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 | 5NT |
X | XX | 6♣ | X |
XX | Pass | 6♦ | X |
6♥ | X | Pass | Pass |
XX | Pass | 6♠ | 7♣ |
X | Pass | Pass | XX |
Pass | Pass | 7♦ | Pass |
Pass | 7♥ | Pass | Pass |
X | Pass | 7♠ | Pass |
Pass | X | XX | Pass |
Pass | Pass | ? |