Core Elements (Must Support)

Basic Structural Elements

• Rings (R) - closed loops of stitches
  
• Chains (CH/C) - open sequences of stitches
  
• Split Rings (SR) - rings made with two threads
  
• Mock Rings (SCMR) - self-closing mock rings

Stitch Types

• Double Stitches (ds) - basic tatting stitch
  
• Picots (p, sp) - decorative loops, various sizes
  
• Joins (+, j, JP) - connections between elements

Advanced Features

• Multi-shuttle notation (1S, 2S) - coordinate multiple threads
  
• Repeat blocks (...) - efficient pattern repetition
  
• Work direction (RW) - explicit reverse work indicators