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Bridge for Beginners. Lesson 15 The Use of Doubles. Homework. KT87 QJ3 AT5 Q87. KQ87 QJ3 AT5 Q87. KQ87 QJ3 AT5 Q87. What are your bids in the sequences shown?. 1NT P 2 P. 1NT P 2 P. 1NT P 2 P. P 2NT P. 2 . ?.
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Bridge for Beginners Lesson 15 The Use of Doubles
Homework KT87 QJ3 AT5 Q87 KQ87 QJ3 AT5 Q87 KQ87 QJ3 AT5 Q87 • What are your bids in the sequences shown? 1NT P 2 P 1NT P 2 P 1NT P 2 P P 2NT P 2 ? P 2NT P 2 ? P 3 P 2 ? ? P 3NT ? ? 4 KQ QT9 AT5 QJT87 KQ QT97 AT5 QJ87 KQ J763 AT54 QJ7 1NT P 2 P 1NT P 2 P 1NT P 2 P P 2 P ? 2 P 3 P ? 2 P 3P 2 ? ? 4 ? 4 3NT ?
The Use of Doubles • With Pre-emptive bids it is easy to disrupt opponents bidding • You could do the same by making outrageous bids • You could always overcall when opponents bid game • But doubles keep you honest • Because the penalties become severe
The Use of Doubles • Penalty scores • Not Vul Vul • -1 • -2 • -3 • -4 • -5 • Plus 300 for each extra trick under • Look on back of * card • 100 • 300 • 500 • 800 • 1100 • 200 • 500 • 800 • 1100 • 1400
The Use of Doubles • If you double a contract and it makes • It can be expensive: • Each trick score is doubled • So 2NT or 2 of a major is game • Or 3 of a minor • 50 (for the insult) and overtrick penalties • Doubling opponents in 1 or 2 of a suit is therefore risky • There is a much better use for this *
The Take Out Double (TOX) • Any double of 1 or 2 of a suit is not for penalties • It asks partner to bid a different suit • To overcall we must have 5 of the suit • But we have seen many hands where we have opening points but no 5 card suit • And we had to PASS! • TOX allows us to compete
TOX Opponents open 1 A T 7 5 • 12 HCP • No 5 card suit • Bid * (TOX) • Asking Partner to bid a different suit 3 8 7 K Q 8 6 Q J
The Take Out Double (TOX) • TOX promises a number of things: • About 10+ HCP • 4 cards in any unbid major • Possibly support for unbid minors • If not a re-bid available • The first example was a classic example • With all the other suits covered • Not always that clear
TOX Opponents open 1 A T 7 5 • 12 HCP • We could bid 2 • We might miss a fit • Bid * (TOX) • If partner bids ’s we can re-bid ’s showing 5 of the suit 3 8 J 7 K Q Q 8 6
TOX Opponents open 1 A T 7 5 • 13 HCP and balanced • We would have opened 1NT • 1NT overcall would be 17 HCP • We have 4 of both majors • Bid * (TOX) • Re-bid 2NT if necessary K Q 8 4 A 3 T 8 6
TOX Opponents open 1 A T 7 5 • 13 HCP • We have 4 of both majors • 4 of opponents suit • Bid * (TOX) • * does not show shortage in their suit • Re-bid 2NT if partner bids 2 K Q 8 4 8 7 A T 3
The Take Out Double (TOX) • KEY ISSUE • When you make a TOX partner will expect 4 in any un-bid major • And may bid game with a good fit and not many HCP • Only bid TOX with the majors covered!!
TOX Opponents open 1 A T 7 5 • 11 HCP • We have 4 ’s and 5 ’s • We could bid 1 • May miss a fit in ’s • Bid * (TOX) • Re-bid 2if partner bids 2 • Showing the 5/4 shape Q 8 5 4 2 A 5 J T
TOX LHO opens 1, partner Passes, RHO bids 2 A T 7 5 • 10 HCP • We have 4 ’s and 5 ’s • Bid * (TOX) • Opponents have more HCP • Your only chance to bid • Show the other suits 4 T 7 5 K J Q 9 7
TOX • A very useful bidding tool • You MUST have 4 of un-bid majors • Consider what you will re-bid if partner bids your short suit • Compete more at favourable vulnerability • Only bid TOX with the majors covered!!
Doubles • All *’s of suit bids up to 2 are for take out • All *’s of pre-empts are for take out and show some strength • Penalty *’s of suit bids must be alerted • *’s of NT bids are for penalties • Showing 16+ HCP • *’s of subsequent suit bids are for penalties • And should be alerted
Responding to TOX • When partner bids a TOX and RHO passes • You MUST bid • Even with a very weak hand • Unless you wish to convert it to a penalty * having lots of opponents suit • With 0-7 HCP bid at the cheapest level • With 8+ HCP and a major fit jump a level
Responding to TOX LHO opens 1, partner *’s, RHO passes K • 10 HCP • We have 4 of each un-bid suit • Agree the major • Partner has promised 4 ’s • Bid 3 • Agree the suit and compete T 4 3 2 4 3 Q J A 6 5 4
Responding to TOX LHO opens 1, partner *’s, RHO passes 9 8 5 • 5 HCP • We have 4 ’s • Agree the major • Partner has promised 4 ’s • Bid 1 • Agree ’sand show weakness 9 8 7 5 6 5 8 7 K Q
Responding to TOX LHO opens 1, partner *’s, RHO passes 5 • 0 HCP • We have 5 ’s • Agree the major • Partner has promised 4 ’s • You MUST bid - Bid 1 • Agree ’sand show weakness 9 8 7 6 5 6 5 8 7 9 8 7
Responding to TOX LHO opens 1, partner *’s, RHO passes Q T 7 • 14 HCP • We have 5 ’s and 4 ’s • Bid 2 • Show strength, deny 4 card majors • If partner bids again bid 3NT T 5 4 3 K Q A K 7 6
Responding to TOX Partner passes, RHO opens 1, you pass, LHO bids 2, partner doubles, RHO passes A T 7 4 • 8 HCP • They are weakish with ’s • Partner passed first time • Bid 2 • Don’t punish partner by jumping • Try to force opponents to 3 level 5 4 5 4 K J 8 7 6
Responding to TOX Partner passes, RHO opens 1, you pass, LHO bids 2, partner doubles, RHO passes A 4 3 • 8 HCP • Partner has both minors • You do not have a fit • Convert to penalties – Pass! • The will probably bid on • But you have good defence Q J 5 4 3 5 4 J 8 7
Negative Doubles When partner has also bid LHO 1 Partner 2 RHO 2 Can you bid? A J 6 3 • 10 HCP • Bid * • Shows 4+ cards in 2 un-bid suits • Called negative double • Or sputnik double 4 3 K 5 J 4 J 8 7
Summary • Doubles are a very powerful tool • Allows us to show 4 card suits • Enables us to compete more • Tells partner about our hand • Doubles of suits up to 2 or pre-empts are for take out • Even when partner has bid • Doubles of NT are for penalties • Showing 16+ HCP