Opening 2 ♥ : 10-13 HCP                                         ≈ 6% apertures

                                                            5♥-4+m + shortage or 6+♥, denies 4♠

                                                                             

2♠   = asks for the minor.

 

      2NT = 6+♥ (6-3-2-2,6-3-3-1,6-4-2-1 or 7+) but not 6-4m-3-0

             3♣ = RELAY .

                  3♦ = 6♥-4m then 3♥ RELAY:

                       → 3♠ = 6♥-4♦-2-1 → 3NT = 6♥-4♣-2-1

                  3♥ = single-suiter 6♥ mini.

                  3♠ = single-suiter 6+♥ maxi with a shortage.

                       → 3NT = shortage?

                  3NT = one-suiter 6+♥-2-2-2, max.

             3♥ = to play.

             3♠ = 5 + ♠. Forcing.

 

      3♣   = 5♥-4+♣ or 6♥-4♣-3-0

            3♦ = RELAY . Research TRIPLETON .

                 3♥  = 5+♥-4+♣-3♦ (major shortage) **

                 3♠  = 5+♥-4+♣-3♠ (minor shortage) **

                 3NT = 5♥-5♣+-2-1. (No tripleton and not 6♥ )

            3♥,4♣ = invitational.

            3 ♠ = 5+ ♠. Ambitions, otherwise we relay.

      3♦   = 5♥-4♦ or 6 ♥-4♦-3-0

            3♥ = RELAY . Research TRIPLETON .

                 3♠  = 5♥-4♦-3+♣ or 6♥-4♦-3♣-0 (major shortage) **

                 3NT = 5♥-4♦-3♠-1             (minor shortage)

                 4♣  = 6♥-4♦- 3♠-0  (6th ♥ is bidden at 4th level).

                                                   3♠ = 5+ ♠. Ambitions, otherwise we relay.

      3♥   = 5♥-5♦-3♣-0.    → 4♣ = ♦ raise mini or ♥ raise ambitions + control.

      3♠ = 5♥-5♦-3♠-0.              → 4♦ = Min. → 4♥ = max.

      3NT = 5♥-5+♦-2-1.     → 4♦ = TURBO

      4m = 6♥(correct suit)-5m.

 

2NT = 5+ ♠ , invitational.

      3♣ = 4+♣ , 0-2 ♠

      3♦ = 4+♦ , 0-2 ♠

      3♥ = 6+♥ .

      3♠ = 3 cards mini.

      4♠ = 3 cards maxi.

 

3♣, 3♦ = 6+ cards. Forcing.

3♥   = invitational.

3♠   = 6+♠ . Forcing.

3NT = 4-4-3-2 ♥ (5m-3-3-2). Well guarded suits (especially tripleton).

4m = SPLINTER.

 

And now how to bid a slam ?