CS System
CS System is a bridge bidding system, was invented by Mr. Chaitad Suriya, who was Thai national team. CS stands for "Complete System" and also "Chaitad Suriya". By a word "Complete", the system integrates points, shapes, and losers altogether.
Fundamental
Opening | HCP | Losers | Details |
---|---|---|---|
1♣ | 13-18 | 5-7 | ♣ (0+), unbalanced hand, no 5 cards major |
1♦ | 16-21 | 4-6 | ♦ (0+), any distribution |
1♥, 1♠ | 12-15 | 5-7 | 5-cards suit unbalanced hand |
1NT | 13-15 | 7-8 | balanced or semi balanced hand |
2♣ | 21+ | 0-4 | balanced or semi balanced hand |
16+ | 0-3 | any distribution unbalanced hand G/F | |
2♦ | 6-12 | 7-8 | ♥ or ♠ (6+), weak |
2♥, 2♠ | 12-15 | 5-6 | 6-cards suit unbalanced hand with two top honors or three of five |
2NT | 21-22 | balanced or semi balanced hand | |
3♣ | 12-15 | 3.5-4.5 | ♣ 5-cards + ♥ or ♠ 5-cards |
3♦ | 12-15 | 3.5-4.5 | ♦ 5-cards + ♥ or ♠ 5-cards |
3♥, 3♠ | 6-12 | 6-7 | 7-cards suit preemptive |
3NT | 4-5 | Gambling, solid 7-card minor suit leading with AKQ, no more than 1 K outside | |
4♣ | 12-15 | 3.5-4.5 | ♣ 5-cards + ♦ 5-cards |
4♦ | 12-15 | 3.5-4.5 | ♥ 5-cards + ♠ 5-cards |
Advantages
- System is more precise than other systems which have wide range of points. CS System range is 3 or 6 points in opening bid and 3 points in first rebid with clear distribution, the responder completely knows the potential contract which is either part score or game.
- System is not vulnerable to preemptive bids and overcalls. According to limited range of points and clear distribution, a player completely knows the hand and can place the right contract.
- System provides more information for bidding game and slam not only from points. Because the system incorporates number of losers into a hand in every bidding, a responder can easily use cover cards to find the chances of game and slam.
References
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