LESSON 5.1: GENERAL RULES OF JUMP SHIFT RESPONSES

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a) A jump shift response is a responding bid in a new suit at a level one rank higher than required:

 1 - 2 and 1 - 3 are examples of jump shift responses

b) A jump shift response usually shows a 19+ HCP distributional hand with a solid five-card or more suit

c) A jump shift response may also be made in a short suit when holding a strong distributional 19+ TP hand with a four-card or more support for opener's suit

d) Jump shift responses in notrump apply to 10+ HCP balanced hands over one of a minor and to 13+ HCP balanced hands over one of a major openings

see Lesson 4. Jump responses in notrump

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