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Non-Natural System Discussion

Precision, Polish Club, Roman Club, anything else that makes filling out a CC interesting...

2,672 topics in this forum

  1. 1s x

    • 7 replies
    • 1.5k views
    • 11 replies
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  2. major raises

    • 9 replies
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    • 18 replies
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    • 6 replies
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  3. pass double inversion

    • 11 replies
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  4. 1S-2D

    • 1 reply
    • 1k views
  5. 2N as LR+

    • 4 replies
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  6. 1 heart 1 spade

    • 14 replies
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    • 17 replies
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    • 3 replies
    • 1.1k views
    • 19 replies
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  7. 1D-1M, 1N

    • 3 replies
    • 992 views
    • 21 replies
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  8. 1C-1H semipositive

    • 10 replies
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  9. Xfers over 1 diamond

    • 23 replies
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    • 35 replies
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  10. 1C-1D semipositive 1 2 3 4

    • 98 replies
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  11. Rubinsohl

    • 5 replies
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  12. positive structure

    • 5 replies
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  13. Taking the plunge 1 2

    • 32 replies
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  14. Ultra Club Relay

    • 7 replies
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    • 3 replies
    • 1k views
  15. reverse relays

    • 0 replies
    • 610 views
    • 29 replies
    • 3.2k views
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