-------------------------------------------------------------------------------- bidding systeem : C:\TIS\BBN\versions\1.6\BiedermeijerGroen.bbn -------------------------------------------------------------------------------- NT-distribution <4443> <4432> <5332>, 5+ crd C/D Stops all us stop in C, us stop in D, us stop in H, us stop in S -------------------------------------------------------------------------------- + 1. Uncontested -------------------------------------------------------------------------------- The source for this Dutch bidding system can be found at: http://www.bridge.nl/groepen/Bridgeblad/Bridge_biedermeijergroen.htm -------------------------------------------------------------------------------- + 1.1. Openingsbid -------------------------------------------------------------------------------- 1X - hcp 13-21, 4+ crd X 1NT - hcp 15-17, 'NT-distribution' 2C conventional 9+ tricks, game forcing hcp 23+, 'NT-distribution' 2X - 8+ tricks, trump X 2NT - hcp 20-22, 'NT-distribution' 3X preempt VULN +?, hcp 12-, 7+ crd X, 7+ tricks VULN -?, hcp 12-, 7+ crd X, 6+ tricks 4X preempt VULN +?, hcp 12-, 8+ crd X, 8+ tricks VULN -?, hcp 12-, 8+ crd X, 7+ tricks 5C/5D preempt hcp 12-, 9+ crd C/D, {{VULN +? AND 9+ tricks} OR {VULN -? AND 8+ tricks}} -------------------------------------------------------------------------------- + 1.2. Answer -------------------------------------------------------------------------------- + 1.2.1. 1X -------------------------------------------------------------------------------- 1X pass - hcp 5- 1Y round hcp 6+, 4+ crd Y 1NT - hcp 6-9, misses 4+ crd >X 2Y round hcp 10+, 4+ crd Y 2X - hcp 6-9, 4+ crd X, misses 4+ crd H/S >X 2Z jump; game hcp 13+, 6+ crd Z with hcp 6+ 2NT - hcp 10-12, misses 4+ crd H/S 3Z jump; game hcp 13+, 6+ crd Z with hcp 6+ 3X - hcp 10-11, 4+ crd X, misses 4+ crd H/S >X 3NT - hcp 13-15, misses 4+ crd H/S 4X (H/S) - hcp 12-15, 4+ crd X -------------------------------------------------------------------------------- + 1.2.2. 1SA Complex -------------------------------------------------------------------------------- 1NT pass - hcp 8- 2C Stayman hcp 8+, 4 crd H/S 2D - misses 4+ crd H/S 2H - 4+ crd H 2S - 4+ crd S 2NT - 4 crd H, 4 crd S 2D Jacoby 5+ crd H 2H - . 2H Jacoby 5+ crd S 2S - . 2NT - hcp 9, misses 4+ crd H/S 3NT - hcp 10-15, misses 4+ crd H/S -------------------------------------------------------------------------------- + 1.2.3. 2K -------------------------------------------------------------------------------- 2C 2D zwak . 2H/2S - 5+ crd H/S with (2+ crd A/K/Q) 2NT - hcp 10+, 'NT-distribution' 3C/3D - 5+ crd C/D with (2+ crd A/K/Q) -------------------------------------------------------------------------------- + 1.2.4. 2X -------------------------------------------------------------------------------- 2X 2NT afwijsbod 2- crd X 2Y - 5+ crd Y with (2+ crd A/K/Q) 3Y - 5+ crd Y with (2+ crd A/K/Q) 3X slam interest 3+ crd X, 3+ tricks 2D 5D no slam interest 3+ crd D, us 11 tricks 2H/2S 4H/S no slam interest 3+ crd H/S, us 10 tricks -------------------------------------------------------------------------------- + 1.2.5. 2NT Complex -------------------------------------------------------------------------------- 2NT pass - hcp 3- 3C Stayman hcp 3+, 4 crd H/S 3D - misses 4+ crd H/S 3H - 4+ crd H 3S - 4+ crd S 3NT - 4 crd H, 4 crd S 3D Jacoby 5+ crd H 3H - . 3H Jacoby 5+ crd S 3S - . 3NT - hcp 4-10, misses 4+ crd H/S -------------------------------------------------------------------------------- + 1.2.6. Preempts -------------------------------------------------------------------------------- 3C 3NT - 3+ crd C, {{VULN +? AND 2+ tricks} OR {VULN -? AND 3+ tricks}}, 'Stops all' 4C - 3+ crd C, 1+ tricks 5C - 4+ crd C, 2+ tricks 3D 3NT - 3+ crd D, {{VULN +? AND 2+ tricks} OR {VULN -? AND 3+ tricks}}, 'Stops all' 4D - 3+ crd D, 1+ tricks 5D - 4+ crd D, 2+ tricks 3H/3S 4H/S - 3+ crd H/S, 1+ tricks -------------------------------------------------------------------------------- + 1.3. Rebid -------------------------------------------------------------------------------- + 1.3.1. Rebid 1X -------------------------------------------------------------------------------- + 1.3.1.1. 1X 1Y -------------------------------------------------------------------------------- 1X 1Y 1Z - hcp 17-, 4+ crd Z 1NT - hcp 13-14, misses 4+ crd >=Y 2Z - hcp 17-, 4+ crd Z 2X - hcp 15-, 6+ crd X 2W reverse hcp 16+, 4+ crd W 2Y - hcp 15-, 4+ crd Y 2NT - hcp 18-19, 'NT-distribution' 3Z - hcp 18+, 4+ crd Z 3X - hcp 16+, 6+ crd X 3Y - hcp 16-17, 4+ crd Y -------------------------------------------------------------------------------- + 1.3.1.2. 1X 1SA -------------------------------------------------------------------------------- 1X 1NT pass - hcp 15-, misses 4+ crd