Split Deck, Bicycle, Poker, Blue Backed

The magician shows a deck that has been cut in half diagonally.

The cards for both halves are fanned face up to show they are mixed then turned back face down.

A spectator then each select one card from the first half of the deck,

and a second spectator selects a card from the second half of the deck.

Amazingly, when the selected halves are put together and turned face up they match to form a complete card!

A truly baffling effect!