Measuring instruments

Tools that take a reading from games already played or from positions: where the points come from, which discs can never clear, how fast discs must clear to keep up, and what a perfect-information solver would have done.

Harnesses and benchmarks

The fixed scaffolding that runs policies side by side under one set of conditions, and the checks on the benchmark itself.

Model probes

Small experiments that ask what a network of a given size can hold, before a training run is paid for.