Ingenious (board game) board incorporates indentations to hold the players' tiles as well as holes for the scoring pegs. Notably, there is a different tile distribution in the travel version of the game: 2 of each double tile and 3 of every other colour combination, compared with 5 and 6 respectively in the original game. "Einfach Genial Knobelspass" (Simply Ingenious Puzzles), also from Kosmos, uses cardboard versions of the tiles from the original game. The player has one of each of the 21 different tile combinations and for each puzzle must place these in the correct positions on a pre-printed sheet to match
Board game Networks and Urban Spaces: The Case of the Telegraph Messenger Boy", that families who could afford the deluxe version of the game in its chromolithographed, wood-sided box would not "have sent their sons out for such a rough apprenticeship in the working world." Margaret Hofer described the period of 1880s–1920s as "The Golden Age" of board gaming in America. Board game popularity was boosted, like that of many items, through mass production, which made them cheaper and more easily available. Although there are no detailed statistics, some scholars suggest that the 20th century saw a decline in the popularity of