Spiral Raises

Spiral raises module is used when there is a major fit at (or a step below) 2M, and an 8-card fit is not certain. Spiral raises are applied in the following sequences:

• 1M - 2M (Simple raises)
• 1♥ - 2♦ / 1♠ - 2♥ (Transfer raises)
• In competition where only 4-3 fit is established
• Any modes of the above sequence

Since an 8-card fit is not established, we have the following continuations.

Simple Raises

… 2M (Simple Raise)

• P
  Less than inv. Others promise inv+ values
• 2N
  6+M max
• 3m
  4=M 5+m (canape). Max
• oM
  5+M 4+oM. Max
• 3M
  Blocking
• 4m
  4=M (6)7+m. Too great for 3m

Transfer Raises

… 1♥ - 2♦ or … 1♠ - 2♥

• 2M
  Min NF

  • P
    To play
  • 2♠
    5=♠ 4=♥ Inv
  • 2N
    Bal inv. 3=M
  • 3m
    5+m. NF
  • 3M
    (4)5=M inv
  • 3oM
    4=oM 3=M COG
  • 3N
    3=M COG
• 2♠
  (After ♥) 5+♥ 4+♠. F1
• 2N
  4441 4=oM. GF
• 3m
  5+m. GF
• 3♥
  (After ♠) 5+♠ 4+♥. F1
• 3M
  Art. 4441 short oM. GF.
• 3N / 4M
  To play