awm, on Mar 15 2008, 04:36 PM, said:
Basically, if north opened 1NT because he thought his hand is worth ten points it's not a psych; if he opened 1NT because he wanted to mess with the opponents opposite a passed partner by opening a hand not in his 1NT range, it is a psych.
For better or for worse, a psych is a term defined within the laws, as a "deliberate and gross misstatement of honour strength or suit length".
Thus, as awm points out, motive is important ("deliberate"). However the logical connector "and" is used rather than "or", so the qualifier "gross" is also important. I would not regard a departure of 1 point from the agreed system as "gross", even if the motive test is satisfied (which is uncertain, in my view, although likely).
As others have pointed out, there may well be disclosure issues at stake here, particularly as a 1 point departure in this position contains a certain degree of safety.
But E/W certainly contributed to their own demise. Had North actually held one of South's points, there would have been no suggestion of complaint, and yet the same outcome would have resulted.
Psych (pron. saik): A gross and deliberate misstatement of honour strength and/or suit length. Expressly permitted under Law 73E but forbidden contrary to that law by Acol club tourneys.
Psyche (pron. sahy-kee): The human soul, spirit or mind (derived, personification thereof, beloved of Eros, Greek myth).
Masterminding (pron. m

s

t

r-m

nd

ing) tr. v. - Any bid made by bridge player with which partner disagrees.
"Gentlemen, when the barrage lifts." 9th battalion, King's own Yorkshire light infantry,
2000 years earlier: "morituri te salutant"
"I will be with you, whatever". Blair to Bush, precursor to invasion of Iraq