On Monday, July 31, 2023 at 10:28:39 AM UTC+7, John Kruiniger wrote:
W N E S
1H X no no
1S X
West opens 1H, E passes and S passes thereby converting the first X to penalties.
S obviously has a bunch of hearts and enough values to think they're
taking 1H down.
W runs to 1S and N doubles again.
What does North's second double mean?
Penalties.
South's penalty pass conveys the message "despite that 1-level penalties are seldom the best spot
this hand is probably an exception." North respects this message and doubles 1S for penalties
with good spades. It is easy to construct "normal" hands where North-South have no game
but can defeat either 1H or 1S by 2 tricks or more.
If the double is not for penalties, North will often have no logical call at all.
Cheers,
James
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