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Only three Souths chose to open 1♦ and rebid 2♣. The other two both raised to 3N. All three Easts led ♥T. Why did my GIB not cover? (The other two did.)
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#1
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Posted 2011-March-09, 21:13
Only three Souths chose to open 1♦ and rebid 2♣. The other two both raised to 3N. All three Easts led ♥T. Why did my GIB not cover? (The other two did.)
#2
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Posted 2011-March-10, 12:41
Bbradley62, on 2011-March-09, 21:13, said:
Only three Souths chose to open 1♦ and rebid 2♣. The other two both raised to 3N. All three Easts led ♥T. Why did my GIB not cover? (The other two did.)
Computers choose plays by simulating outcomes. The other two times, the simulation suggested that covering was correct. At your table, the simulation came up with the opposite conclusion.
Or did you phrase your question poorly?
#3
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Posted 2011-March-10, 23:24
Under what possible conditions is it right to not cover? When West holds the singleton ♥K? I find it hard to believe that a simulation (even of small sample size) would show that it's better to duck.
#4
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Posted 2011-March-11, 04:34
It's a safety play. Suppose the ♥ break was 2-5, West holding Kx. If you cover, West plays the King and if N takes the ace, West can clear the suit when back in. If you duck and just take it with the ace, West has no good solution. Even if you make the "mistake" of covering the next one to lose to that Kx, you've wasted one of East's entries, and will need another to clear the suit, and another to run it after. Note that not covering rarely actually costs a trick here.
Wayne Somerville
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