We don’t play a very complicated structure. Everything is based on the 2♦ call which denies any special hand, and could be BAL MIN, or 5M/4m MIN. After this 2♥ is relay, check second column.
| 2♦ | Normal hand, denies 4OM or 6M | |
| 2♥ | NAT | Relay |
| 2♠ | NAT, doesn’t promise extras | 5M/5m, MIN |
| 2NT | NAT, 13-15 or 18-19 | 11-13 BAL |
| 3♣/♦ | 14+, 5-5 | 5-4, NAT |
| 3♥/1♠ | Same | |
| 3M | NAT suit for max 1 loser, SI | |
| 3NT | 16-17 BAL | |