Monaco declared a NT Grand Slam escaping from a Lightner Double to a 7 club contract and found the 13th trick thanks to a squezze. Let's see how the facts were on the table:
Most doubles of low-level suit contracts are for take-out. However, once you have used one penalty double, all further doubles should be for penalties.
It is often right to skip Stayman when you have no ruffing value. For one thing, there is no point in seeking a fit when both hands may be completely flat. Secondly...
