2♦ Opening - Multi provisional

Version 1: The Fool’s Inquiry

2♦
Weak Major (6-card, 5-10 HCP)
NV 1st/3rd position: Can be 5-card suit

Responses

2♥
Relay (Pass/Correct), for all weak hands
  • Opener with Hearts: Pass
  • Opener with Spades: Bid 2♠
2♠
The Fool’s Inquiry (Artificial, INV+)
  • 2NT : Minimum with Hearts
  • 3♣ : Minimum with Spades
  • 3♦ : Maximum with Hearts
  • 3♥ : Maximum with Spades
  • 3NT : Solid Suit (AKQxxx)
2NT
Puppet to 3♣
  • For weak minor signoffs (pass 3♣ or correct to 3♦)
  • Or Strong Balanced (Rebid 3NT)
3♣/♦
Natural, GF
3M
Preemptive (to play if it matches, pass/correct otherwise)
4♣
Transfer to ♥
  • Opener bids 4♥
4♦
Transfer to ♠
  • Opener bids 4♠

Version 2: Three-Range Multi (Problems.md style)

2♦
Weak Major (Three ranges: 5-6, 7-8, 9-10)

Responses

2♥
Relay (Pass/Correct)
2♠
Inquiry 1 (Suit + Range Ask)
  • 2NT : Hearts, Low Range (5-6)
  • 3♣ : Spades, Low Range (5-6)
  • 3♦ : Hearts, Medium Range (7-8)
  • 3♥ : Spades, Medium Range (7-8)
  • 3♠ : Hearts, High Range (9-10)
  • 3NT : Spades, High Range (9-10)
2NT
Inquiry 2 (General Feature Ask / Strong)
3m
Sign-off with own minor
3M
Invitational with other Major (Pass/Correct)
  • Opener passes if suit matches, converts if not (and likely passes the converted bid).
4m
Game Forcing with own minor
4M
Game Forcing with other Major (Pass/Correct to game)