Antispades Twos

• The 2 opening promises 5-10 HCP and either a 6-card club suit, or clubs and diamonds, or clubs and spades.
• The 2 opening promises 5-10 HCP and either a 6-card diamond suit, or diamonds and hearts, or diamonds and spades.
• The 2 opening promises 5-10 HCP and either a 6-card heart suit, or hearts and spades, or hearts and clubs.
• The 2 opening is artificial and very strong, promising either 23+ HCP balanced, or a hand of 16+ HCP and four losers or better.

  Responses

• Pass
• Raise opener's suit with 3+ card support and 7 losers or fewer.
• A pass-or-correct bid which is one step up from the opening — that is 2:2, 2:2, or 2:2.
• With a 15+ HCP hand, responder either bids the forcing 2NT Enquiry or, with 4+ spades after a 2 or 2 opening, the forcing 2 response.

  Defending against Antispades Twos

• Double shows 11+ points. The criteria for tolerance for the unbid suits become less stringent, the more points the doubler has.
• A Suit Overcall shows a good 6+ card suit and seven losers or better.
• The 2NT Overcall shows a two-suited hand — in any of the three unbid suits — with six losers or better.