Features:

• 1♣ opening -16+ HCP, any shape:

  • • 1♦ - 0-7 HCP, any shape:

      • • 1NT - 16-19 HCP (NT style);

        • 2NT - 20-22 HCP (NT style);

        • 3NT - 23-27 HCP (NT style);

        • 4NT - 28-30 HCP (balanced);

        • 5NT - 31-33 HCP (balanced);

        • 5NT - 34-36 HCP (balanced);

        • 1M/2m - 5+, non-forcing;

        • 2M/3m - 5+, F1;

        • 3M/4m - 5+, sets trump, GF,

    • 3m - 4-7 HCP, 7+m;

    • 3M - 4-7 HCP, 6+M;

    • 4M - 4-7 HCP, 7+M or 0-7 HCP, 8+M;

    • 1♥ - 8-11 HCP, ≠4441;

    • 1♠ - 12+ HCP, 5+♠;

    • 1NT - 12+ HCP;

    • 2m - 12+ HCP, 5+m;

    • 2♥ - 12+ HCP, 5+♥;

    • 2♠ - 8-11 HCP, 4441;

    • 2NT - 12+ HCP, 4441;

• 1♦ opening -11-15 HCP, 2+♦;

• 1♥ and 1♠ opening - 11-15 HCP, 5+M;

• 1NT opening - 13-15 HCP, bal;

• 2♣ opening - 11-15 HCP:

  • • 2♦ - 10+ HCP, ask for majors:

      • • 2♥ - four ♥:

        • 2♠ - four ♠:

        • 2NT - 11-12 HCP, 6 ♣, balanced;

        • 3♣ - 6♣ and singleton;

        • 3♦ - 13-14 HCP, 6 ♣i i 4♦;

        • 3♥ - 13-14 HCP, 6 ♣, singleton ♥;

        • 3♠ - 13-14 HCP, 6 ♣, singleton ♠;

        • 3NT - 13-14 HCP, 6 ♣.

    • 2♥ - 7-11 HCP, 5 ♥, non forcing;

    • 2♠ - 7-11 HCP, 5 ♠, non forcing;

    • 2NT - 5-9 HCP, transfer for ♣ or 14+ HCP, 5-5:

      • • relay 3♣:

          • • 3♦ - 5+♦ and 5+♥, forcing;

            • 3♥ - 5+♥ and 5+♠, forcing;

            • 3♠ - 5+♠ and 5+♦, forcing,

    • 3♣ - 11-12 HCP,  inviting;

    • 3♦/3♥/3♠ - 11-13 HCP, 6+, inviting.

• 2♦ - 11-15 HCP, 3415, 4315, 4414, 4405:

  • • 2♥ natural, signoff;

    • 2♠ natural, signoff;

    • 2NT artificial and game-forcing, showing 11+ HCP and asking opener to further describe his hand:

      • • 3♣ - 3415 shape;

        • 3♦ - 4315 shape;

        • 3♥ - 4414 shape, 11-13 HCP;

        • 3♠ - 4414 shape, 14-15 HCP;

        • 3NT 4-4-1-4 shape, 14-15 HCP, and the king or ace of diamonds;

        • 4♣ - 4405 shape, 11-13 HCP;

        • 4♦ - 4405 shape, 14-15 HCP;

    • 3♣ - natural, signoff;

    • 3♦ - 6+♦;

    • 3♥ - preemptive;

    • 3♠ - preemptive.