I meant shouldn't be a difficult question for Viking. I used the suggested email address and actually got a phone call from Kayson at Viking. He said Mah Jongg is a usual activity that they offer but he couldn't guarantee that a set might not be damaged or missing some pieces. I would hope that people playing with the sets would be careful with them but things do happen. There is probably room in my suitcase to take my set but it weighs about 6 lbs. So I'll just hope there are sets onboard. Going forward I will address all my questions through that email address and not via the chat function. Thanks