Safari engine experiment

Local synthetic positions only. No saved games, telemetry, uploads, browser profile, or external requests. Results stay on this screen. This is not the public chess application or a Safari compatibility certificate.

Threaded modes need cross-origin isolation and SharedArrayBuffer. Non-pthread is experimental; it uses one outer Worker and no pthread Workers. The four existing numeric profiles rotate during a run.

Backgrounding or leaving this page stops the run. Return and explicitly Retry. Repeated search counts are synthetic workloads, not a prediction of the number of moves before a Safari failure.

GPLv3 · Engine runtime notices. Modified engine experiments: 19 September 2026. Local preferred source and build instructions are in experiments/m26-safari; no public distribution is authorized.