3x3 Speedcubing: The Ultimate Limits Forecast
History · Methods · Hardware · Math · Biomech · Top Cubers · Training · Statistics — toward a single & average forecast.
F2L Lookahead — The Real Bottleneck
Lookahead = executing pair N while eyes track pair N+1. Deliberately slow execution; total time drops. Zemdegs CubeSkills splits into 3 stages:
- Spotting: pause, find with eyes (beginner/intermediate).
- Tracking: eyes follow during turns (sub-12+).
- Knowing: predict location no-look (sub-8 elite).
3 lookahead failure modes: lucky scrambles, multislotting, pseudoslotting.