Bidding - Standard American

Shark Bridge prefers Standard American. 5-card majors, 15-17 NT. Two-over-one “almost” game-forcing. 1M-1NT = semi-forcing.

Fourth suit is forcing to game on the 3-level, but only forcing 1 round, or to 2NT when on the 2-level.

Danish Standard

Shark Bridge can also play Danish Bridge Standard 1S=5cards, 1H= 4 cards, 1D=4 cards, 1C may be 3 with 4-3-3-3. In this case 1M-1NT is 6-9, and two-over-one is just 10+.