.5-27B': Value('int64'), 'Qwen/Qwen3.5-2B': Value('int64'), 'Qwen/Qwen3.5-4B': Value('int64'), 'Qwen/Qwen3.5-9B': Value('int64')}, 'pair_count': Value('int64'), 'samples_per_pair': Value('int64')}, 'created_at_utc': Value('timestamp[s]'), 'detail': {'count': Value('int64'), 'format': Value('string'), 'path_template': Value('string')}, 'schema_version': Value('string'), 'source_files': List(Value('string')), 'tables': {'pairs.parquet': {'bytes': Value('int64'), 'rows': Value('int64'), 'sha256': Value('string')}, 'rollouts.parquet': {'bytes': Value('int64'), 'rows': Value('int64'), 'sha256': Value('string')}, 'runs.parquet': {'bytes': Value('int64'), 'rows': Value('int64'), 'sha256': Value('string')}, 'steps.parquet': {'bytes': Value('int64'), 'rows': Value('int64'), 'sha256': Value('string')}}, 'web_index': {'format': Value('string'), 'path': Value('string')}}
              because column names don't match

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WikiGame Qwen3.5 Rollouts

This is a complete export of logged WikiGame navigation rollouts. It contains pairs.parquet, runs.parquet, rollouts.parquet, and steps.parquet plus gzip-compressed exact journal details under details/. The static explorer loads the normalized table summaries from web/index.json.gz and fetches exact rollout details only when selected.

Completed rollouts: 8000 / 8000. Human difficulty, attempt counts, wins, win rate, successful-play summaries, and shortest observed winning paths are retained in pairs.parquet.

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