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PLL Principles

Understanding PLL​

Basic Concept​

  • Permuting correctly oriented pieces
  • Final step in solving the cube
  • 21 standard cases
  • Pattern-based recognition

Key Components​

  1. Corner permutation
  2. Edge permutation
  3. Headlights recognition
  4. Block recognition

Recognition System​

Block Detection​

  • Identify solved blocks
  • Find headlights
  • Spot opposite colors
  • Notice patterns

Common Patterns​

  1. Adjacent corner swap
  2. Diagonal corner swap
  3. Three-edge cycle
  4. Double edge swap

Advanced Concepts​

AUF (Adjust U Face)​

  • Pre-AUF recognition
  • Post-AUF prediction
  • Optimal AUF choice
  • Two-sided recognition

Pattern Relationships​

  1. Mirror cases
  2. Inverse algorithms
  3. Related cases
  4. Alternative solutions