Principle - Landy defense

a 2♣ bid after a (/1NT) or (/1♣♦) opening promises a (4)5+4+ in ♥♠.
Strength = 12-14 after (/1NT), and 7-11 after (/1♣♦)

Examples

(/1♣♦1NT)

- 2♣: 5+4+♥♠

- 2♦: which one?, F

- 2♥: 5+♥4+♠

- 2♠: 5+♠4-♥

- anything else: NF

Principle - Ghestem variant

Since 2♣ in defense is now Landy after (/1♣♦), we need another bid than the cuebid for the Ghestem (12+, 5+5+) in the extreme suits.We will use 2♦ for both of the situations (/1♣) and (/1♦)

(/1♣)

- 1♦: 5+♦, (6)8+

- 2♣: Landy

- 2♦: 5+♦5+♠, 12+ (new Ghestem for the extreme suits)

- 2NT: 5+♦5+♥

- 3♣: 5+♥5+♠

(/1♦)

- 2♣: Landy

- 2♦: 5+♣5+♠, 12+

- 2NT: 5+♣5+♥

- 3♣: 5+♣, 12+HP (the new ♣ follow bid)

- 3♦: 5+♥5+♠ (new Ghestem for the highest suits)