Introduction to F2L
What is F2L?
- Solving first two layers simultaneously
- More efficient than layer-by-layer
- Reduces move count
- Improves solving speed
Prerequisites
- Solid cross-building skills
- Basic understanding of piece movement
- Pattern recognition ability
- Comfort with basic algorithms
Basic Concepts
Pair Recognition
- Find corner-edge pairs
- Identify relative positions
- Understand color relationships
- Track pieces during solving
Common Cases
- Paired pieces
- Separated pieces
- Misoriented pairs
- Hidden pairs
Basic Techniques
Pair Building
- Find corner and matching edge
- Join pieces efficiently
- Insert into correct slot
- Maintain cross integrity
Empty Slot Usage
- Working slot principle
- Temporary piece storage
- Avoiding piece interference
- Optimizing movements