Module dataset 

Shared, versioned position dataset for cross-engine benchmarks.

Port of benchmarks/dataset.py. Artifacts are JSON with a sha256 checksum over the canonical (sorted-key, compact-separator) encoding of the payload minus the checksum field — byte-compatible with the Python implementation, so datasets interoperate across languages. RNG streams differ from CPython, so generate with the same seed produces a different but equally valid dataset; the committed artifact is the shared one.

Constants

GENERATOR

PHASES

Phase buckets by pieces placed (== plies from the empty board).

SCHEMA_VERSION

Functions

checksum

sha256 over canonical JSON excluding the checksum field.

generate

Generate a deterministic benchmark dataset for requested phase counts.

load

Load a dataset artifact and verify its checksum.

phase_of

Return the phase bucket for a piece count.

save

Write a checksum-bearing JSON dataset artifact and return its checksum.