🔤 Blindfold Cubing Lettering System
Interactive demonstration of the Speffz notation system
Interactive Cube with Letters
This interactive cube demonstrates the lettering system used in blindfold cubing. Each sticker position on the cube is assigned a letter according to the Speffz notation system.
Understanding the Lettering System
- Edges use lowercase letters (a-x) - 24 edge stickers total
- Corners use uppercase letters (A-X) - 24 corner stickers total
- The buffer position for edges is b* (UR position)
- The buffer position for corners is A* (UBL position)
- Each piece has a specific letter assigned to help you track and memorize piece movements during blindfold solving
Complete Lettering Diagram
Below is a visual reference showing all letter positions on the cube:
