Something doesn't need to be complex to be special. Consider this card deck order: 8C KH 3S 10D 2C 7H 9S 5D QC 4H AS 6D JC 8H KS 3D 10C 2H 7S 9D 5C QH 4S A

Something doesn't need to be complex to be special. Consider this card deck order: 8C KH 3S 10D 2C 7H 9S 5D QC 4H AS 6D JC 8H KS 3D 10C 2H 7S 9D 5C QH 4S AD 6C JH 8S KD 3C 10H 2S 7D 9C 5H QS 4D AC 6H JS 8D KC 3H 10S 2D 7C 9H 5S QD 4C AH 6S JD As far as mathematics go, it's as probabilistically likely as any other sequence, but among deck orders, this particular sequence is special because not only it happens more often than most other deck orders, but it even has a name. As it turns out, that sequence can be easily reconstructed from a mnemonic and it's often used in magic tricks.