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