The king of hearts has five sons

The king of hearts has five sons is a little-known, but traditional American deduction card game.

[2] The following rules are based on Faidutti and Branham, [1]supplemented by CatsatCards.com:[3][unreliable source?]

Likewise the ten heart cards are shuffled and one is placed on the table.

The remaining twenty cards are then shuffled together and dealt to each player.

To do so, the suspected solution is written down on a piece of paper and the player looks at the face-down cards.