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