The hand was played with screens (N/E on one side)
W N E S
-- -- 1♣ p
1♥ p 3♥* p
4♦* p 5♣* p
6♥ p p p
Opening lead: ♦K, N/S -980.
3♥ invitational, an unbalanced hand
4♦ West to South: Last train, East to North: ♦ shortness
Decision by TD: TD consulted E/W system script and found two chapters, according to which either might have applied, so he ruled MI. Furthermore, the TD consulted 7 players, who all would have led a ♠ given the explanation ♦ shortness, so decided to let score stand.
N/S appeal on the ground that with the correct explanation, it logically follows that ♠AK are missing, and that they also consulted 3 comparable players, two of which would lead ♦K.
Discuss.
Bonus question: Playing last train, logically this sequence means you'd bid it without a side control, as in the actual hand. Are you on firm ground in your partnership?

Help
