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
Categories for the Working Mathematician Categories for the Working Mathematician Categories for the Working Mathematician (CWM) is a textbook in category theory written by American mathematician Saunders Mac Lane, who cofounded the subject together with Samuel Eilenberg. It was first published in 1971, and is based on his lectures on the subject given at the University of Chicago, the Australian National University, Bowdoin College, and Tulane University. It is widely regarded as the premier introduction to the subject. The book has twelve chapters, which are: Chapters XI and XII were added in the 1998 second edition, the first in view of its importance in string