BridgeMatters

This blog provides supplementary thoughts and ideas to the www.bridgematters.com site. If you haven't seen the main site, there is a lot there including the Martel and Rodwell interviews, photos, and articles. This blog is focused on advancing bridge theory by discussing the application of new ideas. All original content is copyright 2009 Glen Ashton.

Friday, August 14, 2009

Netherlands - World Championships System Review

Bertens-Bakkeren

http://www.worldbridge.org/people/person.asp?qryid=4567
http://www.worldbridge.org/people/person.asp?qryid=15719
Summary: many years of world class experience

Approach: Modern (i.e. 1C bal or Cs)

1C: 2+, natural or 12-14/18-19 bal
1D: 4+
1M: 5+ (4 possible in 3rd)
1NT: 14+-17- (semi-bal possible)
2C: Semi-Multi: Weak, 3-10 5+Ds, 20-21 Bal, 26-27 Bal, Game Force one suiter
2D: Semi-Multi: Weak, 3-10 5(6)Hs, 22-23 Bal, 28-29 Bal, Game Force two suiter
2M: 2H: Semi-Multi: Weak, 3-10 5(6)Ss, 24-25 Bal, 30-31 Bal, Game Force three suiter. 2S: Weak, 3-10, 5S+5m, NV vs. Vul 1/3 can be 5S+4m
2NT: 5-5ms, weak or game force, 5m4m possible NV vs. VUL in 3
1NT Overcall: range not provided, likely same as opening
Jump Overcalls: Weak, 1C-2D 5H + 4+S
Cues: 1M-2M: OM+ m, 1D-2D: Ms, 1C-2C : Cs
1X Relays/1C Transfers/Gazzilli: None

Watch for: Semi-Multis 2C/D/H, Ask if Bal hands can open 1D, Ask 1NT overcall range


Brink-Drijver

http://www.worldbridge.org/people/person.asp?qryid=3391
http://www.worldbridge.org/people/person.asp?qryid=16819
Summary: many years of world class experience

Approach: Modern (i.e. 1C bal or Cs)

1C: 2+, natural or 12-14/18-19 bal
1D: 5+ or 4-4-4-1
1M: 5+
1NT: 15-17, 9-12 NV vs. VUL in 1st
2C: Strong: Any Game Force
2D: Weak, 3-10, 5+Ds
2M: Weak, 3-10, 5+M
2NT: 21-23
1NT Overcall: range not provided, over M 4OM+5+m, over m 4M+5+om
Jump Overcalls: Weak, 1C-2D Ms
Cues: 1M-2M: OM+ m, 1D-2D: Ms, 1C-2C : Cs
1X Relays/1C Transfers/Gazzilli: 1D/1M-2C Relay

Watch for: Ask weak two style, Ask 1NT overcall range

de Wijs-Muller

http://www.worldbridge.org/people/person.asp?qryid=21130
http://www.worldbridge.org/people/person.asp?qryid=4569
Summary: many years of world class experience

Approach: Big Club

1C: 16+
1D: (3)4+, unbal, 11-15, only 3D if 4-1-3-5 or 1-4-3-5, can be light and/or Bal in 3rd
1M: 5+ (4 possible in 3rd), 11-15
1NT: 12+-15 (can be 11 in 3rd), semi-bal possible
2C: 6+Cs, 11-15
2D: Short D, 11-15
2M: Weak, 5-10, (5)6M
2NT: Weak, 7-10,5-5ms
1NT Overcall: 15-17
Jump Overcalls: Weak except Vul jumps to 2 Intermediate, 1C-2D Ms
Cues: 1M-2M: OM+ D, 1m-2D: Ms
1X Relays/1C Transfers/Gazzilli: 1D/S-1NT Relay, 1H-1S Relay

Watch for: Big Club, short D 2D

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