3BLD · Sticker Recognition · Adaptive

Master
Speffz.

Precision drilling for blindfold cubers. Every rep tracked, every weak sticker surfaced automatically.

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How it works

01

See the piece

A 3D-rendered edge or corner piece appears. The target sticker faces you.

02

Type the letter

Press the Speffz letter instantly — no clicking, pure keyboard response.

03

Adapt

Stickers you miss or answer slowly appear more often. Mastered stickers recede.

Features

  • Edges and corners — separate pools
  • Adaptive weighting — never wastes reps on what you know
  • Per-sticker accuracy, speed, and trend tracking
  • Heatmap showing mastered vs weak stickers at a glance
  • Fully customizable lettering scheme
  • All data local — no account, no server
  • Export and import your stats as JSON