Page 121 - 2 over 1 Game Force

Chapter 6: Slam Bidding. 121

Over Interference DOP1-ROP1 or DEPO

If the opponent interferes at five levels with a bid,

apply DOP1

• Pass = one or four key cards
• Double = zero or three key cards

st
• 1 step = two or five key cards without queen
nd
• 2 step = two or five key cards with queen
If the opponent interferes at five level with a double,

apply ROP1

• Pass = one or four key cards
• XX = zero or three key cards

st
• 1 step = two or five key cards without queen
nd
• 2 step = two or five key cards with queen
If the opponent interferes with a higher rank than our agreed upon suit,

apply DEPO

• Double = even key cards (zero, two, four)

• Pass = odd key card (one, three, five)

Example: 1♥ -(P)-4NT-5♠ use DEPO due to ♠ higher rank than ♥

1♥ -(P)-4NT-5♣ use DOP1 due to ♣ lower rank than ♥

2 over 1 Game Force | 2D Strong Balanced & Gazzilli