Enigmas & puzzles
Card Sharp
Barry R Clarke
Professor Neuron was tormenting his nephew Trifle with a card trick. He placed five cards in a line on the table (as shown), three face down, with the jack of diamonds and the five of spades face up. Neuron then announced that the following facts are true about the five cards.
(1) There is at least one card of each suit, but no two cards of the same suit are adjacent.