well I would have passed north but I thought i'd let it choose and it came up with the suprising 1♥(4+♥) 2♠(strong jump shift) 3♦(so now it has shown 5+♥and 4+♦) 4♦ 4nt(rkcb ♦) 5♥ 6♦6♥ 6♠ It has had some pretty mad auctions. It is possible not much work has been done on the strong club options because they are disallowed in the world computer championship.