STENBERG

1H - 2NT = GF with 4+ support. 3C/D/S = Natural (3+ card), better than 7 losers. 3H = Minimum. 3NT = 18-19NT. 4C/D = Void. 4H = Void in spades. 1H - 2NT 3C/D - 3H = Singelton asking bid. 3NT = Mildly slaminvitational, asking for A/K cuebids. 1H - 2NT 3X - 3/4Y = Singelton. 4X = Singelton. NB: 1H - 2NT 3S - 3NT = Singelton asking bid. 1S - 2NT = GF with 4+ support. 3C/D/H = Natural (3+ card), better than 7 losers. 3S = Minimum. 3NT = 18-19NT. 4C/D = Void. 4H = Void and extra values. 4S = Void in hearts, minumum. 1S - 2NT 3C/D/H - 3S = Singelton asking bid. 3NT = Mildly slaminvitational, asking for A/K cuebids. 1S - 2NT 3X - 3/4Y = Singelton. 4X = Singelton. COMPETITIVE BIDDING If the enemy disturbes (bid/take-out double) after 1H/S: * Jump-raise is preemptive (very aggressive). * 2NT is (at least) invitational and almost as described above. Disturbing after 2NT: 1S - (Pass) - 2NT - (3X) Pass = "Normal opening", or searching for penalties. Dbl. = Singelton. 3Y = Natural, better than 7 losers. 3S = Completely minimum. 3NT = 18-19NT. 4Y = Without jump: natural, extra values. With jump: void. 4X = Void.