Canary Club

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After the enemy opens other than 1N

The defensive system is a mixture of Ghestem two-suited bids and Kaplan structure and philosophy. The Kaplan part consists of natural good overcalls with a new suit forcing by advancer (i.e. the partner of the person taking the first action for the defensive pair). In addition most jump overcalls are preemptive in nature.

Special situations:

If we overcall 1 or 1 and the next hand makes a negative double, then the cheapest bid in the (so far) unbid major is a constructive and artificial raise of our suit.
Jump raises are preemptive in nature.
Cue bid of LHO's bid is a constructive limit raise
Cue bid of RHO's bid is natural.
A 4 or 4 call over a one level opening bid shows a strong Namyats 4 or 4 bid respectively
After the opponents open 2N or an artificial strong 1 or 2, we play “suction”
- Suit bids made with or without a jump show the next higher suit or the two lower suit;
- NT bids show two non-touching suits. In the case of a 2N opening bid, the double is used to show the two non-touching suits

The 1N overcall shows 15-18 HCP (11-14 HCP in balancing seat). The responses are the same as those over a 1N opening bid.

The 2-suit overcalls show 5 or 6 losers and go as follows:

Over any (natural) 1 suit bid:

Cue bid is top and bottom
2N is lowest two suits
3 shows the two highest suits, except when 1 is opened. Then the bid showing the two highest suits is 2.

After the enemy opens 1N

If the range of the NT is such that a 13 HCP hand is too weak to open 1N, it is a “strong” NT. We use DONT with Paradox responses to the double. What in heavens name is Paradox responses? Advancer with a constructive hand, skips suits that he would be willing to play at the next level, if that is doubler's suit.

If the range of the NT includes 13 or fewer HCP hands, it is a “weak” NT. We use Cappelletti structure in both seats with Paradox responses to the 2 overcall.