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