Blindfolded speedcubing
Table of Contents
A course on solving a cube blindfolded, written for someone who already speedsolves sighted and is heading for 4BLD. Notation, slices, wide moves and finger tricks are assumed; the lessons spend their budget on tracing and memorisation instead. Edges first, corners later, on the M2 method — the route that reaches a real blindfolded solve in days and skips parity entirely along the way.
Everything below runs in the browser and stores its progress locally. Nothing is sent anywhere.
Trainers
- M2 setup trainer — cube in hand, four layers from moves-on-screen to unaided solve, with the scrambles aimed at whichever algorithms you are worst at.
- Speffz trainer — spaced repetition over all 48 stickers in both directions, on a clock-based schedule with three short sessions a day.
- Your progress — every attempt plotted, with recall time measured from prompt to first keystroke.
Lessons
- The letters, and your first trace — turning a scrambled cube into a short string of letters.
- The M2 shot — setup,
M2, undo: one idea covering sixteen of the twenty-two targets. - The M slice, and your first blind solve — six stickers left, one rule to go with them, and then the blindfold goes on.
Reference
- Speffz lettering — twenty-four stickers, twenty-four letters, one rule that generates all of them.
- M2 edge algorithm sheet — every target, its setup, and the one rule that catches people out.
- Glossary — the vocabulary, in one place.
- Resources — the external sources the course leans on, and what each is good for.
Behind the course
- Mission — the goal, the constraints, and the nine-stage route to a 4BLD solve.
- Working notes — the teaching decisions, why they were taken, and what the trainers are supposed to do.