Principle

After a 1♥ or 1♠ opening, we distinguish between 3- and 4+card support, and we have a means of indicating splinters (0/1-cards) using our custom Swiss convention.

Weak hands are bid via -1NT or -2♥♠ (classic).

All the limit and above 3-card fits are bid through -2♣, while the other first answers always indicate a 4+card support.

Full 1st menu

/ 1♥

- 1NT: 6-9, 0-2-♥ OR exactly 6 with 3+♥

- 2♥: 7-9(10), 3+♥

- 3♥: 2-5, no Aces, pre-emptive

- 2♣: 10+, 4+♣ OR 10+, 3-♥

- 3♣: 7-9, 4+♥ (Bergen)

- 3♦: 10-12, 4+♥ (Bergen)

- 2NT: relay, 10+, 4+♥ (Truscott)

- 3♠: PING, 10+, 4+♥, unknown 0-card (or, in the case of ♠: a 0/1 card) (Swiss)

- 4♣♦: 12-15, 4+♥, 1-♣♦

- 3NT: order partner to start bidding Controls (CO)

Continuing examples

/ 1♥ - 2♣: 10+, 4+♣ OR 10+, 3-♥

/ 2♦: relay bid, 12-14 OR 10+ with a 0/1

- 2♥: 10-11, 3-♥

- 3♥: 14+, Non Fast Arrival (slam trial?)

- 4♥: 12-13, Fast Arrival

- 2NT: 10-11, 4-5♣

- 3♣: 10-11, 6+♣

note: with 12+ and 6+♣, bid 3rd or 4th colour first, then return to ♣

- 3♦: 10-11, 4-♣ and 4-♦

/ 2♥: 11-14, 6+♥

/ 3♥: 15-19, 6+♥

/ 2NT: 15-19, 5-♥, no 0/1

/ 3♣♦: 15-19, 4+♣♦

/ 1♥ - 2NT: relay, 10+, 4+♥ (Truscott)

/ 3♥: min, (10)12-13, no 0/1

/ 4♥: max, 14-15, no 0/1

/ 3♠: PING, 14+

- 3NT: PONG

/ 4♣♦♥: 0-♣♦ or 0/1-♠

/ 4♣♦: 1-♣♦

/ 3♣: 16-17, no 0/1, ask partner for 0/1 (partner continues with Swiss if possible)

/ 3♦: 18+, no 0/1, ask partner for 0/1 (partner continues with Swiss if possible), game forcing

/1♥ - 3♣: 7-9, 4+♥ (Bergen)

/ 3♥: min, (10)12-15, no 0/1

/ 4♥: max, 16-17, no 0/1

/ 3♠: PING

- 3NT: PONG

/ 4♣♦♥: 0-♣♦ or 0/1-♠

/ 3♦: 16+, relay bid, no 0/1, ask for min/max? and 0/1?

- 3♥: min

- 4♥: max

- 3♠: PING

/ 3NT: PONG

- 4♣♦♥: 0-♣♦ or 0/1-♠

- 4♣♦: 1-♣♦