Non-Natural System Discussion

2,672 topics in this forum

1. relays - some technical Qs

   By david_c, November 2, 2005
   • 3 replies
   • 1.1k views
   • 
   • DelfinoD
   • November 9, 2005

2. Gazzilli question

   By Gerben42, January 11, 2006
   • 3 replies
   • 1.6k views
   • 
   • Chamaco
   • January 11, 2006

3. Optional (Mafia) Canapè openings & neg. dbls

   By Chamaco, October 19, 2005
   • 3 replies
   • 880 views
   • 
   • luke warm
   • October 19, 2005

4. fast arrival or not?

   By shevek, August 25, 2017
   • 3 replies
   • 1.7k views
   • 
   • all loomis
   • August 26, 2017

5. questions about IMPrecision

   By straube, January 21, 2012
   • 3 replies
   • 1.8k views
   • 
   • straube
   • January 25, 2012

6. precision 1[_CL] - 1[R_DI] - minor

   By LoneMonad, July 5, 2010
   • 3 replies
   • 2.1k views
   • 
   • Apollo81
   • July 8, 2010

7. Unusual Reverse

   By dokoko, October 20, 2018
   • 3 replies
   • 1.1k views
   • 
   • HardVector
   • October 21, 2018

8. 1D overcall

   By rwbarton, June 27, 2012
   • 3 replies
   • 2k views
   • 
   • dake50
   • June 29, 2012

9. Precision partners

   By PL53, December 27, 2012
   • 3 replies
   • 1.8k views
   • 
   • FM75
   • December 27, 2012

10. Question for relayers

    By straube, February 25, 2010
    • 3 replies
    • 974 views
    • 
    • rbforster
    • February 26, 2010

11. Transfer responses to intermediate, artificial 1D opener?

    By jota981, April 29, 2013
    • 3 replies
    • 1.8k views
    • 
    • mycroft
    • April 30, 2013

12. Nightmare

    By jaz1104, May 6, 2008
    • 3 replies
    • 1.8k views
    • 
    • rory74
    • May 23, 2008

13. Verhees/Prooijen club system

    By Schultz112, August 30, 2014
    • 3 replies
    • 4.6k views
    • 
    • DJNeill
    • June 2, 2016

14. Precision: 1C-(1D)- Dbl-pass-?

    By Chamaco, June 29, 2004
    • 3 replies
    • 826 views
    • 
    • mikestar
    • June 30, 2004

15. A class of spade systems

    By nullve, January 17, 2018
    • 3 replies
    • 1.9k views
    • 
    • nullve
    • January 29, 2018

16. Grue and moss' "Unnatural System"

    By 1Wishbone1, August 27, 2017
    • 3 replies
    • 2.5k views
    • 
    • steve2005
    • August 27, 2017

17. Polish Club with inverted two-bids

    By Antoine Fourrière, February 19, 2004
    • 3 replies
    • 1.6k views
    • 
    • Antoine Fourrière
    • February 26, 2004

18. Kokish Relay

    By sheilafran, April 6, 2020
    • 3 replies
    • 168 views
    • 
    • akwoo
    • April 6, 2020

19. Toad Club Relay Precision system

    By A2003, September 12, 2008
    • 3 replies
    • 1.5k views
    • 
    • akhare
    • September 13, 2008

20. Skip turbo method.

    By benlessard, January 27, 2017
    • 3 replies
    • 2.1k views
    • 
    • benlessard
    • January 27, 2017

21. 2m As Strong 5cM - GCC Question

    By pbleighton, January 25, 2007
    • 3 replies
    • 1.3k views
    • 
    • glen
    • January 25, 2007

22. Defense to Polish Club / Swedish Club

    By mgoetze, December 12, 2010
    • 3 replies
    • 2.6k views
    • 
    • Fluffy
    • December 13, 2010

23. 1C-1D, 1S-2S

    By straube, September 23, 2019
    • 3 replies
    • 576 views
    • 
    • straube
    • September 28, 2019

24. 2C over 1NT = any-2suiter

    By soldatoJ, May 9, 2004
    • 3 replies
    • 697 views
    • 
    • mikestar
    • May 9, 2004

25. Question about XYZ

    By Free, April 7, 2008
    • 3 replies
    • 996 views
    • 
    • cherdano
    • April 7, 2008