1m (2m!) X 追殺
2H! C suit, FG
2S! D suit, FG
2N! 2 minors
3m 競叫
3M! STR 2 minors, FG, M short
3N S/O
4m PRE
1M (2M!) X 追殺
2S! fit, inv+ (while 1H-(2H!))
2N 1m competitive
3m NAT, FG
3H! fit, inv+ (while 1S-(2S!))
3M 競叫
3S! spl (while 1H-(2H!))
3N S/O
4m! spl
4M S/O