Trainer how-to
The trainer drills the full CFOP library — Cross 22, F2L 41, OLL 57, PLL 21 — the way you actually turn, timing each rep by move completion rather than cube state. That’s what lets you repeat an algorithm many times without re-scrambling between reps.
1. Pick a set
Choose a phase (say OLL) and a subset — a single case, a group, or the whole set. Free accounts include the 2-look OLL and PLL sets; Pro unlocks all 141 cases.
2. Choose your algorithm
Each case shows an exact generated diagram — PLL arrows are computed from the real permutation, not drawn by hand — with one or more algorithms. Star the one you want to learn; the trainer drills your starred algorithm and remembers it per case.
3. Drill
The app sets up the case and starts watching. Execute the algorithm on your cube; the rep is timed from your first turn to the move that completes the case, then it immediately queues the next rep. Do twenty in a row without touching a scramble.
4. Read speed and accuracy
Every rep gets a time, and a wrong turn counts as a miss — so accuracy sits right next to your rep times. A fast average with shaky accuracy tells you the alg isn’t in muscle memory yet. Pro tracks these trends per case and per variant over time.