15-12-2014, 12:57 PM 
		
	
	
		Ah yes, the yoghurt...
it is clear that a cunningly arranged distribution of edible items to one player during the game, emanating from one delegation or the other, could convey a kind of code message. Thus a yoghurt after move 20 could mean "we instruct you to offer a draw" or a sliced mango could mean "we order you to decline a draw". A dish of marinated quails' eggs could mean "play N-N5 at once" — and so on. The possibilities are limitless.'
Karpov-Korchnoi 1978.
	
	
	
	
it is clear that a cunningly arranged distribution of edible items to one player during the game, emanating from one delegation or the other, could convey a kind of code message. Thus a yoghurt after move 20 could mean "we instruct you to offer a draw" or a sliced mango could mean "we order you to decline a draw". A dish of marinated quails' eggs could mean "play N-N5 at once" — and so on. The possibilities are limitless.'
Karpov-Korchnoi 1978.

 
 

