Overview

The Precision Diamond system provides a solution to the flaws in the Standard American bidding convention (SAYC). There are 6 notable features of my bidding system. The 1st feature is the ability of the responder to show his 5-card major suit immediately using the Casey-Jacoby Transfer. The 2nd feature is that Precision Diamond permits the opener to show his points within a 2p range from 16-21 points using the Casey Shift and the Strong 2 opening. The 3rd feature is the ability of the overcaller to show his 4-card major suit immediately by assigning 1NT to show 4s. The 4th feature of Precision Diamond is the ability of the Keycard-Asker in a slam contract to ascertain whether the opener has the trump queen using the Casey RKC method. The 5th feature is the ability of the opener to show keycards, including the trump queen, at the 4-level in the case of a minor suit slam attempt using Minorwood. The 6th feature is the ability of the opener to find a slam with a minor suit fit using the Casey Minor Rebid convention.

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9781796041262

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