lamford Posted May 7, 2018 Report Share Posted May 7, 2018 [hv=pc=n&s=sqjh765dq842cak42&w=s4hqjt3d653cqt753&d=s&v=n&b=15&a=ppp4sppp]266|200[/hv]Defence is tough. You decide to pass your 12-count as dealer at adverse, playing a weak NT, and are on lead after a simple auction. You cash two high clubs, all following, and now have to plan to take two more tricks. What is your choice? 1 Quote Link to comment Share on other sites More sharing options...
rhm Posted May 7, 2018 Report Share Posted May 7, 2018 Hard to see how a club continuation can hurt. For a diamond switch to be right, declarer must have something like 3 hearts and a slow diamond loser. Among others this means the 4♠ preempt would have to be based on a 6 card spade suit. My QJ in spades argues against that. If he has bid that way with ♠AKT9xx ♥Axx ♦Ax ♣xx or ♠AKT9xx ♥AKx ♦xx ♣xx I pay of. Rainer Herrmann Quote Link to comment Share on other sites More sharing options...
lamford Posted May 7, 2018 Author Report Share Posted May 7, 2018 If he has bid that way with ♠AKT9xx ♥Axx ♦Ax ♣xx I pay of. Declarer has more than six spades. Quote Link to comment Share on other sites More sharing options...
Cyberyeti Posted May 7, 2018 Report Share Posted May 7, 2018 Hard to see how a club continuation can hurt. Declarer has AK9xxxx, AK, Ax, xx (which admittedly is a pretty big 4♠ 4th in), either partner ruffs high and declarer pitches a diamond or he ruffs low and the trump loser disappears. Even worse, partner has ♠Kxx and declarer's hand is otherwise high and he ruffs low. Quote Link to comment Share on other sites More sharing options...
lamford Posted May 8, 2018 Author Report Share Posted May 8, 2018 Declarer has AK9xxxx, AK, Ax, xx (which admittedly is a pretty big 4♠ 4th in), either partner ruffs high and declarer pitches a diamond or he ruffs low and the trump loser disappears. Even worse, partner has ♠Kxx and declarer's hand is otherwise high and he ruffs low.It seemed to me that a heart could not be right, as that would fail if declarer had Ax or Axx in hearts. A club is needed when declarer has something like AKxxxxx Kx(x) A(x) xx but will not work if declarer has the spade 10 which he is about 70% to have. A spade works when declarer has AKxxxxx A(x) AK(x) xx, but again fails if declarer has the ten of spades. AT9xxxxx A(K) A(K) xx with no losers outside trumps needs a club switch. I think there are slightly more hands where it is right to exit with a trump, but it is very hard to know which hands would open 4S in fourth. Quote Link to comment Share on other sites More sharing options...
rhm Posted May 8, 2018 Report Share Posted May 8, 2018 It seemed to me that a heart could not be right, as that would fail if declarer had Ax or Axx in hearts. A club is needed when declarer has something like AKxxxxx Kx(x) A(x) xx but will not work if declarer has the spade 10 which he is about 70% to have. A spade works when declarer has AKxxxxx A(x) AK(x) xx, but again fails if declarer has the ten of spades. AT9xxxxx A(K) A(K) xx with no losers outside trumps needs a club switch. I think there are slightly more hands where it is right to exit with a trump, but it is very hard to know which hands would open 4S in fourth.I agree that a trump switch caters to most conditions.A diamond switch looses when declarer has something like AKxxxxxx A Kx xx A club continuation is only necessary if declarer has AKxxxxxx Kx A xx and partner has the spade ten or the above when partner has the king and declarer 8 spades and no loser in the red suits. 1 Quote Link to comment Share on other sites More sharing options...
lamford Posted May 8, 2018 Author Report Share Posted May 8, 2018 I agree that a trump switch caters to most conditions.A diamond switch looses when declarer has something like AKxxxxxx A Kx xx A club continuation is only necessary if declarer has AKxxxxxx Kx A xx and partner has the spade ten or the above when partner has the king and declarer 8 spades and no loser in the red suits.Declarer actually had AK9xxxx A AKJ xx and I wrongly played a club, and partner ruffed with the ten, but the diamond loser went away. Mea culpa. Quote Link to comment Share on other sites More sharing options...
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