North | East | South | West |
1♥ | 2♣ | 3♦ | Pass |
Pass | X | Pass | Pass |
4♦ | X | XX | Pass |
4NT | 5♣ | X | XX |
5♥ | Pass | Pass | X |
Pass | 5♠ | X | XX |
6♣ | Pass | 6♥ | Pass |
Pass | X | 6♠ | Pass |
Pass | X | 7♣ | Pass |
Pass | X | Pass | Pass |
XX | Pass | 7♦ | Pass |
Pass | X | Pass | Pass |
XX | 7♥ | X | Pass |
7♠ | Pass | Pass | 7NT |
X | XX | Pass | Pass |
Pass | ? |