It is difficult to imagine Adelheid ever having "fun", at least outwardly. Once she gets to know a person she is more relaxed and enjoys passing time with people, especially her children and family. She especially likes board games and singing.
Here is a short video demonstrating the game play of Mühle.
Her favourite game is "Mühle", a game similar to 9 Men's Morris. This is an easy game to play, as you can have as simple a board as drawing on the dirt, or a fancy wooden board with beautiful pieces. The object of Mühle is simple - capture your opponents pieces before they capture yours. Preventing your opponent from moving is another way to win.
The origin of the game goes back a long way, and is therefore disputed. However it is believed that the game was well known to the Romans, who travelled throughout Switzerland and would have brought the game with them.
"Play begins with a vacant board and with both players having nine counters. Each player in turn places a counter on one of the positions (line intersections) on the board. After all nine counters are placed on the board, play continues by moving the tokens one at a time along any of the lines to the next adjacent open point. If, either during initial placement or subsequent movement, a player places three tokens in a line of the board, creating an arrangement called a "mill," he or she is allowed to remove one of the opponent's tokens from the board, as long as it is not an element of a mill belonging to the opponent. Once a mill is established, the player may "open" it by moving a token off the common line, then on the next turn "close" it by moving the token back, thus forming a new mill and allowing the removal of another opposing piece." (from "Medieval Games and Recreation", compiled by Tammy Pattie, 2011. Retrieved from: https://castle.eiu.edu/reading/MEDIEVALGAMES.pdf