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The Extended Weak Two 2S Opening bid is a opening bid for 2 types of hands. They are:

  1. Weak-Two in ♠ 5-11 HCP. (the most frequent)
  2. A weak 2-suiter in ♠ and a minor (♣ or ♦): 55+, 5-11 HCP

Notes:

  • This Extended Weak Two 2S Opening bid is alertable [!]
  • The explanation to opponent should be something like this: “It is a Natural Weak opening with at least 5 card ♠. If it is only 5 cards, it may have 5-cards in minor. But if it is a 6-cards suit, it is just a normal Weak Two”

Responder’s Bid:

  • 2♠ – ?
    – 2NT : [!] Forcing Bid. The only forcing bid.
    – 3♣ : Sign off. To play.
    – 3♦ : Sign off. To play.
    – 3♥ : Sign off. To play.
    – 3♠ : Splinter/cuebid – ask to start cue-bidding
    – 3NT : Sign off. To play.
    – 4♣ : Splinter/cuebid – ask to start cue-bidding
    – 4♦ : Splinter/cuebid – ask to start cue-bidding
    – 4♥ : Sign off. To play.
    – 4♠ : Sign off. To play.
    – 4NT : General Blackwood (4 Aces key card)
    – 5♣ : Sign off. To play.
    – 5♦ : Sign off. To play.

Opener’s Rebid:

  • 2♠ – 2NT (Forcing Bid)
    3♣ : 2-suiter with 5+♣
    3♦ : 2-suiter with 5+♦
    3♥ : Not used
    3♠ : Minimum with 6-cards ♠
    3NT : Maximum with good 6-card ♠ e.g: AKJxxx
    4♣ : Strong distributional, slam interest, 2-suiter with 5+♣.
    4♦ : Strong distributional, slam interest, 2-suiter with 5+♦
Visualization Aid: Typical Weak Two 2H 5-11HCP:
♠Axxxxx
KJx
xx
xx
8HCP, ~8 losers
Visualization Aid: Typical Weak 2-suiter hand:
♠ KJxxx
♦/♣ KJxxx
xx
x
8-HCP, ~7 losers

Subsequent Bid

The subsequent bidding after the inquiry above will be limited to cue-bidding, Roman Key Card bid, Exclusion key card and Grand slam force.

Defensive Bidding

  • Upon opponent’s double: all system on (i.e ignore the Double).
  • Responder can use RDBL as inquiry/forcing bid. In this case opener can 2NT instead of 3NT to show maksimum with 6-cards ♠
  • All double from responder is a penalty double (there is no take out)

Competitive Bidding

If the opponent is using this opening, use these below as your competitive means:

  • Use DOUBLE as “takeout double”
  • Overcalls are Natural.
  • Leaping Michael convention